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From $50
Up to $500
Closed until Mon, 8:00 AM
In the heart of Ontario, we are Tumia Plumbing Co., Inc. - your dedicated plumbing and bathroom remodeling specialists. We pride ourselves on deli…
The Best Plumbing Company in Ontario
Compare top-rated plumbing providers in Ontario. Profiles include verified reviews, service details, and direct contact options.
Service providers
From $50
Up to $500
Closed until Mon, 8:00 AM
In the heart of Ontario, we are John Lockwood Plumbing – your trusted partners in all plumbing needs. With a customer rating averaging 4.8/5 from …
Plumbing pros near Ontario
These companies are based in nearby cities and serve Ontario.
From $50
Up to $500
Open 8:00 AM – 11:00 PM
At Care One Plumbing Inc. in Chino, we specialize in comprehensive home services, with a focus on plumbing solutions. Whether you're dealing with …
From $50
Up to $500
Open 24/7
At Tallon Plumbing in Chino, we specialize in comprehensive plumbing services. Our team dives deep into every project, ensuring that your home's w…
From $50
Up to $500
Closed until Mon, 7:00 AM
In Upland, we are Know How Plumbing - your reliable plumbing partner. Specializing in plumbing services, our team is equipped to tackle a wide ran…
From $50
Up to $500
Closed until Sun, 9:00 AM
At Supreme Plumbing Inc in Chino, we specialize in comprehensive plumbing services. We're not just plumbers; we're your reliable partners for all …
From $50
Up to $500
Closed until Mon, 7:00 AM
In Rancho Cucamonga, we are Backflow Parts USA - your reliable plumbing services partner. Specializing in Plumbing Services within our community, …
From $50
Up to $500
Closed until Sun, 7:00 AM
In the heart of Rancho Cucamonga, we are All City Plumbing, Air & Electrical - your reliable partner for a wide array of home services. Specializi…
From $50
Up to $500
Closed until Sun, 7:00 AM
In the heart of Chino, we are Drains & Plumbing Repair - your go-to team for all plumbing needs. With a reputation that shines brightly, our 5-sta…
From $50
Up to $500
Closed until Mon, 8:00 AM
At Chino's Drain First - Plumbing Services, we understand the frustration that a plumbing issue can cause in your home. That's why we're here to p…
From $50
Up to $500
Open 24/7
At Upland's Tankless Water Heater Repair and Plumbing, we pride ourselves on delivering efficient and reliable plumbing solutions to homeowners in…
From $50
Up to $500
Open 24/7
In Rancho Cucamonga, we're Allstar Plumbing, Heating & Air – your reliable partner for comprehensive home services. With a strong focus on plumbin…
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Verified Plumbing in Ontario, CA
We show only active businesses that pass moderation. Results are specific to Ontario and nearby service areas, and inactive profiles are removed to keep the list current.
Real reviews for plumbing
Ratings and reviews come from customers who used the service. Compare plumbing pros in Ontario by experience, responsiveness, and value before you reach out.
Local-first search in Ontario
Filter by neighborhood, check locations on the map, and find providers close to home or work in Ontario. Listings are refreshed regularly — October 2026.
Neighboring cities of Ontario
The same listings in the closest cities — providers there often take jobs in Ontario too. Mileage is the approximate distance from Ontario.
- Chino 2.5 mi
- Upland 2.9 mi
- Rancho Cucamonga 3.2 mi
- Montclair 4.0 mi
- Pomona 5.9 mi
- Alta Loma 5.9 mi
- Mira Loma 5.9 mi
- Chino Hills 6.2 mi
- Fontana 6.4 mi
- Eastvale 6.5 mi
- Jurupa Valley 7.2 mi
- Claremont 7.4 mi
What Ontario customers ask first
Looking for plumbing in Ontario? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.
Before you hire
- Read the most recent reviews for your specific type of job.
- Ask about licensing and insurance when required for this trade.
- Get a written estimate for work over a few hundred dollars.
- Confirm availability and any trip or emergency fees upfront.
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What Ontario customers say about local pros
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Michael Orefice
They do awesome work ! For water main pipeline
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Blake Bailey
Fast response, great service, good price.
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luis anaya
good experience with the plumbers
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Robert Lavery
Way to much for shower valve replacement , nearly $900
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Polo Hernandez
Excellent service and good price. I would highly recommended
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Janet Lopez
Very professional and got the job done very efficiently. Would definitely recommend!
