Best Plumbers in Thornhill

We have reviewed and ranked the best local plumbing companies in Thornhill

MT Catch Basin Toronto

With 5★ across 9 reviews, MT Catch Basin Toronto is one of Thornhill, ON’s steadier plumbing names. Customers most often highlight its workmanship, tidiness, professionalism. It earns an N49 Trust Score of 64.4/100 in our independent review. Mentions 18 service areas on site (e.g. ajax, aurora, east york, etobicoke, markham). Read More

Why this 64.4/100 trust score — the facts behind each pointThe facts behind your trust score

Trust Score64.4/100

Prompt Plumbing and Drainage

4.6 (22 Reviews)Write a Review

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21 Ruggles Avenue, Thornhill, ON

(647) 496-1164

Website

Based in Thornhill, ON, Prompt Plumbing and Drainage has earned 4.6★ across 22 reviews. In its reviews, punctuality, communication, professionalism come up again and again. Our 10-factor review gives it an N49 Trust Score of 55.5/100. Altogether it carries ~22 reviews across 4 platforms. Read More

Why this 55.5/100 trust score — the facts behind each pointThe facts behind your trust score

Trust Score55.5/100

New Water Plumbing Verified by Uberall

0.0 (0 Reviews)Write a Review

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34 Doncaster, Thornhill, ON

(905) 731-2066

Website

New Water Plumbing is a well-regarded plumbing provider in Thornhill, ON. The team covers plumbing work and small appliances work across the area. Read More

4.8★ average rating

31 total reviews across the top 20

Curated by AI

Ranked by the N49 Trust Score — reviews, multi-platform reputation, local visibility and online presence, not paid placement.

About Thornhill’s Top Plumbers

Looking for a trusted plumbing company in Thornhill? Plumbing.ca helps homeowners and businesses compare plumbing companies serving Thornhill.

Our rankings use the N49 Trust Score, which considers factors such as Google reviews, review quality and recency, business reputation, years in business, website quality and other public trust signals.

Companies are not ranked simply because they advertise more or rank higher on Google.

Businesses cannot pay to improve their Trust Score or organic ranking. Sponsored listings, where available, are always clearly identified.

Plumbing Frequently Asked Questions

Q. How are Thornhill plumbers ranked?

Plumbers are evaluated using the N49 Trust Score, which combines customer reviews, reputation, review activity, business credibility and other public trust signals.

Q. Can a company pay to rank higher?

No. Sponsored placements do not affect a company’s Trust Score or organic ranking.

Q. Do all plumbers offer 24-hour emergency service?

No. Check each company’s profile to confirm the services and areas they cover.

Q. How often are the rankings updated?

The rankings are reviewed and refreshed as reviews and business information change.