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

Fast, Reliable Furnace Repair Across Longwood

Furnace repair in Longwood typically runs $150 – $700 depending on the part that failed, and most jobs are completed same-day. If your heat is out or blowing cold, call (361) 306-9515 and a real person answers, 24/7. Dalton Heating & Air sends background-checked, uniformed technicians to Longwood with a written price before any work starts, every single time.

Call (361) 306-9515

Longwood’s inland Central Florida location means winter nights can drop into the 30s while afternoons still reach the 70s. That swing puts unusual stress on the components that shift your heat pump between cooling and heating modes. Our technicians know this because we work on those exact failures in Longwood’s neighborhoods every week, from the Wekiva River corridor to the communities around 434 and Markham Woods Road. We’re not learning your climate from a manual. We’re fixing systems that live in it.

Call (361) 306-9515 for a free estimate on furnace repair anywhere in Longwood.

Why Dalton Heating & Air Is Longwood’s Preferred Furnace Repair Company

Homeowners in Longwood have dealt with enough no-shows and door-price changes to last a lifetime. That’s why Dalton Heating & Air operates under The Garrison Standard, a code our company has followed since 2003. The price is in writing before any work begins. The repair is guaranteed in writing for a full year. If it fails during that time, we return at no charge. No fine print, no upgrade pitch, no exceptions. That’s the standard Marco Benitez, our owner, holds every Longwood job to.

When you book with us, you know who is coming before they arrive. Every technician is background-checked and uniformed. Every call is answered by a live person, not a voicemail queue. And every repair is backed by the 365-Day Done Right Promise: if it’s not done right, we make it right for a full year.

Our crews serve Longwood locally, with scheduling coordinated from our South FL office. That means rapid dispatch to Longwood neighborhoods without the overhead of a storefront you’d pay for in the quote. It’s a leaner setup that puts the budget where it belongs: the parts, the labor, and the guarantee.

Heat Pump Repair in Longwood

Heat pump repair in Longwood runs $150 – $700, and the part we replace most often here is the reversing valve. That’s the component that switches your system between summer cooling and winter heating, and Longwood’s swing climate works it harder than almost any other weather pattern in the country. When it fails, the compressor runs but the air coming from the vents is cool instead of warm. That’s not a furnace problem. It’s a heat pump problem, and it needs a technician who knows the difference.

Reversing Valve and Defrost Cycle Work

A failed reversing valve on a Longwood heat pump can’t be diagnosed by sound alone. Our technicians test refrigerant pressures in both modes, check the valve’s solenoid coil, and verify the defrost board is cycling correctly. In a climate like ours, skipping the defrost check is how a $150 fix becomes a $700 repair. We test the full sequence, not just the part that’s obviously failed.

A defrost cycle that doesn’t engage on a cold Longwood night leaves the outdoor coil iced over and the system locked out while your house drops into the 50s. Our repair includes a full defrost board and sensor check so the fix sticks when the next cold snap hits.

Capacitor and Short-Cycle Repairs

A weak capacitor reads exactly like a dead system: the thermostat calls for heat, the unit hums, and then clicks off. It’s a five-minute test to confirm, and the part itself is inexpensive. But if it goes unaddressed, the compressor and blower motor take a beating during every cold snap. In Longwood, where winter nights in the 30s send every heat pump on the street firing at once, that weak capacitor fails fast.

Heating Repair in Longwood

Heating repair in Longwood covers a broader set of failures: heat exchangers, ignitors, gas valves, blower motors, and control boards. If your furnace burns gas instead of running a heat pump, the repair path is different, and so are the parts. Most heating repairs in Longwood run $150 – $700, with heat exchanger work at the upper end when the part is still under warranty but the labor is extensive.

Heat Exchanger and Ignitor Concerns

A cracked heat exchanger in a gas furnace is a carbon monoxide risk, and we don’t band-aid it. Our technicians inspect for cracks, check combustion readings, and give you a straight answer on repair versus replace. If the exchanger is gone and the unit is old, the honest recommendation is a replacement. If it’s under warranty, we handle the labor and paperwork and get you back to heat without overselling a new system.

Ignitor replacement on a gas furnace is one of the most common Longwood heating repairs we do. The ignitor glows, lights the burner, and your house gets warm. When it cracks, the furnace locks out. The part is cheap, the diagnostic is quick, and we carry common ignitors on our trucks for same-day repair.

Gas Valve and Blower Motor Repairs

A failing gas valve can cause intermittent heat: the furnace fires, then shuts down, then fires again. Our technicians test gas pressure and valve operation before condemning the part. Blower motor failures are different still. A variable-speed motor that’s pulling incorrect static pressure can run the system constantly without ever hitting the thermostat setpoint. That’s not a control board issue. It’s a blower motor issue, and fixing it right requires measuring air pressure, not just swapping the part.

Trusted Brands We Service in Longwood

Dalton Heating & Air is factory-trained to service nine major residential HVAC brands, and in Longwood we see a lot of Goodman, Rheem, and Carrier heat pumps in particular. York and Daikin are common in newer Longwood construction, especially in subdivisions around 434. We stock common repair parts for these brands in our local service vehicles, which means fewer return trips and faster turnaround when your heat is out. Whether your system is a 7-year-old Goodman or a Daikin still under warranty, we’ll give you a written repair price before any work starts and a full-year written guarantee when the job is done.

Common Furnace Repair Problems We See in Longwood Homes

• Reversing valve failure on heat pumps. Longwood’s winter nights in the 30s followed by 70-degree afternoons force the reversing valve to switch modes more often than in almost any other climate. When it sticks, the system runs the compressor but blows cool air.
• Weak capacitors during cold snaps. When a 35-degree night hits Longwood, every heat pump on the street comes on at once. A marginally weak capacitor can’t handle the load, and the compressor or blower motor short-cycles. Reads like no heat, fixed with a cheap part.
• Wrong-sized tonnage from prior installs. Many Longwood homes, especially those built in the 1990s and early 2000s, have heat pumps that were never load-calculated for Humid subtropical conditions. An oversized system short-cycles; an undersized one runs constantly. Both shorten the life of the heat exchanger and evaporator coil.
• Defrost board lockouts. On humid Longwood winter mornings, the outdoor coil frosts over. If the defrost cycle doesn’t clear it, the system locks out and you wake up to a cold house. The fix is typically a defrost sensor or board, not a new system.

Pricing for Furnace Repair in Longwood, FL

We Also Serve Cities Near Longwood

Dalton Heating & Air handles Furnace Repair across the Longwood area and nearby cities. If you’re in Lake Mary, Altamonte Springs, Casselberry, or Winter Springs, we dispatch the same background-checked crews with the same written pricing and full-year guarantee. Furnace Repair in Longwood is where we spend most of our winter days, but the service area covers the whole corridor.

FAQs About Furnace Repair in Longwood