Licensed Heating Technicians — Central & South Texas
Heating Services That Keep Your Family Warm
When temperatures drop in Central Texas, you need a heating system you can count on. Diamond Double J repairs, installs, and maintains furnaces and heat pumps with the same honest, experienced service homeowners have trusted us for over 30 years.
Our Approach
Fast, Honest Heating Repair & Installation
Texas winters may be short, but a broken heater is never convenient — and it can be dangerous. Our licensed technicians diagnose heating problems quickly, explain your options clearly, and fix it right the first time. Whether you need a same-day repair or a full system replacement, we show up on time and get the job done.
Heating Repair & Diagnostics
System blowing cold air, short-cycling, or not turning on at all? We pinpoint the problem fast and fix it right — no guesswork, no unnecessary parts, no runaround.
- Furnace & heat pump diagnostics
- Igniter, burner & heat exchanger repair
- Blower motor & belt service
- Thermostat troubleshooting & replacement
- Reversing valve & refrigerant service
- All major brands serviced
Heating Installation & Replacement
Ready to replace an aging system? We help you choose the right furnace or heat pump for your home's size and your budget, then install it properly so it runs efficiently for years to come.
- Free system sizing & recommendations
- Gas furnace & electric furnace installation
- Heat pump installation & replacement
- Ductwork inspection & sealing
- Smart thermostat setup & programming
- Post-install performance testing
Why Homeowners Trust Diamond Double J for Heating
Upfront Pricing
We quote before we start. No surprise charges when the job is done.
30+ Years Experience
We've serviced every brand and heating system type in the region.
Licensed & Insured
License No. TACLA146241C. All work is fully covered.
24/7 Emergency Service
Heating failures don't wait for business hours — neither do we.
Heating Brands We Install & Service
Need Heating Service Today?
Call or text us — we serve Adkins, La Vernia, Converse, St. Hedwig & surrounding areas.