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Before
AfterFurnace Replacement in Miami, FL
Replacing a furnace in Miami usually costs between $3,200 and $6,800 for a mid-efficiency unit installed in a typical single-family home, with high-efficiency models running $5,500 to $9,500 depending on ductwork condition. Most replacements we schedule take one full day, and we hand you a written price before any equipment is ordered. That price does not change when the crew arrives. If your current furnace is over 15 years old or has needed two repairs in the past twelve months, replacement often costs less over the next five years than continuing to patch an aging system. Call (850) 810-1910 and we’ll give you a straight answer about whether your furnace is worth saving.
Cold Harbour Heating and Air Miami has replaced furnaces across Dade County since 2003, from Kendall to Coral Gables to Hialeah. We work as an independently owned and operated member of the Kingswell network, which means we answer to a written standard, not a corporate call center. Every replacement we install carries the same Heating & Furnace in Miami workmanship promise as our repairs: if something we installed fails within 365 days, we come back and correct it at no charge. That guarantee is handed to you on paper before we leave the job site.
When You Need Furnace Replacement
Not every furnace problem means replacement. Here’s what we tell homeowners in Miami to look for before making the call:
- The furnace is 15 years old or older. Heat exchangers, blower motors, and control boards on units this age fail more often, and replacement parts for discontinued models get harder to source every year in South Florida.
- Repair costs are stacking up. If you’ve spent more than $800 on furnace repairs in the last two years, those dollars would typically cover a meaningful portion of a new, warrantied unit instead.
- The heat exchanger is cracked. This is the one that matters most for your family’s safety. A cracked heat exchanger can leak carbon monoxide into your living space. We flag this immediately and recommend replacement rather than repair.
- Rooms heat unevenly. If some bedrooms stay cold while the living room is comfortable, the furnace is losing capacity or the blower is failing. A new correctly-sized furnace fixes this in most Miami homes we see.
- Energy bills keep climbing. Furnace efficiency drops as components wear. If your winter electric or gas bills are 20% higher than they were three years ago without a rate increase, the furnace is working harder than it should.
- Strange noises or yellow flames. Loud banging, rumbling, or a burner flame that burns yellow instead of blue signals incomplete combustion or failing internal parts. We treat these as replacement indicators, not repair candidates.
Our Furnace Replacement Process
We follow the same steps on every furnace replacement in Miami, and we’ll walk you through each one before we start. Here’s how it works:
- We measure, we don’t guess. A technician visits your home, measures square footage, checks insulation levels, inspects existing ductwork, and calculates the heating load. A furnace that’s too big short-cycles and wastes energy. One that’s too small runs constantly and still leaves you cold.
- We hand you a written price. Before you commit to anything, you get a line-item quote that includes equipment, labor, haul-away of the old unit, and any ductwork modifications. That number is fixed. It does not change at the door.
- We schedule a firm arrival window. We tell you when we’ll be there, and we show up in that window. A live person answers our phone 24 hours a day if you need to adjust.
- We install and explain. Our background-checked, uniformed technicians remove the old furnace, install the new one, test everything, and then walk you through how to operate it and what maintenance to expect. We service all major residential brands, including York, Daikin, and American Standard, so the replacement we install will be one we can service for its full lifespan.
- We leave the site cleaner than we found it. Drop cloths down before work starts, old equipment hauled away, and a final sweep before we leave. That’s written into our standard practice.
- We put the guarantee in writing. Every furnace replacement comes with our 365-Day Done Right Promise. If anything we installed fails within a full year, we return and make it right at no charge. You’ll have the guarantee on paper before we walk out the door.
Furnace Replacement Pricing in Miami
What you’ll pay depends on furnace type, efficiency rating, home size, and whether your ductwork needs work. Here are the ranges we see most often in Dade County:
- Standard efficiency furnace (80% AFUE): $3,200 to $4,800 installed
- High-efficiency furnace (90-96% AFUE): $5,500 to $8,500 installed
- High-efficiency furnace with new ductwork: $7,500 to $13,000 installed depending on home size
- Furnace + AC combo replacement: $8,000 to $14,500 for both units installed together
Miami’s climate means furnaces run far fewer hours than in northern cities, but humidity and salt air still take a toll on heat exchangers and electrical components. Homes closer to the coast, in neighborhoods like Coconut Grove or Key Biscayne, often need corrosion-resistant components, which adds a few hundred dollars to equipment cost. Older homes in Coral Way or Little Havana frequently need ductwork sealing or replacement, which is the biggest variable in any quote. We give you the exact number before you commit, and estimates are free. Call (850) 810-1910 and we’ll come out, measure, and hand you a written price with no obligation.
FAQs – Furnace Replacement
How much does furnace replacement cost in Miami?
Furnace replacement in Miami typically runs $3,200 to $8,500 installed, with most mid-efficiency units in single-family homes landing between $4,000 and $5,500. High-efficiency models, ductwork modifications, and coastal corrosion-resistant components push costs higher. Call (850) 810-1910 for a precise written quote, free of charge.
Is it cheaper to repair or replace my furnace?
If your furnace is under 12 years old and the repair is under $500, repair usually makes sense. If the unit is over 15 years old and the repair exceeds $800, or the heat exchanger is cracked, replacement is the financially smarter move over a five-year horizon. We’ll tell you honestly which way to go, even if it means recommending a repair instead of a sale.
How long does furnace replacement take?
Most furnace replacements in Miami take one full day. Jobs that require significant ductwork replacement or involve relocating the unit can run two days. We give you a firm window before we start, and we leave the site clean the same day we finish.
Can you replace my furnace today?
We keep common furnace models in stock and can often schedule replacement within 24 to 48 hours of your initial call. If your furnace has failed completely and you need heat tonight, call (850) 810-1910 and a live person will get a technician dispatched as soon as possible.
Do you service all furnace brands?
Yes. Our technicians are trained on nine major residential HVAC brands, including York, Daikin, Bryant, and American Standard. The team that installs your new furnace is the same team that will service it for years to come.
Why Miami Homeowners Choose Cold Harbour Heating and Air
The name comes from a cold harbour: a roadside shelter where travelers waited out bad weather. Comfort in any season is the job. We’ve been doing that job in Miami since 2003, and we do it differently than most HVAC companies you’ll call.
The Kingswell Way is our operating standard, and it has five written values we don’t bend: say the price before the work, show up in the window given, leave the place cleaner than found, put the guarantee in writing, and come back if it fails. Every furnace replacement we install follows all five. You get a written price before any equipment is ordered. You get a firm arrival window. You get a clean job site. You get the 365-Day Done Right Promise on paper. And if anything goes wrong within that year, you get us back at your door at no charge.
When you call (850) 810-1910, a live person answers. Not a voicemail tree. Not an answering service that takes a message. A real person who works for Cold Harbour Heating and Air Miami and can schedule your visit. Every day of the year, at any hour.
For a free estimate on furnace replacement in Miami, call us at (850) 810-1910 or reach out through our home page. We’ll measure your space, assess your current furnace, and hand you a written price. No obligations, no surprises at the door.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Miami, serving Miami.