Houston’s No. 1 Electrical Contractor for Over 30 Years
Since 1990, Colwell Electric has provided high-quality commercial and industrial electrical services across Houston and surrounding areas. Our roots run deep—three generations of the Colwell family have worked in the trade, and that continuity shapes everything we do. We hold ourselves to higher standards because we take pride in our name and the work we leave behind.
Our technicians are qualified and trusted. Many have dedicated their careers to automatic transfer switches, making them experts in a field few truly understand. We maintain strict safety practices, ongoing training, and low turnover, so you always know who’s showing up and what they stand for. That consistency means fewer delays, smoother projects, and peace of mind on every job.
We’re proud members of the Better Business Bureau and the Houston Chamber of Commerce. Our clients count on us not just for electrical support, but for a level of honesty, professionalism, and follow-through that’s getting harder to find.
Uniquely Qualified in Transfer Switch Services
We’re one of Houston’s only electrical contractors with 50+ combined years of GE Zenith Controls experience. From field repairs to custom retrofits, we handle it all.
Master Electricians. Reliable Results.
Our team includes seven master electricians who hold decades of hands-on experience. We apply that skill to every project, guaranteeing safety, compliance, and long-term performance.
Our Affiliates
A Legacy of Houston Electrical Services Built on Family, Trust & Craftsmanship
What began as a small, family-run shop in 1990 has grown into one of Houston’s most trusted electrical service providers for commercial and industrial clients. Colwell Electric is now three generations strong, with each generation adding to the standards of precision, reliability, and care that define our work today.
Our reputation is built on more than just longevity—it’s built on specialization. For decades, we’ve supported residences and facilities that rely on automatic transfer switches and complex power systems, often stepping in where few others know how to troubleshoot or retrofit. Our team stays consistent because our culture values safety, accountability, and pride in a job well done. That stability shows in every project we touch.
As active members of the Houston Chamber of Commerce and the BBB, good work speaks for itself. And in a trade where trust is earned, we’re proud of how many clients continue to call us first, year after year.
Learn Why We’re the Best Electricians in Houston
Very professional, quality work.
“No other company came close to the cost I was quoted from Colwell Electric. A family-owned business that I highly recommend.”
Kind and responsive service.
“10/10 we loved working with Mike and his team. Mike was always so responsive and I love how creative he is when it came to redoing our electric and making it still aesthetically pleasing. Can’t recommend these guys enough!”
Quick, efficient, and thorough!
“Our Ting sensor kept sending multiple warnings. After two other electricians and the power company came to check it out, nothing was found. Trent from Colwell Electric diagnosed and found the problem. Repaired it and we’ve had no other issues!”
What a great service you offer!!!
“As Realtors, we are always looking to add value to our clients. I’m excited about the new product Colwell is offering to monitor the electric connections in my home. I have worried about shorts…..not anymore.”
Quality and quick service!
“They were always on time. Prices were competitive. Cleaned up afterwards. I will use them again.”
Team was excellent!
“I contacted Colwell Electric because lightning struck my home and damaged quite a few outlets and light fixtures. Mike D. took great care of me. He was helpful and answered all my questions. I am very pleased with their work and professionalism.”
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Colwell Electric FAQs
Colwell Electric offers a complete range of commercial and residential electrical services throughout Houston and the surrounding region. Our work covers everything from new equipment installations and electrical troubleshooting to retrofit upgrades and long-term maintenance. We are particularly known for our expertise in automatic transfer switch (ATS) repair and controller replacement, with specialized experience in GE Zenith systems.
Whether you’re planning a facility expansion, dealing with aging infrastructure, or need code-compliant design-build solutions, we bring both the manpower and technical depth to handle it.
With a team that includes seven master electricians and factory-trained ATS technicians, we support everything from small-scale repairs to high-stakes power system projects.
We work with a broad range of clients across Houston, including homeowners, contractors, property managers, and facility directors in sectors like healthcare, manufacturing, and education. Residential projects often involve panel upgrades, lighting, surge protection, and smart home systems, while commercial clients rely on us for design-build projects, tenant improvements, and ongoing facility maintenance.
We’re also highly experienced with critical infrastructure such as hospitals and industrial sites where transfer switches and backup systems are vital. From routine service calls to complex power system installs, we’re trusted for our precision, consistency, and clear communication.
Colwell Electric’s technicians bring over 77 years of combined experience to the job, and several have dedicated their careers specifically to automatic transfer switch work. Many of our team members have been factory-trained by GE Zenith and work closely with their paralleling switchgear support staff on complex service cases.
In addition to our seasoned ATS specialists, we employ seven master electricians who oversee safety, code compliance, and quality assurance across every project. As a GE Zenith-approved service center for more than 25 years, we’re one of the few contractors in Houston with this level of specialization and manufacturer partnership.
Yes. Colwell Electric provides fast-response emergency electrical services for commercial and industrial clients across the Houston area.
- Rapid Dispatch: We’ll send a trained technician to your facility as soon as possible
- Critical Repair Support: We resolve outages, ATS failures, overloads, and electrical system faults
- Prepared & Stocked: Our trucks arrive equipped with the parts and tools needed for most emergency scenarios
Whether your power system is down or an essential transfer switch has failed, our technicians are available to restore operations safely and efficiently.
Colwell Electric has been family-owned and operated since 1990, and that legacy shows in everything we do. We solve critical infrastructure problems for Houston’s commercial and industrial sectors with professionalism, consistency, and real technical expertise.
Our team includes multiple GE Zenith specialists, master electricians, and experienced field techs who approach every job with care and precision. We’re a long-standing GE Zenith Factory Service Center, a member of the Houston Chamber of Commerce, and a company that’s earned repeat business by doing things right, not rushing through them.
If you want a contractor who shows up, takes ownership, and gets the job done right the first time, Colwell Electric is the partner you need.
Contact Colwell Electric for Service You Can Trust
We’re here when it counts. Whether you need an emergency electrical contractor, help retrofitting an aging ATS, or a master electrician for your facility, Colwell Electric delivers fast, professional results that keep your business running.
Let’s make your next project seamless.