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.
Fast, Reliable Furnace Repair Across Old Greenwich
When your furnace quits on a January night and the temperature inside your Old Greenwich home starts falling fast, you need someone who knows the difference between a quick fix and a real repair. Most furnace failures in this part of Fairfield County trace back to a handful of predictable problems, and our Furnace Repair team has handled them in cottages off Sound Beach Avenue, colonials near Greenwich Point, and the pre-war homes that line the village’s quieter streets. We dispatch from our Hartford office and route crews directly to Old Greenwich, typically arriving within the hour for calls that come in during business hours and within two hours for after-hours emergencies. Call (984) 538-9003 and you’ll reach a live person, not a recording, who can tell you exactly when to expect us and send you the name and photo of the technician we’re sending.
The homes here carry a particular history. Many started as summer retreats in the 1920s and 1930s, built for Long Island Sound breezes rather than deep winter cold. When they were converted to year-round living, heating systems were adapted rather than replaced wholesale. That means our technicians regularly encounter oil-to-gas conversions, original boiler piping still in service, and furnaces squeezed into spaces never designed for them. We know what to look for, and we know how to fix it without creating new problems.
Why Brandt HVAC Is Old Greenwich’s Preferred Furnace Repair Company
We’ve been part of the Threshold Group family since 2003, and our approach to serving Old Greenwich hasn’t changed: show up when we say we will, tell you the price before we touch a tool, and guarantee the work for a full year. Our 365-Day Done Right Promise means if a repair fails, we come back free of charge. No argument, no additional fee.
Every technician we send to Old Greenwich meets the Threshold Verified standard. That means background-checked, identity-verified, and introduced to you by name and photo before arrival. They arrive in uniform with a photo ID badge. If someone shows up at your door who you weren’t told to expect, that visit is on us and we make it right. For homeowners who are home alone, parents with young children, or older residents in neighborhoods near Binney Park, this matters.
Our phones are answered by a live person 24 hours a day, 7 days a week. Nights, weekends, holidays. No voicemail, no callback queue, no automated phone trees pressing you to describe your emergency to a robot. When your furnace goes out at 11 p.m. on a Sunday in January, you talk to a human who can dispatch help.
Gas Furnace Repair in Old Greenwich
Gas Furnace Repair in Old Greenwich covers everything from failed ignitors and cracked heat exchangers to gas valve malfunctions and blower motor burnout. Most repairs we complete in Old Greenwich run between $150 and $700, with simpler fixes like ignitor replacements on the lower end and heat exchanger work or gas valve replacement toward the higher end. We always provide a written price before any work starts, and that price includes parts, labor, and our 365-day guarantee.
When the Burner Won’t Light
A gas furnace that won’t fire usually points to a failed hot surface ignitor or a dirty flame sensor. In the humid, salt-laden air off Long Island Sound, corrosion builds faster than it does just a few miles inland in Stamford or White Plains. We’ve replaced ignitors in homes near Shore Road where the part failed in four years rather than the expected ten, simply because the coastal environment accelerates wear. We stock ignitors for Goodman, Rheem, Lennox, and Trane units commonly found in Old Greenwich homes, so most same-day repairs don’t wait on parts.
Heat Exchanger Safety Checks
A cracked heat exchanger is the repair we take most seriously. It can allow carbon monoxide into your home’s air, and we won’t patch it or look the other way. If we find a crack, we show you exactly where it is, explain your options clearly, and give you a written price for replacement. This is non-negotiable for us, and it shouldn’t be negotiable for any technician you invite into your home.
Furnace Tune Up in Old Greenwich
Furnace Tune Up in Old Greenwich is preventive maintenance designed to catch problems before they leave you without heat on the coldest night of the year. We recommend scheduling one every fall, before the heating season starts in earnest. A tune-up from Brandt HVAC runs $80 to $200, depending on the system age and what we find when we open it up. You receive a written report of every component we inspected, every measurement we took, and any repairs we recommend, with prices attached. Our technicians are not paid on commission, so there’s no incentive to sell you work you don’t need.
What the Visit Includes
We clean the burner assembly, check the heat exchanger with a camera scope, test the gas pressure and flame signal, inspect the blower motor and belt, and verify your thermostat calibration. In Old Greenwich’s coastal environment, we also pay special attention to corrosion on electrical connections and the condensate drain, both of which fail prematurely when salt air gets into the system.
Written Documentation You Keep
Every tune-up ends with a written report you can reference, show to a home inspector, or use to document maintenance for warranty purposes. If your furnace is still under manufacturer’s warranty, annual professional maintenance is usually required to keep that coverage valid. We note the date, the work performed, and the technician’s signature.
Trusted Brands We Service in Old Greenwich
We repair and maintain all major residential furnace brands, and we carry common parts for Rheem, Lennox, Goodman, and Trane systems on our trucks. That inventory matters in Old Greenwich, where many homes run older furnaces that manufacturers have stopped supporting with local distribution. When a part isn’t on the truck, our Hartford office coordinates same-day or next-morning pickup from regional suppliers, so you’re rarely waiting more than 24 hours for a repair that requires a special order. We also service Carrier, York, Daikin, Bryant, and American Standard equipment. If you’re unsure what brand you have, the nameplate is usually visible on the inside of the front access panel, and our technician can identify it immediately on arrival.
Common Furnace Repair Problems We See in Old Greenwich Homes
- Short cycling from oversized equipment. Many Old Greenwich cottages and Cape Cods were originally heated with small coal or oil boilers. When converted to gas forced-air, installers sometimes specified furnaces too large for the space, causing rapid on-off cycling that wears components and wastes fuel.
- Corroded flame sensors and ignitors. The salt air off Long Island Sound accelerates corrosion on any exposed metal. We replace flame sensors that have failed after just two or three seasons in waterfront homes near Sound Beach Avenue or Greenwich Point.
- Clogged condensate drains in high-efficiency units. Modern condensing furnaces produce acidic water that must drain properly. In older homes with original drainage systems, we’ve found condensate lines that freeze in uninsulated crawl spaces or clog with sediment from aging pipes.
- Failed blower motors in tight installations. Furnaces retrofitted into spaces never designed for forced-air systems often lack adequate airflow around the cabinet. Overheating shortens blower motor life, and replacement requires careful measurement to fit a properly sized unit in the constrained space.
Pricing for Furnace Repair in Old Greenwich, CT
Most furnace repairs we complete in Old Greenwich fall between $150 and $700. An ignitor replacement typically runs $150 – $300, parts and labor included. Blower motor repair or replacement ranges $300 – $600 depending on whether it’s a standard or variable-speed unit. Gas valve work and heat exchanger repairs sit at the higher end, up to $700, reflecting the part cost and the safety-critical nature of the work.
What moves a job toward the higher end? System age, part availability, and access difficulty. A furnace tucked into a cramped 1920s closet with no service clearance takes longer to open and repair safely. We tell you exactly where your job falls before we start, and we don’t begin work until you’ve seen and approved the written price.
Estimates are free. Call (984) 538-9003 to schedule.
We Also Serve Cities Near Old Greenwich
Our crews work throughout Fairfield County, and we regularly route from Old Greenwich to neighboring Old Greenwich calls in Riverside, Cos Cob, Stamford, and central Greenwich. If you live just outside the village line, the same Threshold Verified technicians, same upfront pricing, and same 365-Day Done Right Promise apply. We also handle AC Maintenance in Old Greenwich and AC Repair in Old Greenwich for homeowners who want one trusted company for both heating and cooling.
Serving Old Greenwich, CT - Our Local Coverage Area
We’re based in the Old Greenwich 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 Old Greenwich
We typically arrive within one hour for calls placed during business hours, and within two hours for after-hours emergencies. Our Hartford office dispatches crews directly to Old Greenwich, and we confirm your technician’s name, photo, and estimated arrival before they leave.
Yes. We repair furnaces throughout the village, from Sound Beach Avenue and the Shore Road corridor to the blocks near Greenwich Point and Binney Park. Homes in FEMA flood zones near the Sound sometimes have equipment mounted on elevated platforms, and our technicians are familiar with those installations.
Yes. A live person answers our phones 24 hours a day, 7 days a week, including holidays. We do not use voicemail or automated callback systems for heating emergencies. When temperatures drop below freezing, a failed furnace is a health and safety issue, and we treat it that way.
Our pricing is consistent across our service area. A typical repair in Old Greenwich runs the same $150 – $700 range you’d pay in Riverside, Cos Cob, or Stamford. The specific cost depends on the part and the labor required, not your zip code. Call (984) 538-9003 for a free estimate.
Every repair includes our 365-Day Done Right Promise in writing. If the same component fails within 365 days of our repair, we return and fix it again at no charge. No argument, no additional fee. The guarantee is printed on your invoice, and you can reference it anytime by calling our office.
Written by Devin Marlowe, Owner at Brandt HVAC, serving Old Greenwich and Fairfield County homeowners since 2003.







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