Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
TraneSeasonal 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.
Get your free estimateStyles & brands we work with
See the difference
Before
After
Before
After
Before
AfterFurnace Replacement in Dallas, TX
Most furnace replacements in Dallas run between $4,200 and $8,900 depending on the size of the home, the efficiency rating you choose, and how much ductwork adjustment is needed. A straightforward swap of a mid-efficiency unit in a 1,600-square-foot home typically lands around $5,000 to $6,500, while a high-efficiency Trane or Lennox system with a variable-speed blower can push past $8,000. At Cold Harbour Heating and Air Dallas, we hand you a written price before any work begins, and we put the installation guarantee on paper before we leave your driveway.
This page covers what a furnace replacement actually involves in Dallas, what it costs, how the process works, and when a repair stops making sense. If you want to talk through your situation, call us at (430) 213-5796. A live person answers, day or night.
We’re the local, independently operated face of the Kingswell Guarantee in Dallas. We’re part of a network that has held itself to four written promises since 2003: a price before the work starts, a firm arrival window, a clean job site, and a guarantee that brings us back for free if the work isn’t done right inside 365 days. You’ll see those same standards on our Heating & Furnace in Dallas page, and they apply to every furnace replacement we install.
When You Need Furnace Replacement
Sometimes the answer is obvious. A heat exchanger crack is a safety issue, plain and simple. That’s a replacement, not a patch. But many Dallas homeowners sit on a furnace that’s limping along when a replacement would actually save them money and nights of discomfort. Here’s when replacement becomes the right call.
- Your heat exchanger is cracked. This is the component that separates combustion gases from the air you breathe. A crack means carbon monoxide can enter the living space. It’s not repairable in a way any responsible technician would guarantee. This is a replacement situation, full stop.
- The furnace is 15 to 20 years old and needs a repair over $1,500. Once you’re spending a third or more of a new unit’s cost on a system that’s already near the end of its design life, you’re gambling. In neighborhoods like Lakewood and Richardson, where homes from the 1980s and 1990s are hitting this window right now, we see this weekly during the first cold snap.
- Your energy bills climb every winter while comfort drops. An older furnace with a 70% AFUE rating (meaning it turns 70 cents of every fuel dollar into heat, wasting the other 30) costs more to run than a 90%-plus unit. The difference shows up in your bill from Atmos Energy every month.
- Rooms are unevenly heated and the system short-cycles. Frequent on-off cycling, cold spots between rooms, and a furnace that runs constantly are signs the unit is oversized for the job or the blower is failing. A properly sized replacement fixes all three.
- Repairs are stacking up. If you’ve replaced an igniter, then a flame sensor, then a control board, and now the blower motor is whining, you’re not maintaining a furnace anymore. You’re funding its retirement party.
- You hear banging, rattling, or rumbling from the heat exchanger area. Popping and banging sounds often mean metal fatigue or a failing burner assembly. In older Rheem and Goodman units, this is a common end-of-life symptom we encounter across North Dallas and Carrollton.
Our Furnace Replacement Process
We follow a set order on every replacement, and you know the price before we touch a tool. Here’s how it goes.
- Free in-home assessment. We send a background-checked, uniformed technician to your home at a scheduled window. You get a call when we’re on the way. We measure the home, check the ductwork, and talk through what you need.
- Written price, no surprises. Before any work begins, you get a written quote with line items. Furnace, labor, any ductwork modifications, disposal of the old unit, and permit costs if required by the City of Dallas. That number does not change at the door. This is a core plank of The Kingswell Way.
- System sizing and brand selection. We calculate the heating load using Manual J, not a rule of thumb. Then we match you with the right furnace from the brands we’re trained on, including Trane, Lennox, and Goodman. The choice is yours, and we explain the efficiency difference in plain English.
- Installation day, on schedule. We arrive in the window we gave you. Our crew lays down protective floor coverings, works through the job, and leaves the space cleaner than we found it. That’s the standard, not a courtesy.
- System startup and walkthrough. We test the full cycle, verify airflow and temperature rise, and walk you through the new thermostat and filter changes. You get the owner’s manual and our written 365-Day Done Right Promise on the installation.
- Old unit disposal. We haul away the old furnace and recycle it where possible. You don’t have to arrange anything.
Furnace Replacement Pricing in Dallas
Here’s what you can expect to pay for a furnace replacement in Dallas, based on what we’re installing across the metro area right now. These ranges include the furnace, labor, startup, and disposal of the old unit.
| Furnace Type | Efficiency | Typical Installed Cost (Dallas) |
|---|---|---|
| Single-stage, 80% AFUE (Goodman, Rheem) | Standard | $4,200 – $5,800 |
| Two-stage, 95% AFUE (Lennox, Goodman) | High efficiency | $5,800 – $7,500 |
| Variable-speed, 97% AFUE (Trane, Lennox) | Top efficiency | $7,000 – $9,500 |
| Ductwork modifications or replacement | As needed | $800 – $4,000+ |
Several things move the price up or down. Homes in older Dallas neighborhoods like Bishop Arts District or M Streets often have tighter closet spaces and older ductwork, which adds labor. A two-story home in Plano or Frisco needs different airflow considerations than a single-story ranch in Garland. And the efficiency rating matters: a 95% AFUE furnace costs more up front but typically pays back the difference within a few Dallas winters.
Every quote we give is free, and it’s in writing. Call (430) 213-5796 and we’ll schedule a time that works for you. You’ll know exactly what you’re paying before we start, and that number won’t shift when the technician arrives.
FAQs – Furnace Replacement
How much does a furnace replacement cost in Dallas?
A furnace replacement in Dallas typically costs between $4,200 and $8,900, with most mid-range installations landing around $5,500 to $7,000. The exact price depends on your home’s square footage, the furnace’s efficiency rating, and whether ductwork needs work. Call (430) 213-5796 for a free written estimate specific to your home.
Is it cheaper to repair or replace my furnace?
As a general rule, if the repair costs more than a third of a new furnace and your unit is over 12 years old, replacement usually saves money in the long run. A cracked heat exchanger always means replacement. We’ll give you an honest read on what makes sense for your situation, and the assessment is free.
Can you replace my furnace the same day?
In many cases, yes. If we have the right unit in stock and your ductwork is sound, we can often complete a straightforward replacement the same day. In peak winter weeks in Dallas, we may need to schedule a day or two ahead. Call (430) 213-5796 and we’ll tell you exactly what’s possible.
What is the 365-Day Done Right Promise?
The 365-Day Done Right Promise is our written guarantee on every repair and installation. If anything fails within 365 days of the work, we come back and make it right at no charge. It’s written on paper before we leave, not a verbal promise. That’s how we’ve operated since 2003 as part of the Kingswell network, and we don’t make exceptions.
Do you service all furnace brands?
Yes. Our technicians are trained on nine major residential HVAC brands, including Trane, Lennox, Goodman, Rheem, Carrier, York, Daikin, Bryant, and American Standard. The technician who arrives at your door can work on whatever system is already in your home.
Why Dallas Homeowners Choose Cold Harbour Heating and Air Dallas
We know what it feels like to be burned by an HVAC company. The no-show technician. The price that jumped at the door. The repair that quit after three weeks. Those aren’t rare in this industry, and they’re exactly what the Kingswell network was built to fix back in 2003.
Here’s how we operate. A live person answers the phone 24 hours a day, 7 days a week. No voicemail trees, no after-hours runaround. You’ll get a written price before a single tool comes out, and it doesn’t change. Our technicians are background-checked and uniformed, so you know exactly who’s walking through your door. We leave the job site cleaner than we found it. And if the work isn’t done right, our 365-Day Done Right Promise means we come back and fix it at no charge, with that guarantee in writing.
The name behind the work isn’t just a name. Victor Mancini has been part of this operation from the start, and he holds every job to the same standard: say the price before the work, show up in the window given, leave the place cleaner than found, put the guarantee in writing, come back if it fails. Those five values are The Kingswell Way, and they’re how every furnace replacement in Dallas gets done under our name.
A cold harbour, by the way, was a roadside shelter where travelers waited out the weather. Comfort in any season is the job. That’s what we do.
Call for a Free Furnace Replacement Estimate in Dallas
If your furnace is failing, old, or costing you more every month, don’t wait until the next cold front rolls through. Call Cold Harbour Heating and Air Dallas at (430) 213-5796 today. You’ll get a free, written estimate with a firm price and a real arrival window. A live person picks up, and the price you’re quoted is the price you’ll pay.
We serve all of Dallas and the surrounding metro area, from Oak Cliff to Richardson, Garland to Carrollton. If you want more detail on the repair side of our work, see our Heating & Furnace in Dallas page. Or to understand the full scope of what we do, start at our home page.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Dallas, serving Dallas.