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

Fast, Reliable Furnace Repair Across Miami

Most furnace repairs in Miami cost between $175 and $825, and our Furnace Repair team can usually diagnose the problem and present a written price the same day you call. We answer the phone live, 24 hours a day, from our Miami scheduling office, and we send you your technician’s name and photo before they arrive.

Call (984) 538-9003

We’re familiar with the heating systems in Little Havana, Hialeah, Opa-locka, and throughout Miami-Dade. The concrete block homes built from the 1950s through the 1970s, the salt air coming off Biscayne Bay, and the 140°F attics that bake control wiring every summer – we’ve worked on all of it. If your gas furnace is short-cycling, your boiler is knocking, or you’re getting cold air when you asked for warm, call us at (984) 538-9003. A live person will answer, and we’ll get someone to your door with a clear price in writing before any work starts.

Why Brandt HVAC Is Miami’s Preferred Furnace Repair Company

Brandt comes from an old word for firebrand, and keeping Miami homes warm is still the work we do. We’ve built our reputation here on certainty, not surprises. Every technician is background-checked and identity-verified through our Threshold Verified standard. You get their name and photo before they arrive, and they show a photo ID badge at your door. If anyone shows up who you weren’t told to expect, that visit is on us.

Our Miami customers tell us the same thing: they want to know exactly who is walking through their door. Parents with young children, older homeowners, people home alone during the day – they choose us because we eliminate that uncertainty entirely. Calls are answered by a live person, 24/7, with no voicemail queues or phone trees. Every repair comes with a written guarantee under our 365-Day Done Right Promise: if the repair fails, we return at no charge.

Dispatch and scheduling are coordinated from our Miami office, and crews serve neighborhoods across the metro with local parts on the truck for Trane, Lennox, Goodman, and Rheem systems. That means faster repairs and fewer return trips.

Boiler Repair in Miami

Boiler Repair in Miami addresses a smaller but critical slice of the market: older homes in Coral Gables and Miami Beach with original hydronic systems, and newer high-efficiency condensing boilers in waterfront condos along Brickell and Key Biscayne. Most boiler repairs in Miami run $175 – $825, same as furnace work, though cast-iron heat exchanger replacements can push toward the upper end. Boilers here fail differently than up north – they don’t freeze, but they do suffer from corrosion accelerated by salt air and from control boards cooked by attic heat.

Corrosion From Salt and Humidity

Boiler cabinets and burner assemblies within a mile of Biscayne Bay or the Atlantic show rust patterns you won’t see in Orlando or Tampa. The salt-laden air penetrates venting and cabinet seams, attacking the heat exchanger from the outside in. We inspect for this specifically on every boiler call east of I-95, and we spec marine-grade coatings or epoxy-treated replacement components when the original equipment can’t take another season.

Controls and Ignition in Hot Attics

Miami’s unconditioned attics hit 140°F regularly, and that’s where many boiler controls live. Capacitors swell, ignition modules drift out of spec, and thermostat wiring insulation hardens and cracks. The boiler itself may be fine while the controls fail repeatedly. We test under load, not just at rest, because a control that reads normal at 85°F can fail at 130°F.

Gas Furnace Repair in Miami

Gas Furnace Repair in Miami covers the majority of heating calls we receive, from short-cycling Carrier units in 1960s CBS homes to failed ignitors on newer Lennox systems in Coral Gables. Most repairs fall between $175 and $825. The work ranges from simple ignitor or flame-sensor replacements to heat exchanger swaps and blower motor rebuilds. What looks like a furnace problem is often a duct problem in this market – Miami’s pre-Hurricane Andrew homes were built with undersized duct systems that push static pressure past what the original blower motor can handle.

Short-Cycling and Limit Trips

When a gas furnace in Hialeah or Opa-locka won’t stay on, the burners often look clean but the real culprit is airflow. Undersized 1970s ductwork creates backpressure that overheats the heat exchanger, tripping the high-limit switch. We measure static pressure across the system and compare it to the manufacturer’s specification. Sometimes the fix is a blower motor upgrade; sometimes the duct system needs modification. We tell you which before any work starts, with a written price.

Salt Corrosion on Coastal Equipment

Furnaces and air handlers installed east of I-95 face salt exposure that inland markets never see. Cabinet fasteners rust, burner trays pit, and heat exchangers develop pinhole leaks years before their design life. Our tech was called to a 1962 CBS home in Little Havana where a Carrier gas furnace was short-cycling and tripping on the rollout switch after a heat call. The cabinet fasteners and burner tray were rusted from years of Biscayne Bay air, so we swapped the heat exchanger, replaced the blower motor, and set refrigerant charge on the paired condenser coil now that we had the cabinet open. We also recommended an epoxy-coated replacement condenser for the next service cycle, since the original coil was already pitted at year four.

Trusted Brands We Service in Miami

We repair and maintain all major residential HVAC brands, and we stock common parts for Trane, Lennox, Goodman, and Rheem systems on our Miami service trucks. That inventory matters when your furnace quits on a January evening and the part you need is sitting in a warehouse in Atlanta. For less common systems – York, Daikin, Bryant, American Standard – we source overnight from our South Florida distributors and coordinate installation so you’re not waiting days for heat. Every repair begins with a written price, and every part we install carries the same 365-Day Done Right Promise as our labor.

Common Furnace Repair Problems We See in Miami Homes

• Ignition and flame-sense faults from attic heat. Gas furnaces sharing 140°F attic space with air handlers suffer failed ignition modules and cracked low-voltage wiring. The burners are fine; the controls have been cooked. We test components at operating temperature, not just ambient.
• Blower motor failure from undersized ductwork. Pre-1992 CBS homes in Hialeah and Opa-locka were built with duct systems too small for modern air handlers. The motor runs at excessive static pressure, overheats, and fails. We measure and report actual static pressure against manufacturer specs.
• Heat exchanger corrosion from salt air. Equipment east of I-95 shows rust patterns that inland techs mistake for age-related wear. The salt-laden air off Biscayne Bay attacks cabinet seams and burner compartments first, then the heat exchanger itself. We inspect with borescope cameras and combustion analyzers.
• NOA compliance barriers on replacement. Homeowners who buy non-NOA equipment online discover at permit time that Miami-Dade’s High Velocity Hurricane Zone requirements prohibit installation. We verify approval documentation before any replacement begins, avoiding costly re-spec work.

Pricing for Furnace Repair in Miami, FL

We Also Serve Cities Near Miami

Our Furnace Repair in Miami crews also work in Miami Beach, Coral Gables, Key Biscayne, and Hialeah. The same Threshold Verified technicians, the same written pricing, the same 365-Day Done Right Promise apply across all four cities. Scheduling is handled from our Miami office for the full metro area.

FAQs About Furnace Repair in Miami