Commercial HVAC & Mechanical · Greater Houston
24/7 Emergency Service: (832) 352-9995
Houston Commercial HVAC Contractor
Keeping Houston's buildings cool, comfortable and running.
Design, installation, maintenance and repair of commercial HVAC and mechanical systems — for property managers, facility teams and general contractors who need it done right the first time.
Since 2007
Serving Houston businesses
24/7
Emergency response
TACLA
License #[LICENSE NUMBER]
Licensed
& fully insured
What We Do
Full-service commercial mechanical
Preventive Maintenance
Scheduled maintenance agreements that catch problems early and extend equipment life.
Repair & Emergency Service
Fast diagnosis and repair on all major commercial brands, day or night.
Installation & Replacement
Rooftop units, split systems, chillers and boilers — sized, installed and commissioned.
Why Relm
One mechanical partner for the life of your building.
Decades of hands-on experience
Founded in 2007 and led by an owner who has been in the industry since 1996.
Commercial-only focus
We work on offices, schools, healthcare, retail and industrial facilities — not houses.
Straight answers, written quotes
Clear scopes and pricing before work starts, with documentation after.
Built for Houston heat
Systems designed and serviced for Gulf Coast humidity and long cooling seasons.
Recent Work
On the roof and in the plant room
Industries Served
Facilities we keep running
Office & Commercial
Healthcare
Education
Retail & Restaurants
Industrial & Warehouse
Multifamily
Need service or a project quote?
Call our team or send a request — we'll get back to you within one business day.