Dependable Electrical Maintenance for Hospitals & Medical Facilities in Houston,TX
NFPA 99-Compliant Service from a Family-Owned Electrical Contractor Since 1990Colwell Electric delivers high-reliability electrical services for hospitals, surgery centers, and medical offices throughout Greater Houston. With deep experience in critical systems and Joint Commission compliance, we design, install, and maintain power infrastructure built to support patient safety, uninterrupted care, and long-term performance.
Our electricians handle the full lifecycle of healthcare electrical systems—from emergency generator setups and OR isolation panels to infrared scanning, power distribution upgrades, and emergency response.
We go where the job takes us, even if it means boating to a hospital during a flood or sleeping on-site during a storm. We’re problem-solvers, not checkbox contractors, and we don’t stop until the work is done right.
Additional Services

What Does it Mean to Be NFPA 99-Compliant?
NFPA 99 sets the national safety standards for electrical systems in hospitals and medical facilities. Compliant means ensuring all electrical infrastructure supports patient safety, minimizes risk, and meets healthcare-specific codes. Key components of NFPA 99 compliance include:
Colwell Electric follows these guidelines on every medical project, ensuring your facility meets compliance and stays prepared for inspections.
Other Commercial Electrical Services
Colwell Electric delivers forward-thinking electrical solutions built to support growth, resilience, and code compliance. Our commercial services help Houston businesses scale safely while integrating new technologies and energy demands. From capacity planning and smart system integration to backup power and electrification, we’re the trusted partner for projects that demand precision and long-term reliability.
Houston’s Top Facility Electricians
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.”
Hospital Electrical Services FAQs
Electrical safety in hospitals isn’t optional—it’s life-critical. Colwell Electric works with Houston-area healthcare facilities to maintain NFPA 99 compliance, minimize risk, and prepare for The Joint Commission audits. Below are answers to the most commonly searched questions about hospital electrical systems, inspections, and safety protocols.
Most hospitals require annual electrical inspections at a minimum, including infrared thermographic scanning, breaker testing, and isolation panel assessments. NFPA 99 outlines key standards, and The Joint Commission mandates regular documentation for life safety and environment-of-care compliance. Older facilities or those with heavier electrical loads may need more frequent inspections to ensure continuous reliability.
Colwell Electric tailors maintenance schedules to each facility’s infrastructure, patient care areas, and accreditation goals. We’ll map out your annual inspection calendar, coordinate with certified third parties when needed, and provide all necessary reports to pass state and federal audits without delays.
Isolation power panels play a critical role in operating rooms by preventing ground faults that could harm patients during surgery. Colwell Electric installs, maintains, and coordinates third-party certification for isolation panels to meet code.
- Required Testing: Annual impedance checks and alarm function verification
- Certified Partners: We coordinate with licensed testers for required audits
- Safe Design: Panels reduce the risk of electrical shock during invasive procedures
Required by NFPA 99, these systems ensure line isolation, reduce leakage current, and continuously monitor for faults.
Electrical work in hospitals requires extreme care and planning. Our team works directly with hospital leadership and department managers to schedule around patient care, operating room hours, and critical system use. We follow detailed infection control protocols to ensure that work areas remain sterile and compliant throughout the project.
If a shutdown is unavoidable, Colwell Electric provides temporary power solutions to ensure that essential systems—such as ventilators, monitors, or life support—remain powered. We also take extra steps, including isolating work zones, using HEPA equipment when necessary, and updating staff in real-time to avoid disruptions. Patient safety comes first—always.
Certain hospital systems must remain operational under all conditions. These include:
- Emergency backup systems: Generators, ATS units, and battery backups
- OR Isolation Panels: For safe, grounded surgical operations
- Critical Branch Panels: Supporting ICU, life-support, and emergency systems
- Surge Suppression Systems: Protecting imaging, MRI, and lab equipment
- Lighting & Egress: Ensuring safe evacuation during outages
Colwell Electric evaluates and upgrades hospital systems to meet NFPA 99 and NEC standards while supporting safe, scalable infrastructure growth.
Yes, and we make the process smoother for your facilities team. Our electricians conduct code-based inspections, test all life safety systems, and provide detailed documentation to prepare for Joint Commission and AHCA evaluations. From isolation panel logs to generator test records, we ensure nothing falls through the cracks.
In addition to the inspection support, Colwell Electric helps identify at-risk systems that may raise flags during review. By proactively addressing them, we reduce audit stress and help your facility maintain a high standard of care without surprise deficiencies.
Explore More Healthcare Maintenance Tips on Our Blog
From new NFPA 99 updates to facility checklists and Joint Commission prep tips, our blog is built for hospital engineers, administrators, and compliance teams.
Contact Colwell Electric for Medical Facility Electrical Services in Houston
Whether you’re retrofitting an OR or building a new wing, Colwell Electric brings over 30 years of hospital experience to your project. We work to the highest medical standards, support emergency response, and deliver work you can trust when lives depend on it.
From isolation panels to emergency generators, we do what it takes to keep your power safe and compliant. Contact us to schedule a site visit or request emergency support.


