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.
HVAC Company in Keller, TX
Keller HVAC work comes down to two things: summers that push AC systems past 100 degrees, and a housing stock that’s grown in distinct waves over the last three decades. Most Keller homes run either a builder-grade system from the 1990s or a mid-life unit installed around 2010 to 2015, and both age differently under Texas heat. We’re Dalton Heating & Air, and we handle repair and installation work across Keller with written pricing before any job starts. If your system has failed or simply can’t hold temperature, call (361) 306-9515 and you’ll get a live person, not a voicemail queue.
Why Keller Homes Are Different
Keller’s housing follows a pattern that matters for HVAC work. The older sections around the center of town, near Bear Creek Park and the neighborhoods off Keller Parkway, tend to have smaller lots and systems that were installed before modern efficiency standards. Newer developments south of 170 and west toward Interstate 35W run larger floor plans, often with two-story construction and zoning systems that put different loads on different parts of the house.
Clay soil is the wildcard here. Keller sits on expansive clay that shifts with moisture, and we regularly see condenser pads that have tilted or settled unevenly, which puts stress on the refrigerant lines and can cause slow leaks over time. A tilted outdoor unit in Keller isn’t a rare find; it’s something we look for on almost every call, because a unit that’s out of level runs harder and fails earlier. Add in the Oak and Hackberry pollen that coats condenser coils every spring, and you get systems that need the coil fins cleaned more often than homeowners expect.
Our Main Keller Services
Keller homeowners call us most often for two situations: an AC system that can’t keep up during a heat wave, and a furnace that fails during the first real cold snap of the season. Both have their own dedicated Keller pages below, along with heat pump installation for homes making the switch to electric.
AC Repair in Keller
When a Keller AC goes down in August, the house heats up fast, and the call usually comes with two questions: what’s wrong, and how much to fix it. We answer both before any work begins. The most common repairs we see in Keller are failed capacitors, refrigerant leaks at the evaporator coil, and contactors worn out from cycling. A system that’s short-cycling, blowing warm air, or running constantly is usually telling you something specific. On every repair, the price is written before we start, and the repair itself is guaranteed in writing for a full year. If it fails inside that window, we return at no charge. See the full breakdown at AC Repair in Keller.

Heat Pump Installation in Keller
A heat pump handles both heating and cooling in one system, which suits Keller’s climate well: warm for most of the year, with winter lows that rarely stay below freezing for long. For homes without gas service or homeowners who want to move off gas entirely, a heat pump is often the cleanest fit. Installations in Keller vary by home size and ductwork condition; older homes may need duct modifications alongside the outdoor unit and air handler. We install and service units from Trane, Lennox, and Goodman, and every quote is a written fixed price with a set install date before you sign anything. Details are on the Heat Pump Installation in Keller page.

Furnace Repair in Keller
Keller winters aren’t long, but when the temperature drops into the 30s, a dead furnace gets noticed immediately. Most furnace failures in Keller trace back to a few culprits: failed igniters, dirty flame sensors, and control boards that wear out after years of cycling. Gas furnaces carry a meaningful safety element; the heat exchanger must be inspected for cracks, because a cracked exchanger can release carbon monoxide into the home. Our technicians are trained on that inspection and perform it on every furnace call. Every repair is priced in writing before the work starts, and the repair carries the full-year written guarantee. Learn more at Furnace Repair in Keller.

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
Dalton technicians are factory-trained on the systems most common in Keller, including Trane, Lennox, Goodman, and Rheem. We keep common parts stocked locally for those brands, and for parts we don’t have on the truck, our Dallas-Fort Worth dispatch network can usually get them to a Keller job site the same day. See the full list on our brands page.
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 |
| Seasonal Tune-Up | $80 – $200 |
What moves a Keller job toward the top of those ranges is usually access: a furnace tucked into a tight attic space, an AC condenser in a side yard with fence clearance issues, or ductwork that’s been chewed up by rodents. On every single job, regardless of what we find, the price goes in writing before the work begins. That’s the Garrison Standard, and it’s not negotiable.
Neighborhoods We Serve in Keller
We cover all of Keller, from the older streets near Keller Town Center to the newer subdivisions along the city’s southern and western edges. Typical response time for most repair calls is the same day, and emergency calls are answered by a live person around the clock.
- Hidden Lakes
- Marshall Ridge
- Villas of Stone Glen
- Woodland Springs
- Sarah Brooks Estates
Service Area – Cities Near Keller
Dalton Heating & Air serves Keller along with the surrounding Tarrant County communities. If you live just outside Keller, we also cover Haslet, TX to the northwest, North Richland Hills, TX to the south, Roanoke, TX to the west, and Southlake, TX to the east. Same-day and emergency availability applies across the full service area.
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
Most Keller repair calls are completed the same day. Dispatch is coordinated from the Dallas-Fort Worth office, and crews are stationed to serve Keller directly. If you call before noon, same-day service is typical; emergency calls are answered by a live person 24/7 at (361) 306-9515.
Yes, the City of Keller requires mechanical permits for most HVAC installations and some repair work. Dalton handles the permit paperwork as part of the job, so you don’t have to file anything yourself. The permit fee is included in your written estimate, not added as a surprise later.
Yes. The same Dalton technician who diagnoses a Furnace Repair in Keller can also quote a Heat Pump Installation in Keller if you’re weighing repair versus replacement. You get one written price for either path, and the decision stays yours. Call (361) 306-9515 to schedule a visit.
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
"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O.







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