Furnace & heating
AC repair
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 Wells Branch, TX
Coldharbour Heating & Air is the HVAC company Wells Branch homeowners call when a condenser quits on a 98-degree afternoon or a furnace won’t fire on the first cold morning of the year. Most homes here were built between the 1970s and 1990s, slab-on-grade with tight attic spaces and original HVAC closets, so fixing anything usually takes more thought than a swap-out. We work around those constraints, put the price in writing before any work begins, and back every repair with the 365-Day Done Right Promise. Call (361) 204-1605 and a live person answers, any hour, any day.
Why Wells Branch Homes Are Different
Wells Branch’s housing stock is mostly single-family detached homes from the 1970s through the 1990s. Slab foundations are the rule, not the exception, which means ductwork was often run through tight chases or shallow attic spaces that leave little room to maneuver. Many homes still have their original HVAC closets tucked into hallways, and the units they hold were sized for a different era of comfort expectations. When one of those systems fails, it’s rarely as simple as sliding in a new condenser. The job usually involves adapting new equipment to old duct layouts, correcting airflow problems that have been there since the house was built, or reworking a closet that was never designed for modern equipment.
The local climate adds another layer. Wells Branch summers are hot and humid, and the cooling season runs long. High humidity accelerates coil corrosion, and the hard water drawn from local aquifers leaves scale deposits that shorten the life of evaporator coils and heat exchangers. We see the same pattern on service calls year after year: cooling systems that have been run hard for months at a time, with maintenance deferred, and the first cold snap exposes a furnace that hasn’t been checked since spring. Homeowners here are better off with a maintenance rhythm matched to the climate, not a once-a-decade emergency visit.
One more practical reality: many original 1980s homes still have their first condenser unit sitting on a pad in the side yard, the faded Carrier or Rheem badge pointing at a house that was built around it. That’s not a criticism of the equipment. It’s a signal that when the replacement finally comes, it needs to be sized and installed for the next twenty-five years, not just ordered out of a catalog.
Styles & brands we work with







Our Main Wells Branch Services
Three services cover nearly every call we make in Wells Branch: AC repair, furnace repair, and AC installation. Each has its own detailed page, because the way we approach a repair here is not the same as the way we approach a full system replacement.
AC Repair in Wells Branch
Wells Branch summers punish cooling equipment. Refrigerant leaks, failed capacitors, clogged condensate lines, and corroded coils are the calls we make most often between May and October, and each one has a fix that starts with honest diagnosis. We carry parts for the major residential brands, so a repair that might otherwise wait days on a warehouse order can often be finished the same visit. The 365-Day Done Right Promise means the repair is guaranteed in writing for a full year; if it fails inside that window, we return and correct the work at no charge. Full details, including local pricing and common failure patterns, are on the AC Repair in Wells Branch page.

Furnace Repair in Wells Branch
Wells Branch winters are mild, which means furnaces sit unused for months at a time and often fail at first ignition rather than mid-season. Igniters crack, flame sensors build up residue, pressure switches stick, and blowers grind through bearings that have been sitting still since March. We diagnose the problem, explain what’s wrong in plain English, and hand you a written price before any tools come out. Repairs are covered by the 365-Day Done Right Promise, written down and left with you, not recited from memory. See typical furnace repair costs and what we check first on the Furnace Repair in Wells Branch page.

AC Installation in Wells Branch
Replacing a cooling system in Wells Branch is rarely a straight swap. The original HVAC closets and duct chases in 1970s-1990s slab homes often can’t accommodate modern equipment without some planning, and the humidity here means a correctly sized system matters more than a bigger one. We measure, run the load calculation, and give you a written fixed price before installation begins. We install Carrier, Bryant, American Standard, and other major brands, and we handle the electrical and refrigerant connections the right way. What the job involves and what it costs in Wells Branch is on the AC Installation in Wells Branch page.

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 Wells Branch
We’re trained to service nine major residential HVAC brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We keep common repair parts for these systems in local stock, which shortens repair turnaround for Wells Branch homeowners. More detail is on our brands page.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Wells Branch, TX
| Service | Typical range in Wells Branch |
|---|---|
| AC repair (minor, e.g. capacitor or contactor) | $150 – $300 |
| AC repair (major, e.g. compressor or coil) | $400 – $650 |
| Furnace repair (minor, e.g. igniter or flame sensor) | $150 – $280 |
| Furnace repair (major, e.g. blower motor or control board) | $350 – $700 |
| AC installation (replacement, standard efficiency) | $3,500 – $5,000 |
| AC installation (replacement, high efficiency) | $5,000 – $7,500 |
| Tune-up (AC or furnace maintenance visit) | $80 – $200 |
What pushes a price toward the top of these ranges in Wells Branch is usually access: a condenser wedged between house and fence, an air handler in a hall closet with no clearance, or ductwork that needs adaptation to fit new equipment. The price you’re quoted is the price you pay, in writing, before any work begins. That’s The Kingswell Way, and it’s not negotiable.
Neighborhoods We Serve in Wells Branch
We work across the full Wells Branch area, from the older streets near Wells Branch Parkway to the newer pockets closer to the MUD boundaries. Most calls get a same-day or next-day appointment, and emergency AC calls in summer are routed immediately.
- Wells Branch MUD
- Willow Run
- Northwest Wells Branch
- The area along Shoreline Drive
- East Wells Branch near I-35
Service Area – Cities Near Wells Branch
Beyond Wells Branch, our technicians cover the surrounding metro. If you’re nearby, we likely serve your street too. See Austin, TX, Round Rock, TX, Pflugerville, TX, and Leander, TX.
Serving Wells Branch, TX - Our Local Coverage Area
We’re based in the Wells Branch 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 Wells Branch
Most non-emergency calls are scheduled same-day or next-day. During summer heat waves, we prioritize AC failures where the home is uninhabitable, and we route technicians from the nearest available dispatch. Call (361) 204-1605 and a live person will give you a firm arrival window, not a four-hour range.
Some Wells Branch subdivisions have deed restrictions on exterior equipment placement, particularly condenser location and screening. We’ll flag any obvious restriction before work starts and adjust placement or clearance accordingly. The written price you receive before installation already accounts for what we can see during the site visit.
We cover the full Wells Branch MUD and the surrounding streets. If you’re just outside the boundary, call anyway; the dispatch office will confirm coverage immediately and, if we can’t reach you, we’ll say so plainly rather than leave you waiting.
If your AC or furnace needs work in Wells Branch, call (361) 204-1605 for a free estimate. A live person answers, we show up when we say we will, and the price is in writing before the first tool comes out.
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 Wells Branch Customers Say
"Furnace wouldn't light the first cold morning. The guy walked me through what he was checking so I actually understood it. Replaced the igniter, wrote up the warranty, and it's been warm since."
- Alicia Romero"Thermostat kept losing its mind. He swapped it, showed me how to use the new one, and didn't charge for a bunch of extras. In and out, friendly, done."
- Paula Kingston"Replaced our old system. Good crew and a fair price. The install took most of a day which was longer than I expected, but they didn't cut corners and cleaned up everything."
- Kenny Barlow