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RESIDENTIAL HVAC · DOUGLAS COUNTY · 6,400 ft

Furnace and AC Service in Castle Pines, CO

Castle Pines is large custom and semi-custom homes, often with two or three systems, finished walkouts and long duct runs through big attics. The Village at Castle Pines and the older Castle Pines North streets have 1990s and early-2000s equipment reaching end of life all at once, and owners here want variable-speed, zoned, quiet systems rather than the cheapest swap. At 6,400 feet it is also the highest community on the south side, so altitude sizing matters more than anywhere else nearby.

25HVAC jobs completed in Castle Pines
1.2 hrsaverage response time
6systems installed this year
2five-star reviews from Castle Pines
CURRENT OFFERS IN CASTLE PINES

Current coupons for Castle Pines 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 Castle Pines at a glance.

At 6,400 ft a gas furnace delivers roughly 74% of its rated output, so every system we install in Castle Pines is sized and adjusted for altitude. Front Range furnaces run six to seven months a year, which is why most Castle Pines homeowners choose 96% two-stage equipment or a cold-climate heat pump. Castle Pines 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
Castle Pines, Douglas County
SERVICES
Furnace & AC replacement, repair, tune-ups, heat pumps, maintenance plan
NEW SYSTEM
$11,000 to $24,000 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 · CORE Electric Cooperative electric
ELEVATION
6,400 ft · every system sized for altitude
PHONE
1-844-WEL-DONE · 24/7 dispatch
WHAT WE DO HERE

HVAC services in Castle Pines

Every job is dispatched from our Denver office with same-day appointments and no trip charge.
REPLACEMENTFurnace & AC replacement in Castle PinesThree written options at a free in-home visit, next-day installs by our own crews. Every system sized for 6,400 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 6,400 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 CASTLE PINES

Which Castle Pines neighborhoods do you serve?

All of Castle Pines, including The Village at Castle Pines, Castle Pines North, The Canyons, Forest Park, Hidden Pointe, Daniels Gate and Romar West.

  • The Village at Castle Pines5 jobs
  • Castle Pines North4 jobs
  • The Canyons3 jobs
  • Forest Park3 jobs
  • Hidden Pointe2 jobs
  • Daniels Gate2 jobs
Don't see your neighborhood?We cover all of Castle Pines and the rest of Douglas County. No trip charge.Call 1-844-WEL-DONE
Furnace + AC replacementThe Village at Castle Pines · 2026
Cold-climate heat pumpCastle Pines North · 2026
Tune-up visitThe Canyons · 2026
Water heater + furnaceForest Park · 2026
CASTLE PINES HVAC QUESTIONS

Costs, rebates and timing in Castle Pines.

Colorado furnace cost guide →
MOST ASKED

How much does a new furnace cost in Castle Pines?

Because Castle Pines homes are larger and often zoned, furnace replacements run $6,000 to $11,000 per system and furnace-plus-AC systems $11,000 to $24,000 per system, with multi-system discounts. EMS prices every system in writing at a free in-home visit.

Variable-speed, zoned systems with communicating thermostats are the most common choice here.

REBATES

Rebates in Castle Pines

Utility: Xcel Energy gas · CORE Electric Cooperative electric.

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

Financing options →
TIMING

Typical timing in Castle Pines

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

Can you replace multiple systems at once?

Yes. Two- and three-system homes are routine for us. We schedule them back to back with one project manager and keep at least one system running at all times.

QUESTION

Does altitude matter for Castle Pines homes?

Yes, more than anywhere else we serve. At 6,400 feet a gas furnace delivers about 74% of its rated output, so sizing must account for it. We also specify cold-climate heat pumps here because design temperatures are lower than in Denver.

QUESTION

Which rebates can Castle Pines homeowners get?

Castle Pines is generally on Xcel Energy for gas and CORE Electric Cooperative for electric. Xcel gas rebates apply to furnaces; CORE runs its own AC and heat pump rebates. We confirm your providers at the estimate.

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 Castle Pines 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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