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Emergency Plumbers in St. Thomas, ON (2026)

Top 50 of 110 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

24 of the 50 plumbers on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

The short answer

  1. 1

    #1 for emergency plumbing in St. Thomas: Elgin County Plumbing, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency plumbers in St. Thomas at a glance

Top emergency plumbers in St. Thomas at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Elgin County Plumbing925.0★ (301)St. Thomas24/7
2DrainCam Plumbing914.9★ (329)London, 1 km away24/7
3Jumbo Plumbing914.9★ (318)London, 1 km away24/7
4Mr. Rooter Plumbing of London ON914.8★ (2,083)London, 18 km away24/7
5Munroe Plumbing co.905.0★ (78)St. Thomas24/7
6Total Plumbing Solutions894.9★ (78)St. Thomas24/7
7Superior Plumbing & Heating of St. Thomas884.6★ (73)London, 1 km away24/7
8Reliance London Heating, Air Conditioning & Plumbing874.8★ (12,217)London, 29 km away24/7
9Rivulet Plumbing Solutions875.0★ (42)St. Thomas24/7
10London Plumbing874.8★ (332)London, 24 km away24/7

Call an emergency plumber in St. Thomas now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency plumbers in St. Thomas, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 110 is on the plumbers page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  3. #3 Jumbo Plumbing

    Based in London, 1 km away

    91/100CR Score

    Ranked #3 because of its Google rating and availability: 4.9★ from 318 Google reviews, open 24/7.

    • 4.9★ from 318 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    36 St Catharine St unit 3, St Thomas, ON N5P 2V8
    View profile for Jumbo Plumbing(226) 667-3511

  10. #10 London Plumbing

    Based in London, 24 km away

    87/100CR Score

    Ranked #10 because of its Google rating and availability: 4.8★ from 332 Google reviews, open 24/7.

    • 4.8★ from 332 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    79 Stanley St, London, ON N6C 1B3
    View profile for London Plumbing(226) 270-0405

  20. #20 Jumbo Plumbing

    Based in London, 25 km away

    84/100CR Score

    Ranked #20 because of its Google rating and availability: 5.0★ from 35 Google reviews, open 24/7.

    • 5.0★ from 35 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    510 William St unit 3, London, ON N6B 3E6
    View profile for Jumbo Plumbing(519) 805-2623

  21. #21 Sobek Plumbing

    Based in London, 21 km away

    84/100CR Score

    Ranked #21 because of its Google rating and availability: 4.6★ from 34 Google reviews, open 24/7.

    • 4.6★ from 34 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1155 Commissioners Rd E, London, ON N5Z 4X9
    View profile for Sobek Plumbing(519) 808-1398

Top 50 of 110 plumbers by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

plumbers in St. Thomas, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26J Thompson Plumbing835.0★ (28)20 km
27Mels Plumbing Inc834.9★ (23)19 km
28Salliss Plumbing & Heating834.8★ (271)23 km
29Roy Inch & Sons Home Services by Enercare834.7★ (1,490)18 km
30Iron Horse Plumbing834.4★ (27)23 km
31Nova Drain & Plumbing Services London825.0★ (8)21 km
32U Need A Plumber824.1★ (44)22 km
33London Drain Service824.6★ (11)23 km
34PlumbingFX825.0★ (3)16 km
35PMD Excavation Construction825.0★ (46)In St. Thomas
36A.D Plumbing825.0★ (28)37 km
37M & K Heating and Air Conditioning814.6★ (1,614)23 km
38Superior Plumbing & Heating of London814.6★ (250)24 km
39D & S Plumbing814.1★ (36)29 km
40Orzech Heating and Cooling814.8★ (272)18 km
41Practical Plumbing Co Ltd814.2★ (16)29 km
42B.R.'s Plumbing and Heating804.8★ (236)37 km
43George's Plumbing and Heating804.5★ (55)20 km
44D. Andersen Plumbing795.0★ (82)23 km
45Strong plumbing and heating795.0★ (4)20 km
46Pope Plumbing (R W Pope & Sons Ltd)774.9★ (36)23 km
47Superior Plumbing & Heating of Tillsonburg774.7★ (21)38 km
48Basement Waterproofing Pros764.8★ (9)18 km
49Shorty's Plumbing & Bathroom Renovations765.0★ (26)23 km
50Superior Plumbing & Heating of Ingersoll764.5★ (19)38 km

How we ranked emergency plumbers in St. Thomas

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency plumbers in St. Thomas: questions

Which plumbers in St. Thomas are open 24/7?

24 on this list post 24/7 hours, including Elgin County Plumbing, DrainCam Plumbing, Jumbo Plumbing, Mr. Rooter Plumbing of London ON and Munroe Plumbing co..

Who is ranked #1 for emergency plumbing in St. Thomas, ON?

Elgin County Plumbing is #1, with a CR Score of 92 out of 100 on emergency weights.

How are emergency plumbers in St. Thomas ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the plumber arrives?

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

How many emergency plumbers here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for St. Thomas

  1. October 2026: CR Scores recalculated for 110 plumbers serving St. Thomas.

More emergency and plumbing pages