Best Plumbers in St Thomas, Ontario

There are 17 plumbers in St Thomas, Ontario in the MSARCH directory, with an average Google rating of 4.7★. They are ranked by review-weighted rating, and each profile shows ratings, hours, services and contact details.

The most-reviewed plumber is Jumbo Plumbing with 573 Google reviews, while Elgin County Plumbing holds one of the top ratings at 5.0★.

17Plumbers
4.7★Avg rating
2,128Reviews

Updated July 2026 · Ranked by review-weighted Google rating

Elgin County Plumbing

St Thomas, ON

★★★★★ 5.0 (361)

Delta Plumbers of St Thomas

St Thomas, ON

★★★★★ 5.0 (110)

Munroe Plumbing co.

St Thomas, ON

★★★★★ 5.0 (68)

Trade Tech Mechanical Services Inc.

St Thomas, ON

★★★★★ 5.0 (30)

Jumbo Plumbing

St Thomas, ON

★★★★½ 4.9 (573)

DrainCam Plumbing

St Thomas, ON

★★★★½ 4.9 (372)

Total Plumbing Solutions

St Thomas, ON

★★★★½ 4.9 (95)

Hurn Plumbing and Heating

St Thomas, ON

★★★★½ 4.9 (26)

National Plumbing Solutions

St Thomas, ON

★★★★½ 4.9 (19)

DCM Plumbing Service

St Thomas, ON

★★★★★ 5.0 (4)

Pulse Plumbing & Drain Services St. Thomas

St Thomas, ON

★★★★★ 5.0 (1)

Superior Plumbing & Heating of St. Thomas

St Thomas, ON

★★★★½ 4.7 (76)

Ambrose Plumbing & Heating Ltd

St Thomas, ON

★★★★½ 4.6 (133)

Sean O’Connor Plumbing Inc

St Thomas, ON

★★★★☆ 4.3 (6)

EMCO St. Thomas

St Thomas, ON

★★★★☆ 4.3 (6)

Millcreek Plumbing and Mechanical Ltd.

St Thomas, ON

★★★★☆ 4.0 (4)

Masco Canada Ltd

St Thomas, ON

★★★★☆ 4.0 (244)

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Plumbers in nearby cities

Aylmer 3 London 24 Ingersoll 7 Tillsonburg 5 Strathroy 6 Woodstock 13

How many plumbers are in St Thomas?

MSARCH lists 17 plumbers in St Thomas, Ontario, with an average Google rating of 4.7 out of 5.

Who is the best-rated plumber in St Thomas?

Elgin County Plumbing is among the highest-rated plumbers in St Thomas, with 5.0★ from 361 Google reviews. Compare the full ranked list above before you choose.

How much does a plumber cost in St Thomas?

Pricing varies by job, so the best approach is to compare quotes. Shortlist two or three highly-rated plumbers from the list above, confirm they are licensed and insured, and request a written estimate from each.

How are these plumbers ranked?

MSARCH ranks St Thomas plumbers by their Google star rating, weighted by review count so a company with hundreds of reviews outranks one with only a few. All data is sourced from Google Maps and listings are not paid placements.