7 AC Installation Contractors in Westlake Village, CA

3.6 avg rating
1,017 total reviews1 offer 24/7 service
Need emergency service? 7 HVAC providers in Westlake Village offer 24/7 availability

Top-Rated AC Installation Contractors in Westlake Village

#1

iPermit

5.0(935 reviews)
Highly Rated

All seven sampled reviews award 5 stars, with each mentioning a specific technician by name. Four reviewers specifically describe Joseph, while one references…

31225 La Baya Dr #213, Westlake Village, CA 91362
Call
#2

Heating Cooling and Beyond, Inc.

5.0(23 reviews)

Twenty-three reviews collectively praise fast response times, with multiple customers noting same-day arrival during emergencies including heat wave failures.…

31139 Via Colinas #304, Westlake Village, CA 91362
Call
#3

Johnstone Supply

3.5(22 reviews)

Among 7 detailed reviews, 4 rate 1 star citing return policy frustrations and restricted public access, while 3 rate 5 stars praising staff professionalism and…

31240 La Baya Dr, Westlake Village, CA 91362
Call

All AC Installation Contractors (7 total)

Calypso Heating & Air Conditioning Inc.

5.0(5)

All 5 reviewers awarded 5 stars, with 3 specifically naming technician Joaquin for his communication,…

2985 E Hillcrest Dr Suite 215, Westlake Village, CA 91362
Call

Immediate Heating & AC Repair Westlake Village

5.0(5)
24/7
30829 E Thousand Oaks Blvd, Westlake Village, CA 91362
Call

Patriot Heating & Air Conditioning

2.0(27)

2 of 4 detailed reviews mention Keith by name as helpful, while negative reviews cite furnace installation…

31220 La Baya Dr Ste 328, Westlake Village, CA 91362
Call

Evergreen Air Conditioning Repair Service

0.0
31450 Agoura Rd, Westlake Village, CA 91361
Call

AC Installation Costs in Westlake Village

New central AC installation costs in Westlake Village, by system type and brand.

ServiceLowAverageHigh
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 Westlake Village, CA: What to Expect

The climate in Thousand Oaks and surrounding Conejo Valley communities creates a steady need for climate control, though the Pacific Ocean moderates temperatures compared to inland valleys. Summer highs reach 89 F with low humidity, making reliable cooling essential from July through September, while winter lows near 38 F trigger heating demand between December and February. This year-round but moderate HVAC demand supports a local market served by roughly 8 contractors holding an average rating of 3.8 across more than 1,000 customer reviews, with about two offering round-the-clock availability. For homeowners searching for AC Installation in Westlake Village, the combination of these seasonal peaks and the area's established contractor base shapes what to expect from the process.

Pricing varies significantly based on the system homeowners select. Window units run between $138 and $644, making them the most affordable option for single-room cooling. A ductless mini-split system for a single zone costs $1,840 to $7,360, offering greater efficiency and flexibility without ductwork. Central AC replacement using existing ductwork ranges from $3,220 to $11,040, representing the standard choice for whole-home cooling in most houses built with forced-air systems. California law requires any contractor performing this work to hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the state licensing board, ensuring basic competency and accountability for the installation.

Review patterns reveal what separates the top-performing contractors in this market. iPermit maintains a perfect 5-star average across seven sampled reviews, with each one naming a specific technician, including Joseph mentioned four times and a female technician noted for her thorough duct inspection. Call us for Air Conditioning Assistance draws praise specifically for repair outcomes, with customers reporting problems resolved completely and system performance restored. Heating Cooling and Beyond, Inc. receives consistent recognition for speed, with multiple reviewers describing same-day arrival during emergencies including heat wave failures, and technicians Amir, Roy, and Eyal each receiving individual mentions. These detailed references suggest homeowners value both technical competence and reliable responsiveness when selecting an installation provider.

Frequently Asked Questions

New AC installation in Westlake Village costs $138-$18,400 depending on system type. Window units run $150-$700, ductless mini-splits $2,000-$8,000 per zone, central AC replacement with existing ducts $3,500-$12,000, and full new installs with ductwork $7,000-$20,000. SEER rating, tonnage, and brand significantly affect pricing.