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 Justin, TX
Coldharbour Heating & Air handles AC repair, furnace repair, and AC installation throughout Justin, with most repair calls completed same day and a written price delivered before any work begins. Justin’s unique position at the edge of DFW’s suburban sprawl means we routinely work on everything from 2010s-era production homes exiting builder warranties to rural properties without natural gas access. Call (817) 402-2972 and a live person answers, 24 hours a day.
Why Justin Homes Are Different
Justin sits at the precise frontier of DFW’s northwestward suburban growth into rural Denton County. That boundary creates two completely different HVAC realities on the same service route. In the newer subdivisions, we’re servicing large production-built homes from 2005-2022, many 3,000-4,500 square feet with open-concept layouts that strain the original single-zone systems builders installed to hit price points. We’ve all seen the pattern: the thermostat near the master reads 74°F while the kids’ rooms at the back of the house sit at 81°F. That load-imbalance complaint drives a steady stream of zoning-system and variable-speed upgrades now that those homes are aging past warranty.
On the same day, we might head to a rural farmstead on a propane tank with no Atmos Energy connection at all. Heat pump or propane-based decisions are routine here, unlike in neighboring Roanoke or Trophy Club where gas service is everywhere. North Texas’s heavy shrink-swell clay soils shift slab foundations seasonally, stressing ductwork connections in slab-on-grade homes far more than sandier soils to the west. And Justin’s southern Plains position puts outdoor condensers directly in spring hail paths, compressor and coil damage we see at rates Fort Worth suburbs to the south rarely match.
Our Main Justin Services
Justin homeowners call us most often for these three services, each with its own dedicated page below.
AC Repair in Justin
AC repair in Justin runs from failed capacitors and refrigerant leaks to compressor damage after hail events. The summer heat here regularly pushes past 100°F for extended stretches, so a down system isn’t just uncomfortable, it’s a genuine health concern for children and older adults. Our technicians carry common parts for Trane, Lennox, Goodman, and Rheem systems on every truck, and most calls are completed in a single visit. AC Repair in Justin
Furnace Repair in Justin
Furnace repair in Justin covers everything from igniter failures and flame-sensor cleaning to heat-exchanger inspection on propane-fired units in rural properties. The freeze events that sweep through Denton County each winter don’t negotiate with broken heating systems. We check gas pressure and combustion safety on every heating call, and we issue a written 365-Day Done Right Promise before leaving. Furnace Repair in Justin
AC Installation in Justin
AC installation in Justin requires honest load calculation, especially for those oversized 2010s production homes with undersized original equipment. We size for the actual cubic footage and insulation values, not the builder’s original shortcut. For homes without gas access, we walk through heat pump and propane options with real operating-cost comparisons. Every installation gets a written fixed price and a scheduled install date, with rebate and financing paperwork handled. AC Installation in Justin
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 Justin
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 refrigerant for Trane, Lennox, Goodman, and Rheem on Justin-area trucks, so most repairs don’t wait on parts. our brands
Pricing for HVAC Company in Justin, TX
| Service | Typical range in Justin |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes Justin jobs toward the higher end: hail-damaged condenser coils requiring full replacement, propane system parts with longer lead times, and zoning upgrades for those oversized single-zone production homes. What keeps them lower: straightforward capacitor or igniter swaps we complete in under an hour. Either way, the written price arrives before a single tool comes out, and it doesn’t change at the door.
Neighborhoods We Serve in Justin
We dispatch from our Dallas-Fort Worth office and keep trucks routed throughout Justin daily. Most calls are reached within the promised arrival window.
- Timberbrook
- Justin Heights
- Northpointe
- Harvest
- Old Town Justin and surrounding rural parcels
Service Area – Cities Near Justin
Our service radius extends to homeowners in Roanoke, TX, Haslet, TX, Argyle, TX, and Keller, TX, with the same live-answer phones, written upfront pricing, and 365-Day Done Right Promise on every qualifying repair.
Serving Justin, TX - Our Local Coverage Area
We’re based in the Justin 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 Justin
Most same-day service calls in Justin are reached within hours, not days. Our phones are answered by a live person 24/7, and we keep technicians routed through Denton County daily. Call (817) 402-2972 for current availability.
Some newer Justin communities do require HOA architectural review for outdoor unit changes. We provide the equipment specification sheet and photo mockup most HOAs request, and we schedule install only after approval so you’re not caught off guard.
Yes. Many rural parcels in and around Justin lack natural gas access, so propane-fired furnaces and heat pumps are common here. Our technicians are trained on both, and we carry combustion-analysis equipment to verify safe operation on every propane heating call.
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 Justin Customers Say
"AC died overnight with a newborn in the house. They bumped us up the list and had it running by noon. I about hugged the guy. Fair price even on a rush call."
- Celeste Ngo"The repair was done well and quickly. Scheduling over the phone was a little clunky and I got transferred twice, but the tech himself was great and on time."
- Brett Haygood"Furnace was short cycling all winter. They diagnosed a bad sensor instead of condemning the whole unit like I feared. Cheap fix, honest call."
- Russ Tiedemann