Furnace Replacement in Houston, TX

Furnace Replacement in Houston, TX

Most furnace replacements in Houston run between $4,200 and $7,800 for a standard single-stage system in a typical 1,800 – 2,400 square foot home, with high-efficiency two-stage or variable-speed units landing between $8,000 and $12,500. The job usually takes one full day, sometimes two if ductwork modifications are needed. At Cold Harbour Heating and Air Houston, we put the price in writing before any work starts, so you know the number before a single tool comes out. Give us a call at (832) 371-9862 and we’ll talk through what your home actually needs.

Furnace replacement isn’t something most Houston homeowners plan for. It tends to become necessary at the worst possible moment, on the coldest January morning when the old unit finally gives out. That’s exactly when having a company that answers the phone with a live person matters. We’re part of the Heating & Furnace in Houston work we do every winter, and we’ve been at it since 2003 as an independently owned member of the Kingswell network.

The name Coldharbour comes from an old roadside shelter where travelers waited out rough weather. We think of furnace work the same way: getting a Houston household through the cold snap safely, with heat that works when it’s supposed to.

When You Need Furnace Replacement

Not every furnace problem means replacement. A bad igniter, a failed blower motor, or a cracked pressure switch can usually be repaired. But there are signs that tell us a replacement is the smarter move. Here’s what we look for when we walk into a Houston home:

• Your furnace is 15 years or older. In Houston’s climate, furnaces run fewer hours per year than they do up north, but the humidity and salt air still take a toll. A 15-year-old furnace that needs a $900 repair is usually better off being replaced than patched.
• The heat exchanger has cracked. This is the big one. A cracked heat exchanger can leak carbon monoxide into your home. It’s a safety issue first and a comfort issue second. We’ll always recommend replacement over repair when we find this, and we’ll explain exactly why in plain English before you spend a dollar.
• Repair costs are stacking up. If you’ve spent $400 on a repair in November and another $600 in December, you’re throwing money at a unit that’s telling you it’s done. At some point, replacement costs less than keeping a dying furnace on life support.
• Your energy bills keep climbing. A furnace that’s lost efficiency burns more gas to produce the same heat. If your CenterPoint Energy bill has crept up every winter despite similar usage, the furnace is working harder than it should.
• Rooms heat unevenly or the house never feels warm. This can point to an undersized furnace or failing components. In homes in Katy, Cypress, and The Woodlands, we often find original builder-grade furnaces that were marginally sized from day one.
• The blower runs constantly or cycles on and off every few minutes. Short cycling wastes energy and wears out parts. It can sometimes be fixed, but on an older unit it’s often the final warning before a full breakdown.

If any of these sound familiar, call (832) 371-9862. We’ll send a trained technician to assess the furnace honestly. Sometimes the right answer is a $200 repair. We’ll tell you that too.

Our Furnace Replacement Process

Here’s how a furnace replacement with Cold Harbour Heating and Air Houston goes, from the first phone call to the final walkthrough:

1. You call and a live person answers. Not a voicemail tree. Not a callback service. A real person at (832) 371-9862, 24 hours a day, 7 days a week. We ask a few questions about your home and furnace, then schedule a visit in a firm window we commit to in writing.
2. We inspect your current system and your home. Our technician looks at the furnace itself, checks the condition of your ductwork, measures the square footage, and asks about your comfort complaints. We service nine major brands including Carrier, Trane, Lennox, and Goodman, so we can work with whatever’s already in your home.
3. We give you a written price before any work begins. That’s The Kingswell Way, and it’s non-negotiable. The price covers the furnace, the labor, the disposal of the old unit, and any necessary modifications. What’s on paper is what you pay. No surprises at the door.
4. We install the new furnace on the scheduled day. Our background-checked, uniformed technicians arrive in the window we promised. They protect your floors, work clean, and keep you informed through the day. Most replacements take six to eight hours.
5. We walk you through the new system. Before we leave, we show you how to set the thermostat, change the filter, and what the new furnace sounds like when it’s running normally. We also leave the place cleaner than we found it, haul away the old unit, and hand you the warranty paperwork.
6. Your 365-Day Done Right Promise starts that day. Every installation is backed by our written guarantee. If anything isn’t right within a full year, we come back and make it right at no charge. That’s on paper, not just a handshake.

Furnace Replacement Pricing in Houston

Furnace replacement cost in Houston depends on three things: the size of your home, the efficiency of the furnace you choose, and the condition of your existing ductwork. Here’s what we typically see:

Furnace Type	Efficiency (AFUE)	Typical Installed Cost in Houston
Single-stage, 80% AFUE	80%	$4,200 – $5,800
Two-stage, 95% AFUE	95%	$6,500 – $8,500
Variable-speed, 96%+ AFUE	96% or higher	$8,500 – $12,500
Ductwork modifications (if needed)	N/A	$800 – $3,000 additional

Those are real numbers from the Houston market. A 1,500-square-foot bungalow in the Heights needs a smaller furnace than a 3,500-square-foot two-story in Sugar Land, so the price shifts accordingly. We also factor in things like whether your home has existing high-efficiency venting or needs a new condensate line.

Here’s what affects the final price:

• Furnace size (BTUs). A 60,000 BTU furnace for a smaller home costs less than a 100,000 BTU unit for a larger one. We size correctly using Manual J calculations, not guesswork.
• Efficiency rating. An 80% AFUE furnace is the budget-friendly option. A 95% or 96% AFUE unit costs more upfront but uses less gas every winter. Over a 15-year lifespan, the high-efficiency units typically pay back the difference in Houston’s natural gas rates.
• Brand. We install Carrier, Trane, Lennox, Goodman, and other major brands. Goodman tends to run toward the lower end of the price range, while Carrier and Trane sit at the higher end. We’ll quote what fits your budget and explain the real differences, not just the badge.
• Ductwork condition. If your ducts are leaky, undersized, or damaged, a new furnace alone won’t fix your comfort problems. We’ll show you what we find and quote the full scope honestly.
• Permits and code requirements. The City of Houston requires a mechanical permit for furnace replacement. We pull the permit, schedule any inspections, and handle the paperwork as part of the job.

Estimates are free. Call (832) 371-9862 and we’ll give you a written quote for your specific home.

Why Houston Homeowners Choose Cold Harbour Heating and Air

We’re not the only furnace replacement company in Houston. We know that. Here’s what we put in writing that most competitors won’t:

• The price before the work starts. Written down. Handed to you. It doesn’t change at the door, and it doesn’t creep up mid-job.
• A firm arrival window. We tell you when we’re coming, and we show up then. Not a four-hour “sometime between noon and whenever” window.
• A clean job site. Floors protected, old unit hauled away, no debris left behind. If we make a mess, we clean it before we leave.
• The 365-Day Done Right Promise. Every installation is covered by a written guarantee valid for a full year. If anything fails in that window, we return and correct the work at no charge. No arguing. No fine print. It’s on paper before the technician leaves.
• A live person on the phone, 24/7. Houston gets cold snaps at night. Your furnace doesn’t wait for business hours, and neither do we. Call (832) 371-9862 at 2 a.m. and a real person picks up.

We’ve been doing this since 2003 under the Kingswell network of independently owned and operated HVAC businesses, all held to the same written standards. The name on the truck is Cold Harbour Heating and Air Houston, and owner Victor Mancini stands behind every job we do.

Safety Note: Furnace Replacement Is Not a DIY Job

We need to be direct about this. Furnace replacement involves gas lines, electrical wiring, exhaust venting, and combustion byproducts. A mistake during installation can cause carbon monoxide poisoning, gas leaks, or a house fire. This is not a weekend project. Houston requires mechanical permits for furnace work for good reason. Please don’t attempt it yourself. Hire a trained professional who carries the proper licensing and insurance, and who will pull the permit and schedule the inspection. That’s what we do on every single job.

FAQs – Furnace Replacement

How much does a furnace replacement cost in Houston?

A furnace replacement in Houston typically costs between $4,200 and $12,500 depending on the size of your home, the efficiency rating of the unit you choose, and whether your ductwork needs modifications. A basic 80% AFUE single-stage furnace for a smaller home starts around $4,200, while a variable-speed 96% AFUE unit for a larger home can reach $12,500. Call (832) 371-9862 for a free written estimate specific to your home.

How long does furnace replacement take?

Most furnace replacements in Houston are completed in one day, typically six to eight hours from arrival to final walkthrough. If your job requires ductwork modifications or a new condensate line, it may stretch into a second day. We’ll give you a firm timeline when we provide the written quote.

Is it cheaper to repair or replace a furnace in Houston?

If your furnace is under 10 years old and the repair costs less than $500, repair usually makes sense. If the unit is 15 years or older, has a cracked heat exchanger, or needs a repair that costs more than 30% of a replacement, replacement is almost always the better financial decision. We’ll show you the math on paper before you decide, and we’ll respect whichever direction you choose.

Can you replace my furnace the same day in Houston?

We can often install a furnace within 24 to 48 hours of your call, and in emergency situations where a home is without heat in freezing weather, we prioritize same-day or next-day installation. Call (832) 371-9862 and a live person will tell you the soonest we can get to your home. The estimate is free.

Do you service all furnace brands in Houston?

Yes. Our technicians are trained on nine major residential HVAC brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. Whatever brand is currently in your home, we can replace it with a compatible unit and explain the differences in plain English.

Get Your Free Furnace Replacement Estimate

If your furnace is failing or you’re just planning ahead for the next Houston winter, call us. We’ll answer the phone, schedule a visit in a firm window, and put a written price in your hands before any work begins. The 365-Day Done Right Promise comes with every installation, so you’re covered in writing, not just in words. Reach us at (832) 371-9862 any time, day or night. We’d rather talk now than have you waiting in a cold house later.

Written by Victor Mancini, Owner at Cold Harbour Heating and Air Houston, serving Houston.