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 Dallas, TX
Furnace repair in Dallas is a different trade than it is in most of the country. Winters here are mild, but a blue norther can drop temperatures 40 degrees in hours, and a system that sat idle through a long, humid summer is being asked to fire up in a hurry. The real complication is the ground under the house: Dallas sits on black clay that swells and shifts with every wet-dry cycle, and in the older pier-and-beam homes that movement throws equipment and ductwork out of alignment in ways slab-on-grade suburbs never see. Sunstone AC Repair handles furnace repair, AC repair, and AC installation across Dallas. Call (866) 970-7959.
Why Dallas Homes Are Different
Dallas sits on the boundary between the humid South and the arid West, and that line lands right through the clay underneath the city. The same expansive vertisol that cracks foundations and heaves piers also moves the equipment and ductwork sitting on top of it. In the pier-and-beam bungalows around Old East Dallas and Deep Ellum, supply ducts routed through unconditioned crawlspaces get pushed out of alignment when the soil swells and drops, and opened seams at the plenum follow. It’s a failure mode specific to Dallas’s combination of soil and housing, and it’s the reason a “recharge and go” approach so often bounces back.
The housing stock makes it harder. The ZIPs we work here, from 75210 through the inner-city core, hold a dense mix of 1920s-40s pier-and-beam and brick bungalows, 1960s ranch tracts, and newer mid-rise and condo conversions. Each one creates its own problems: older attic-and-crawlspace ductwork, undersized closets for air handlers, and retrofits into unvented attics that trap heat.
The climate adds another layer. Dallas summers routinely run 100°F+ for weeks with high humidity, so systems live in near-continuous cooling duty while attic air handlers bake at 130-150°F. That heat-island load sits on the cooling side, but it’s the same equipment and the same coil that carries you into winter. When the blue northers roll through and demand heat, everything that wore down over summer shows up.
Styles & brands we work with
- AC repair
- Furnace & heating
- Heat pumps
- Ductless mini splits
- Carrier
- Trane
- Goodman
Our Main Dallas Services
Two services bring Dallas homeowners to the phone more than any other, and both live on their own pages.
AC Repair in Dallas
Cooling work in Dallas is inseparable from the heat-island load. When a system runs near-continuously for weeks at 100°F+ and its air handler sits in an attic at 130-150°F, the classic failures show up on schedule: capacitors and contactors in mid-July, slow refrigerant leaks that only surface under full load, and coils that lose capacity year over year. In the older bungalows, we also check duct seams in the crawlspace, because a run that loses its seal in unconditioned space works against you all summer. We diagnose the fault before we quote the fix, so the repair matches what failed. For AC Repair in Dallas, that diagnosis comes first.

AC Installation in Dallas
Replacing a system in Dallas means replacing it for the load this city actually delivers. We match equipment to the house, not to a spec sheet, and we look at where the new air handler can sit, since undersized closets and unvented attic retrofits are common constraints in the inner-city housing. Equipment sizing, attic placement, and duct routing all get settled before install day, and you get a written fixed price. We work across nine major brands, so the recommendation is driven by what the house needs rather than a quota. AC Installation in Dallas starts with a load calculation, not a guess.

Furnace Repair in Dallas
When we open a furnace in a 1920s bungalow in Old East Dallas, we’re often working on a unit that’s been added to a system never designed around it, and the ductwork may have shifted with the clay under the piers. Dallas’s cool season stresses equipment differently than its summers do. A furnace that sat idle for months gets tested by a blue norther dropping temperatures 40 degrees in hours, and a heat pump that ran all year gets hit from both sides. We treat heating as its own job, not a summer add-on, and we work on the full spread of residential systems you’ll find here, including Goodman, Rheem, York, and Daikin equipment. If your system is failing, that’s a Furnace Repair call, and it’s worth making before the first hard cold snap.
Gas Furnace Repair
Gas furnaces are where the diagnosis has to be most careful, since gas and combustion are not a place for trial and error. In Dallas’s older bungalows, we see them retrofitted into closets and crawlspaces that were never designed for them, which puts a premium on getting venting and airflow right.
Signs you need it
A yellow or flickering flame instead of a steady blue one, a smell of gas, a furnace that short-cycles, or heat that never reaches the far rooms of the house.
What it costs in Dallas
Typical gas furnace repair in Dallas runs $150 – $700, and the written estimate sets the final price.
How we do it
We check gas pressure and combustion, inspect the heat exchanger and venting, test the igniter and flame sensor, then confirm airflow before we quote the repair. A gas smell or a suspected heat exchanger problem means shut the system off and call a trained professional, not a DIY fix.
Heat Pump Repair
Heat pumps are common in the mid-rise and condo conversions and the newer builds, and in Dallas they absorb the full climate swing: weeks of continuous cooling, then a rapid cold drop that flips them into heating mode.
Signs you need it
Weak heat or weak cooling from the same system, the outdoor unit icing when it shouldn’t, a reversing valve that won’t switch, or a unit that runs constantly without reaching setpoint.
What it costs in Dallas
Typical heat pump repair falls in the same $150 – $700 range, and the written estimate sets the final price.
How we do it
We test refrigerant charge and the reversing valve, check defrost operation, inspect the compressor and contactors, and confirm the air handler is moving the right airflow for both modes before quoting.
What Furnace Repair Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Gas furnace repair | $150 – $700 |
| Heat pump repair | $150 – $700 |
| Furnace maintenance / tune-up | $80 – $200 |
Where a job lands in that range depends on the part, the accessibility of the unit, and whether duct or venting correction is involved. We give you the written estimate before any work starts, so the number doesn’t move.
Can you fix my furnace the same day in Dallas?
Very often, yes. Same-day repair is routine for common failures like igniters, flame sensors, and control boards. We answer 24/7 and dispatch from 7am to 7pm, Sunday through Friday, so call (866) 970-7959 and we’ll get it moving.
Is it worth repairing an older furnace or should I replace it?
Repair usually wins when the part is common and the heat exchanger is sound. Replacement makes more sense if the exchanger is failing or repairs are stacking up. We diagnose the problem, not the upsell, and tell you plainly which way it points. Call (866) 970-7959 for an exact quote; estimates are free.
Brands We Service in Dallas
Our technicians are trained to diagnose and repair nine of the most-installed residential brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. Because we know the failure points of specific model lines, diagnosis is faster and return visits are fewer. See our brands for the full list and how we work with each.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Dallas, TX
| Service | Typical range in Dallas |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| Gas furnace repair | $150 – $700 |
| Heat pump repair | $150 – $700 |
| Tune-up | $80 – $200 |
| AC installation | $3,500 – $7,500 |
In Dallas, price moves with attic placement, how much duct correction the crawlspace needs, and the age of the equipment involved. We quote from an upfront written price before any work begins, so what you approve is what you pay.
Neighborhoods We Serve in Dallas
We work across inner-city Dallas, where the older pier-and-beam and tract housing demands the most careful diagnosis. Our dispatch runs out of our Garland location, and from there we reach the neighborhoods below with fast dispatch from 7am to 7pm, Sunday through Friday. One response note covers the whole area: call ahead and we can usually book a same-day visit for repair work.
- Old East Dallas
- Deep Ellum
- Uptown and the M-Streets
Service Area – Cities Near Dallas
Dallas sits at the center of a wide service area, and we work around it. Families in Mesquite, TX and Garland, TX are close to our home base, and we cover Richardson, TX and Seagoville, TX from the same dispatch. The black-clay soil and housing mix vary across these towns, and we treat each on its own terms rather than applying a Dallas rulebook to them.
Serving Dallas, TX – Our Local Coverage Area
We serve Dallas 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 Dallas
Same-day repair is often possible, and we answer 24/7 with fast dispatch from 7am to 7pm, Sunday through Friday. A call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm. Call (866) 970-7959.
Replacement work typically requires a permit, so ask your city’s building department before scheduling, and check with your HOA on any exterior equipment changes. We’ll walk you through what your job needs when we give the estimate.
We cover Dallas and the surrounding cities, including Mesquite, Garland, Richardson, and Seagoville. Our dispatch reaches the inner-city neighborhoods and the outlying towns from the same base. Call (866) 970-7959 for a free estimate anywhere in the area.
If your furnace is failing, or you’re not sure whether to repair or replace, call Sunstone AC Repair at (866) 970-7959 for a free estimate. We work on your brand, we diagnose the problem rather than the upsell, and one call covers your whole system, heating and cooling alike. We answer 24/7, with 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 60 minutes.
- 4You approve before work beginsNothing starts until you say go.
What Dallas Customers Say
"Ductwork in the attic had a disconnected run that had been dumping cold air into the insulation for who knows how long. He found it, resealed it, and one bedroom that was always hot is now normal."
- Alma Martinez"Blower motor on a 12 year old furnace. He gave me the honest math on repair versus replace and did not push me toward the bigger ticket. We repaired it and it's been fine."
- Tara Doyle"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."
- Nia Robinson