Furnace & heating
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 estimateFast, Reliable Furnace Repair Across Garden City
Furnace repair in Garden City typically costs between $150 and $700, and most no-heat calls we handle in the village are diagnosed the same day. If your home near Stewart Avenue or the Cathedral of the Incarnation won’t hold temperature, call (845) 328-4955 and a live person answers, day or night. Garden City’s older housing stock means furnace problems here don’t look like problems in newer subdivisions. We know the difference because we work in these homes every week.
We serve the whole village, from the streets around Nassau Boulevard up to the 11530 ZIP code’s northern edge. Our Furnace Repair team carries parts for the furnaces most common in Garden City colonials and ranches, so we aren’t driving back to a supply house twice before the heat comes on. You get a written price before any work starts, and the technician’s name and photo arrives on your phone before they do.
Why Brandt HVAC Co Queens Is Garden City’s Preferred Furnace Repair Company
We built our reputation in Garden City on showing up when we say we will and telling homeowners the truth, even when the truth is that a repair isn’t worth making on a 40-year-old furnace. Our lead technician, Devin Marlowe, has crawled through more Garden City basements with original cast-iron radiators than most contractors see in a decade. That matters when the difference between a $200 fix and a $4,000 mistake is knowing which pipe does what.
Our crews are background-checked, uniformed, and identity-verified under the Threshold Verified standard. Before any visit, you receive the technician’s name and photo. At the door, they show a photo ID badge. If someone shows up who you weren’t told to expect, that visit is on us. For homeowners who are alone during the day, or parents with young children at home, that kind of certainty is why they choose Brandt.
Every repair comes with the 365-Day Done Right Promise. If the repair fails within a year, we return at no charge. No argument, no second invoice, no “that issue is different.” Written guarantee on every job, with a written price agreed to before we open a single panel.
Styles & brands we work with






Boiler Repair in Garden City
Boiler repair in Garden City is a different trade than furnace work, and homeowners pay the price when a tech treats a steam boiler like a forced-air furnace. Many of the village’s 1920s and 1930s colonials still run on original steam or hot-water systems with cast-iron radiators and pipes that have been in place for nearly a century. A boiler repair here typically runs $150 to $700, depending on whether the problem is a faulty steam vent, a circulator pump, or the burner assembly itself.
Steam Vent Diagnosis
When a Garden City colonial won’t heat evenly, a faulty steam vent is often the culprit, not the boiler. A technician unfamiliar with hydronic systems misdiagnoses this as a furnace problem, and the homeowner pays for a fix that doesn’t change anything. We check vent operation, radiator slope, and pressure settings before recommending any work.
Cast-Iron System Integrity
Original cast-iron pipes and radiators hold heat beautifully, but they hide sediment and corrosion. If your boiler short-cycles or bangs when it fires, you may have a water chemistry issue or a failing expansion tank. We test water pH and pressure in the same visit, because replacing a boiler without addressing the water will shorten its life by years.
Gas Furnace Repair in Garden City
Gas furnace repair in Garden City often involves systems retrofitted into homes that were never designed for forced air. A typical repair runs $150 to $700, with ignitor replacements on the lower end and gas valve replacements at the higher end. Many local furnaces are Goodman, Rheem, or Lennox units installed during a renovation, tucked into tight basement corners where the original gravity ducts still snake overhead.
Ignitor and Flame Sensor Work
When a gas furnace clicks but won’t light, the ignitor is the usual suspect. Garden City’s humid air accelerates corrosion on flame sensors, especially in basements that stay damp year-round. We stock ignitors and sensors for major brands, so most repairs from the North End to the Mott Section are completed in a single trip.
Gas Valve and Safety Checks
A gas valve that sticks open or closed is a safety issue, not just a comfort problem. If you smell gas or your carbon monoxide detector alarms, leave the house and call the utility first. For routine gas valve replacement, we verify gas pressure at the manifold, test all safety switches, and document the readings on your written report.
Trusted Brands We Service in Garden City
We service and repair all major residential HVAC brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Garden City customers, that means we don’t push a replacement just because a particular brand’s parts are hard to source. Our trucks carry common parts for Rheem and Goodman units that dominate the mid-century split-levels south of the railroad tracks, and we can have York and Lennox components in hand within a day when a specialty part is needed.
Common Furnace Repair Problems We See in Garden City Homes
- Short-cycling in colonials with oversized furnaces. Many 1930s homes near the Cathedral of the Incarnation had furnaces replaced by contractors who sized the unit by square footage alone, ignoring high ceilings and plaster walls. The result is a furnace that fires, overheats, and shuts down before rooms reach the set temperature.
- Salt-air corrosion on condenser coils. Homes within a few miles of the South Shore deal with Atlantic salt air that eats at unprotected aluminum fins. By the time a homeowner notices poor heat output, the coil has often lost a third of its surface area.
- Asbestos-wrapped gravity ducts in pre-war basements. Many Garden City colonials still have original gravity hot-air systems with massive ducts wrapped in asbestos. Any furnace repair near those ducts must respect that material. We do not disturb it, and we flag it clearly on your written report.
- Static pressure problems on high-velocity retrofits. When a colonial with radiators gets a high-velocity mini-split retrofit, the duct design is often undersized. Ignoring static pressure produces noisy operation and uneven heat in the split-level addition. We measure it on every repair visit.
See the difference
Before
After
Before
After
Before
AfterPricing for Furnace Repair in Garden City, NY
Here’s the honest pricing picture for Garden City. A standard furnace repair runs $150 to $700, parts and labor included. Most ignitor replacements land between $150 and $300. Gas valve replacements run higher, usually $400 to $700, because the part alone is expensive. Boiler repairs track the same range, with steam vent replacement on the lower end and circulator pump replacement on the higher end.
| Service | Typical Range (Parts & Labor) |
|---|---|
| Furnace Repair | $150 – $700 |
| Boiler Repair | $150 – $700 |
| Gas Furnace Repair | $150 – $700 |
You’ll see the exact number in writing before any work begins. Estimates are free. Call (845) 328-4955 and we’ll give you a firm price for your Garden City home, not a range that balloons when the tech arrives.
We Also Serve Cities Near Garden City
Our Garden City customers come from every part of the village, and we also handle furnace repair in Mineola, New Hyde Park, Franklin Square, and West Hempstead. If you’re a few minutes over the village line, call us. The same technician who knows Garden City’s housing stock knows those streets too.
Serving Garden City, NY - Our Local Coverage Area
We’re based in the Garden City 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 Furnace Repair in Garden City
Short-cycling in Garden City is usually caused by an oversized furnace, a failing capacitor, or a clogged air filter, and a typical diagnosis runs $150 to $700. Larger 1920s and 1930s colonials were often fitted with furnaces sized by rough square footage without accounting for high ceilings and uninsulated plaster walls. The fix may be as simple as a capacitor, or it may require adjusting fan speeds and gas pressure. Call (845) 328-4955 and we’ll pinpoint it.
Yes. We repair furnaces in Garden City homes with asbestos-wrapped gravity ducts regularly, and we work around that material without breaking its seal. Our rule is simple: we do not cut, drill, or remove asbestos-wrapped ducting. If the repair requires work adjacent to it, we flag it on your written report and discuss options before proceeding. At a 1929 colonial near the Cathedral of the Incarnation, our tech found a Carrier furnace short-cycling due to a failed capacitor and corroded condenser coil from salt air. We replaced the capacitor, cleaned the coil, and verified proper static pressure, then confirmed the original asbestos-wrapped gravity ducts were undisturbed.
Atlantic salt air corrodes condenser coils faster in Garden City than in inland Long Island towns, and the damage often goes unnoticed until refrigerant charge drops and the system freezes up. If your home sits within a few miles of the South Shore, we recommend an annual coil inspection. A corroded coil that fails mid-winter costs more to replace than one caught in November. Estimates are free, so call (845) 328-4955 to schedule a check.
Yes, high-velocity mini-splits are often the best retrofit option for Garden City colonials with radiators, because they avoid the architectural disruption of standard ductwork and respect the village’s strict building codes and aesthetic review. The challenge is that high-velocity systems require precise static pressure balancing. When it’s off, rooms heat unevenly and the system runs loud. We commission every retrofit we touch, measuring airflow at each outlet and documenting it in writing.
A commissioning report from Brandt HVAC includes written documentation of gas pressure, temperature rise, static pressure, and safety switch verification, plus a plain-language summary of what we found and what we fixed. It’s not a checkbox form. It’s the proof that your furnace is doing what the manufacturer promised, not just blowing warm air. Every repair we complete in Garden City includes this report at no extra charge.
Call Brandt HVAC Co Queens for Furnace Repair in Garden City
If your heat is out on a January night with a teen wind blowing down Franklin Avenue, you don’t want a voicemail. You want a person. Call (845) 328-4955 and a live person answers, 24 hours a day, every day. You’ll get a written price before any work starts, a technician’s name and photo before they arrive, and a written guarantee on every repair we make. Devin Marlowe and the team know Garden City’s furnaces, boilers, and basements better than anyone. Call now for a free estimate.
Written by Devin Marlowe, Owner at Brandt HVAC Co Queens, serving Garden City and the surrounding Nassau County communities.