14 HVAC Service Contractors in Cotati, CA

4.3 avg rating
2,618 total reviews2 offer 24/7 service

Top-Rated HVAC Service Contractors in Cotati

#1

Elevated Comfort

4.9(1,041 reviews)
Highly Rated

Every reviewer awarded a 5-star rating, with 5 of 5 named customers specifically praising the technician who served them. Three reviews mention same-day or…

374 Blodgett St Suite 4, Cotati, CA 94931
Call
#2

ClimatePro

5.0(565 reviews)
Highly Rated

All 565 reviews award five stars, a unanimous sentiment rare in home service trades. Reviewers consistently mention specific product benefits including cooler…

374 Blodgett St #1, Cotati, CA 94931
Call
#3

Next Day Air & Heating

5.0(535 reviews)
24/7 Highly Rated

530 client reviews produce a perfect 5-star average, with technicians Rohan, Aaron, Stefan, and Kailen receiving named recognition across multiple positive…

651 Portal St #6, Cotati, CA 94931
Call

All HVAC Service Contractors (14 total)

Loud and Clear Music

4.8(294)
Highly Rated

Every reviewer awards 5 stars, with 294 customers praising the staff's knowledge, fair pricing, and…

8000 Old Redwood Hwy, Cotati, CA 94931
Call

Hulbert Heating & Air Conditioning Inc

5.0(61)

All 58 reviews award 5 stars, with Doug named in multiple testimonials for his communication and project…

427 Aaron St, Cotati, CA 94931
Call

Delta T Energy Consulting

4.9(30)

All six reviewers award five stars, with Roy specifically mentioned across four separate reviews for his…

651 Portal St Ste 3, Cotati, CA 94931
Call

McPhail Fuel Company

3.8(47)

Six reviewers award perfect 5-star ratings, with customers specifically naming technicians Shaun, Steve,…

300 Alder Ave, Cotati, CA 94931
Call

Jared’s Mobile RV Services

4.7(17)

Six of six published reviews award a perfect 5-star rating, with multiple reviewers specifically noting…

7991 Old Redwood Hwy, Cotati, CA 94931
Call

RV FIX AND GO

5.0(11)
24/7

All eight reviewers awarded 5 stars, with each narrative mentioning specific technician names (Sergei,…

141 Helman Ln, Cotati, CA 94931
Call

BioTherm Solutions

3.9(8)

Three reviews document specific technician interactions: Jim and his team receive praise for multi-year…

476 Primero Ct, Cotati, CA 94931
Call

Mc Clure R Electric Co

5.0(4)
706 Portal St D, Cotati, CA 94931
Call

Rainbow Electric Corporation

4.0(3)

Two of three reviews award five stars, with customers praising diagnostic persistence and same-day response.…

625 W Cotati Ave, Cotati, CA 94931
Call

HVAC Controls Corp

3.5(2)
896 Madrone Ave, Cotati, CA 94931
Call

R.J. Mechanical, Inc.

0.0
6815 Redwood Dr D, Cotati, CA 94931

HVAC Service Costs in Cotati

General HVAC service pricing across maintenance, repair, and installation in Cotati.

ServiceLowAverageHigh
Service call / diagnostic
$71$114$190
Routine tune-up (single system)
$67$119$190
Standard repair (avg)
$143$570$1,140
Major repair (compressor, heat exchanger)
$1,425$2,375$3,325
New system installation (mid-range)
$6,175$9,975$13,300
Full HVAC replacement
AC + furnace combined
$11,011$12,759$13,395

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

HVAC Service in Cotati, CA: What to Expect

Cotati sits in the heart of Sonoma County wine country, roughly 55 miles north of San Francisco. Pacific marine air keeps summers mild, with July highs averaging 79 F and only about 18 days pushing above 90 F each year. Yet inland positioning means occasional heat events climb past 100 F, and winters are cool and rainy with lows around 37 F and roughly 30 inches of annual rainfall from October through April. Heating runs five to six months annually, dominated by gas furnaces, while most older homes lack central AC. Installation rates have climbed sharply since the 2017 Tubbs Fire prompted widespread rebuilds across the region. Twenty contractors serve the area with an average rating of 4.3 across nearly 3,000 reviews, and four offer around-the-clock service for HVAC Service in Cotati.

California requires HVAC contractors to hold the C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the CSLB. Pricing reflects this professional standard. A service call or diagnostic runs $71 to $190, a routine tune-up for a single system costs $67 to $190, and standard repairs average $143 to $1,140 depending on the issue. These figures represent what homeowners in the Cotati market typically pay for licensed, reliable service from qualified technicians.

The customer feedback tells a clear story. Elevated Comfort earned a 4.9 rating with every reviewer awarding a full five stars, and five clients specifically praised the technician who handled their call, with three noting same-day or same-hour response times. ClimatePro maintains a perfect 5.0 average across 565 reviews, with clients noting cooler interior temperatures and improved system performance. Next Day Air & Heating also holds a 5.0 average from 530 reviews, with technicians Rohan, Aaron, Stefan, and Kailen receiving named recognition across multiple accounts, and clients consistently describing honest assessments and fair pricing.

Frequently Asked Questions

HVAC service pricing in Cotati ranges from diagnostic calls around $75-$200 to full system replacements at $11,000-$14,000. Routine tune-ups run $70-$200, standard repairs average $150-$600, and major component replacements (compressor, heat exchanger) can reach $2,800-$3,500.