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AfterHow Much Does Furnace Replacement Cost in Las Vegas?
A full furnace replacement in Las Vegas typically costs between $4,200 and $8,700 in 2026, with most mid-efficiency 80% AFUE units installed in a standard single-family home landing in the $5,000 to $6,500 range. High-efficiency models (90%+ AFUE) run higher, usually $6,800 to $11,000 when you factor in the added venting and condensate work. These are all-in numbers: the unit itself, labor, permits, haul-away of the old furnace, and a start-up test before the crew leaves.
We’ve been installing furnaces across Las Vegas since 2003, and the question we hear most from homeowners in Summerlin, Henderson, and Centennial Hills is the same one you’re searching right now: what’s this actually going to cost me, and why does the price swing so much between quotes? This guide lays out the real numbers, the factors that move them, and what you should expect from any contractor who gives you an estimate.
Key Takeaways
- All-in furnace replacement in Las Vegas: $4,200 – $8,700 for most homes; high-efficiency units run $6,800 – $11,000.
- Biggest cost drivers: furnace size (BTU), efficiency rating, brand, and whether ductwork or venting needs changes.
- Gas furnaces are the standard in Las Vegas; electric and heat-pump alternatives carry different price points.
- Cold Harbour Heating and Air provides a written price before any work begins, no exceptions.
- Free estimates: call (725) 726-3813.
Furnace Replacement Cost Breakdown (2026)
Here’s what the line items look like on a typical furnace replacement quote in Las Vegas. The furnace itself is usually 55% to 65% of the total bill; the rest is labor, permits, and the small parts and materials that get replaced alongside the unit. Use this table as a reference point when you’re comparing quotes.
| Line Item | Typical Range (Las Vegas, 2026) | Notes |
|---|---|---|
| Furnace unit (80% AFUE, mid-size) | $2,100 – $3,400 | Most common choice for Las Vegas homes |
| Furnace unit (90%+ AFUE, high-efficiency) | $3,200 – $5,500 | Higher upfront, lower monthly gas bill |
| Installation labor | $1,200 – $2,400 | Includes disconnect, removal, placement, and hookup |
| Permits & inspection | $150 – $400 | Required by Clark County for gas work |
| Old furnace haul-away | $0 – $150 | Often included; confirm on your quote |
| Ductwork modification (if needed) | $300 – $1,500 | Not always required; depends on existing plenum fit |
| Gas line modification (if needed) | $200 – $600 | Only when the line size or shutoff valve changes |
| Thermostat (new or upgraded) | $80 – $300 | Smart thermostats run the higher end |
| Total (typical single-stage, 80% AFUE) | $4,200 – $6,700 | Most common all-in quote in Las Vegas |
| Total (two-stage or variable-speed, 90%+ AFUE) | $6,800 – $11,000 | Premium comfort and efficiency tier |
What moves these numbers up or down fast is the size of the furnace, measured in BTUs. A 40,000 BTU unit for a small condo or patio home near downtown Las Vegas might sit at the bottom of the range, while an 80,000 BTU or 100,000 BTU unit for a two-story Summerlin house lands near the top. If you’re replacing a furnace that’s part of a dual-fuel setup or paired with a heat pump, the controls and wiring add a few hundred dollars more.
One thing we tell every homeowner in Las Vegas: get the quote in writing. Not a verbal ballpark. A written price, with the line items broken out, before any work starts. That’s the only way to compare estimates apples to apples, and it’s how Cold Harbour Heating and Air has always operated. Under the Kingswell Way, the price you’re given before the work begins is the price you pay when the job is done. No door-knock surprises.
What Affects Furnace Replacement Pricing in Las Vegas
Las Vegas is a furnace market with a twist: we don’t get the brutal winters of the Midwest, but we do get stretches where the temperature drops into the 30s at night and the furnace runs hard for weeks. And because our cooling season is so long, the furnace shares air handler space and ductwork with the AC system, which affects how it gets installed and replaced. Here are the factors that genuinely change the price.
- Furnace size (BTU output). A bigger home needs a bigger furnace. A 1,200-square-foot condo in Spring Valley might need 40,000 to 60,000 BTUs, while a 3,000-square-foot two-story in Anthem needs 80,000 to 100,000 BTUs. Bigger units cost more to buy and more to install.
- Efficiency rating (AFUE). An 80% AFUE furnace turns 80 cents of every gas dollar into heat; a 95% AFUE unit turns 95 cents into heat. The higher- efficiency unit costs $1,000 to $2,500 more up front, but in Las Vegas, where natural gas is relatively cheap and furnace season is short, many homeowners recoup that difference in 8 to 12 years. We’ll walk you through the math on a free estimate.
- Brand and model tier. The nine major brands we service, including Carrier, Trane, and Lennox, all have entry, mid, and premium lines. A Goodman entry-level furnace might save you $600 to $1,000 versus a comparable Trane, but the warranty terms, noise level, and blower quality differ. We’re brand-agnostic: we install what fits your home and your budget, then back the whole thing with our 365-Day Done Right Promise in writing.
- Ductwork and venting conditions. If your existing ducts don’t line up with the new furnace’s plenum, or if the old furnace was a different cabinet width, the installer has to fabricate a transition. That’s typically $300 to $1,500. Homes in older Las Vegas neighborhoods, like Paradise or Sunrise Manor, more often need this work than newer builds in Inspirada or Skye Canyon.
- Code and permit requirements. Clark County requires a mechanical permit and, for gas furnaces, a gas-line inspection on replacement work. The permit itself is $150 to $400, but if the inspector finds the old gas shutoff valve isn’t up to current code, that’s another $200 to $600 to bring it into compliance.
- Access and attic conditions. In Las Vegas, a lot of furnaces live in attics, and attic access matters. A furnace in a tight attic with low clearance in an older Henderson neighborhood takes longer to remove and replace than one in a garage closet with easy access. Labor time is labor cost.
With any furnace replacement, gas connections are involved, and gas work is not a DIY job. A faulty gas connection creates a carbon monoxide risk in your home. This is one of those areas where a trained professional should absolutely handle the work, and any legitimate Las Vegas contractor will pull the proper permits before touching the gas line.
How Much Do Common Furnace Replacement Scenarios Cost?
The headline numbers are useful, but most homeowners want to know what their specific situation costs. Here are the scenarios we see most often in Las Vegas homes, with the realistic all-in ranges.
Replacing a 20-Year-Old 80% Furnace with a New 80% Unit
This is the most common replacement in Las Vegas. The old furnace has a cracked heat exchanger or a failed blower motor, and you’re swapping it for a comparable new 80% AFUE unit. All-in cost: $4,200 to $5,800. The job typically takes one day, and the team handles the gas disconnect, removal, new furnace placement, and start-up. This is the price range where most Summerlin and Green Valley homeowners land.
Upgrading from an 80% to a High-Efficiency 90%+ Unit
If you’re going from a standard mid-efficiency furnace to a condensing high-efficiency model, the unit price jumps and you’re also paying for PVC venting and a condensate drain line. All-in: $6,800 to $9,500. In Las Vegas, we install these when homeowners want quieter operation, more even heat, or a lower gas bill over the long run. The 90%+ units also qualify for utility rebates in some Las Vegas neighborhoods, which can knock $200 to $500 off the net cost depending on the year and the program.
Furnace Replacement Combined with AC Replacement
If your AC condenser outside is 15 years old and your furnace is 20, replacing both at once is often the smartest financial move. The furnace and the AC coil share the same air handler, so doing both at once saves a second labor visit. A matched furnace-plus-AC replacement in Las Vegas runs $7,500 to $13,500 depending on efficiency tier and home size. See our Furnace Replacement in Las Vegas guide for the full breakdown of combined system pricing.
Replacing an Electric Furnace or Heat Strip System with a Gas Furnace
Some older Las Vegas condos and patio homes use electric resistance heat. If natural gas is available at the street, converting to gas gives you lower heating bills, but you’re paying for a gas line run from the meter to the furnace. That adds $1,000 to $2,500 to the job, putting the total at $5,500 to $9,000. In condo communities, this conversion may also need HOA approval and additional coordination.
Understanding the Kingswell Guarantee on Furnace Replacement
Furnace replacement isn’t like a repair call. It’s a big-ticket project, and the guarantee behind the work should be in writing before you sign anything. Cold Harbour Heating and Air is an independently owned and operated member of the Kingswell network, which means we hold ourselves to a set of written standards that have been in place since 2003.
Here’s what you get with every furnace replacement we do in Las Vegas:
- A written price before the work begins. Not an estimate, not a ballpark. A line-item price handed to you before any tools come out, and that price doesn’t change at the door. This is the first plank of the Kingswell Way.
- A firm arrival window. When we schedule your replacement, you get a window, and the technician arrives inside it. No all-day waits, no no-shows.
- A clean job site. The old furnace is removed, the attic or closet is left cleaner than the crew found it, and the team takes the debris with them.
- The 365-Day Done Right Promise in writing. If any part of the replacement work fails within a full year, we come back and correct it at no charge. This guarantee is on paper, not a verbal promise, and it applies to every furnace replacement and repair we perform.
The name Cold Harbour comes from a roadside shelter where travelers used to wait out bad weather. That idea, comfort in any season, is what the Kingswell standard has been about since the beginning. Victor Mancini leads our Las Vegas team, and he holds every technician to those four written promises on every job.
How to Save on Furnace Replacement in Las Vegas
Nobody wants to overpay for a furnace, and in Las Vegas you have plenty of contractors to choose from. Here’s how to keep your replacement cost reasonable without cutting corners that will cost you later.
- Get three written quotes, and make sure they’re comparable. Ask each contractor to quote the same size furnace (in BTUs) and the same efficiency tier (AFUE). If one quote is $1,500 lower, check whether it includes the permit, haul-away, and start-up test, or if those will be added later. In Las Vegas, the low-ball quote often omits a permit that Clark County will eventually require.
- Check current utility rebates. Southwest Gas and NV Energy occasionally offer rebates for high-efficiency furnace installations. These rebates change year to year, but they can knock $200 to $500 off a 90%+ AFUE unit. A quick check before you buy is worth the time.
- Time your replacement before or after the winter rush. Furnace demand in Las Vegas spikes from late November through January. Late summer and early fall are slower months for HVAC companies, and some run seasonal promotions. Even without a discount, scheduling is easier and you’re not waiting a week for an install slot.
- Replace the furnace and AC together if both are old. If your AC is approaching 15 years and the furnace has failed, doing both at once saves you a second labor charge and gives you a fully matched system. It’s a bigger single check, but a smaller total cost over the next few years.
- Get the guarantee in writing before you commit. A cheap furnace installed poorly is not a bargain. Ask every contractor whether their workmanship warranty is written down and how long it lasts. Repair calls inside that first year are where you actually save money, and at Cold Harbour Heating and Air, the 365-Day Done Right Promise covers that in black and white.
Call (725) 726-3813 for a free, no-pressure estimate on furnace replacement in Las Vegas. A live person answers, any hour, any day, and we’ll schedule a visit that fits your schedule.
Step-by-Step: What Happens During a Furnace Replacement
Here’s exactly what to expect when our crew replaces your furnace in Las Vegas, from the first phone call to the final walkthrough.
- You call (725) 726-3813 and schedule a free estimate. A live person answers, day or night. You tell us the square footage of your home, the age of the current furnace, and any issues you’ve been having. We book a time window that works for you.
- We visit the home and take measurements. Our technician checks the existing furnace’s location, the ductwork, the gas line, and the home’s square footage to calculate the correct BTU size. This is not a guess; it follows Manual J load calculation principles, the standard method for sizing HVAC equipment.
- You receive a written, line-item quote. Before any work is approved, you get the full price in writing: unit, labor, permit, haul-away, and any extras like duct modifications. The price you see is the price you pay. No surprises at the door.
- You approve the quote and we schedule the install. Installation day is usually 3 to 7 days after approval, depending on season. You get a firm arrival window, and our uniformed, background-checked technician arrives inside it.
- The old furnace is removed and the new one installed. The crew disconnects the gas line, removes the old furnace, places the new unit, reconnects the gas and ductwork, and runs a full start-up sequence. Most Las Vegas replacements take 4 to 8 hours.
- The crew cleans up and walks you through the new system. We leave the job site cleaner than we found it, haul away the old furnace, and walk you through the new thermostat and furnace operation. You get the 365-Day Done Right Promise in writing before the technician leaves.
- The permit inspection happens (usually within a week). Clark County inspects the gas and mechanical work. If anything needs adjusting, we’re there to handle it.
Furnace Replacement vs. Furnace Repair: Which Makes Sense?
When a furnace breaks in Las Vegas, the first question is always whether to repair it or replace it. Here’s the practical rule we give homeowners: if the repair costs more than 50% of the furnace’s remaining value, and the unit is over 15 years old, replacement is usually the wiser choice.
Furnace repairs in Las Vegas typically run $150 to $700 depending on the part. A flame sensor replacement might be $150 to $250. A blower motor replacement might be $500 to $700. A cracked heat exchanger, the most serious failure, usually pushes a furnace toward replacement because the part cost plus labor lands at $1,500 to $2,500 on a furnace that’s already near the end of its life span.
Here’s the repair-versus-replace math in plain terms. If your furnace is 8 years old and the blower motor fails for $600, repair it. It has 7 to 10 more years of service in it. If your furnace is 18 years old and the heat exchanger cracks, you’re looking at a major repair on a unit that’s already past its expected life. Replace it. That’s the decision point, and we’ll give you an honest recommendation either way. Our repair work is covered by the 365-Day Done Right Promise, so if we fix your furnace and the repair fails within a year, we come back at no charge. If the smart move is replacement, we’ll tell you that too, with a written quote so you can decide on your own timeline.
FAQs – Furnace Replacement Cost
How much does a furnace replacement cost in Las Vegas?
A furnace replacement in Las Vegas costs $4,200 to $8,700 for most homes, with mid-efficiency 80% AFUE units installed for $5,000 to $6,500. High-efficiency 90%+ AFUE units run $6,800 to $11,000. These prices include the unit, labor, permit, and haul-away. Call (725) 726-3813 for a free written quote specific to your home.
Is it cheaper to repair or replace a furnace in Las Vegas?
A furnace repair in Las Vegas runs $150 to $700 for most issues, while a replacement runs $4,200 to $8,700. As a rule, if the repair is under 50% of the furnace’s remaining value and the unit is under 15 years old, repair is cheaper. If the furnace is 18 years or older and the repair is major, like a cracked heat exchanger at $1,500 to $2,500, replacement is the better financial move. We’ll give you an honest recommendation either way, covered by our 365-Day Done Right Promise.
How much does a high-efficiency furnace cost installed in Las Vegas?
A high-efficiency 90%+ AFUE furnace installed in Las Vegas runs $6,800 to $11,000 all-in. This includes the condensing unit, PVC venting, condensate drain line, and installation labor. The higher upfront cost is offset by lower monthly gas bills, though in Las Vegas’s short heating season, the payback period is typically 8 to 12 years. Utility rebates from Southwest Gas or NV Energy may reduce the net cost.
What size furnace do I need in Las Vegas?
Most Las Vegas homes need a furnace between 40,000 and 100,000 BTUs depending on square footage: 1,200 square feet takes about 40,000 to 50,000 BTUs, 2,000 square feet takes 60,000 to 80,000 BTUs, and 3,000 square feet or more takes 80,000 to 100,000 BTUs. Size is determined by a load calculation, not a guess. A furnace that’s too big short-cycles and wastes gas; one that’s too small can’t hold temperature on cold desert nights.
Can you replace a furnace in one day in Las Vegas?
Yes. Most furnace replacements in Las Vegas are completed in 4 to 8 hours, a single workday. This assumes the existing ductwork and gas line are in usable condition. If duct modifications or a gas line conversion are needed, the job may extend into a second day. Call (725) 726-3813 to schedule a free estimate and get a firm arrival window.
Do I need a permit to replace a furnace in Las Vegas?
Yes. Clark County requires a mechanical permit for furnace replacement, and gas furnace work also requires a gas-line inspection. The permit costs $150 to $400 and is usually included in the contractor’s quote. Any legitimate Las Vegas furnace installer will pull the permit and schedule the inspection. If a quote doesn’t include a permit, ask why.
How much does a furnace and AC replacement cost together in Las Vegas?
A combined furnace and AC replacement in Las Vegas runs $7,500 to $13,500 for a matched system, depending on home size and efficiency tier. Replacing both at once saves a second labor charge and ensures the furnace and AC coil are properly matched. See our Furnace Replacement in Las Vegas guide for a full breakdown of combined system pricing.
Call Cold Harbour Heating and Air for a Free Furnace Replacement Estimate
When you’re ready to replace your furnace in Las Vegas, you’ll get a written price before any work begins, a firm arrival window, and a 365-Day Done Right Promise in writing before the technician leaves. That’s the Kingswell standard, and Victor Mancini’s team at Cold Harbour Heating and Air has worked to it since 2003.
We service all nine major residential HVAC brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard, so whatever system you have or want, we can install and maintain it. Our technicians are background-checked and uniformed, and a live person answers the phone 24 hours a day, 7 days a week.
Call (725) 726-3813 now for a free, no-pressure estimate on furnace replacement in Las Vegas. You’ll speak to a person, not a voicemail tree, and we’ll schedule a visit that fits your schedule. For more on our furnace services, visit our home page or read the full Furnace Replacement in Las Vegas guide.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Las Vegas, serving the Las Vegas Valley since 2003. Pricing reflects the Las Vegas market as of 2026. Cold Harbour Heating and Air Las Vegas offers free estimates – call (725) 726-3813.
What Our Customers Say
"Signed up for a tune up before summer. He found a part starting to fail and showed me the reading, didn't just tell me to trust him. Fixed it then so we wouldn't get stuck in July."
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