Furnace Repair in Dunwoody - On-Site Today, Diagnosis First

Fast, Reliable Furnace Repair Across Dunwoody

When your furnace quits during a Dunwoody cold snap, you need a fix fast and a price you can trust. Furnace repair in Dunwoody typically costs $150 – $700, and our crews respond quickly to homes across the area, from Dunwoody North to the neighborhoods off Mt. Vernon Road. We know the houses here, the ductwork quirks, the electrical panels, and the exact failure patterns that show up in 1970s and 80s construction. Call (478) 606-5046 and a live person answers, 24 hours a day, every day.

Call (478) 606-5046

Why Meadowsweet Heating and Air Alpharetta Is Dunwoody’s Preferred Furnace Repair Company

Dunwoody homeowners call us because we fix the actual problem, not just the obvious symptom. In older neighborhoods like Dunwoody North, Winters Chapel, and the streets branching off Mt. Vernon Road, a furnace that won’t heat evenly is often blamed on the unit itself. More often, we find the real culprit in the crawlspace: original round metal ducts rusted through and leaking conditioned air before it ever reaches the bedrooms. That kind of diagnosis takes time and local experience, and it’s what separates a quick parts swap from a lasting repair.

Our Furnace Repair team includes background-checked, uniformed technicians who follow our C.A.R.E. values code on every visit: Clean up like it’s their own home, Ask before moving anything, Respect the family’s time and quiet hours, and Explain the price before the work. Shoe covers and drop cloths go down before tools come out. Before we leave, we photograph the clean-up so you can see the space is exactly as we found it, minus the furnace problem.

Luis Serrano leads our crew with a simple standard: every Dunwoody job gets a written price before any work starts, and every repair is backed by the 365-Day Done Right Promise. If something isn’t right, we come back and make it right. No runarounds, no fine print. We service Carrier, Trane, Lennox, and Goodman systems, among others, and we keep common parts stocked for fast turnaround in Dunwoody.

Furnace Maintenance in Dunwoody

Furnace Maintenance in Dunwoody runs $80 – $200 and is the single best way to avoid a mid-January breakdown in a house with original 1980s ductwork. A tune-up here isn’t just a filter change: we inspect the heat exchanger for cracks, test the ignitor, measure static pressure, and check the blower motor’s amp draw against its rating. In Dunwoody’s older homes, that static pressure reading often tells us more about hidden duct leaks than the furnace itself.

Seasonal Inspections Before Cold Weather

Georgia winters are mild most of the time, but the cold snaps that do arrive hit furnaces that have sat idle for months. We recommend a maintenance visit in October or November, before the first hard freeze. It gives us time to order parts if we find a weakening ignitor or a blower motor running out of spec, rather than leaving you without heat on the coldest night of the year.

Protecting Floors and Air Quality During Service

Every visit includes drop cloths in the work area and shoe covers at the door. If your furnace sits in a closet near kids’ rooms or a play area, we keep tools organized and noise down where we can. The goal is a furnace that runs cleanly and quietly, and a house that looks like we were never there except for the working heat.

Heat Pump Repair in Dunwoody

Heat Pump Repair in Dunwoody typically costs $150 – $650 and covers everything from reversing valve failures to refrigerant leaks and defrost control boards. Many Dunwoody homes, especially those built in the 1970s and 80s, rely on heat pumps for both heating and cooling. When winter temperatures dip below freezing, a heat pump has to work harder to pull heat from cold outdoor air, and any underlying weakness shows up fast.

Defrost Cycle Failures in Humid Winters

Dunwoody’s winter air carries real moisture, and that moisture freezes on outdoor coils during cold snaps. A healthy heat pump cycles through defrost to melt that ice. When the defrost sensor or control board fails, ice builds up, airflow drops, and the system strains. We test the full defrost sequence during every heat pump repair call, not just the part that triggered the service.

Reversing Valve and Refrigerant Checks

A heat pump that blows cold air in heating mode often points to a stuck reversing valve or low refrigerant. We measure refrigerant pressures and subcooling against manufacturer specs, not generic charts. On older Dunwoody systems running R-22, we’ll talk through options honestly, including what a replacement would cost if the leak is in the coil rather than a simple fitting.

Trusted Brands We Service in Dunwoody

We work on nine major equipment brands, and in Dunwoody we most often see Carrier, Trane, Lennox, and Goodman systems in the field, with a healthy share of Rheem and York units in older homes. That matters because each brand has its own failure patterns, its own board diagnostics, and its own parts. We keep common ignitors, flame sensors, pressure switches, and blower motors stocked for fast turnaround, so a Dunwoody repair call doesn’t stretch into a two-trip ordeal.

Common Furnace Repair Problems We See in Dunwoody Homes

• Rusted original round metal ducts in crawlspaces. In homes off Mt. Vernon Road built in the late 1970s, we regularly find ductwork rusted through from decades of crawlspace humidity. These leaks can quietly waste up to 30% of the air your furnace heats, which makes a perfectly good furnace look like it’s failing.
• Single-zone systems on unbalanced floor plans. Older Dunwoody ranches and split-levels often have one thermostat for the whole house. Bedrooms at the far end of a long duct run get cold while the living room roasts, and the furnace gets blamed for a duct design problem.
• Electrical panels that trip during cold snaps. Newer high-efficiency furnaces with ECM blower motors draw differently than the old PSC motors they replace. In some 1970s and 80s Dunwoody homes, an aging breaker or undersized panel circuit trips right when the furnace works hardest.
• Heat exchangers with hairline cracks. The mild Georgia climate means furnaces cycle on and off frequently, which causes repeated expansion and contraction. Over 20 or 30 years, that thermal cycling can crack a heat exchanger. If we find one, we shut the system down and show you the crack before we discuss repair or replacement.

Pricing for Furnace Repair in Dunwoody, GA

Why a Like-for-Like Furnace Swap Often Disappoints in Older Dunwoody Homes

In Dunwoody’s older neighborhoods off Mt. Vernon Road, original round metal ducts in crawlspaces are often rusted through, silently leaking up to 30% of conditioned air. That failure mode only becomes visible during a furnace repair call, when static pressure readings and heat exchanger inspections reveal why a like-for-like swap still leaves rooms cold. If you replace a 1980s furnace with a new unit of the same capacity but don’t fix the leaks, you’re paying to heat a crawlspace.

We recently repaired a 1979 furnace in the Dunwoody North subdivision where the homeowner reported uneven heat, some rooms roasting, others freezing. Our tech found a rusted-out section of original round metal duct in the crawlspace and a blower motor that had been fighting high static pressure for years. After patching the duct, calibrating the thermostat, and checking the heat exchanger for cracks, we restored even airflow without replacing the furnace. That’s the difference between a parts swap and an actual fix.

Single-zone systems on those unbalanced 1970s floor plans create the same illusion. A thermostat in the hallway reads 70 degrees while a back bedroom sits at 62. The furnace isn’t broken; it’s doing exactly what it’s told by the only sensor it has. We can discuss zoning options, dampers, or duct modifications if the temperature spread is wide enough to matter. And in homes where the electrical panel predates modern building codes, a high-efficiency furnace may need a dedicated circuit or panel upgrade before installation. We’ll tell you that before you spend money, not after.

We Also Serve Cities Near Dunwoody

Our crews serve Dunwoody and the surrounding communities every day. If you’re in Alpharetta, Johns Creek, Lawrenceville, or Canton, the same written pricing, C.A.R.E. values, and 365-Day Done Right Promise apply. Call (478) 606-5046 and we’ll get someone out to you.

FAQs About Furnace Repair in Dunwoody