10+ Years · San Marcos
Experienced HVAC Companies in San Marcos, CA
Experience matters. These hvac companies in San Marcos have years of proven work behind them — and the reviews to back it up.
As of June 2026, RatingsNearMe ranks 5 hvac companies in San Marcos, CA by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness. The top-ranked is Home Run Heating and Air with a 4.9-star rating from 45 Google reviews and an RNM Score of 89/100. Also in the top tier: Champion Air Conditioning & Heating and Shock HVAC & Airduct Cleaning San Marcos. The average rating across all listed hvac companies in San Marcos is 4.8 stars from 38 reviews per business on average.
HVAC service in San Marcos: $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.
Local Market Snapshot
5
Businesses listed
4.8★
Avg rating
38
Avg reviews
Jun 10, 2026
Last updated
Top Rated HVAC Companies
San Marcos HVAC with a 4.9-star rating from 45 glowing customer reviews.
1219 Linda Vista Dr, San Marcos, CA 92078, USATrusted by hundreds of local customers, this HVAC company holds a solid 4.1-star rating.
120 N Pacific St STE A9, San Marcos, CA 92069, USARated 5.0 stars from 2 reviews, this San Marcos HVAC provider earns exceptional customer praise.
1007 Goldfinch Way, San Marcos, CA 92078, USAHVAC Companies Rankings in San Marcos, CA
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | Home Run Heating and Air1219 Linda Vista Dr, San Marcos, CA 92078, USA | 4.9★ | 45 |
| #2 | Champion Air Conditioning & Heating120 N Pacific St STE A9, San Marcos, CA 92069, USA | 4.1★ | 101 |
| #3 | Shock HVAC & Airduct Cleaning San Marcos1007 Goldfinch Way, San Marcos, CA 92078, USA | 5.0★ | 2 |
| #4 | CALCOAST HVAC L.L.C.1615 Grandon Ave apt 201, San Marcos, CA 92078, USA | 5.0★ | 2 |
| #5 | San Marcos Heating & Air Conditioning340 Rancheros Dr, San Marcos, CA 92069, USA | — | — |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated June 2026
All HVAC Companies in San Marcos
5.0 stars from two Google reviews in San Marcos.
1615 Grandon Ave apt 201, San Marcos, CA 92078, USA
No reviews yet for this San Marcos HVAC company, so consider checking back later.
340 Rancheros Dr, San Marcos, CA 92069, USA
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HVAC Companies in San Marcos, CA — Compared
| # | Business | RNM Score | Rating | Reviews |
|---|---|---|---|---|
| 1 | Home Run Heating and Air | 89/100 | 4.9 ★ | 45 |
| 2 | Champion Air Conditioning & Heating | 71/100 | 4.1 ★ | 101 |
| 3 | Shock HVAC & Airduct Cleaning San Marcos | 68/100 | 5.0 ★ | 2 |
| 4 | CALCOAST HVAC L.L.C. | 64/100 | 5.0 ★ | 2 |
| 5 | San Marcos Heating & Air Conditioning | 3/100 | — | 0 |
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 San Marcos
How do I find the best hvac companies in San Marcos?
Look for businesses with 4.5+ stars, 50+ verified reviews, proper licensing and insurance, and transparent pricing. The top-ranked hvac companies in San Marcos on this page are scored by our algorithm that weighs ratings, review count, and profile completeness.
Are hvac companies in San Marcos 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 San Marcos, 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 San Marcos?
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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