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Best HVAC companies in Castle Rock, CO

The highest-scoring HVAC company in and near Castle Rock is Behold Heating and Cooling | Denver HVAC (score 81, 5.0 stars from 487 Google reviews). 3 companies meet the 5 Star standard within 25 km.

Last updated Sep 25, 2026How we rank
  1. 1

    Behold Heating and Cooling | Denver HVAC

    5.0 · 487 Google reviewsEnglewood, CO
    Background-checked
    81SCORE
    (303) 900-5331 WebsiteFull profile
  2. 2

    Bell Plumbing, Heating, Cooling & Electrical

    4.7 · 4,396 Google reviewsCentennial, CO
    74SCORE
    (720) 740-0350 WebsiteFull profile
  3. 3

    Parker Heating & AC Repair

    4.8 · 664 Google reviewsParker, CO
    73SCORE
    (720) 894-3358 WebsiteFull profile

We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Castle Rock qualify, they'll appear here automatically.

Compare the top 3

Top HVAC companies in Castle Rock by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1Behold Heating and Cooling | Denver HVAC815.0487–Englewood
2Bell Plumbing, Heating, Cooling & Electrical744.74,396–Centennial
3Parker Heating & AC Repair734.8664–Parker

HVAC companies in Castle Rock: quick answers

Who is the highest-rated HVAC company in Castle Rock, CO?

Behold Heating and Cooling | Denver HVAC has the highest 5 Star Score among HVAC companies in and near Castle Rock: 81 out of 100, with a 5.0 star Google rating from 487 reviews.

How many 5 Star HVAC companies serve Castle Rock?

3 HVAC companies meet our standard within 25 km of Castle Rock: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 3 have 5,547 Google reviews between them, averaging 4.83 stars.

How are these HVAC companies ranked?

By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.

HVAC companies near Castle Rock

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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.