Professional Generator Service & Warranty Repairs Services

"Excellent communication. Clean, efficient service."

"We're very happy with the service received from Core. Lee was friendly, explained the issues, was fast and efficient, and we're happy to have found someone so close to home who is willing to take on small residential electrical work. It will be our go-to for all our electrical needs in the future..."

"Business was very responsive to my ever changing schedule. Was on time, knowledgeable, and finished product looks great!"

"Core Electric installed underground wiring to our barn and installed lights and plugs in the barn and tack room. From start to finish, they were professional and communicative, all while performing quality work. I would highly recommend Core Electric."

"Excellent service every time. I highly recommend Core Electric."

"We have used Core Electric and Lee Gibson on many occasions, he has always been knowledgeable, reliable , professional, prompt, and polite. We feel so fortunate to have him on our speed dial when an electrical issue arises."

"We had an excellent experience working with Core Electric. They helped with a large number of outlet and switch upgrades to our home which made a big cosmetic difference. Lee is very responsive, professional, and knowledgable. His team is both skilled and efficient and made it an easy process. Highly recommend!"

"Core Electric has done a great job for us, on a fairly complex remodel. Excellent communicators, responsive, and overall very enjoyable to work with. Very much recommended!"

"Lee was very responsive and professional. Was able to come over to install a ceiling fan for us in a short amount of time! Will be using Core Electric again in the future."

"These guys are true professionals. From first consult to end product Lee and team was super helpful, transparent and on top of it. Thorough bid, fair pricing, and quality workmanship. They helped us with a remodel project with some tricky breaker install and retrofitting old electrical and a full house new construction rough in, Hands down the easiest subcontractors we worked with. Both Seth and Lee are good dudes, know their craft and would highly recommend them to anyone. REAL montana contractors, with values."

"I worked with both Lee & Seth. I'm very happy with the services they provided. I will use them again & will tell everyone I know in Bozeman Core Electric is great!"

"Great communication and great service."

"Did great work quickly. Super friendly on top, these guys are great."

"Wonderful service, prompt, friendly, and very professional. Definitely a top notch company! Highly recommend!"

"Fast, efficient, very pleasant to deal with and clean!"

"Awesome!!!"

"Lee and Core Electric are amazing! Job was well priced and done efficiently and neatly!"

"Fast, knowledgeable and friendly. Would recommend! 👍"

"I live the communication between the co. and the client. Lee was on time, cleaned up after himself and the sconces are perfect. Highly recommend them!!"

"The scheduling team, the electrician (Lee) and his apprentice were all excellent to work with and very professional. I will use Core again."

"Excellent work!"

"I’ve worked with Lee and Core many times and can’t recommend his professionalism, communication, and high level of quality enough. A sub you want in you network."

"They were professional, thorough and on time."

"Fast, simple, reasonable."

"I can't say enough about Core Electric , Lee's work is extremely detailed and clean. He cares about the customers needs and is very passionate about his work. I would recommend him to any of my family or friends!"

"Lee did, and is still doing, such an amazing job on our current remodel. Lee is very easy to communicate with and takes the time to understand our needs as well as offering his professional opinion. His work is top quality as well as organized and tidy. Upon receiving my invoice from Lee the pricing was extremely reasonable especially concidering the high quality work we received. We have many more projects in our future and we can rest assured we have found our long term, "go-to" electrician. Don't hassle with anyone else. I know we will be sticking with Core Electric from now on."

"This company is remarkable. The time and attention they pay to their customers and detail is so refreshing. Lee is very caring and attentive and does his best to make sure my vision for my project comes to pass, all within my budget! I would one hundred percent recommend this company."

"Straight up the best in town. Grateful they helped with our remodel!! Seth is super detailed and takes pride in his work and Lee does as well and was extremely helpful and forward thinking throughout this project. These are the guys to call!"

"Lee is so knowledgeable and professional! We can’t say enough good things about the work he has done for us!! From ceiling fans to generators, he is the best!"

"Very professional and efficient"

"Very prompt and professional, I look forward to having them back!"

"Core Electric is affable, able, and available. Trustworthy crew who knows and owns their craft."

"Lee and Seth are so professional, knowledgeable and easy to work with. At Alpine Greenhouses our wiring projects require attention to detail on the control panel. Attached photo shows that it looks great!"

"We used a handyman to repair something and he tried to repair our lights…. So my advice is to NEVER use a handyman to fix your electric work. We had a contractor try to fix it as well and no one could figure it out. Wires were hanging out of the ceiling in the basement! Long story short, we had a major issue that could have been dangerous. Lee and Modie came in and figured it out for us in a jiffy and I couldn’t be more grateful for their expertise and professionalism."

"We were moving from out of state and Lee and crew were fantastic at making sure everything was ready for our arrival. Can’t recommend enough!"

"Lee and Seth were personable, informative, knowledgeable. We could not have asked for a better experience in working with them."

"Very professional and friendly. Fixed our issues quickly and explained what caused them. Really great service. Would highly recommend them to anyone."

"Core Electric helped us in a tough situation. It was a big project on short notice. They were responsive, communicative and professional. I would highly recommend them."

"Great work, timely service. Lee and crew are awesome!"

"A good company. Really professional."

"They came within an hour. The problem was solved within minutes of their arrival. Even so, they checked things out and gave advice. I will be happy to call Core again when I need them."

"Lee, the electrician that I worked with was great both with communication and scheduling. He did an excellent job with the install as well. I would highly recommend Core Electric to anyone who asked."

"Lee Gibson came and diagnosed and repaired an outdoor light sensor quickly and professionally."

"One of the best experiences I've ever had with a service call. Lee communicated well, did what was needed, and the bill was fair. Wouldn't hesitate to recommend these guys to anyboay, and will certainly call them in the future if needed."

"This is a great Company to deal with. I had a Tenant who was having some electrical issues, I was unable to get another Electrician out in a timely manner. Fortunately, Core Electric showed up within a half an hour, fixed the Outlet issues at a very fair price. They were extremely responsive and professional. Could not recommend them more."

"I replaced the batteries in my thermostat and could not get the cover back on so I called Core Electric this morning. Lee came to my house a few hours later and put the cover back on at no charge! Very responsive and quick to help me out."

"Lee and company are the best... highly recommend and will call them for all my electrical issues...thank you"

"Excellent service and quality work"

"Easy to work with and very knowledgeable electricians."

"I Had a great experience with Core Electric - prompt, friendly, great communication, and very fair pricing. Lee was my technician and he was awesome. I couldn’t be more satisfied with the service and I plan to use them for all my electrical needs in the future!"

"We use Core Electric for the majority of our service calls for my business. Lee is always prompt on answering the phone and getting to the properties to service them. He is honest and will tell you the best and most cost effective ways to complete the work on top of having very competitive rates!"

"Wired my shop and did a great job. Conduit and fixtures all look amazing. Were also very flexible with my indecisiveness. 10/10 recommend."

"Lee was very responsive to our phone calls and scheduled service within a short period of time. We are very pleased with the work he competed for us."

"Lee was very detail oriented and professional and took the time to do the job right. 5 Stars."

"Absolutely one of the best! Reasonably available, "on time", well prepared, efficient and very personable! HIGHLY Recommend!"

"Lee at Core Electric is wonderful! He is professional and great to work with!"

"Lee from Core Electric was excellent and extremely professional. I was very pleased by their willingness to take a smaller job when other companies in the area were rude and told me the job was too small. I hired Core Electric to install two new outlets on my patio. Lee explained several options and even tried to save me money by explaining the pros and cons to each option. The job was done in record time and without any issues."

"Lee was a joy to work with, good communication, professional and I would highly recommend to family and friends!"

"Very happy with Core Electric response and quality of work. Seth and Lee were easy to work with and gave me great confidence in their work installing my EV charger that had some difficult wire routing. Highly recommended!"

"Lee runs a great business and is thorough, professional and on time"

"Quickly contacted me back after I left an initial message. Communicated when running late. Friendly and professional."

"Core electric was responsive, punctual, friendly and extremely talented. Could not recommend him and his team more. Appreciate the help on our EV charger installation, Lee!"

"These guys were on it. Had Lee come out to begin with to install 220v in my garage, and then scheduled to have power panel installed at my workshop out back of the house about 100’ away. They were on time, courteous, and very friendly. I had a difficult time in trying to find someone that was interested in doing this work when the overall industry is overwhelmed at this time. However, they responded and did exactly what they said they would in a timely manner. Thank you Lee and crew!"

"Great company, willing to help us immediately. Good communication. Will use in the future!"

"The best service we have ever received! True professionalism and kindness along with first-rate service!! We will be only using them in the future!"

"Exceptional customer service. Communication is straight forward, they work quickly and efficiently and go the extra mile to help, even when the project presents challenges. Highly recommended!"

"Quick, efficient, professional, knowledgeable and won’t cut corners. Great company. Glad to have stumbled across them"

"Lee was very communicative though the process from bid to install, and delivered exactly what I was looking for in a timely manner. Thank you Lee and Core Electric!"

"Crew of two, Lee & Seth, installed 220v from breaker box to kitchen for new range. They were on time, fast, efficient, cared for doing a good job and importantly, both were friendly. They will be the first call if ever in need of electrical work again. Definitely recommend."

"On time and addressed every issue thoroughly. Very professional and left no mess. Would recommend without reservation"

"Five stars for Lee & Seth! They are complete professionals and they did a fabulous job. Very efficient, friendly, thorough and on time! Thank you!!"

"Lee was quick to return my call. Very prompt at fitting me into a gap he had and taking care of my repair."

"Very professional and timely with an estimate and then scheduling the job. I am very impressed!"

"Thanks Core. You rock!"

"We appreciated your quick response and thorough evaluation. Thank you."

"Seth and Lee were great to work with, our fixture mount on our porch is solid even in high winds. Thanks guys!!!"

"Core Electric, top notch service, highly recommended! Excellent experience from start to finish!"

"On time and successful repair of my backup generator."

"We had an unexpected power outage in our upstairs today and couldn’t figure out the cause. We called and Lee came out the same day, quickly diagnosed the issue, and got everything working again. He was professional, kind, and clearly very knowledgeable. He explained what was going on in a way we could understand and took care of the problem efficiently. We really appreciate the fast response and excellent service. Highly recommend!"

"Excellent and friendly service with a smile!"

"These guys were great! Lee was communicative and professional, fit me in in the same week, and was able to quickly diagnose and repair the issue that day. He was also upfront about cost, which I appreciated. Would highly recommend!"

"Lee is awesome. Went above and beyond to come after hours to fix my issue. Can’t recommend Core Electric enough!"

"◇ If you are looking for a company that represents true professionalism, precision, and integrity, I highly recommend CORE Electric. Lee and his team exceeded every expectation from start to finish. Lee installed my Generac generator system, and the quality of workmanship was absolutely outstanding. The entire process was seamless, organized, and handled with exceptional attention to detail. Communication was top-tier — I received prompt emails and text updates letting me know exactly when they were on their way, which speaks volumes about how professionally this company operates. What impressed me most was Lee’s knowledge, punctuality, and pride in his work. He took the time to do everything correctly, cleanly, and efficiently. Thanks to CORE Electric, my home is now fully prepared and self-sufficient whenever the power goes out, giving me tremendous peace of mind. In today’s world, it is rare to find a company that combines technical expertise with this level of customer service and professionalism. CORE Electric delivers exactly that. Outstanding experience from beginning to end. 💡"

"Exceptional service from Lee at Core Electric! He was professional, highly proficient, and great with follow-up. You can tell he truly cares about the quality of his work and his customers’ satisfaction. Highly recommend for anyone looking for a reliable electrician!"

"Lee went above and beyond yesterday making sure our home was safe, and electric was grounded. Not only was he extremely knowlegable, but he partnered incredibly well with all our inspectors at the property. I will specifically ask for Lee on other projects and highly recommend core electric."

"Prompt, courteous and thorough."

"Lee at Core Electric is exceptional. He did an amazing job from first contact, through job proficiency, to post-job follow-up. He was a pleasure to work with and his pride and professionalism in his work shows. Highly recommend Lee and his company!"

"I’ve worked with Lee for many years now as a handyman and sauna builder. From simple jobs to complex, high powered saunas, his work is always performed to the highest standard. Great communication, fair prices, detailed work, and top notch quality make Lee my go to electrician in the valley."

"Lee with Core Electric has been nothing but amazing to work with! I have hired him on numerous occasions and he always gets the job done even when others seem to not be able to. I highly recommend him to anyone who needs quality and trustworthy electrical work!"

"Lee was awesome. He provided good advice on how best to improve my shop lighting system from florescent to LED. I am very pleased with the result. I wont have issues with bulbs anymore and the new lights are more energy efficient."

"Excellent electrician experience. Lee is professional, fair and clearly knows what he’s doing. We’ve had him install new light fixtures, help trouble shoot electrical issues and install a new higher volt plug. Highly recommend."

"Core Electric did an excellent job for us. Communication, scheduling, quality, and pricing were all best in class. Their field guys were all excellent. Highly recommend them."

"I've worked with Core Electric for many years now, and service is always exceptional! I recommend Lee & his team for any electrical needs! :)"

"Highly recommend working with Lee. He helped me wire up a kiln for my home ceramic studio. Was very professional and did excellent work. Not only did he help with the electrical work but also helped me be more aware of some of the safety concerns and code that I should be aware of running a kiln at home."

"Wonderful service from beginning to end. A real person answered the phone promptly, they scheduled the work for the next day and were transparent about prices. They also provided us with a customer portal and texts for arrival, billing and ability to send photos of the issue. They arrived on time a d provided exceptional service. When they say they are customer-centric, they really are. We highly recommend Core Electric."

"Very professional, and clean work!"

"Lee was great to work with. He is knowledgeable, very nice, and explains things very well. Thank you!"

"Lee is fantastic! Responsive, prompt, professional and knowledgeable. Highly recommend!"

"Jeff was outstanding, this is the only electric service I will use in the future!"

"Lee responded to my call immediately and promptly followed up with an estimate. Jeff did the installation and was friendly and professional. I highly recommend Core Electric."

"Great Experience all around! From the ease of making an appointment and quick response time to Lee's excellent service and knowledge. Highly recommend."

"Clean work. Very prompt. Very professional."

"Lee & Core Electric did an amazing job on our project in a very timely manner and communicated very effectively. The project price was affordable and most importantly it looks fantastic! I would not hesitate to use them again for any additional projects or recommendations to our friends and family. Thanks again, Lee & Core Electric."

"Courteous, competent. Quick response. Lee was great to work with!"

"Super stoked that Lee came out and fixed all of the broken outlets. He was very prompt and professional! Absolutely 100% recommend Core Electric LLC for all of my future house calls, and electrical repair needs! Thanks again, Lee!"

"Very professional, courteous, And neat."

"Super responsive team and Lee came out on time and did a great, quick job on my garage heater."

"I had a great experience working with Core Electric and their electrician, Lee. I called them to repair electrical lines in my garage that were damaged during a construction project. Lee also installed a new outdoor outlet and light sconce near the side door from the garage to backyard. Lee was punctual, professional, and transparent throughout the entire process. He showed up on time for the initial quote, gave a fair and accurate estimate for both cost and time, and then returned a few days later to complete the work as promised. Everything was done exactly as discussed, and he left the space clean and tidy when he was finished. Communication was excellent the whole way through—timely, clear, and professional. I will absolutely be calling Core Electric and Lee again for any future electrical needs. Highly recommended!"

"Great crew, communicated well, solid work, fair price. Can recommend!"

"Pleasant, knowledgeable, efficient, and fair! Easy to schedule and easy to work with. Highly recommend!"

"Prompt, professional, polite and efficient! Would definitely recommend to anyone and use for any future services. Excellent."

"Very professional, efficient, they keeps a clean space and are well mannered. Absolutely will hire again."

"Lee arrived on time and set to work firing up our Generac generator for the first time. He explained everything about the generator clearly and professionally, answering all our questions patiently and respectfully. We are glad there is a certified Generac repair/maintenance person so close-by (in Belgrade)."

"Core Electric stands out as a trusted pillar in our community, delivering exceptional workmanship with honesty, transparency, and pride. Lee and his team is known for completing projects on time without compromising quality, offering fair and dependable pricing that reflects genuine integrity. Beyond their outstanding service, Core Electric consistently gives back to the community they serve—supporting local initiatives, uplifting neighbors, and proving that their commitment extends far beyond the job site. When you choose Core Electric, you’re choosing reliability, craftsmanship, and a company truly invested in the heart of our community."

"We called Lee & Core Electric to take over the annual service on our generator. He handles all communication related to this service himself including notification of departure from Bozeman and estimated arrival at our Madison Valley home. He thoroughly explained what the service entailed and has promised to follow up with a full review of the service with his invoice. He's a very personable guy and very professional in his work. We highly recommend he and Core Electric if you need generator service and other electrical work."

"A reputable family-owned company delivering outstanding craftsmanship and dependable knowledge."

"Lee is great -- professional, friendly, and fair. He was on-time and communicative. I will definitely call Core again when I need electrical work."

"Excellent work! Clean, neat, precise, polite, kind, knowledgeable,"

"very thorough!!!"

"Best residential electrician in Bozeman. Hands down."

"Lee Took care of the issue promptly"

"Professional, good communication, completed work as expected."

"Outstanding service. Diagnosed a difficult problem well. Lee is committed to excellent work."

"Great professional service and very reasonable pricing."

"Amazing Service!"

"Lee is always fantastic. Prices are fair and the service and communication are top notch. We’ve had them do several things at our house, and they always show up when they say they’re going to show up."

"Great,professional job"

"Reliable, prompt, good communication. 👍"

"Wonderful to work with a business with integrity. Lee is a total professional. Highly recommended."

"Responsive, punctual, communicative, high quality. We will definitely call Core Electric again!"

"Lee and Seth have been outstanding with which to work for the past year. We've used them on many electrical projects at the house including a back up generator installation, home automation, adding a 220v plug for a new freezer, etc. They have been excellent from start to finish."

"I am so glad I found Core Electric and I highly recommend Core Electric to anyone looking for an electrician."

"Lee and Seth were absolutely wonderful! It’s been challenging to find craftsman in the valley that are willing to take the time to drive out to Gateway, let alone the 191. They did a phenomenal job replacing electrical outlets, installing a fan and just doing general maintenance on our electrical panel to make sure everything was up to date for the arrival of our daughter in a few weeks. Needless to say, we will not be using another electrical company other than Core Electric. Thank you guys so much for treating our home so well."

"Always responsive and attentive. Great service! Highly recommend."

"Outstanding Service Every Time! We've called Core Electric several times now, and they continue to impress us with their speed, professionalism, and fair pricing. They are friendly, knowledgeable, and quick. Highly recommend!"

"Really professional, got out to quote quick, great job on installation. Very easy to work with the team at Core."

"Lee responded quickly with a quote. He showed up on time as scheduled and did quality work with quality materials. Highly recommended."

"Jeff was great to work with and was very efficient and knowledgeable."

"Lee from Core Electric was response and quick to fix our problem. With reasonable pricing too!"

"Lee at Core Electric was very responsive, honest and his workmanship was excellent. They installed a new dining light and added an outlet in our garage. Thanks for helping us out Lee! I'd highly recommend Core Electric!"

"Professional, timely and expectations met!!"

"Super friendly and professional. They provided a quote ahead of time and arrived exactly when they said they would. Couldn't recommend more!"

"Lee was super responsive and easy to work with. Showed up right on schedule and fixed my electrical problem quickly. I would not hesitate to call him again for my own needs or recommend him to others."

"Core Electric does excellent work. They've helped us with three projects as we've remodeled our old, unique home. Lee is personable and knowledgeable. He responds quickly and gets the work done on time. We’re lucky we found Core!"

"I highly recommend Core Electric. Lee and Jeff were very courteous, helpful and efficient. Jeff took care of my immediate issues and helped me come up with a game plan for the next stage of updates."

"Very professional!!"

"Excellent workmanship, very professional, highly recommended, Thank you Jeff and Lee!"

"Awesome company! Prompt response, and they do great work. Worked with Lee, and he is exceptional."

"Lee was professional, efficient and knowledgeable."

"Great experience. Would highly recommend this company. Very reliable and skilled professionals."

"Met with Lee to review the scope of the project. I had the quote the next morning. Lee and I agreed on a date. I received text update when Lee and Jeff were on their way. We made some adjustments along the way but all went smoothly. Lee and Jeff are professional, knowledgeable, and craftsmen that do clean installs. Also a pleasure to work with."

"Lee has been incredibly helpful in getting our electrical needs and went above and beyond more than once. Will happily continue to work with Core Electric in the future."

"Core electric runs old school Bozeman vibes with a modern twist. Super friendly, very helpful, and knowledgeable (very good at explaining everything). Couldn’t ask for a better LOCAL electrician!"

"Quick and great work"

"Lee at Core Electric is wonderful! He is professional and great to work with!"

"Prompt, friendly, and knowledgeable service."

"Awesome work, knowledgeable, efficient and great to work with. Highly recommend Core Electric!"

"Lee and Jeff were professional and their work was outstanding! Super clean extremely well installed more than satisfied!"

"Very professional and does expert work at a reasonable price.2"

"Professional, always on time and completed all jobs with an attention to detail. Would definitely recommend!"

"They got the job done efficiently and had excellent communication. Would highly recommend."

"Lee just provided routine servicing for my Generac generator, probably the equivalent of 50K servicing for a car. He was very friendly, conscientious, happy to answer all of my pesky questions about the generator, and most importantly, clearly skilled and experienced providing such service. I am now on his annual maintenance program."

"I shot Core an email about a previous job and Lee was at my house in less than an hour. Amazing. Highly recommended."

"Quick, easy, and efficient! Lee was able to diagnose and replace what was needed with professionalism and even explained to me what to expect in the future."

"Great quality/ super fast service/ dependable!!!!"

"Very professional, super kind and efficient. I was freaking out about how to fix this and in less than 20 minutes Lee had completely resolved the situation."

"Lee was recommended by a neighbor. He was responsive, arrived on time and presented good options. Then he completed the work and cleaned up afterward. A great experience."

"You're just not gonna find a better electrician than Lee. Very responsive, kind and honest. Our family has our electrician for life! Thanks Lee"

"Actually showed up early. Very polite, professional and efficient. Solved and corrected my problem. Highly recommend Core Electric."

"Excellent! Lee was personable and professional and took care of the problem efficiently. I am very pleased."

"Core Electric is fantastic - I cannot recommend them highly enough! Lee was so responsive to my initial inquiry and came out quickly to provide an estimate which was very competitive. He was communicative and patient as we figured out our timing which we really appreciated. He came out today with Jeff to do a portion of our project, and wow, such quality work and attention to detail. They even cleaned up. They are both kind, honest guys - so grateful to have found this excellent company!"

"Lee was fantastic. Communicative and extremely knowledgeable, he explains the installation very clearly every time and does it efficiently. We’re very happy with the service we received and don’t want any other electrician. Highly, highly recommend - unless it conflicts with our appointments. ;)"

"We appreciate Jeff being able to come out quickly on the day after Christmas and give us the information that we needed, so that we can go onto the next step of getting our issue resolved. We have used this company twice now and both times have been exceptional service experiences. We highly recommend them."

"Lee the owner of Core Electric is such an honest and genuine person. The work they do is immaculate and always done quickly compared to so many contractors these days. I'd hire him and his to do everything around my property if I could. Seriously give Core electric a call for anyand ALL your work you need done. You won't be disappointed! I stand by that 100%."

"Lee was great to work with. Very responsive, timely, and did a great job. Highly recommend."