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 North Decatur, GA
North Decatur, GA sits in a pocket of DeKalb County where the homes were built for a different climate than the one we live in now. The ranch and split-level houses from the 1950s through the 1980s carry ductwork sized for shorter, milder summers. Today’s long, humid runs put real strain on compressors and coils, and that changes what a repair call actually involves. We’re Coldharbour Heating & Air, and we handle AC repair, furnace repair, and AC installation across North Decatur. Call (762) 240-5599 and a live person answers, any hour.
Why North Decatur Homes Are Different
North Decatur’s housing stock is predominantly single-family ranch and split-level homes built between the 1950s and 1980s. Many sit on crawlspaces or slabs, which complicates ductwork replacement and efficiency upgrades. The original ducts in these homes were sized for less humid times, so controlling indoor humidity is a defining challenge here. An air conditioner that cools well but doesn’t dehumidify leaves a house feeling clammy at 74 degrees. We see this all over North Decatur: systems that are technically cooling but not pulling moisture out of the air the way a properly matched system should.
The pine-heavy tree canopy in older North Decatur neighborhoods adds another layer. Every spring, pollen and pine straw collect on condenser coils, choking airflow. Homes tucked under mature hardwoods and pines need more frequent coil cleaning than houses in open-lot subdivisions a few miles away. When a unit runs restricted like that, head pressure climbs and compressors work harder than they were designed to. It’s a seasonal failure pattern we know to look for before it turns into a full breakdown.
Styles & brands we work with
Our Main North Decatur Services
Homeowners in North Decatur call us most often for cooling and heating repairs, plus full system replacements when a unit has reached the end of its useful life. Each service has its own dedicated page with pricing, timelines, and details specific to North Decatur homes.
AC Repair in North Decatur
Most AC repair calls in North Decatur happen between June and September, when systems are running twelve or more hours a day. We diagnose failed capacitors, refrigerant leaks, clogged condensate lines, and compressor issues, then hand you a written price before any tool comes out. On older ranch homes with long duct runs, we also check static pressure to make sure the system is moving air the way it should. If the repair is covered by our 365-Day Done Right Promise and something fails within the year, we return at no charge. AC Repair in North Decatur
Furnace Repair in North Decatur
North Decatur’s furnaces sit idle for most of the year, then fire up hard when the first cold snap drops in. That long idle period is when igniters, flame sensors, and gas valves quietly fail. We service gas furnaces, electric furnaces, and heat pumps, and when we find a failed part we quote a firm written price before starting the work. Crawlspace-furnace setups common in North Decatur add time, since access is often tight, but the pricing structure doesn’t change. Furnace Repair in North Decatur
AC Installation in North Decatur
Replacing an air conditioner in North Decatur means more than swapping boxes. The right project accounts for humidity, duct condition, and whether the home sits on a slab or crawlspace. We size each system with a load calculation, not a guess, and give you a fixed written price with a set install date before anything is ordered. Installations on North Decatur homes often include duct modifications to handle the moisture load our summers bring. AC Installation in North Decatur
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 North Decatur
Our technicians carry parts and training for Trane, Lennox, Goodman, and Rheem, among the major brands. If your existing system is one of those, we can typically diagnose and repair it the same visit. Our brands page lists the full range.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in North Decatur, GA
| Service | Typical range in North Decatur |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
In North Decatur, prices tend to climb when a repair involves crawlspace access, older ductwork that needs modification, or a system that has been running restricted for weeks because of pine debris on the coil. Whatever the job, you get the written price before we start. It does not change at the door.
Neighborhoods We Serve in North Decatur
We work across North Decatur and the surrounding DeKalb County communities, from quiet streets lined with mid-century ranches to neighborhoods tucked under heavy pine canopy. Our dispatch is coordinated from our Atlanta office, and crews serving North Decatur typically arrive within a scheduled two-hour window.
- Medlock Park
- Clairmont Heights
- Leafmore Hills
- Sagamore Hills
- Valley Brook Manor
Service Area – Cities Near North Decatur
We regularly serve homeowners just beyond North Decatur’s borders, too. If you’re in Marietta, GA, Roswell, GA, Woodstock, GA, or Dallas, GA, our technicians cover those communities with the same written pricing and 365-Day Done Right Promise.
Serving North Decatur, GA - Our Local Coverage Area
We’re based in the North 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 North Decatur
Same-day visits are available for most repair calls in North Decatur, especially when a system is down in extreme heat or cold. When you call (762) 240-5599, a live person answers and gives you a firm two-hour arrival window.
Most full system replacements in North Decatur require a mechanical permit through DeKalb County. We handle the permit paperwork as part of the installation, and our techs are trained to work to current code on every job.
Yes. A large share of North Decatur’s ranch and split-level homes sit on crawlspaces or slabs, and our technicians are familiar with the access constraints and duct routing those foundations create. The written price you receive accounts for that access before work starts.
If your air conditioner or furnace needs attention in North Decatur, call (762) 240-5599 for a free estimate. You’ll get a written price, a firm arrival window, and a guarantee that brings us back at no charge if a repair fails within 365 days.
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 North Decatur 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