245 AC Replacement Contractors in Denver, CO

4.9 avg rating
27,663 total reviews4 offer 24/7 service
Need emergency service? 100 HVAC providers in Denver offer 24/7 availability

Get Free AC Replacement Quotes in Denver, CO

Not ready to call? Tell us what you need and we'll connect you with top-rated contractors.

Free, no obligation. We'll show you top contractors you can contact directly.

Top-Rated AC Replacement Contractors in Denver

#1

Tipping Hat Plumbing, Heating & Electric

4.7(6,968 reviews)

6 of 12 sampled reviewers explicitly mention scheduling speed, with several securing same-day or next-day appointments. Three technicians receive multiple…

1395 S Platte River Dr, Denver, CO 80223
#2

Mighty Plumbing Heating Air and Electric LLC.

4.8(4,286 reviews)
24/7 Highly Rated

All three featured reviewers awarded 5-star ratings, with each naming a specific technician. Common praises include same-day response, fair pricing with…

4730 Paris St #100, Denver, CO 80239
#3

Doctor Fix-It Plumbing, Heating, Cooling & Electric

4.7(3,962 reviews)
24/7

Across thousands of reviews, customers praise the company's transparent pricing and punctual service. Positive reviews frequently mention specific technicians…

363 W Evans Ave, Denver, CO 80223

All AC Replacement Contractors (245 total)

A Better Plumber (an Absolute Plumbing Company)

4.8(3,292)
24/7 Highly Rated

Every reviewer awarded a 5-star rating, with 4 of 5 customer accounts mentioning same-day or expedited…

3980 Quebec St #140, Denver, CO 80207

Ultimate Heating, Cooling, Plumbing & Electric

4.8(1,238)
24/7 Highly Rated

All five named reviewers awarded 5-star ratings, with no lower scores present in the sample. Three customers…

4321 Broadway Unit 3, Denver, CO 80216

AC Transmission

4.9(716)
Highly Rated

All 716 reviews award 5 stars, with forty-three percent of recent clients specifically praising same-day…

6780 Federal Blvd, Denver, CO 80221

Comfort Pros Heating and Air Conditioning

5.0(619)
Highly Rated

All 609 reviewers awarded five stars, a rare achievement in the HVAC industry. Three customers specifically…

7270 Gilpin Way #220, Denver, CO 80229

Midas

4.6(1,082)

Across 1,082 reviews, the 4.6-star average reflects strong satisfaction, with five-star ratings frequently…

3800 Sheridan Blvd, Denver, CO 80212

Great Guys Colorado

4.9(649)
Highly Rated

Six of eight sampled reviewers mention specific technicians by name and praise their diagnostic skill and…

Benjamin Franklin Plumbing®

4.8(599)
Highly Rated

Every reviewer awarded 5 stars, with multiple customers specifically praising same-day service availability,…

Front Range HVAC

4.7(648)

Three reviewers each award 5 stars, with 648 total reviews producing a 4.7 average. Technicians Rob Torrence,…

Prime Plumbing & Heating

4.8(470)
Highly Rated

435 reviews produce a 4.8-star average, with every satisfied customer emphasizing technician professionalism,…

7000 Broadway Suite 205, Denver, CO 80221

Rogers & Sons, Inc.

4.8(346)
Highly Rated

Across 335 reviews, technicians Allan, Marco, Jesus, Alan, Jessie, and Francisco are each mentioned by name…

6202 Beach St, Denver, CO 80221

Urban Autocare

4.9(261)
Highly Rated

261 reviews yield a 4.9 average rating, with every sampled review rating five stars. Multiple reviewers…

3800 Quitman St, Denver, CO 80212

Pipecraft Plumbing, Inc

4.9(228)
Highly Rated

Every reviewer awarded 5 stars, with four of five customers specifically naming their technician and…

AC INC. Roofing | Denver's Trusted Roof Experts

5.0(172)
Highly Rated
6145 Broadway Suite 25, Denver, CO 80216

Top Tier Heating & Cooling

5.0(161)
Highly Rated

All 161 reviews award five stars, establishing perfect client satisfaction. Technicians Tyler and Chase…

Premier Mechanical

5.0(159)
Highly Rated

All 159 reviewers awarded 5 stars, with customers consistently praising owner Jared Carlson's diagnostic…

First String Heating

5.0(157)
Highly Rated

All 157 reviews carry 5-star ratings. Reviewers repeatedly mention transparent pricing that held firm from…

Day & Night Mechanical Solutions, Inc.

4.6(244)

Every reviewer awarded 5 stars, with 239 customers praising same-day response times, transparent pricing, and…

3270 W Alameda Ave, Denver, CO 80219

Advanced Hydronics, Inc.

4.9(170)
Highly Rated

170 reviews yield a 4.9 average rating with all reviewers awarding 5 stars. Multiple clients reference the…

1426 W Maple Ave, Denver, CO 80223

DALCO Heating & Air Conditioning

4.6(206)

Among 203 reviews, customers frequently mention same-day and next-day appointment availability. Technicians…

4610 S Ulster St Suite #150, Denver, CO 80237

Rocky Mountain Heating & Air

5.0(133)
Highly Rated

All seven reviewers gave 5-star ratings, with three specifically naming technicians Jaxon and Jacob. Four…

Todd's Water Heater Repair - Install

5.0(131)
Highly Rated

5-star ratings dominate, with reviewers frequently naming specific technicians, Kelly, Chris, Mike, and…

Easy BreeZy Plumbing

4.9(142)
Highly Rated

All seven sampled reviewers award 5 stars, with most specifically naming technician Ken for his punctuality,…

Same Day Water Heater Pros

5.0(126)
Highly Rated

Eight reviewers collectively award five stars, with five explicitly mentioning Dennis by name and praising…

Papa Pipes Plumbing

5.0(121)
Highly Rated

All 121 reviewers awarded 5 stars, with 8 specifically mentioning same-day or emergency response…

Quality West Heating & Cooling

4.8(146)
Highly Rated

All three sampled reviewers awarded 5-star ratings, with each specifically naming technicians Rob, Ben, or…

1154 S Lipan St, Denver, CO 80223

Larimer St Garage "Milwaukee St Garage"

4.9(120)
Highly Rated

All 120 reviews award 5 stars, with Mike and Joey named across dozens of feedback entries as technicians…

4220 Milwaukee St, Denver, CO 80216

Smart Lion Heating & Cooling

4.9(111)
Highly Rated

111 reviewers have awarded Smart Lion a 4.9-star average, indicating exceptionally strong client…

AC Replacement Costs in Denver

Replacement costs for aging systems in Denver. If repair cost exceeds 50% of replacement, replacement is usually more economical.

ServiceLowAverageHigh
Central AC (3-ton, basic)
$6,160$8,960$12,320
Central AC (4-ton, mid-efficiency)
$8,400$11,760$15,680
Central AC (5-ton, high-efficiency)
$10,640$14,000$17,920
Full HVAC system (AC + furnace)
$12,981$15,042$15,792
Plus ductwork replacement
If existing ducts are aged/leaking
$2,352$3,360$4,480
Repair cost threshold50% rule: if repair > 50% of replacement, replace

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Replacement in Denver, CO: What to Expect

Replacing AC in Denver involves one variable that doesn't apply in most markets: altitude. At 5,280 feet, cooling equipment operates at 10-15% reduced capacity, so replacement decisions require careful sizing — a direct-swap unit may underperform if the original system was already marginal. AC replacement Denver contractors familiar with local load calculations are worth prioritizing. The specialized market has 20 companies focused on replacement work, averaging 4.8 stars across 33,907 reviews.

Central AC replacement in Denver runs $6,160-$12,320 for a 3-ton basic system, $8,400-$15,680 for a 4-ton mid-efficiency unit, and $10,640-$17,920 for a 5-ton high-efficiency setup — reflecting both altitude adjustment and Denver's higher labor costs. Colorado has no statewide HVAC contractor license; replaced systems must be permitted and inspected under local Denver or county jurisdiction.

Customers at Denver's top replacement contractors consistently name specific technicians. Applewood's Victor Olea, Isaac, Jorge, Keith, and Jack each appear in independent reviews — Victor praised for honest, cost-conscious equipment guidance; the others for installation quality. Brothers Plumbing, Heating & Electric's Isaac, Scott, Chandler, and Victor draw repeat mentions across one of Denver's largest review bases. At A Better Plumber (an Absolute Plumbing Company), Gabriel is noted for inspecting aging pipes beyond the original replacement scope and providing a detailed condition report at no extra charge, while Frank receives praise for walking customers through every step of the replacement process.

Frequently Asked Questions

AC replacement in Denver runs $2,352-$17,920 depending on system size and efficiency. A 3-ton basic central AC costs $5,500-$11,000 installed, a 4-ton mid-efficiency system $7,500-$14,000, and a 5-ton high-efficiency unit $9,500-$16,000. Full HVAC replacement (AC + furnace combined) averages $11,590-$14,100.

All HVAC Contractors in Denver, CO

Complete directory of 759 contractors — browse alphabetically

A–Z

A

C

D

P