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 Decatur, GA
Most HVAC calls we get in Decatur aren’t about broken equipment alone. They’re about equipment that was never designed for the house it’s in. Decatur’s housing stock, its humidity, and its relentless summer heat create a specific set of problems that technicians from outside the area often misdiagnose. Coldharbour Heating & Air has crews working Decatur daily, dispatched from our Atlanta office, and we know the difference between a failing compressor and a system that was simply too small from the day it was installed. If you need help now, call us at (817) 402-2972. A live person answers, 24 hours a day.
Why Decatur Homes Are Different
Decatur sits in Georgia’s Piedmont, where summer dewpoints routinely climb above 70°F and your AC runs almost nonstop from late May through September. That latent load, the moisture your system has to pull out of the air, matters as much as the temperature drop. In winter, ice storms sweep through the Atlanta metro without warning, and a heat pump sized for average January weather can leave you running expensive backup heat strips for days.
The real complication is the housing. Decatur’s most sought-after neighborhoods, Oakhurst, Winnona Park, and the blocks around the downtown square, are filled with 1920s-1940s Craftsman bungalows built decades before central air existed. Ductwork got threaded through vented crawl spaces later, and in this humidity those crawl spaces breed condensation, mold, and collapsed flex duct. We regularly pull into a driveway on Second Avenue or Madison Avenue and find a 2-ton system from a 1980s renovation trying to cool 2,500 square feet after a rear addition or garage conversion the HVAC was never upsized for. The permit got pulled at Decatur’s city building office, but the equipment didn’t get the memo.
Post-WWII ranch homes add another layer. Same retrofit problem, different era. And Decatur’s active renovation market means the square footage keeps growing while the mechanical systems lag behind.
Our Main Decatur Services
Decatur homeowners call us most often for these three jobs. Each has its own page with detailed pricing, common local problems, and what to expect when we arrive.
AC Repair in Decatur
AC repair in Decatur usually means one of three things: a refrigerant leak, a failed capacitor in the outdoor condenser, or a system that “can’t keep up” because it was undersized for a renovated home. We carry capacitors, contactors, and refrigerant on every truck, and our technicians are trained on nine major brands including Trane, Lennox, and Rheem. Most repairs are done in a single visit. AC Repair in Decatur covers typical costs, what we check first, and how our 365-Day Done Right Promise works on every repair.

Furnace Repair in Decatur
Decatur furnace calls spike after the first ice storm of the season, when heat pumps lock out and gas furnaces won’t ignite. We see a lot of failed igniters and dirty flame sensors in the older Lennox and Goodman units common here, plus heat pumps that have been running backup heat for days because the reversing valve stuck. Our trucks carry the most common igniters, sensors, and defrost boards for brands we service. Furnace Repair in Decatur has pricing, what to check before you call, and how we handle emergency no-heat calls.

AC Installation in Decatur
AC installation in Decatur is almost always a replacement of equipment that was never right for the house. We run a full Manual J load calculation, measure every room, account for the insulation in your crawl space and attic, and size for latent load, not just temperature. If your ductwork is rotting in a vented crawl space, we’ll tell you straight and price the remediation separately so you know exactly what you’re paying for. AC Installation in Decatur explains our fixed-price process, financing options, and how we handle permit paperwork with Decatur’s building office.

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 Decatur
Our technicians are trained to service and repair Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock capacitors, contactors, igniters, flame sensors, and refrigerant for the brands most common in Decatur, which means most repairs don’t wait on parts. our brands
Pricing for HVAC Company in Decatur, GA
| Service | Typical range in Decatur |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes prices toward the high end in Decatur: crawl-space ductwork that has to be repaired or replaced before new equipment can perform, refrigerant leaks in linesets buried under additions, and electrical upgrades for homes still running on fuses or undersized panels. We give you a written price before any work begins, and that price does not change when the technician is standing at your door. That’s The Kingswell Way, and it’s how we operate on every job.
Neighborhoods We Serve in Decatur
Our Decatur crews cover the full city and the unincorporated pockets just outside the limits. Most calls reach a technician within 45 minutes during business hours, and our 24-hour live dispatch means emergency calls don’t sit in a queue until morning.
- Oakhurst
- Winnona Park
- Downtown Decatur and the surrounding blocks
- Great Lakes
- Midway Woods
Service Area – Cities Near Decatur
We also serve homeowners in Scottdale, GA, Clarkston, GA, Stone Mountain, GA, and Tucker, GA. Dispatch and scheduling for all these areas are coordinated from our Atlanta office, with local crews assigned to each call based on who’s closest and available.
Serving Decatur, GA - Our Local Coverage Area
We’re based in the Decatur 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 Decatur
Most Decatur emergency calls reach a technician within 45 minutes during the day, and our phones are answered by a live person 24 hours a day, 7 days a week. Nights and weekends use the same dispatch system, not an answering service that calls back in the morning. Call (817) 402-2972 and we’ll give you a firm arrival window.
Yes. Decatur’s city building office requires permits for system replacements, new ductwork, and any gas-line modification. We pull the permit, schedule the inspection, and handle the paperwork as part of our installation process. You won’t need to visit city hall or coordinate with an inspector yourself.
We do. Several Decatur neighborhoods, especially in Oakhurst and Winnona Park, have architectural review boards or HOAs that require notice for outdoor equipment changes. We provide the equipment specifications, noise ratings, and placement drawings they typically need, and we coordinate our install date with any required approvals so the job doesn’t get delayed after we’re on site.
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 Decatur Customers Say
"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"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







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