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.
HVAC Company in Mount Dora, FL
Most HVAC calls in Mount Dora run $150-$700 for repairs and $3,500-$7,500 for a full AC installation, with same-day response available when a system fails in summer humidity. We’re Coldharbour Heating & Air, and we’ve learned that working in Mount Dora means solving problems you don’t hit in neighboring Lake County towns: historic homes with no ductwork, lake-driven humidity that eats coils, and a preservation board that reviews every exterior line set in the district. Our phone is (817) 402-2972, answered by a live person any hour you call.
Why Mount Dora Homes Are Different
Mount Dora sits on a hill surrounded by Lake Dora, Lake Beauclair, and Lake Carlton. That geography traps moisture against homes overnight, pushing humidity levels past what landlocked Tavares or Eustis see. We’ve replaced evaporator coils in Mount Dora that failed years earlier than expected, and we now check drain pans and air handler cabinets for mold as standard practice, not an upsell.
The historic district changes everything about how we work. These 1920s-1940s Craftsman bungalows and Florida Vernacular cottages were built with plaster walls, balloon framing, and no provision for ductwork. Attics are too shallow and too hot for conventional air handlers. We regularly route high-wall mini-splits or compact modular systems through interior closets, then submit exterior line-set placement to the Historic Preservation Board before pulling a permit. No other Lake County city adds that step.
Outside the historic core, 1990s-2010s subdivisions on the city’s edges have standard platform framing and conventional systems. But the mix means our technicians carry parts for both modern heat pumps and creative retrofit configurations on every truck.
Our Main Mount Dora Services
Mount Dora homeowners call us most often for three jobs, each with its own local conditions and pricing. Every repair we complete carries our written 365-Day Done Right Promise.
AC Repair in Mount Dora
AC repair in Mount Dora means dealing with coil corrosion from lake humidity, clogged condensate drains from algae growth, and capacitors that fail early from constant high-load cycling. We stock capacitors, contactors, and condensate pumps sized for the systems we see in Mount Dora’s historic cottages and suburban homes alike. When we arrive, we diagnose first, hand you a written price before touching a tool, and guarantee the repair for 365 days. AC Repair in Mount Dora covers common failures, pricing, and what to check before calling.

Furnace Repair in Mount Dora
Mount Dora’s furnace repair season is short but sharp: January nights can dip near freezing, and most heating here is electric heat strips or heat pumps with auxiliary backup. We see failed sequencers, stuck reversing valves, and defrost board failures that leave a home cold by morning. Our trucks carry heat-strip kits and defrost sensors for Goodman, Rheem, and York systems common in local subdivisions. Furnace Repair in Mount Dora explains what fails, typical costs, and how we keep you warm.

AC Installation in Mount Dora
New AC installation in Mount Dora ranges from straightforward suburban changeouts to historic-district projects requiring mini-split or compact modular systems routed through interior spaces. We size every system with a room-by-room load calculation, account for the humidity load from surrounding lakes, and handle Historic Preservation Board submissions when exterior work is unavoidable. AC Installation in Mount Dora covers system options, pricing, and the permitting process.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Mount Dora
Our technicians are trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, and control boards for Goodman, Rheem, and York systems locally, which means most Mount Dora repairs don’t wait for parts. See our brands for full coverage.
Pricing for HVAC Company in Mount Dora, FL
| Service | Typical range in Mount Dora |
|---|---|
| AC Repair (minor) | $150-$350 |
| AC Repair (major) | $350-$650 |
| Furnace Repair (minor) | $150-$350 |
| Furnace Repair (major) | $350-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up / Maintenance | $80-$200 |
Prices run higher in Mount Dora’s historic district, where plaster walls and minimal attic access add labor hours to every job. We give you a written, fixed price before any work begins, and that number does not change when we’re done.
Neighborhoods We Serve in Mount Dora
We dispatch from our Miami-area coordination office and keep technicians routed through Mount Dora daily. Most calls reach us within 30-45 minutes during standard hours.
- Historic Downtown / Donnelly Street corridor
- Lakeside Hills
- Country Club of Mount Dora
- Sullivan Ranch
- Wolf Creek Ridge
Service Area – Cities Near Mount Dora
Our coverage extends throughout central Lake County and beyond. We regularly service Eustis, FL to the north, Tavares, FL to the northwest, Leesburg, FL to the west, and Fruitland Park, FL to the southwest. Each city has its own housing stock and humidity patterns, but Mount Dora’s historic district and lake-ringed geography make it the most technically varied work we do in the region.
Serving Mount Dora, FL - Our Local Coverage Area
We’re based in the Mount Dora 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 HVAC Company in Mount Dora
We answer live 24 hours a day, and most Mount Dora appointments are scheduled same-day or next-day depending on call volume. Emergency no-cool calls in summer get priority routing. Call (817) 402-2972 to check today’s availability.
Only if your property sits within Mount Dora’s designated historic district and the work involves visible exterior modifications, such as line-set routing or condenser placement. We handle that submission as part of our installation process; most suburban homes outside the district need only standard permits.
Mount Dora’s ring of lakes drives overnight humidity accumulation that accelerates coil corrosion, drain pan mold, and electrical component degradation. Annual maintenance, including coil cleaning and drain treatment, typically extends system life by several years in this environment. Call (817) 402-2972 to schedule a tune-up.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Mount Dora Customers Say
"Furnace was short cycling all winter. They diagnosed a bad sensor instead of condemning the whole unit like I feared. Cheap fix, honest call."
- Russ Tiedemann"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly







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