AC repair
Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal 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.
Get your free estimateHVAC Company in Southlake, TX
Furnace replacement in Southlake is a different job than it is in most of the Metroplex. Homes here are large custom builds, often with two or more separate systems and zoned dampers, so a heating upgrade means matching equipment to a house that already has a lot of it. Denali AC Repair works on furnace replacement, furnace repair, and AC installation, and we’re factory-familiar with the brands that fill these mechanical rooms. If your heat is failing, call (888) 604-8863. We answer 24/7.
Why Southlake Homes Are Different
Nearly every house in Southlake is a large, newer custom build, typically 4,000 to 10,000 square feet, and most carry at least two HVAC systems. That changes the work. A furnace replacement here is rarely a single swap; it’s a load calculation across zones, ductwork sized for tall ceilings, and often an attic-mounted air handler that shares space with a second or third unit.
North Texas summers run sustained 100°F stretches, so equipment spends July through September near its limit, and blue-norther freezes in winter put real demand on heat pumps and emergency heat. The upstairs and bonus-room systems in these two-story customs tend to fail first. Attics that hit 140°F+ cook compressors and blowers, and undersized returns starve them for air. We check return sizing and attic-mounted handlers before recommending anything. Older pockets near the original town center, some 1970s and 1980s builds, have smaller systems and shorter lives, and HOA standards in master-planned communities shape what equipment goes back in. Southlake homeowners expect high-efficiency and variable-speed equipment, not budget patch jobs.
Styles & brands we work with
- AC repair
- Furnace & heating
- Heat pumps
- Ductless mini splits
- Carrier
- Trane
- Goodman
Our Main Southlake Services
These are the two jobs Southlake homeowners call us about most, and both fall under one service relationship.
AC Installation in Southlake
On a 6,000 square foot Southlake home with three zones, a new cooling system means a proper load calculation on each zone, not a guess based on the old nameplate. We size for the house, account for tall ceilings and upstairs loads that run near-constantly in summer, and set a written fixed price before anything is ordered. We work on equipment from Trane, Lennox, Goodman, and the other major manufacturers, and we don’t push one brand over another. For the full picture on a new system, see AC Installation in Southlake.

Furnace Repair in Southlake
A furnace that’s short-cycling or blowing cold in a Southlake custom home is often an airflow problem before it’s a parts problem. When two systems share a large house, one failing unit can look like a whole-home problem, so we diagnose the system first and its returns second. Repairs are quoted per job with a written estimate, and we tell you when a repair isn’t the honest answer. If your heat is down, start with Furnace Repair in Southlake.

Furnace Replacement in Southlake
Furnace replacement in Southlake means matching a new heating system to a house that was built for volume: 1990s through 2010s custom homes in Timarron, Carillon, and similar master-planned communities, usually 4,000 to 10,000 square feet with zoned dampers and two or more separate systems. When winter freezes roll through, these homes lean on heat pumps and emergency heat, and a unit sized for the original build often isn’t sized for how the house runs now. Our furnace replacement work is scheduled around a full-system plan, not a parts swap.
Whole-System Furnace Replacement
Signs you need it
The sign is a furnace that has been repaired repeatedly and still can’t hold temperature through a hard freeze, or one that’s clearly older than the rest of the mechanicals in a large custom home.
What it costs in Southlake
Typical furnace replacement runs from the repair ceiling on a failed single system up into install pricing in the thousands, and the written estimate sets the final price once zoning and system count are confirmed.
How we do it
We calculate the load for the system in question, confirm ductwork and return sizing, propose equipment fit to the home and budget, set an install date, and complete the install with the system tested at start-up.
Zoned and Multi-System Replacement
Signs you need it
You need this when one zone or upstairs system dies while the others keep running, and the house has been limping along on partial heat all winter.
What it costs in Southlake
Multi-system work prices per unit and per zone, so a two-system replacement costs more than a single swap, with the written estimate setting the final price.
How we do it
We map every system and damper in the house, plan replacement so the other units keep running during the work, and sequence installs so the home never goes fully without heat.
What Furnace Replacement Costs in Southlake
These are typical estimated ranges for Southlake. The written estimate sets the final price.
| Item | Typical range in Southlake |
|---|---|
| Furnace repair (before replacement) | $150 – $700 |
| AC installation (paired cooling work) | $3,500 – $7,500 |
| Tune-up (system check) | $80 – $200 |
Should I replace my furnace or keep repairing it?
Replace when repairs keep repeating and the system can’t hold temperature through a freeze. Repair when it’s a single, fixable fault. We’ll give you the honest math on both. Call (888) 604-8863 for an exact quote; estimates are free.
Can you replace a furnace in a Southlake home with multiple systems?
Yes. Multi-system homes here are normal, and we plan replacement so the other units keep running while the work is done. Call (888) 604-8863 to schedule an estimate; we answer 24/7 and dispatch from 7am to 7pm, Sunday through Friday.
Brands We Service in Southlake
We service nine of the most widely installed HVAC brands, including Trane, Lennox, Goodman, and Rheem. There’s no exclusive dealer agreement steering what goes in your home, so recommendations follow the house and your budget. See our brands. Turnaround depends on the equipment and the job.
See the difference
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These are typical estimated ranges. The written estimate sets the final price.
| Service | Typical range in Southlake |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
In Southlake, price climbs with square footage, number of systems, zoning, and how much duct and return work a large two-story home needs. We give upfront prices and put the job in a written estimate before work starts.
Neighborhoods We Serve in Southlake
We work throughout Southlake, from the large custom homes in Timarron and Carillon to older, smaller builds near the original town center. Whatever the blueprint, the job is planned the same way: system first, then equipment.
- Timarron
- Carillon
- Near the original town center
- Southlake Boulevard corridor
- Surrounding master-planned communities
Expect a note on timing when you call: fast dispatch from 7am to 7pm, Sunday through Friday.
Service Area – Cities Near Southlake
We also work with homeowners in nearby communities. If you’re in Colleyville, TX, Grapevine, TX, Bedford, TX, or Hurst, TX, we can help with furnace replacement, furnace repair, and AC installation there too. The equipment mix is similar, and so is the approach: fit the system to the home.
Serving Southlake, TX – Our Local Coverage Area
We serve Southlake and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Southlake
We answer 24/7, and fast dispatch runs from 7am to 7pm, Sunday through Friday. A call outside dispatch hours is booked into the next opening. Call (888) 604-8863 for an estimate.
Most cities require a permit for system replacement, and HOA rules can affect visible equipment placement. Ask your city’s building department and your HOA, then call us to plan the job around it.
Yes. We work throughout Southlake, including Timarron, Carillon, and the surrounding communities, and in neighboring cities like Colleyville, Grapevine, Bedford, and Hurst. Call (888) 604-8863 to schedule.
Call (888) 604-8863 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
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.
- 3A background-checked tech heads outLicensed & insured, typically within 30-60 min.
- 4You approve before work beginsNothing starts until you say go.
What Southlake Customers Say
"AC died in August, which in this city is an emergency. He found a blown capacitor, replaced it, and had cold air blowing in under 40 minutes. Charged me about what I'd expect to pay for the part plus a service call."
- Eric Ziegler"Fixed the immediate issue and was honest that the unit is old enough that I should be saving for a replacement. Slightly more expensive than I hoped but he was upfront before starting."
- Veronica Guzman"Contactor was pitted and chattering. Cheap part, quick fix, and he showed me the burn on the old one so I could see for myself."
- Hector Herrera