San Bernardino County, California
Best Local Businesses in Ontario, CA
The top-ranked local businesses in Ontario across 14 categories — ranked by verified ratings and 70,606 customer reviews collected from across the internet.
140
Businesses ranked
14
Categories
4.91★
Avg. rating
70,606
Total reviews
Top-Rated in Ontario
The highest-scoring local businesses across all categories.
Elmer Morales
3,360 reviews
PARTNER REAL ESTATE
1,964 reviews
Nazar Kalayji
1,277 reviews
CMAX Sanitary Services
1,222 reviews
CMAX Sanitary Services
1,222 reviews
Angel and Patty Hernandez
914 reviews
Browse by Category
See the full ranked list in each category.
Best Pest Control in Ontario
10 ranked
- 1Pro Tech Pest Elimination Inc.⭐ 5.0
- 2Bug Baron Exterminator⭐ 5.0
- 3Hooke Termite & Pest Services⭐ 5.0
Best Pool Service in Ontario
10 ranked
- 1WestCoast Pool Service and Repair⭐ 5.0
- 2AQUA POOL PRO⭐ 5.0
- 3Blue Whale Pools⭐ 5.0
Best HVAC in Ontario
10 ranked
- 1Diamond Air Services⭐ 5.0
- 2Advanced Comfort Mechanical Heating & Air Co.⭐ 5.0
- 3Steve's Plumbing Heating & Air Conditioning⭐ 4.9
Best Plumbers in Ontario
10 ranked
- 1High speed rooter & plumbing⭐ 5.0
- 2Royalty Plumbing and Drain⭐ 5.0
- 3Cruz Plumbing & Rooter Services⭐ 5.0
Best Electricians in Ontario
10 ranked
- 1DMT Electric⭐ 5.0
- 2Mr. Electric of Ontario⭐ 5.0
- 3Safe-Way Electric⭐ 4.9
Best Roofers in Ontario
10 ranked
- 1Sandoval Roofing⭐ 5.0
- 2West Meridian Roofing Inc⭐ 5.0
- 3Kaliber Roofing Inc⭐ 4.8
Best Tree Service in Ontario
10 ranked
- 1Isaac's Tree Service⭐ 4.9
- 2Maple Tree Service⭐ 5.0
- 3Empire Tree Service⭐ 4.9
Best Pressure Washing in Ontario
10 ranked
- 1CMAX Sanitary Services⭐ 5.0
- 2MAVS Pressure Wash⭐ 5.0
- 3Pirate Pete's Power Washing⭐ 5.0
Best House Cleaning in Ontario
10 ranked
- 1CMAX Sanitary Services⭐ 5.0
- 2Boss Cleaning Solutions LLC-Junk Removal⭐ 5.0
- 3Zerorez⭐ 5.0
Best Moving Companies in Ontario
10 ranked
- 1PROTEAM MOVING INC⭐ 5.0
- 2Antonio’s Moving Services LLC⭐ 5.0
- 3Fastruck Moving Company⭐ 5.0
Best Attorneys in Ontario
10 ranked
- 1BANDERAS LAW, PC⭐ 4.9
- 2Montgomery Steele Law⭐ 4.9
- 3Centro Legal De Accidentes⭐ 4.9
Best Dentists in Ontario
10 ranked
- 1Star Bright Dental⭐ 5.0
- 2Ontario Chino Dental Center⭐ 5.0
- 3Ontario Dental Center⭐ 4.9
Best Real Estate Agents in Ontario
10 ranked
- 1Elmer Morales⭐ 5.0
- 2Omega Real Estate⭐ 5.0
- 3Nazar Kalayji⭐ 5.0
Best Gyms in Ontario
10 ranked
- 1APE ARENA⭐ 4.9
- 2Kids Empire Ontario⭐ 4.8
- 3Savage Fit Club⭐ 4.9
ZIP Codes & Area Code in Ontario
Ontario, in San Bernardino County, is served by area code 909 and covers 5 ZIP codes.
Area Code
ZIP Codes
- 91758
- 91761
- 91762
- 91764
- 91798
Ontario FAQs
What are the best local businesses in Ontario, CA?+
CaliforniaBusinessesNearMe.com ranks the top local businesses in Ontario across 14 categories — including pest control, house cleaning, HVAC, plumbers, roofers, and dentists — based on verified ratings and review counts collected from across the internet.
How many businesses are ranked in Ontario?+
We currently rank 140 businesses in Ontario, California across 14 service categories, with a combined 70,606 customer reviews.
What county is Ontario in?+
Ontario is located in San Bernardino County, California.
What ZIP codes are in Ontario, CA?+
Ontario covers 5 ZIP codes: 91758, 91761, 91762, 91764, 91798.
What is the area code for Ontario, CA?+
Ontario is served by area code 909.
How are Ontario business rankings determined?+
Each business is scored with a weighted formula that balances its star rating against its number of reviews, so a highly-rated business with many reviews ranks above one with only a few. Rankings use verified data collected from across the internet and are refreshed regularly.
What is the most-reviewed business in Ontario?+
All Pro Cooling, Heating, Plumbing & Electrical is among the most-reviewed in Ontario, with 8,882 reviews and a 4.8-star rating.
Is CaliforniaBusinessesNearMe.com free to use?+
Yes — browsing rankings and finding the best local businesses in Ontario is completely free, with no account required.