Best Plumbers in St Thomas

We have reviewed and ranked the best local plumbing companies in St Thomas

DrainCam Plumbing Verified by Yext

4.9 (372 Reviews)Write a Review
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85 Chester Street, St Thomas, ON

(226) 564-3775

Website

Diagnostics lead at DrainCam Plumbing of St. Thomas — sewer jetting, precise line locating and trenchless repairs that spare the lawn — alongside leak and sump pump work. Its 373 reviews average 4.9 stars. Read More

Why this 69.8/100 trust score — the facts behind each pointThe facts behind your trust score
Trust Score69.8/100

Jumbo Plumbing Verified by Yext

4.9 (590 Reviews)Write a Review
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36 St Catharine St unit 3, St Thomas, ON

(226) 667-3511

Website

St. Thomas's go-to residential shop for water heater repair, drain cleaning and 24-hour emergency calls, Jumbo Plumbing also keeps a second base in London. Workmanship fronts 577 reviews averaging 4.9 stars. Read More

Why this 68.4/100 trust score — the facts behind each pointThe facts behind your trust score
Trust Score68.4/100

Ambrose Plumbing & Heating Verified by Uberall

4.6 (134 Reviews)Write a Review
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1227 Talbot Street, St Thomas, ON

(519) 631-5011

Website

Based in St Thomas, ON, Ambrose Plumbing & Heating has earned 4.6★ across 134 reviews. In its reviews, professionalism, communication, workmanship come up again and again. Our 10-factor review gives it an N49 Trust Score of 57.4/100. Altogether it carries ~134 reviews across 1 platforms. Read More

Why this 57.4/100 trust score — the facts behind each pointThe facts behind your trust score
Trust Score57.4/100
4.8★ average rating
1,096 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 St Thomas’s Top Plumbers

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

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 St Thomas 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.