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 Roswell, GA
Roswell sits in a humid subtropical climate where air conditioners run hard from May through September, and the housing stock swings from 19th-century homes near the Chattahoochee River to 1990s subdivisions with original HVAC systems now reaching the end of their service life. That combination means Roswell homeowners need an HVAC company that understands old ductwork, tight crawlspaces, pine-needle-clogged condensers, and the reality of replacing an obsolete R-22 system without wrecking a historic interior. Coldharbour Heating & Air handles all of it with a written price before any work begins and a 365-day guarantee on every repair. Call (762) 240-5599 any hour and a live person answers.
Why Roswell Homes Are Different
Roswell’s housing stock falls into two distinct camps, and each one brings its own set of HVAC challenges. The historic district along Canton Street and the neighborhoods near the Chattahoochee feature antebellum and early 20th-century homes where original plaster walls, pier-and-beam foundations, and narrow mechanical closets make modern HVAC work a careful exercise in fitting new equipment into old spaces without tearing out period features. In these homes we regularly run ductwork through tight crawlspaces and configure air handlers to work within closets that were never designed for them.
Then there are the large subdivisions built during Roswell’s 1980s and 1990s growth boom. Those homes often sit on slab foundations with attic-mounted systems, and many still run on R-22 refrigerant, which is no longer manufactured in the United States. A leaking R-22 system in a Roswell subdivision home is a common call, and the fix usually means either a costly retrofit or planning a full system replacement. Add in Roswell’s heavy tree canopy, which drops pine needles and pollen into outdoor condenser units every spring, and you have a city where AC maintenance is not optional. A condenser choked with pine needles runs hotter, works harder, and fails sooner. We see it constantly in communities like Martin’s Landing, Horseshoe Bend, and Crabapple.
Styles & brands we work with







Our Main Roswell Services
Most calls we take from Roswell homeowners fall into one of three categories: an air conditioner that stopped cooling in July, a furnace that will not fire in January, or a system that has reached the point where repair money is better spent on replacement. Each service has its own Roswell page with local pricing and details.
AC Repair in Roswell
When a Roswell AC quits in August, the issue is often a capacitor, a failed condenser fan motor, or a refrigerant leak made worse by a coil caked with pine pollen and cottonwood. Our technicians diagnose the problem, hand you a written price before any tool comes out, and most repairs are completed the same visit. We service major brands including Trane, Lennox, Goodman, and Rheem. Full details, including Roswell-specific pricing, are on our AC Repair in Roswell page.

Furnace Repair in Roswell
Roswell winters are mild but not gentle on neglected furnaces. A cold snap in January or February often exposes an igniter that has been failing quietly, a blower motor on its last legs, or a heat exchanger crack that needs immediate attention. In homes with crawlspace furnaces, we also see rodent damage to wiring and condensate lines. Every furnace repair includes our written 365-day guarantee. See the full breakdown on our Furnace Repair in Roswell page.

AC Installation in Roswell
Replacing an AC system in Roswell means choosing equipment suited to a long, humid cooling season and working around the realities of the home. For a 1990s subdivision house with an attic system, that might mean a straightforward swap. For a historic-district home, it often requires careful ductwork planning and an air handler placement that respects original architecture. Installation pricing is always fixed in writing before work begins. Learn more about AC Installation in Roswell, including system options and turnarounds.

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 Roswell
Our technicians are trained to service nine major residential HVAC brands, so the system already in your Roswell home is one we can work on. We carry common parts locally for Trane, Lennox, Goodman, and Rheem systems, which keeps repair turnaround short. See our brands for the full list.
See the difference
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AfterPricing for HVAC Company in Roswell, GA
These are the price ranges Roswell homeowners typically see for common HVAC jobs. Your written quote will be exact and handed to you before any work starts.
| Service | Typical range in Roswell |
|---|---|
| AC capacitor replacement | $150 – $350 |
| Refrigerant leak repair and recharge | $300 – $650 |
| Condenser fan motor replacement | $250 – $450 |
| Furnace igniter replacement | $150 – $280 |
| Furnace blower motor replacement | $350 – $700 |
| Flame sensor cleaning or replacement | $150 – $300 |
| Full AC system replacement | $3,500 – $7,500 |
| Heat pump replacement | $3,800 – $7,200 |
| Annual tune-up | $80 – $200 |
What pushes a Roswell job toward the top of a range is usually access. A furnace in a tight crawlspace or an air handler in a low-attic in a 1990s subdivision home adds labor time. A system replacement in a historic-district home may require custom duct transitions or extra line-set routing. Whatever the job, the price you are handed is the price you pay. We put it in writing before a single tool comes out, and it does not change at the door.
Neighborhoods We Serve in Roswell
We run calls throughout Roswell and know the quirks of each area, from the tight crawlspaces near Canton Street to the attic systems in east Roswell subdivisions. Response time across the city is typically same-day for AC emergencies during the cooling season and next-day for non-emergency calls.
- Historic Roswell and Canton Street
- Martin’s Landing
- Horseshoe Bend
- Crabapple
- East Roswell
Service Area – Cities Near Roswell
Our technicians also cover the surrounding north metro communities, including Woodstock, GA, Marietta, GA, Holly Springs, GA, and Kennesaw, GA. Dispatch and scheduling are coordinated from our Atlanta-area office, and crews serving Roswell are local to the corridor.
Serving Roswell, GA - Our Local Coverage Area
We’re based in the Roswell 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 Roswell
For AC emergencies during the cooling season, we typically arrive the same day. Roswell’s heavy summer AC load means we staff accordingly from May through September. Furnace repairs are usually next-day. Call (762) 240-5599 and a live person will give you a firm arrival window.
Most repairs do not require a permit. For a full system replacement, Roswell requires a mechanical permit, which we pull and handle as part of the installation. Some Roswell HOAs, particularly in master-planned communities, have equipment placement rules, and we coordinate with them so you do not have to.
We have configured systems for many older Roswell homes without gutting original walls. For pier-and-beam houses near the river, we often route ductwork through the crawlspace and use compact air handlers to fit the footprint. Call (762) 240-5599 for a walkthrough and a written estimate.
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 Roswell Customers Say
"AC quit on the hottest day of the year of course. Coldharbour had a tech out that evening, found a bad capacitor, and had us cool again within the hour. Charged the quote, not a penny more."
- Doug Feeney"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"Signed up for a tune up before summer. He found a part starting to fail and showed me the reading, didn't just tell me to trust him. Fixed it then so we wouldn't get stuck in July."
- Sophia Tran