Structured cabling and low-voltage installation in Houston
Cablify installs network cabling, fiber, security cameras, access control and Wi-Fi for offices, hospitals, plants and warehouses across Greater Houston, from Downtown to The Woodlands, Katy, Sugar Land and the Ship Channel.
Areas we cover
- Houston
- The Woodlands
- Sugar Land
- Katy
- Pearland
- Pasadena
- Spring
- Cypress
- Baytown
- League City
- Conroe
- Humble
Plan for water and outages
Tropical Storm Allison put about 10 million gallons of water into one Texas Medical Center basement in 2001. Hurricane Harvey dropped about a trillion gallons on Harris County in 2017, and Hurricane Beryl cut power to more than 2.2 million CenterPoint customers in 2024.
Network rooms, recorders and door controllers belong where the water and the outage cannot reach them.
Equipment above the flood line
Houston requires new buildings in the 500-year floodplain to sit at least 2 feet above it, and unincorporated Harris County puts electrical equipment at least 24 inches above the 500-year elevation. We place MDFs, IDFs and recorders on upper floors or raised areas wherever the building allows.
Runtime that matches the outage
We size UPS runtime with you for switches, cameras and door controllers, and plan generator connections where the building has them.
Sealed pathways
Exterior conduits and building entries are sealed so storm water does not follow the cable into the building.
Where the work is
Houston spreads its offices, hospitals and plants across a wide metro. Industrial demand is strong: Cushman & Wakefield recorded 7.3 million square feet of net absorption in the third quarter of 2026, the best quarter since 2022.
Downtown and Uptown
Office towers Downtown and about 28 million square feet of office space around the Galleria, mostly tenant fit-outs and upgrades.
Energy Corridor and Westchase
About 24.7 million square feet of mostly Class A offices along I-10, home to BP, ConocoPhillips and Shell, plus more than 18 million in Westchase.
Texas Medical Center
The largest medical complex in the world, with about 54 million square feet and more than 120,000 employees. Hospital work follows infection control and patient-area schedules.
The Woodlands
Corporate campuses north of the city, including the Chevron Phillips Chemical headquarters that opened in 2025.
Port Houston and the Ship Channel
The nation’s largest petrochemical complex. Work in classified hazardous areas uses sealed conduit or intrinsically safe circuits, scoped with the site’s engineers.
Warehouse corridors
New distribution buildings across the metro that need fiber to IDF cabinets, Wi-Fi over racking and cameras at every dock door.
Permits in Houston and Harris County
Inside city limits, Houston’s electrical code exempts communications, sound and burglar alarm wiring under 50 volts from electrical permits, except where it connects to the power source. The city has no separate low-voltage contractor registration.
Fire alarm wiring is the exception. It needs a City of Houston permit pulled under a master electrician’s license, and building owners hold their own annual alarm permit with the city.
In unincorporated Harris County, electronic locking systems in commercial buildings need a county permit, and the locks must release on fire alarm, sprinkler flow, a manual pull station or power loss.
State licensing is the same across Texas. See the Texas licensing table on our Dallas-Fort Worth page.
Heat is part of the spec. Bush Intercontinental averages about 111 days a year at or above 90°F, and hit a record 109°F in August 2023. Outdoor cameras and enclosures are chosen for that heat, and equipment in unconditioned spaces gets ventilated or cooled cabinets.
Common questions
Do you work in the Texas Medical Center?
Yes. Hospital and clinic work follows the facility’s infection control, patient-area and scheduling rules, and we work with the facility’s IT and engineering teams on access.
Can you work at plants along the Ship Channel?
We install cabling in offices, control rooms and warehouses at industrial sites. Work in classified hazardous areas is scoped with the site’s engineers to the wiring methods those areas require.
What happens to cameras and doors in a power outage?
That depends on the backup we design with you. We size UPS units for the switches, cameras and door controllers, and decide with you whether each door fails locked or unlocked.
Do you cover The Woodlands, Katy and Sugar Land?
Yes. Our Houston market covers the whole metro area, including The Woodlands, Spring, Cypress, Katy, Sugar Land, Pearland, Pasadena and Baytown.
Request a quote in Houston
Send the address, building type and what you need installed. Tell us if the site is in a floodplain or a classified area.