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RESIDENTIAL HVAC · BOULDER COUNTY · 5,340 ft

Furnace and AC Service in Louisville, CO

Louisville is 1980s and 1990s homes in Coal Creek Ranch, Centennial Valley and the Steel Ranch area, with Old Town bungalows downtown and many Marshall Fire rebuilds in the Harper Lake area now choosing all-electric heat pumps. Replacements here skew toward high efficiency and electrification, and rebuild incentives are among the most generous in the state.

12HVAC jobs completed in Louisville
1.2 hrsaverage response time
3systems installed this year
1five-star reviews from Louisville
CURRENT OFFERS IN LOUISVILLE

Current coupons for Louisville homeowners.

All specials →
HVACExpires Oct 31, 2026$1,500 offA new HVAC system$1,500 off a new furnace, air conditioner or heat pump system, installed.CODE ANNIV1500Claim offerHVAC$8521-point furnace or AC tune-upA 21-point tune-up with a carbon monoxide test.CODE TUNEUP85Book a tune-upFINANCINGUp to 120 moPayments through WisetackProjects up to $25,000. Checking your rate takes a minute and doesn't affect your credit.NO CODE NEEDEDCheck my rate
QUICK FACTS

HVAC in Louisville at a glance.

At 5,340 ft a gas furnace delivers roughly 79% of its rated output, so every system we install in Louisville is sized and adjusted for altitude. Front Range furnaces run six to seven months a year, which is why most Louisville homeowners choose 96% two-stage equipment or a cold-climate heat pump. Rebuild and electrification rebates in Louisville are among the most generous in the state. Louisville is served from our Denver office at 1900 S Quince St Unit B with same-day appointments and no trip charges.

Updated October 2026 · prices and rebates are refreshed each quarter.
SERVICE AREA
Louisville, Boulder County
SERVICES
Furnace & AC replacement, repair, tune-ups, heat pumps, maintenance plan
NEW SYSTEM
$8,800 to $18,000 installed, from $96/mo
TUNE-UP
$85, 21-point with CO test
WARRANTY
10-year labor, 10-year parts on qualifying systems
INSTALL SPEED
Next-day available
UTILITY
Xcel Energy (gas and electric)
ELEVATION
5,340 ft · every system sized for altitude
PHONE
1-844-WEL-DONE · 24/7 dispatch
WHAT WE DO HERE

HVAC services in Louisville

Every job is dispatched from our Denver office with same-day appointments and no trip charge.
REPLACEMENTFurnace & AC replacement in LouisvilleThree written options at a free in-home visit, next-day installs by our own crews. Every system sized for 5,340 ft.Replacement pricing →REPAIRFurnace repairSame-day repair, 4-hour no-heat response, 91% fixed on the first visit.Furnace repair →REPAIRAC repairAll brands, parts on the truck, flat price before work starts.AC repair →HEAT PUMPSCold-climate heat pumpsSized for 5,340 ft, with utility rebates handled.Heat pumps →MAINTENANCETune-ups & Essential Care Club$85 tune-up, or two a year with 15% off repairs from $12/mo.Plans →
WE KNOW LOUISVILLE

Which Louisville neighborhoods do you serve?

All of Louisville and the surrounding Boulder County area, with most of our work in Coal Creek Ranch, Centennial Valley, Steel Ranch, Old Town Louisville, Harper Lake area and Hillsborough.

  • Coal Creek Ranch2 jobs
  • Centennial Valley2 jobs
  • Steel Ranch1 jobs
  • Old Town Louisville1 jobs
  • Harper Lake area1 jobs
  • Hillsborough1 jobs
Don't see your neighborhood?We cover all of Louisville and the rest of Boulder County. No trip charge.Call 1-844-WEL-DONE
Furnace + AC replacementCoal Creek Ranch · 2026
Cold-climate heat pumpCentennial Valley · 2026
Tune-up visitSteel Ranch · 2026
Water heater + furnaceOld Town Louisville · 2026
LOUISVILLE HVAC QUESTIONS

Costs, rebates and timing in Louisville.

Colorado furnace cost guide →
MOST ASKED

How much does a new furnace cost in Louisville?

Furnace replacements in Louisville run $4,800 to $9,500 installed, and furnace-plus-AC systems $8,800 to $18,000, depending on home size and efficiency tier. EMS sizes for 5,340 ft, prices in writing at a free in-home visit, and offers next-day installs.

Coal Creek Ranch and Centennial Valley homes usually land in the middle of the range. Utility rebates come off these numbers.

REBATES

Rebates in Louisville

Utility: Xcel Energy (gas and electric).

Rebate amounts change each season and are confirmed on your estimate. We file the paperwork.

Financing options →
TIMING

Typical timing in Louisville

Free estimate
Within 48 hours, usually next day
Replacement install
Next day after approval, 1 day on site
Tune-up
Same week, 45 to 60 minutes
No-heat / no-cool call
On site within 4 hours
Book online →
QUESTION

Does altitude change which furnace I need in Louisville?

Yes. Gas furnaces lose about 4% of output per 1,000 feet, so at 5,340 ft a furnace delivers roughly 79% of its rated heat. We size and adjust for that; installers who skip it leave Louisville homes short on heat.

Lower elevation also means higher summer cooling loads, so AC sizing matters as much as furnace sizing.

QUESTION

Which rebates can Louisville homeowners get?

Louisville is on Xcel Energy for gas and electric, so Xcel furnace, AC and heat pump rebates apply. EMS files the Xcel paperwork for you.

QUESTION

Do you offer same-day furnace repair in Louisville?

Yes. Louisville is on our daily routes from the Denver office, same-day appointments are available, and no-heat calls get a technician on site within 4 hours. No trip charges.

Trucks are stocked with ignitors, flame sensors, capacitors and blower motors for the brands common in Louisville homes, so 91% of repairs are finished on the first visit.

ON EVERY SYSTEM WE INSTALL

Four guarantees, in writing, no fine print.

100% Satisfaction Guarantee

If for any reason you are not 100% satisfied with your new system or installation within the first 90 days, we correct the issue to your complete satisfaction. That’s it, no fine print.

Warranty Guarantee

Every system comes with the manufacturer’s standard warranty, and we add extended labor and parts coverage at no charge to you depending on the system you select. Peace of mind, 100% guaranteed.

Price Match + $100 Guarantee

Show us a written quote from any licensed contractor for a comparable system within 90 days of your installation, and we refund the difference plus $100.

90-Day Performance Guarantee

If the system does not heat or cool your home to the unit’s specifications within the first 90 days after installation, we repair or replace it at no charge to you.

Book Louisville furnace or AC service.

Same-day appointments available. 10-year labor, 10-year parts warranty on qualifying systems.

Essential Maintenance ServicesEssential Maintenance Services · Denver office1900 S Quince St Unit B, Denver, CO 802311-844-WEL-DONE · 24/7 dispatch · Office 7 AM to 7 PM

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