18 AC Installation Contractors in Westminster, CA
Top-Rated AC Installation Contractors in Westminster
Absolute Airflow Air Conditioning, Heating and Plumbing
“Reviewers consistently cite same-day response and transparent pricing as defining positive experiences. Jonathan Shen describes the team mobilizing within…”
Moffett Plumbing & Air
“Of 5 detailed reviews, 4 mention specific technicians by name and praise their individual expertise rather than generic company service. Multiple reviewers…”
All AC Installation Contractors (18 total)
A1 HVAC Service of Westminster
“Seven of eight reviewers award five stars, with four specifically highlighting diagnostic speed, turnaround…”
Champion Aire Heating & Air Conditioning
“Twenty reviews yield a perfect 5-star average for Champion Aire Heating & Air Conditioning. Customers in…”
Trusted Westminster HVAC
“Every one of the 14 reviews awards 5 stars, with zero complaints recorded across the full set. Across…”
Metro Heating pro
“Among 14 reviews yielding a 4.6-star average, four customers specifically praised rapid scheduling and…”
Sears Heating and Air Conditioning
“9 reviewers explicitly state the business is closed or no longer operating, while 4 reviews report positive…”
Summit AC Installation
“Every reviewer rated Summit AC Installation five stars, with four explicitly confirming same-day service and…”
Air Conditioning Champ
“All three clients awarded five-star ratings, with each review emphasizing thorough diagnostic processes and…”
D Air Conditioning Company
“4 of 8 reviewers report excellent installation outcomes with Lennox systems at below-retail pricing, while an…”
Absolute Airflow
“One positive review highlights Cruz Santana's punctual, professional heating service, while the lone two-star…”
Happy Time Heating & Air Conditioning
“All three reviewers award 5 stars, with every testimonial naming technician Mike and praising his same-day…”
HVAC Expert LLC
“Both reviewers awarded 5 stars and named individual technicians performing the work, with Michael singled out…”
DR HVAC HEATING & COOLING L.L.C.
“The sole reviewer gave a full 5 stars, specifically praising quick arrival times, efficient mini split…”
TI-Mechanical
“A single verified review awards TI-Mechanical a 5-star rating, with Derek Righter commenting "Always…”
AC Installation Costs in Westminster
New central AC installation costs in Westminster, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $138 | $322 | $644 |
Ductless mini-split (single zone) | $1,840 | $4,140 | $7,360 |
Central AC replacement (existing ducts) | $3,220 | $5,980 | $11,040 |
Central AC new install (with ductwork) | $6,440 | $11,040 | $18,400 |
Carrier (residential) | $3,496 | $5,704 | $9,660 |
Trane (residential) | $4,600 | $8,096 | $12,512 |
Lennox (residential) | $3,220 | $5,980 | $11,040 |
Rheem (residential) | $2,944 | $5,060 | $8,280 |
Prices reflect Pacific coast metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Installation in Westminster, CA: What to Expect
Westminster sits within the Los Angeles metro, where the mild Mediterranean climate delivers summer highs around 84 F but the notorious Santa Ana winds can push inland valley temperatures past 100 F, making reliable air conditioning less a luxury and more a seasonal necessity. With 18 licensed contractors serving the area and an average rating of 4.1 drawn from over 5,100 reviews, AC Installation in Westminster reflects a competitive market where homeowners have real options among qualified professionals.
Pricing varies significantly based on system type. Window units range from $138 to $644, while ductless mini-split systems for single zones run $1,840 to $7,360. For whole-home central cooling with existing ductwork, expect costs between $3,220 and $11,040. Every contractor must hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning license from the California Contractors State License Board, ensuring baseline competence and consumer protection.
Customer feedback reveals what distinguishes top performers. Reviewers consistently highlight Absolute Airflow for same-day response and transparent pricing, with Jonathan Shen cited by name for that company's rapid mobilization. Moffett Plumbing & Air earns repeated praise for technicians who communicate clearly and demonstrate individual expertise. Infinity Air HVAC maintains a 4.9-star average across 185 reviews, with every customer posting a perfect 5-star rating and noting consistent professionalism throughout their experience.