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 Southlake, TX
When a Southlake HVAC system fails in late July, it rarely fails politely. Homes here are large, rooflines are steep, and the clay-heavy soil shifts enough to flex ductwork and settle outdoor condensers. Dalton Heating & Air handles that reality with a simple structure: a live person answers the phone 24/7, the price is in writing before any work begins, and every repair carries a full-year written guarantee. If you need service today, call (361) 306-9515.
The three jobs Southlake homeowners call us for most often: AC repair when cooling quits, furnace repair when a winter cold front hits, and heat pump installation when the right answer is replacement rather than more patchwork. Each of those has its own Southlake page linked above, with pricing ranges, what the job actually involves, and the specific failure patterns we see in this area.
Why Southlake Homes Are Different
Southlake sits on the eastern edge of the Fort Worth basin, and the ground tells you a lot before an HVAC technician ever opens a panel. Expansive clay soil moves with rainfall and drought, which means condenser pads settle out of level, refrigerant lines flex at the penetration points, and duct runs under slab foundations work loose at the boots more often than in areas with stable soil. A condenser sitting half an inch out of level is not a cosmetic issue. It loads the compressor unevenly and shortens its life. We check pad level on every Southlake repair call because we see it that often.
The housing stock is newer than much of the metro, heavily concentrated in master-planned neighborhoods where homes run from around 2,800 to well over 6,000 square feet. That square footage matters. Multi-zone systems, dampers, variable-speed air handlers, and long duct runs are standard here, and that changes the repair work. A single-stage technician guessing at a zoned Carrier or Trane system in Southlake is making it up. Our crews are factory-trained on the control logic of nine major brands, including Rheem, York, and Daikin, and we stock zone dampers and control boards locally so repair leads stay short.
Permit reality is part of the job too. Southlake enforces its mechanical permitting, and a replacement installed without a permit becomes a title issue when the house sells. On installs, we handle the permit paperwork as part of the fixed price. HOAs in several newer Southlake developments also require written notice before an outdoor unit is changed, and we handle that as well. None of this is dramatic. It just has to be done right.
Our Main Southlake Services
Most Southlake calls to our office are one of two things: an air conditioner that stopped cooling in summer, or a furnace that will not light in winter.
AC Repair in Southlake
Southlake AC failures fall into patterns. Compressor contactors and capacitors burn out under sustained 100-degree runtime, drain lines clog from attic heat and heavy run cycles, and condensers sitting on settled clay pads lose their charge early. Diagnosing that correctly requires a technician who understands the specific equipment, not just the symptom. We carry replacement parts for the major brands in our local inventory, and the repair price is in writing before we touch the system. Full breakdown of costs and typical failures at the AC Repair in Southlake page.

Heat Pump Installation in Southlake
A heat pump makes particular sense for larger Southlake homes because it handles both cooling and heating without a separate furnace, and current rebates shorten the payback. But sizing is the whole game here. Undersize the unit for a two-story 5,000-square-foot home and the upstairs zone never reaches setpoint in August. Oversize it and the system short-cycles, leaving humidity high. We run a manual load calculation on every install, not a square-footage guess. Fixed written price, permit handled, set install date. See Heat Pump Installation in Southlake for the full scope.

Furnace Repair in Southlake
Furnaces in Southlake do not work hard for long seasons, but when a cold front drops temperatures into the 20s in January, the systems that have been idle since March get tested all at once. When they fail, it is usually a failed ignitor, a cracked flame sensor, or a pressure switch gone bad, and the failure tends to show itself at startup. The repair itself is often a straightforward same-visit fix if the part is on the truck. We stock common ignition and control parts locally, and every furnace repair carries the same written one-year guarantee. Details at Furnace Repair in Southlake.

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 Southlake
Our technicians are factory-trained on nine major residential HVAC brands, including Rheem, York, Daikin, and Bryant, and that matters for repairs in a city where multi-brand systems are common. We keep control boards, capacitors, ignitors, and pressure switches stocked locally for the Southlake area, which means on most repair calls the unit is fixed the same day rather than waiting on a warehouse transfer. See our brands for the full training line.
Pricing for HVAC Company in Southlake, TX
Here is what real jobs in Southlake actually cost. These are the numbers we quote and write into the estimate before any work starts, so there is no gap between what you see here and what the invoice says.
| Service | Typical range in Southlake |
|---|---|
| AC repair (minor: capacitor, contactor, drain clear) | $150 – $350 |
| AC repair (major: control board, blower motor, compressor) | $350 – $650 |
| AC installation (full system, single-stage) | $3,500 – $5,800 |
| AC installation (full system, two-stage or variable-speed) | $5,800 – $7,500 |
| Furnace repair (minor: ignitor, flame sensor, pressure switch) | $150 – $400 |
| Furnace repair (major: gas valve, control board, inducer motor) | $400 – $700 |
| Seasonal tune-up (per system) | $80 – $200 |
The biggest cost drivers in Southlake are access and equipment type. A condenser behind a fence on a two-story roof deck, or a furnace in an attic with a narrow scuttle, takes longer to work on safely, and that is reflected honestly in the quote. What never changes is the upfront-price promise. The number on the written estimate is the number you pay, and every repair includes a written guarantee covering parts and labor for a full year.
Neighborhoods We Serve in Southlake
Our crews work throughout the city daily. Homes across Southlake vary in age, construction type, and HVAC complexity, but the service standard does not change. We respond to calls across the city with typically same-day service for repair calls during the week, and emergency coverage whenever a system fails outright.
- Timarron
- Carroll Park
- Shady Oaks
- Southlake Town Square area
- Monticello
If you are not sure whether you fall within our Southlake service area, call (361) 306-9515 and whoever answers will confirm it right then.
Service Area – Cities Near Southlake
Beyond Southlake, Dalton Heating & Air runs service throughout the surrounding corridor. We serve Colleyville, TX to the south, Grapevine, TX to the east, Flower Mound, TX to the north, and Roanoke, TX to the northwest with the same written pricing and one-year repair guarantee. If you are just outside the city line, call and we will tell you exactly when a technician can be at your door.
Serving Southlake, TX - Our Local Coverage Area
We’re based in the Southlake 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 Southlake
On repair calls, we typically have a technician at Southlake homes the same day during normal business hours, and emergency calls are answered by a live person 24/7. When you call, we give you a real arrival window and confirm who is coming by name. Call (361) 306-9515 and we will give you the soonest available slot.
Yes, the city requires a mechanical permit for system replacements, and several Southlake HOAs also require written notice before an outdoor unit is changed. On installs, Dalton handles the permit paperwork and coordinates with the HOA as part of the fixed written price. You do not chase paperwork.
We serve the full Southlake area, including gated communities and neighborhoods with stricter access policies. The technician schedules accordingly so arrival goes smoothly at the gate. If you are unsure we cover your street, call (361) 306-9515 and the person who answers will confirm.
When the system fails, the next move is the only one that matters. Call Dalton Heating & Air at (361) 306-9515 for a free estimate and a written price before any work begins. A real person answers, day or night.
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 Southlake Customers Say
"Changed the filter size and added a better filter rack. Simple and useful advice."
- Rhonda C."Honest, direct people. Told me what the furnace needed and nothing more, and the bill matched."
- Eliza S."Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D.







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