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Emergency Plumbers in Oshawa, ON (2026)

Top 50 of 226 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 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 Oshawa: Vaillancourt Plumbing & Drains, 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 Oshawa at a glance

Top emergency plumbers in Oshawa at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Vaillancourt Plumbing & Drains654.9★ (1,375)Oshawa24/7
2PR Plumbing634.8★ (401)Oshawa24/7
3Reliance Heating, Air Conditioning & Plumbing634.8★ (6,966)Oshawa24/7
42 Bro's Plumbing634.9★ (393)Ajax, 5 km away24/7
5Sewer Squad Plumbing634.9★ (1,700)Ajax, 17 km away24/7
6Fast Lane Plumbing624.9★ (195)Oshawa24/7
7Call the Plumbing Doctor Inc. & Call the Foundation Doctor Inc.624.8★ (182)Oshawa24/7
8Precision Plumbing & Drain Service624.9★ (134)Oshawa24/7
9Forward Mechanical Plumbing and Gas624.9★ (111)Oshawa24/7
10D.A.M Wright Contractors Inc614.9★ (98)Oshawa24/7

Call an emergency plumber in Oshawa 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 Oshawa, 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 226 is on the plumbers page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 PR Plumbing

    Based in Oshawa

    63/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 401 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 401 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    957 Grandview St N, Oshawa, ON L1K 2E3
    View profile for PR Plumbing(905) 926-9365

  4. #4 2 Bro's Plumbing

    Based in Ajax, 5 km away

    63/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 393 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 393 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    20 Hawkstone Crescent, Whitby, ON L1N 6R6
    View profile for 2 Bro's Plumbing(905) 556-0790

  6. #6 Fast Lane Plumbing

    Based in Oshawa

    62/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.9★ from 195 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 195 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    111 Industrial Dr Unit 31, Whitby, ON L1N 5Z9
    View profile for Fast Lane Plumbing(289) 372-0330

  12. #12 Marco Plumbing

    Based in Ajax, 5 km away

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 181 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 181 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2020 Wentworth St, Whitby, ON L1N 9A8
    View profile for Marco Plumbing(905) 619-9700

  13. #13 Enercare

    Based in Oshawa

    61/100CR Score

    Ranked #13 because of its Google rating and review volume: 4.9★ from 8,942 Google reviews.

    • 4.9★ from 8,942 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    285 Bloor St W, Oshawa, ON L1J 1R1
    View profile for Enercare(905) 245-2903

  14. #14 ELM Plumbing

    Based in Oshawa

    61/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 50 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    46 Stuart Rd, Courtice, ON L1E 1Y9
    View profile for ELM Plumbing(647) 325-4412

Top 50 of 226 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 Oshawa, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Enercare594.8★ (1,023)34 km
27New Well Plumbing & Heating594.7★ (123)16 km
28Howes Your Plumbing595.0★ (12)In Oshawa
29Fix Plumbing594.9★ (73)15 km
30Oshawa Plumbing and Sewer585.0★ (10)In Oshawa
31ProFlow Plumbing Co.585.0★ (10)In Oshawa
32Extreme Plumbing & Drain Limited584.0★ (25)In Oshawa
33Caldwell Plumbing584.7★ (130)19 km
34ONE CALL PLUMBERS584.6★ (69)13 km
35Limcan Certified Heating and Air Conditioning584.8★ (2,979)6 km
36B&H Plumbing Co.585.0★ (8)In Oshawa
37Weatherall Plumbing584.9★ (46)14 km
38PLUMBER ON DEMAND of AJAX-PICKERING, ON584.7★ (183)23 km
39Golding Plumbing584.9★ (84)20 km
40One Call Plumbers584.9★ (38)14 km
41Prime Drain Plumbing585.0★ (6)In Oshawa
42Rivergate Plumbing and Drain585.0★ (6)In Oshawa
43Wet Bandits Plumbing585.0★ (30)13 km
44Grizzly Plumbing and Heating Inc585.0★ (430)40 km
45Mr. Rooter Plumbing of Scarborough ON584.7★ (479)34 km
46Limcan Certified Heating and Air Conditioning574.8★ (708)In Oshawa
47Blueflow Plumbing and Drain575.0★ (63)24 km
48Drain King Plumbers Oshawa-Whitby575.0★ (4)In Oshawa
49C&L Plumbing575.0★ (4)In Oshawa
50One Call Plumbers574.9★ (156)31 km

How we ranked emergency plumbers in Oshawa

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. 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
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency plumbers in Oshawa: questions

Which plumbers in Oshawa are open 24/7?

25 on this list post 24/7 hours, including Vaillancourt Plumbing & Drains, PR Plumbing, Reliance Heating, Air Conditioning & Plumbing, 2 Bro's Plumbing and Sewer Squad Plumbing.

Who is ranked #1 for emergency plumbing in Oshawa, ON?

Vaillancourt Plumbing & Drains is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency plumbers in Oshawa ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. 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 Oshawa

  1. October 2026: CR Scores recalculated for 226 plumbers serving Oshawa.

More emergency and plumbing pages