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Emergency Plumbers in Hamilton, ON (2026)

Top 50 of 355 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 Hamilton: Birnie Plumbing and 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 Hamilton at a glance

Top emergency plumbers in Hamilton at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Birnie Plumbing and Drains634.5★ (1,264)Hamilton24/7
2Lakeview Plumbing Services635.0★ (233)Hamilton24/7
3In-Out Plumbing Inc635.0★ (190)Hamilton24/7
4Drain Unit625.0★ (172)Hamilton24/7
5PLUMBER ON DEMAND of HAMILTON, ON625.0★ (162)Hamilton24/7
6Reliance Heating, Air Conditioning & Plumbing624.8★ (27,515)Burlington, 13 km away24/7
7a Rescue Rooter624.7★ (224)Hamilton24/7
8Roto-Rooter Plumbing & Water Cleanup624.8★ (157)Hamilton24/7
9Greg's Plumbing and Heating Inc.614.6★ (154)Hamilton24/7
10Mr. Rooter Plumbing of Hamilton614.6★ (138)Hamilton24/7

Call an emergency plumber in Hamilton 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 Hamilton, 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 355 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.

  4. #4 Drain Unit

    Based in Hamilton

    62/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 172 Google reviews, listed on Google as “Drainage service”.

    • 5.0★ from 172 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    500 Stone Church Rd W, Hamilton, ON L9B 1R2
    View profile for Drain Unit(647) 963-1420

  7. #7 a Rescue Rooter

    Based in Hamilton

    62/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.7★ from 224 Google reviews, listed on Google as “Plumber”.

    • 4.7★ from 224 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    440 Lake Ave N, Hamilton, ON L8E 3C2
    View profile for a Rescue Rooter(905) 521-8284

  11. #11 Flow Plumbing

    Based in Hamilton

    61/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 55 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    36 Albert St, Hamilton, ON L8M 2X9
    View profile for Flow Plumbing(905) 981-5010

  21. #21 Groves Wm Ltd

    Based in Hamilton

    60/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.2★ from 155 Google reviews, listed on Google as “Plumber”.

    • 4.2★ from 155 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    800 Rennie St, Hamilton, ON L8H 3R2
    View profile for Groves Wm Ltd(905) 545-1117

  25. #25 BRH Plumbing

    Based in Hamilton

    60/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 24 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    185 Springside Dr, Hamilton, ON L9B 1M8
    View profile for BRH Plumbing(905) 520-7175

Top 50 of 355 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 Hamilton, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26John The Plumber604.7★ (207)14 km
27Plumbing Dunn Right604.9★ (541)26 km
28Mountain Grove Plumbing & Drains604.9★ (100)12 km
29Water Pro Drain605.0★ (62)9 km
30Rooter Guys, Inc.594.4★ (45)In Hamilton
31Civic Plumbing595.0★ (68)11 km
32Drain Rescue Plumbers Hamilton595.0★ (19)In Hamilton
33Boonstra Heating and Air Conditioning594.7★ (4,641)In Hamilton
34Harb Plumbing594.6★ (221)15 km
35Mr Rooter Plumbing of Mississauga ON594.8★ (2,362)38 km
36Rosedale Plumbing of Hamilton595.0★ (16)In Hamilton
37Mr Rooter594.1★ (46)In Hamilton
38PLUMBER ON DEMAND of ANCASTER, ON594.8★ (168)19 km
39ProResults Plumbing Oakville – Residential & Commercial Services595.0★ (117)20 km
40Gauthier Plumbing594.5★ (14)In Hamilton
41LT Plumbing & Drain Services Inc.595.0★ (24)7 km
42Bos Plumbing And Drains Inc585.0★ (107)21 km
43Drain Rescue Plumbers Burlington584.5★ (59)9 km
44Harb Plumbing584.9★ (577)34 km
45Drain Rescue Plumbers Hamilton583.7★ (41)In Hamilton
46MacRory Plumbing Inc.585.0★ (111)23 km
47Urbanexs.ca583.9★ (17)In Hamilton
48Roto-Rooter Plumbing & Water Cleanup584.7★ (38)11 km
49PDM Plumbing585.0★ (36)14 km
50RESOLUTION PLUMBING585.0★ (15)7 km

How we ranked emergency plumbers in Hamilton

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 Hamilton: questions

Which plumbers in Hamilton are open 24/7?

25 on this list post 24/7 hours, including Birnie Plumbing and Drains, Lakeview Plumbing Services, In-Out Plumbing Inc, Drain Unit and PLUMBER ON DEMAND of HAMILTON, ON.

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

Birnie Plumbing and Drains is #1, with a CR Score of 63 out of 100 on emergency weights.

How are emergency plumbers in Hamilton 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 Hamilton

  1. October 2026: CR Scores recalculated for 355 plumbers serving Hamilton.
  2. October 2026: 3 duplicate listings merged.

More emergency and plumbing pages