Cool houses.
Calm homeowners.
That's the job.
Certech is a locally owned HVAC crew serving Houston and the surrounding suburbs — straightforward pricing, same-day repairs, and technicians who actually explain what's wrong.
Build your quote from home — no phone call needed.
No sales visit needed to get started. Share the details of your home and system from home, and a Certech estimator builds your personalized quote from them.
A first for Houston HVAC
What would your new AC system cost?
With CoolQuote, you can explore your HVAC replacement options, provide information about your home, and build your system step-by-step to get a personalized estimate.
Full-service heating & cooling, handled by one crew
No subcontractors, no guesswork. From a rattling unit to a full system replacement, we cover it — residential and commercial.
Emergency repair
Unit down in a Houston August? Call us and we'll get a technician out to diagnose and fix it fast.
Installation & system upgrades
Right-sized AC and furnace installs, matched to your home's square footage and ductwork.
Maintenance & filter replacement
Seasonal tune-ups and filter swaps that catch small issues before they become big ones.
Indoor air quality testing
Air quality testing, filtration, and humidity control for Houston's thick, muggy air.
Duct cleaning
Cleaning and inspection for uneven rooms, high bills, and dusty vents.
Thermostat & heat pump service
Thermostat installation and heat pump service, repair, and replacement.
From "it's not cooling" to fixed, in four steps
Call or book online
Tell us what's going on. We'll ask a few questions and give you an honest first read.
We diagnose on-site
A technician inspects the system and walks you through exactly what's wrong.
Upfront, flat-rate quote
You approve the price before any work starts — no surprise line items later.
Repair & follow-up
Most jobs finish same-visit. We check back in to make sure it's holding up.
Straight talk, fair pricing, techs who show up on time
Flat-rate pricing, always quoted first
You'll know the cost before we touch your system — no hourly surprises.
Local, background-checked technicians
Our crew lives in the Houston area — not a rotating contractor pool.
Built for Gulf Coast humidity
We size and set up systems for Houston's heat and moisture, not a generic climate.
1-year workmanship guarantee
If a repair doesn't hold, we come back and make it right at no charge.
See what customers are saying on Google
Rather than write our own testimonials, we'd rather send you straight to the real thing — verified reviews from actual customers on our Google Business Profile.
Flexible ways to pay for repairs or a new system
We partner with a third-party lender so a broken system doesn't have to mean an all-at-once expense.
12-month promo financing
Best for repairs and tune-ups. Pay it off within 12 months and owe no interest at all.
Extended payment plans
Terms up to 60 months for full system installs, so a new unit fits into a normal monthly budget.
Instant, soft-check approval
See what you qualify for with a soft credit check that won't affect your credit score — no obligation to proceed.
Estimate your monthly payment
Drag the slider to your project's approximate cost and pick a term to see a sample payment.
Sample terms shown for illustration only and are not a guarantee of credit approval, rate, or payment amount. Actual APR, term, and monthly payment are determined by our lending partner based on creditworthiness. Subject to credit approval.
Proudly serving Houston and the surrounding suburbs
If you're inside the loop or out toward the suburbs, there's a good chance we're already working in your neighborhood this week.
Map data © OpenStreetMap contributors
Tell us what's going on
Fill this out and we'll call you back within a couple hours during business hours — or call the emergency line anytime.