Same Day · Ontario
Same-Day HVAC Companies in Ontario, CA
Can't wait a week? These hvac companies in Ontario offer same-day or next-day appointments. Call now to check availability.
As of May 2026, RatingsNearMe ranks 13 hvac companies in Ontario, CA by verified customer ratings and review volume. The highest-rated is AC Plus Heating & Air with a 5.0-star rating from 2,623 verified reviews. Also in the top tier: AAVCO Plumbing, Heating & Air Conditioning - Fontana and RKM Heating and Air Conditioning. The average rating across all listed hvac companies in Ontario is 4.9 stars from 628 reviews per business on average.
HVAC service in Ontario: $75–$150/hr for repairs; full system replacement $4,000–$12,000 depending on size and efficiency.
Rankings updated May 17, 2026 · Scored by ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · Not paid placement.
Local Market Snapshot
13
Businesses listed
4.9★
Avg rating
628
Avg reviews
May 17, 2026
Last updated
Top Rated HVAC Companies
AC Plus Heating & Air
14615 Palmdale Rd, Victorville, CA 92392, USA
AAVCO Plumbing, Heating & Air Conditioning - Fontana
7655 Sierra Ave., Fontana, CA 92336, USA
RKM Heating and Air Conditioning
6236 River Crest Dr a, Riverside, CA 92507, USA
HVAC Companies Rankings in Ontario, CA
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | AC Plus Heating & Air14615 Palmdale Rd, Victorville, CA 92392, USA | 5.0★ | 2,623 |
| #2 | AAVCO Plumbing, Heating & Air Conditioning - Fontana7655 Sierra Ave., Fontana, CA 92336, USA | 4.9★ | 1,089 |
| #3 | RKM Heating and Air Conditioning6236 River Crest Dr a, Riverside, CA 92507, USA | 4.9★ | 1,180 |
| #4 | Macawsome Heating & Cooling4375 E Lowell St Suite N, Ontario, CA 91761, USA | 4.7★ | 131 |
| #5 | NexGen HVAC & Plumbing1428 S Grove Ave Unit B, Ontario, CA 91761, USA | 4.7★ | 547 |
| #6 | DS HVAC LLC1138 W Ralston St c, Ontario, CA 91762, USA | 5.0★ | 4 |
| #7 | Northstar Plumbing, Heating and Air Conditioning1351 S Grove Ave #110, Ontario, CA 91761, USA | 4.7★ | 331 |
| #8 | Advanced Comfort Mechanical Heating & Air Co.615 N Benson Ave, Upland, CA 91786, USA | 5.0★ | 122 |
| #9 | Superior Mechanical Heating & Air Inc.1131 E Central Ave, San Bernardino, CA 92408, USA | 4.9★ | 236 |
| #10 | Diamond Air Services1630 E Francis St ste c, Ontario, CA 91761, USA | 5.0★ | 419 |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated May 2026
All HVAC Companies in Ontario
Macawsome Heating & Cooling
4375 E Lowell St Suite N, Ontario, CA 91761, USA
NexGen HVAC & Plumbing
1428 S Grove Ave Unit B, Ontario, CA 91761, USA
DS HVAC LLC
1138 W Ralston St c, Ontario, CA 91762, USA
Northstar Plumbing, Heating and Air Conditioning
1351 S Grove Ave #110, Ontario, CA 91761, USA
Advanced Comfort Mechanical Heating & Air Co.
615 N Benson Ave, Upland, CA 91786, USA
Superior Mechanical Heating & Air Inc.
1131 E Central Ave, San Bernardino, CA 92408, USA
Diamond Air Services
1630 E Francis St ste c, Ontario, CA 91761, USA
Tario Air Conditioning & Heating
11193 Central Ave, Ontario, CA 91762, USA
AC Plus Heating & Cooling
8351 Rochester Ave ste 103b, Rancho Cucamonga, CA 91730, USA
Friends & Family HVAC
1611 Pomona Rd Suite 240, Corona, CA 92878, USA
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Frequently Asked Questions — HVAC Companies in Ontario
How do I find the best hvac companies in Ontario?
Look for businesses with 4.5+ stars, 50+ verified reviews, proper licensing and insurance, and transparent pricing. The top-ranked hvac companies in Ontario on this page are scored by our algorithm that weighs ratings, review count, and profile completeness.
Are hvac companies in Ontario 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 Ontario, 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 Ontario?
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: May 17, 2026.
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