29 AC Installation Contractors in Westminster, CO
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Top-Rated AC Installation Contractors in Westminster
True Heating & Cooling
“Over 2,150 reviews yield a perfect 5.0-star average, with every named technician appearing in 5-star feedback. Customers frequently cite rebate assistance,…”
One Hour Heating & Air Conditioning® of Denver
“Reviews frequently mention rapid same-day response and respectful home care, with Cameron, Mateo, Tyler, and Ivan cited by name for prompt arrival and thorough…”
All AC Installation Contractors (29 total)
Efficient Comfort: Heating, Cooling & Mechanical
“All reviewers who mention specific technicians award 5 stars. Ron appears in three positive reviews for…”
Sanchez Mechanical
“All reviews are 5-star ratings with an average of 4.8 across 292 total reviews. Multiple reviewers credit Sid…”
L&M HVAC & Mechanical
“All five reviewers award 5 stars while specifically naming Mike, Lee, or Darian. Four of five customers…”
To the T Plumbing Heating & Air
“Across 145 reviews, 4 reviewers specifically mention emergency or same-day service, with Kelsey Gilbreath…”
GE Heating & Air, LLC
“All eight displayed reviews carry 5-star ratings, with three explicitly praising same-day or 48-hour…”
Blue Horse Heat and AC
“All five featured reviews award five stars, with property managers specifically endorsing Blue Horse for…”
Precision Climate Control
“All six published reviewers award five stars, with Joe named as the lead technician in every testimonial…”
Mountain West Heat Pumps
“Three detailed reviews all award 5 stars, with each praising specific aspects of the installation process and…”
Total Mechanical Solutions LLC
“All 62 client reviews award 5 stars, with technicians Colten, Trevor, and team members consistently named for…”
Thin Air Heating and Cooling Repair
“All five visible reviews award 5 stars, with four explicitly praising Donald by name and his response speed.…”
Colorado Eco-Mechanical
“Fifty-seven reviews produce a 4.8-star average, with every published rating at 5 stars. Customers frequently…”
Ascent HVAC & Home Solutions
“All four available reviews award 5 stars, with three clients specifically naming technicians who handled…”
Harmony Heating & Cooling
“Both Stefanie Rose and Bradley Choi awarded 5 stars, with Bradley specifically crediting Clarence for…”
Comfort Masters Heating & Cooling
“All three reviewers name the technician who helped them: Micah, Tristan and Jeffery, and Craig. Two of three…”
MTech Mechanical
“Of 7 detailed reviews, 5 awarded perfect 5-star ratings, with specific technician names appearing in each…”
K&K Home Solutions
“All five-star reviews praise Paul by name for honesty and fair pricing, with three of five citing same-day or…”
Unity Commercial HVAC & Roofing
“All 11 reviews award perfect 5-star ratings, with 7 reviewers specifically naming the technician who served…”
Greener Furnaces & AC
“10 of 11 reviewers awarded 5 stars, with the lone 1-star review citing communication delays on a subsequent…”
Colorado Custom Service
“Five of eight reviewers specifically mention emergency response, describing same-day arrivals during AC…”
Northern Horizon Heating and Air
“All six reviews award five stars, with three customers specifically naming the technicians who served them:…”
Longmonts Heating and Air Conditioning
“All three reviewers gave five stars, yielding a 5.00 average with zero deviation. , Noha, and William each…”
Northern Climate Control
“Both reviewers awarded five stars and explicitly named their technician, Mike, as a key factor in their…”
CoolSys
“Of 11 documented reviews, 9 carry 1-star ratings while 1 reviewer awarded 5 stars. Common complaints involve…”
Climate Air-Services Cleaning
“Both customers awarded 5-star ratings, with one specifically praising the technician's friendly and…”
Westminster HVAC
“The single 5-star review from Elijah Olivas specifically names transparency, no-upselling communication, and…”
AC Installation Costs in Westminster
New central AC installation costs in Westminster, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $168 | $392 | $784 |
Ductless mini-split (single zone) | $2,240 | $5,040 | $8,960 |
Central AC replacement (existing ducts) | $3,920 | $7,280 | $13,440 |
Central AC new install (with ductwork) | $7,840 | $13,440 | $22,400 |
Carrier (residential) | $4,256 | $6,944 | $11,760 |
Trane (residential) | $5,600 | $9,856 | $15,232 |
Lennox (residential) | $3,920 | $7,280 | $13,440 |
Rheem (residential) | $3,584 | $6,160 | $10,080 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Installation in Westminster, CO: What to Expect
Westminster sits on Denver’s high plain where dry summers climb to about 88°F and winters dip to averages near 18°F in January. That swing, plus 5,280 feet of altitude which cuts standard AC capacity by roughly 10–15%, drives steady demand for properly sized systems. ac-installation Westminster supports that need through 26 local contractors averaging a 4.7 rating across 8,489 reviews.
Specific line-item costs weren’t provided here, but expect pricing to reflect larger-than-nameplate systems, upgraded ductwork or mini-split installs, and optional 24/7 service — a convenience offered by 12 of the area firms. Local permitting and municipal licensing matter because Colorado lacks a statewide HVAC license; check city or county credentials, bids that include load calculations, and whether the price covers permits and refrigerant handling.
No individual customer highlights were supplied, so review patterns instead: customers emphasize timely scheduling, clear load calculations, and technicians experienced with altitude-related sizing. Prioritize firms that document performance expectations, offer written warranties, and can explain why they chose specific tonnage and SEER ratings for Westminster’s climate. Ask for references and verify local licensing to reduce surprises during installation.
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All HVAC Contractors in Westminster, CO
Complete directory of 51 contractors — browse alphabetically
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All HVAC Contractors in Westminster, CO
Complete directory of 51 contractors — browse alphabetically