Top 3 Plumbing Contractors in Ontario

Compare the highest-rated plumbing professionals in Ontario, California. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Mr. Rooter Plumbing of Ontario

4.8
(280 reviews)
Verified

A highly-rated, locally-owned franchise of the national Mr. Rooter brand. They are known for their professional, uniformed technicians, upfront pricing, and a strong focus on customer service. They emphasize both residential and commercial plumbing solutions and offer 24/7 emergency service.

1145 W Phillips St, Ontario, CA 91762

Specialties & Features

Emergency plumbing repairs
Drain cleaning and sewer services
Water heater installation and repair

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
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#2

Allstar Plumbing & Rooter

4.7
(180 reviews)
Verified

A family-owned and operated business known for its rapid response times and honest, straightforward service. They have built a strong reputation in the Inland Empire for handling everything from minor leaks to major repipes and sewer line replacements.

1537 N Euclid Ave, Upland, CA 91786 (Serves Ontario directly)

Specialties & Features

Pipe installation and replacement
Leak detection and repair
Bathroom and kitchen plumbing

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
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#3

Rooter Solutions

4.6
(150 reviews)
Verified

Specializes in advanced drain and sewer services, including trenchless pipe repair, which minimizes property damage. They also provide a full suite of general plumbing services and are praised in reviews for their technical expertise and effective, long-term solutions.

9029 Utica Ave #105, Rancho Cucamonga, CA 91730 (Serves Ontario directly)

Specialties & Features

Drain cleaning and sewer services
Trenchless pipe replacement
Commercial plumbing services

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
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Why These Are the Top Plumbing Contractors in Ontario

** The plumbing market in Ontario, California, is robust and highly competitive, characteristic of a major logistics and distribution hub within the Inland Empire. The average quality of service is high, as contractors must maintain strong reputations to compete effectively. Customers have access to a mix of long-established local companies and reputable national franchises. **Competition Level:** High. There are numerous providers, forcing businesses to compete on service quality, response time, and pricing. **Typical Pricing:** Pricing is competitive but aligns with Southern California averages. A standard service call typically ranges from $80 - $150. Emergency or after-hours services command a premium. Major projects like water heater replacements can range from $1,200 to $3,500+, and full repipes can be $5,000+, depending on the home's size. The most reputable companies provide transparent, upfront quotes to avoid surprises. **Notable Trend:** Many top-rated providers in the area, like Rooter Solutions, heavily promote and specialize in "trenchless" sewer repair technology, which is a significant selling point for homeowners looking to avoid extensive landscape or concrete demolition.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Ontario regulations and climate