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 Southlake, TX
Coldharbour Heating & Air is the local HVAC company Southlake homeowners call when a 5,000-square-foot home with three separate systems needs more than a quick patch. Most of our Southlake calls involve multi-zone repairs, full-system replacements, or redesigning airflow for homes built during the city’s 1995-2010 luxury construction boom. We’re independently owned and operated, dispatching from our Dallas-Fort Worth office with crews who know the difference between a Timarron original build and a newer custom home. Call us at (817) 402-2972 for a free estimate.
Why Southlake Homes Are Different
Southlake developed almost entirely in a compressed window between the mid-1990s and late 2000s, producing one of the wealthiest per-capita housing stocks in Texas. The typical home here runs 5,000 to 8,000-plus square feet with vaulted great rooms, finished bonus rooms, wine cellars, and casitas. Builders installed three or four separate HVAC systems per home, often with zone controls, and that entire housing stock is now hitting its first full replacement cycle simultaneously.
The practical effect on our work is significant. A single residential call in Southlake routinely involves retiring multiple aging units at once, recalculating loads for spaces that were originally sized loosely, and navigating HOAs with strict equipment-screening rules. Summer afternoons here regularly push past 100°F with meaningful humidity, forcing near-continuous runtime across those multi-system loads for months at a stretch. Winter Storm Uri in February 2021 caused widespread coil and refrigerant-line failures across Tarrant County, and many Southlake homeowners who lived through that event now ask us about dual-fuel hybrid heat pump systems.
The R-22 phaseout adds another layer. Neighborhoods like Timarron were built with 3-4 R-22 split systems per home; with those units now 25-plus years old and refrigerant no longer legally produced, replacement jobs often involve pulling multiple non-compliant legacy systems in one visit and redesigning the zoning layout. That scope demands a larger crew, more equipment on the truck, and a proposal process closer to light commercial than typical residential work.
Our Main Southlake Services
Most calls we get from Southlake fall into three categories: cooling repairs during the long North Texas summer, heating repairs when cold fronts drop temperatures fast, and full system replacements as that 1990s-2000s construction wave ages out.
AC Repair in Southlake
AC repair in Southlake usually means tracking down which of three or four systems is actually failing, then determining whether the issue is a bad capacitor, a refrigerant leak in aging R-22 lines, or a compressor giving out after 20-plus years of summer overload. We carry capacitors, contactors, and refrigerant on every truck, and our technicians are trained on Rheem, York, Daikin, Bryant, and five other major brands so we’re not ordering parts while your home heats up. AC Repair in Southlake
Furnace Repair in Southlake
Furnace repair here often involves igniter or flame-sensor failures in high-efficiency units that sit idle for most of the year, then get called into heavy use during sudden cold snaps. We also see cracked heat exchangers in original builder-grade furnaces that were never meant to last this long. Our technicians test carbon monoxide levels and combustion safety on every furnace call, and we explain what we find before any work begins. Furnace Repair in Southlake
AC Installation in Southlake
AC installation in Southlake is rarely a simple swap. We start with a Manual J load calculation for each zone, account for the original ductwork’s capacity, and present options that may include multi-stage or variable-speed equipment sized for these large homes. Many jobs involve retiring two to four systems at once, coordinating with HOA architectural committees, and staging the work to keep at least partial cooling running. AC Installation in Southlake
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 Southlake
Our technicians train continuously on nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, and control boards for Rheem, York, Daikin, and Bryant locally, which means most Southlake repairs don’t wait on a parts run. our brands
Pricing for HVAC Company in Southlake, TX
| Service | Typical range in Southlake |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes Southlake jobs toward the higher end: multiple systems per home, zoning controls that need reprogramming, and HOA-mandated equipment screens or pad requirements that add labor. On every job, we hand you a written price before any work begins, and that number does not change when the technician finishes. That’s The Kingswell Way, not a special offer.
Neighborhoods We Serve in Southlake
We respond to calls across Southlake’s full footprint, from established master-planned communities to newer custom builds on the city’s edges. Most Southlake appointments are scheduled within the same day or next day, with emergency calls prioritized when temperatures are dangerous.
- Timarron
- Carillon
- Shady Oaks
- Estes Park
- Kirkwood Hollow
Service Area – Cities Near Southlake
Our crews work throughout the Dallas-Fort Worth metroplex, with Southlake as a core service zone. We also take regular calls from Colleyville, TX, Grapevine, TX, Flower Mound, TX, and Roanoke, TX. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, with technicians routed to minimize drive time and keep arrival windows firm.
Serving Southlake, TX - Our Local Coverage Area
We’re based in the Southlake 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 Southlake
Same-day or next-day scheduling is standard for Southlake, and emergency calls jump to the front of the line when extreme heat or cold creates a health risk. Call (817) 402-2972 to check current availability.
Many Southlake neighborhoods have architectural review committees that must approve equipment location, screening, and sometimes color before installation begins. We handle the photo documentation and paperwork as part of our standard process.
The homes are larger, the systems are more numerous, and the replacement cycle is hitting all at once. A typical Southlake job involves more equipment, more crew hours, and more design work than a single-system home in Keller or Colleyville.
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 Southlake Customers Say
"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"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly