Honest HVAC from
your neighbor.
Family-owned heating and cooling in Harker Heights, TX. You deal directly with the owner — no salesmen, no markups, just fair local pricing.
Book Service
Request a convenient appointment for repairs, maintenance, or a replacement estimate.
Book NowFree Replacement Estimate
No-cost estimates on new system replacements. Local pricing, honest recommendations.
Get EstimateWhy homeowners choose us
Owner as Your Tech
You deal directly with Jason Kayser — your contractor and technician. No salesman, no commission pressure.
Local Pricing
Competitive market pricing for the towns we serve. We don't bring Austin prices to our local communities.
Licensed & Insured
Licensed in the State of Texas and fully insured for projects large or small.
Factory Trained
Our team receives manufacturer training from Goodman, Amana, Daikin, and Day & Night.
Residential & Commercial HVAC
Full-service heating, cooling, and indoor air quality for homes and businesses in Central Texas.
AC Repair
Fast diagnostics and repair for all brands and models.
AC Installation / Replacement
New systems sized right for your home and budget.
Heating / Furnace Repair
Reliable heat when you need it most.
Heating Installation
Furnace and heat pump installs built for Texas winters.
Preventive Maintenance / Tune-Ups
Keep your system efficient and catch issues early.
Mini-Splits
Ductless solutions for additions, garages, and targeted comfort.
Heat Pumps
Year-round heating and cooling from one efficient system.
Thermostats
Smart and programmable thermostat installation and setup.
Indoor Air Quality
Cleaner, healthier air for your family or employees.
Ductwork
Repairs, modifications, and airflow improvements.
Refrigeration
Commercial refrigeration service and repair.
Commercial HVAC
Rooftop units, split systems, and packaged units.
Our crew, in the field
Real technicians, real installs. Every call is handled by our own licensed team — no subcontractors.
About Kayser Heating & Air
Kayser Heating & Air is a family-owned HVAC company founded by Jason Kayser in 2009. Born and raised in the Killeen area and a resident since 1981, Jason learned the trade at a local community college before leading the HVAC team at a local hospital.
While working as the hospital's lead HVAC technician, Jason began serving neighbors on weeknights and weekends. The customer base grew so much that he made the decision to serve the public full-time — and Kayser Heating & Air was born.
With 27 years of HVAC experience, Jason still works directly with customers as the contractor and technician. No salesmen, no inflated margins — just fair pricing, outstanding work ethic, and a commitment to excellence.
27
Years Experience
2009
Founded
Family
Owned & Operated
TX
Licensed & Insured
Contact Information
Service Line
254-290-3784Business Hours
Monday – Friday: 8:00 AM – 5:00 PM Central US Time
Weekend service available by appointment
Based In
Harker Heights, Texas
Serving Bell & Coryell Counties
Warranty
1-year workmanship on new installations and replacements. 5-year manufacturer warranty, extendable to 10 years with online registration within 60 days.
Proud Partners in Quality Equipment
We install Goodman, Amana, Daikin, and Day & Night equipment. We also service all brands. Explore our featured partners below.
Service Areas
We may also serve surrounding communities in Bell and Coryell counties. Call us to confirm coverage.
Common Inquiries
Schedule Service
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