Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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AfterHVAC Company in Keller, TX
Most HVAC calls we get in Keller involve dual-zone systems in large two-story brick homes built during the 1990s and 2000s housing boom, where equipment is now hitting 20-25 years of age. The combination of aging R-22 refrigerant systems, expansive black-clay soil, and summers that stay above 100°F for weeks means repairs here are often more complex than in newer or smaller markets. Coldharbour Heating & Air dispatches technicians from our Dallas-Fort Worth office to serve Keller directly, and we’re reachable at (817) 402-2972 any hour, any day.
Why Keller Homes Are Different
Keller’s residential build-out peaked between roughly 1993 and 2008, and the homes from that era share a profile we don’t see in older Tarrant County suburbs. These are large houses, typically 3,000 to 5,000 square feet, almost all two-story brick on slab foundations, and nearly every one runs a dual-zone setup with an attic-mounted air handler for the upper floor and a closet or utility-room unit for the lower.
That sheer square footage and dual-system standard means the average repair or replacement scope in Keller runs larger than in closer-in suburbs. The original equipment was charged with R-22 refrigerant, which is no longer manufactured and increasingly hard to source. When a compressor fails on a 20-year-old system, repair versus replace becomes a real calculation.
Then there’s the soil. North Tarrant County sits on expansive black-clay gumbo that swells in wet seasons and shrinks in dry ones. Two decades of that movement cracks flex-duct connections at plenums and shifts attic air-handler platforms. We’ve found upstairs supply plenums in Bloomfield and along Keller-Smithfield Road that have separated enough to dump 30% of conditioned air into the attic, even though the equipment itself tests fine on gauges. The homeowner’s complaint is always the same: “The upstairs is always hot,” and prior tune-ups never caught it because the problem isn’t the unit, it’s the connection.
Summers here push 100°F-plus for weeks at a stretch, which means both zones are running hard simultaneously. That load pattern accelerates wear and makes same-day response genuinely important when a system fails in July or August.
Our Main Keller Services
Keller homeowners call us most often for cooling repairs in peak summer, heating repairs during the short but sharp winter cold snaps, and full system replacements as dual-zone R-22 equipment ages out. Each service has its own dedicated Keller page with deeper detail.
AC Repair in Keller
AC repair in Keller usually means working on dual-zone systems under heavy summer load. We see a lot of refrigerant leaks in aging R-22 lines, failed capacitors on outdoor condensers, and the hidden flex-duct separation that makes an upstairs zone feel broken when the equipment isn’t. Our technicians carry capacitors, contactors, and refrigerant for the major brands, and we issue a written 365-Day Done Right Promise on every repair. AC Repair in Keller covers common failure modes, pricing, and what to expect when you call.
Furnace Repair in Keller
Keller’s gas furnaces see less annual runtime than the AC, but when a cold front drops temperatures fast, a no-heat call is urgent. We handle igniter failures, flame-sensor cleaning, heat-exchanger inspections, and control-board replacements on attic and closet units alike. Because many Keller furnaces are paired with aging coils and blowers shared by the cooling system, we always check the whole assembly rather than just the heat source. Furnace Repair in Keller explains our process and typical repair costs.
AC Installation in Keller
AC installation in Keller almost always means replacing two systems at once, given the dual-zone standard in local homes. We size each zone separately with a full load calculation, specify equipment that qualifies for available rebates, and handle the rebate paperwork. New systems use R-410A or newer refrigerants, and we coordinate pad leveling, plenum resealing, and duct repair to address the slab-movement issues common here. AC Installation in Keller walks through timing, pricing, and what the install day looks like.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Keller
Our technicians are trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, igniters, and flame sensors for our brands on our Keller-area trucks, which means most repairs that don’t require a full part order are completed in a single visit.
Pricing for HVAC Company in Keller, TX
| Service | Typical range in Keller |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes Keller jobs toward the higher end: dual-zone homes require twice the diagnostic time, slab-movement-related duct repairs add labor, and the large square footage means bigger equipment. What keeps them lower: our trucks are stocked for common failures, so we don’t charge extra for a return trip with parts. Every job starts with a written price handed to you before any work begins, and that price does not change at the door. That’s The Kingswell Way, not a special offer.
Neighborhoods We Serve in Keller
We run calls across Keller’s full residential footprint, from established sections near Bear Creek Parkway to newer corridors closer to Highway 170. Most of our dispatch routes put a technician at your door within the arrival window we commit to in writing.
- Bloomfield
- Keller-Smithfield Road corridor
- Bear Creek Parkway area
- Johnson Road vicinity
- Highway 170 / Alliance Gateway corridor
Service Area – Cities Near Keller
Our Dallas-Fort Worth office dispatches crews throughout the northern Tarrant County ring. We regularly serve homeowners in Haslet, TX, North Richland Hills, TX, Roanoke, TX, and Southlake, TX, with the same written pricing, arrival windows, and 365-Day Done Right Promise that Keller customers receive.
Serving Keller, TX - Our Local Coverage Area
We’re based in the Keller area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Keller, TX
We answer calls with a live person 24 hours a day, and we schedule same-day appointments for true emergencies like a failed AC system during extreme heat or no heat in freezing conditions. Call (817) 402-2972 and we’ll give you a firm arrival window.
Some Keller communities, particularly newer developments near Highway 170, require HOA notification for outdoor unit replacements. We handle permit pulls through the city of Keller when a full system replacement requires it, and we note any HOA requirements during your estimate so there are no surprises.
In Keller’s older homes, slab movement from our expansive black-clay soil often separates the upstairs air handler from its supply plenum, dumping conditioned air into the attic. The equipment runs fine, but the air never reaches your vents. We check plenum integrity on every upstairs call, and we’ve resolved this exact issue for homeowners in Bloomfield and along Keller-Smithfield Road.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Keller Customers Say
"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly"Furnace wouldn't light the first cold morning. The guy walked me through what he was checking so I actually understood it. Replaced the igniter, wrote up the warranty, and it's been warm since."
- Alicia Romero