Top Picks · Fairfield
Best HVAC Companies in Fairfield, CA
Rated and reviewed by real customers. Compare prices, read reviews, and call the top pros near you — for free.
As of June 2026, RatingsNearMe ranks 11 hvac companies in Fairfield, CA by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness. The top-ranked is Same Day Heating, Cooling, Plumbing with a 4.9-star rating from 591 Google reviews and an RNM Score of 98/100. Also in the top tier: Dooley's Heating and Air and US Air Conditioning Distributors. The average rating across all listed hvac companies in Fairfield is 4.9 stars from 72 reviews per business on average.
HVAC service in Fairfield: $75–$150/hr for repairs; full system replacement $4,000–$12,000 depending on size and efficiency.
Rankings updated June 10, 2026 · RNM Score = ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · Not paid placement.
Fairfield, CA is home to a variety of HVAC (heating, ventilation, and air conditioning) service providers. Consumers in the area can find companies that offer installation, repair, and maintenance for residential and commercial HVAC systems.
- ✓Fairfield HVAC companies provide services for heating, cooling, and indoor air quality needs
- ✓Consumers can find local HVAC providers for new system installation, repair, and routine maintenance
- ✓Researching multiple HVAC companies in Fairfield can help find the best fit for a customer's needs and budget
How to Choose a HVAC Companie in Fairfield
What to look for
- • Licensed and insured HVAC contractors
- • Technicians with EPA certification for refrigerant handling
- • Companies that provide upfront pricing and written estimates
- • Contractors with experience servicing the Fairfield, CA climate
Questions to ask
- • How long have you been serving the Fairfield, CA area?
- • Can you provide references from past Fairfield customers?
- • What type of warranty or guarantee do you offer on your work?
Red flags
- ⚠ Contractors who do not have a physical business address in Fairfield
- ⚠ Companies that cannot provide proof of licensing and insurance
- ⚠ Technicians who seem inexperienced or unable to properly diagnose issues
In California, HVAC contractors must be licensed by the Contractors State License Board and carry liability insurance. It's important to verify a contractor's license and insurance coverage before hiring.
Local Market Snapshot
11
Businesses listed
4.9★
Avg rating
72
Avg reviews
Jun 10, 2026
Last updated
Top Rated HVAC Companies
Fairfield’s top-rated HVAC company with 4.9 stars from nearly 600 reviews.
200 American Way, Windsor, CA 95492, USAHVAC Companies Rankings in Fairfield, CA
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | Same Day Heating, Cooling, Plumbing200 American Way, Windsor, CA 95492, USA | 4.9★ | 591 |
| #2 | Dooley's Heating and Air1435A N Texas St, Fairfield, CA 94533, USA | 4.9★ | 66 |
| #3 | US Air Conditioning Distributors815 Chadbourne Rd #110, Fairfield, CA 94534, USA | 4.9★ | 27 |
| #4 | Fairfield Heating & Air Conditioning709 Jackson St, Fairfield, CA 94533, USA | 4.6★ | 9 |
| #5 | Mckinley HVAC Contractor Fairfield1605 San Diego St, Fairfield, CA 94533, USA | 5.0★ | 20 |
| #6 | AirFlow HVAC Experts613 E Travis Blvd, Fairfield, CA 94533, USA | 4.9★ | 23 |
| #7 | A-1 COMFORT HEATING AND AIR280 Woolner Ct, Fairfield, CA 94533, USA | 5.0★ | 4 |
| #8 | Kazen Custom Heating & Air1076 Horizon Dr STE 15, Fairfield, CA 94533, USA | 4.6★ | 11 |
| #9 | Golden State Comfort SystemsCapitola Way, Fairfield, CA 94534, USA | 5.0★ | 19 |
| #10 | CM Mechanical Heating & Air Conditioning1704 Carswell Ln, Suisun City, CA 94585, USA | 5.0★ | 3 |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated June 2026
All HVAC Companies in Fairfield
709 Jackson St, Fairfield, CA 94533, USA
1605 San Diego St, Fairfield, CA 94533, USA
1076 Horizon Dr STE 15, Fairfield, CA 94533, USA
Capitola Way, Fairfield, CA 94534, USA
1704 Carswell Ln, Suisun City, CA 94585, USA
1070 Horizon Dr STE M, Fairfield, CA 94533, USA
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HVAC Companies in Fairfield, CA — Compared
| # | Business | RNM Score | Rating | Reviews |
|---|---|---|---|---|
| 1 | Same Day Heating, Cooling, Plumbing | 98/100 | 4.9 ★ | 591 |
| 2 | Dooley's Heating and Air | 91/100 | 4.9 ★ | 66 |
| 3 | US Air Conditioning Distributors | 86/100 | 4.9 ★ | 27 |
| 4 | Fairfield Heating & Air Conditioning | 64/100 | 4.6 ★ | 9 |
| 5 | Mckinley HVAC Contractor Fairfield | 75/100 | 5.0 ★ | 20 |
| 6 | AirFlow HVAC Experts | 74/100 | 4.9 ★ | 23 |
| 7 | A-1 COMFORT HEATING AND AIR | 67/100 | 5.0 ★ | 4 |
| 8 | Kazen Custom Heating & Air | 77/100 | 4.6 ★ | 11 |
| 9 | Golden State Comfort Systems | 86/100 | 5.0 ★ | 19 |
| 10 | CM Mechanical Heating & Air Conditioning | 78/100 | 5.0 ★ | 3 |
Ranked by RatingsNearMe Score · ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · June 2026
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Frequently Asked Questions — HVAC Companies in Fairfield
How do I find the best hvac companies in Fairfield?
Look for businesses with 4.5+ stars, 50+ verified reviews, proper licensing and insurance, and transparent pricing. The top-ranked hvac companies in Fairfield on this page are scored by our algorithm that weighs ratings, review count, and profile completeness.
Are hvac companies in Fairfield licensed and insured?
Licensing requirements vary by trade and state. For most home service contractors, CA requires both a state license and liability insurance. Always ask any contractor for proof of current insurance and a copy of their license number before work begins — you can verify most licenses on your state licensing board's website.
How much do hvac companies charge in Fairfield, CA?
Prices vary by scope, materials, and contractor experience. Use the free quote form on this page to request estimates from multiple local pros simultaneously. Getting 3+ quotes is the single most effective way to avoid overpaying.
What should I look for when hiring a hvac companies in Fairfield?
Verify licensing and insurance, read recent reviews on multiple platforms, ask for a written estimate before work starts, confirm they pull permits when required, and check references from recent local projects. Featured businesses on this page are ranked by verified ratings and review quality.
How are the hvac companies on this page ranked?
Rankings use a transparent algorithm: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Featured Partner listings have paid for enhanced visibility but must still earn their position through real customer reviews — sponsored listings are clearly labeled.
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How Rankings Work on This Page
Every hvac companies on RatingsNearMe is scored transparently: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Businesses labeled exclusive or premium are Featured Partners — they have paid for enhanced visibility but must still rank through real customer reviews. We cap sponsored boosts so bad businesses can never buy the top spot.
Editorial notice: Ratings are based on publicly available data from Google Business listings. Consumers should independently verify licensing, insurance, and credentials before hiring any service provider. Last updated: June 10, 2026.
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