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 Keene, TX
Coldharbour Heating & Air handles AC repair, furnace repair, and new AC installation for homeowners and institutions across Keene, with most repair calls answered by a live person and scheduled same day or next day. Our technicians are trained on Goodman, Rheem, York, and Daikin systems, and every repair comes with a written 365-Day Done Right Promise. Dispatch for Keene runs through our Dallas-Fort Worth office, but the crew that arrives knows this market: mid-century homes with aging ductwork, the Southwestern Adventist University campus, and summers that punish any system running low on refrigerant. Call us at (817) 402-2972 when you need a firm arrival window and a price in writing before the work starts.
Why Keene Homes Are Different
Keene is not a typical Johnson County suburb. It’s an unusually compact, planned Seventh-day Adventist community anchored by Southwestern Adventist University, which means we’re working on two very different building stocks in the same ZIP code. The residential side is dominated by modest mid-20th-century homes built as the Adventist community grew around the campus. Many of these houses are now hitting the end-of-life window for original ductwork, air handlers, and early-generation central cooling systems all at once. Crawlspace and slab-on-grade construction from that era often hides deteriorated flex duct and undersized return plenums that were never upgraded when the original equipment was swapped out.
On the institutional side, the university campus and its cluster of church and school buildings present a service gap most small-town residential shops never developed. Older institutional buildings here use a patchwork of unit ventilators and packaged rooftop units installed across decades of deferred capital budgets. Diagnosing refrigerant cross-contamination and mismatched controls on those systems takes commercial skills that simply aren’t needed in neighboring Cleburne or Burleson.
Climate makes the technical stakes higher. Johnson County summers push 100-104°F with humidity that makes sensible-heat cooling alone insufficient. A refrigerant charge error or an undersized replacement unit that might skate by elsewhere shows up immediately here. Winter Storm Uri in February 2021 exposed another vulnerability: heat pumps and poorly insulated air handlers faced sustained sub-freezing temperatures they were never designed for, and we’ve been handling freeze-protection retrofits ever since.
Our Main Keene Services
Most calls we get from Keene fall into three categories: cooling repairs during the summer push, heating repairs when a furnace fails on the first cold night, and full system replacement when mid-century equipment finally gives out. Each has its own dedicated page with deeper detail.
AC Repair in Keene
AC repair in Keene runs the gamut from simple capacitor replacements on residential split systems to tracking down refrigerant leaks in aging Goodman and Rheem units that have been topped off one too many times. The university’s older buildings bring us cross-contaminated lines and failed TXVs (thermostatic expansion valves that meter refrigerant flow) that most residential-only contractors won’t touch. We stock common capacitors, contactors, and refrigerant so most residential calls are wrapped in a single trip. AC Repair in Keene covers typical failures, pricing, and what to check before you call.

Furnace Repair in Keene
Furnace repair in Keene means working on everything from 90%-efficiency gas furnaces in newer construction to standing-pilot units still running in older Adventist-community homes. Post-Uri, we’re also seeing heat pumps that need auxiliary heat sequencing corrected and outdoor coils protected against freeze damage. Igniter failures, limit switch trips, and blower motor bearings are the usual winter culprits. We carry replacement igniters, flame sensors, and blower motors for the major brands, and we test heat exchangers with a combustion analyzer on every gas furnace call. Furnace Repair in Keene has the full breakdown.

AC Installation in Keene
AC installation in Keene requires honest load calculation, especially on those mid-century homes where original ductwork was sized for a fraction of today’s cooling demand. We see too many systems replaced with oversized equipment that short-cycles and fails to dehumidify, or undersized units that never catch up in July. Our process starts with a Manual J load calculation, a written fixed price, and a scheduled install date with no same-day rush. We handle rebate and financing paperwork, and we warranty both the equipment and our labor. AC Installation in Keene explains the full process.

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 Keene
Our technicians train on nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock capacitors, contactors, igniters, and refrigerant for Goodman, Rheem, York, and Daikin systems locally, which keeps most Keene repair calls to a single visit. See our brands for the complete list and parts availability.
Pricing for HVAC Company in Keene, TX
| Service | Typical range in Keene |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes Keene jobs toward the higher end: buried ductwork in slab or crawlspace construction that has to be accessed or bypassed, commercial-grade equipment on the university campus with harder-to-source controls, and post-Uri freeze-damage repairs that involve multiple components. What keeps them toward the lower end: straightforward part swaps on residential split systems with good access. Either way, the written price we hand you before any work begins is the price you pay. That’s The Kingswell Way, not a negotiable policy.
Neighborhoods We Serve in Keene
Keene is compact enough that our response time is consistent across the city, usually same day for repair calls placed before early afternoon. We work in the residential blocks around the university, the older Adventist-community homes near the city center, and the newer construction on the edges.
- University Park area
- Central Keene / Old Town
- Keene Heights
- Chisholm Trail corridor
- Campus-adjacent institutional properties
Service Area – Cities Near Keene
Our crews cover Johnson County and the southern Dallas-Fort Worth metro from the same dispatch base that handles Keene. If you’re just outside city limits or in a neighboring town, we likely still serve your address. We regularly run calls to Cleburne, TX, Joshua, TX, Alvarado, TX, and Burleson, TX, with the same live-answer phones and written guarantees that Keene homeowners get.
Serving Keene, TX - Our Local Coverage Area
We’re based in the Keene 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 Keene
Most repair calls from Keene are scheduled same day if you reach us before early afternoon, and next day for calls placed later. Our phones are answered by a live person 24 hours a day, 7 days a week, including holidays. After-hours emergency calls are dispatched to the on-call technician immediately, not held until morning.
Yes, the City of Keene requires permits for full system replacements and new ductwork installations. We pull the permit as part of our installation process and schedule the required inspection so you don’t have to coordinate with the city yourself. The permit cost is included in your written fixed price, not added at the end.
Yes, we handle both the residential and institutional sides of Keene, including the university’s older buildings with their mixed-era rooftop units and unit ventilators. That commercial-institutional work is a genuine service gap in Johnson County, and it’s part of what makes Keene different from a standard residential-only market. Call (817) 402-2972 to discuss campus service needs or to schedule a free estimate for any residential or institutional HVAC work in Keene.
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 Keene 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"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







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