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Emergency HVAC Contractors in Highlands Ranch, CO (2026)

Top 50 of 857 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Highlands Ranch: Plumbline Services, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Highlands Ranch at a glance

Top emergency HVAC contractors in Highlands Ranch at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Plumbline Services654.7★ (9,085)Centennial, 8 mi away24/7
2Elkhorn Heating, Air Conditioning, Plumbing & Electrical654.9★ (1,799)Littleton, 4 mi away24/7
3888 Heating & Air Conditioning644.9★ (1,310)Centennial, 5 mi away24/7
4ROX Heating & Air644.9★ (732)Littleton, 2 mi away24/7
5Aim High HVAC645.0★ (760)Littleton, 4 mi away24/7
6Allen Service634.8★ (2,301)Denver, 9 mi away24/7
7JC Mechanical Heating & Air Conditioning LLC634.8★ (586)Littleton, 2 mi away24/7
8Nytech Heating, Cooling, and Plumbing635.0★ (2,828)Castle Rock, 13 mi away24/7
9Premier Heating and Air634.7★ (1,502)Greenwood Village, 6 mi away24/7
10Priority Plumbing and Heating - Littleton634.8★ (963)Littleton, 6 mi away24/7

Call an emergency HVAC contractor in Highlands Ranch now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Highlands Ranch, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 857 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Highlands Ranch

    #1 Plumbline Services

    Based in Centennial, 8 mi away

    65/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.7★ from 9,085 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 9,085 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7000 S Potomac St, Centennial, CO 80112
    View profile for Plumbline Services(720) 853-4555

  4. #4 ROX Heating & Air

    Based in Littleton, 2 mi away

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 732 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 732 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1745 Shea Center Dr 4th Floor, Littleton, CO 80129
    View profile for ROX Heating & Air(720) 468-0689

  5. #5 Aim High HVAC

    Based in Littleton, 4 mi away

    64/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 760 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 760 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9933 Titan Park Cir, Littleton, CO 80125
    View profile for Aim High HVAC(720) 445-4497

  6. #6 Allen Service

    Based in Denver, 9 mi away

    63/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.8★ from 2,301 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,301 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2101 S Platte River Dr unit b 2, Denver, CO 80223
    View profile for Allen Service(720) 806-2364

  9. #9 Premier Heating and Air

    Based in Greenwood Village, 6 mi away

    63/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.7★ from 1,502 Google reviews, listed on Google as “Heating contractor”.

    • 4.7★ from 1,502 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8000 E Prentice Ave STE C5, Greenwood Village, CO 80111
    View profile for Premier Heating and Air(720) 954-2224

  11. #11 PS Cool Heat

    Based in Littleton, 3 mi away

    63/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.9★ from 405 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 405 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4466 E Hunterwood Dr, Littleton, CO 80130
    View profile for PS Cool Heat(720) 285-0145

  19. #19 HomeSmart

    Based in Centennial, 5 mi away

    62/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.6★ from 889 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 889 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6675 South Kenton Street Suite 100, Centennial, CO 80111
    View profile for HomeSmart(855) 463-7526

  20. #20 Emporia Home Services

    Based in Littleton, 9 mi away

    62/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 535 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 535 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7901 Shaffer Pkwy STE 100, Littleton, CO 80127
    View profile for Emporia Home Services(303) 909-2018

Top 50 of 857 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Highlands Ranch, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26The Bee Heat & AC624.9★ (466)8 mi
27Jim Needham Heating Cooling Plumbing and Drain624.9★ (212)5 mi
28Simply Mechanical, AC, Furnace & Boiler Repair624.9★ (388)8 mi
29Coyote HVAC614.7★ (576)8 mi
30One Nation Plumbing, Heating & Air615.0★ (259)8 mi
31ARS / Rescue Rooter614.5★ (3,114)15 mi
32Moore Heating & Air Conditioning Inc614.9★ (490)11 mi
33Plumbline Services614.9★ (1,917)18 mi
34Fix-it 24/7 Plumbing, Heating, Air & Electric614.7★ (4,159)19 mi
351st Choice Pro Services614.8★ (230)7 mi
36B&B Heating & Air Conditioning, Inc.614.9★ (1,352)17 mi
37Horizon Services Plumbing, Heating & Air - Englewood614.6★ (395)7 mi
38Parker Heating & AC Repair614.8★ (512)11 mi
39PerfectTemp Heating, Air & Electric614.9★ (55)In Highlands Ranch
40Lou’s Heating & Cooling615.0★ (296)11 mi
41Supreme Home Services614.9★ (103)4 mi
42Ultimate Heating, Cooling, Plumbing & Electric614.8★ (1,215)15 mi
43Royal's Heating & Air INC614.8★ (99)3 mi
44All A/C & Heating Solutions, Inc615.0★ (377)13 mi
45Warm Welcome Heating, Cooling, & Plumbing615.0★ (90)5 mi
46Climate Masters Heating, Air & Electric604.9★ (72)4 mi
47Roots Heating & Air605.0★ (266)12 mi
48Apple Aire Heating & Cooling604.8★ (1,179)18 mi
49PureComfort Heating, Air & Electric604.8★ (49)1 mi
50Right Away Heating604.9★ (302)12 mi

How we ranked emergency HVAC contractors in Highlands Ranch

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Highlands Ranch: questions

Which HVAC contractors in Highlands Ranch are open 24/7?

25 on this list post 24/7 hours, including Plumbline Services, Elkhorn Heating, Air Conditioning, Plumbing & Electrical, 888 Heating & Air Conditioning, ROX Heating & Air and Aim High HVAC.

Who is ranked #1 for emergency heating and cooling in Highlands Ranch, CO?

Plumbline Services is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Highlands Ranch ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Highlands Ranch

  1. October 2026: CR Scores recalculated for 857 hvac contractors serving Highlands Ranch.
  2. October 2026: 4 duplicate listings merged.

More emergency and heating and cooling pages