221 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Waterloo: Hy-Pro Plumbing & Drain Cleaning of Kitchener & Waterloo, CR Score 63/100; 4.8★ from 457 Google reviews; open 24/7.
Best for emergencies (open 24/7): Tiger Plumbing, posts 24/7 hours; ranked #2 of 221.
Most-reviewed: Aire One Heating & Cooling KW, 9,448 Google reviews at 4.8★, the most of 221 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
221 Waterloo plumbers are ranked here by CR Score, from ten published factors. 88 are open 24/7, 114 open Saturdays and 106 open Sundays, based on posted hours. The median Google rating is 4.9★ across 221 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Hy-Pro Plumbing & Drain Cleaning of Kitchener & Waterloo | 63 | 4.8★ (457) | Kitchener, 3 km away | 24/7 | Overall |
| 2 | Tiger Plumbing | 63 | 4.8★ (389) | Kitchener, 2 km away | 24/7 | Emergencies |
| 3 | Tri City Plumbing Inc. | 63 | 4.9★ (280) | Kitchener, 3 km away | 24/7 | — |
| 4 | Mr. Rooter Plumbing Of Kitchener ON | 63 | 4.7★ (878) | Kitchener, 8 km away | 24/7 | — |
| 5 | TRH Plumbing & Heating Inc | 62 | 4.9★ (149) | Waterloo | 24/7 | — |
| 6 | DrainTech Plumbing Kitchener | 62 | 4.9★ (173) | Kitchener, 4 km away | 24/7 | — |
| 7 | PLUMBER ON DEMAND of KITCHENER, ON | 62 | 4.9★ (190) | Kitchener, 5 km away | 24/7 | — |
| 8 | Eco-Pro Plumbing & Drains Inc. | 61 | 4.9★ (550) | Cambridge, 18 km away | 24/7 | — |
| 9 | Reliance Heating, Air Conditioning & Plumbing | 61 | 4.7★ (2,268) | Waterloo | 24/7 | — |
| 10 | Mr. Rooter Plumbing Of Cambridge, ON | 61 | 4.8★ (748) | Cambridge, 20 km away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Waterloo
Based in Kitchener, 3 km away
Ranked #1 because of its Google rating and trade focus: 4.8★ from 457 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 2 km away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 389 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 3 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 280 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 8 km away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 878 Google reviews, listed on Google as “Plumber”.
Based in Waterloo
Ranked #5 because of its Google rating and trade focus: 4.9★ from 149 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 4 km away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 173 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 5 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 190 Google reviews, listed on Google as “Plumber”.
Based in Cambridge, 18 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 550 Google reviews, listed on Google as “Plumber”.
Based in Waterloo
Ranked #9 because of its Google rating and review volume: 4.7★ from 2,268 Google reviews.
Based in Cambridge, 20 km away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 748 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 7 km away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 318 Google reviews, listed on Google as “Plumber”.
Based in Cambridge, 2 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Plumber”.
Based in Cambridge, 20 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 257 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 5 km away
Ranked #14 because of its Google rating and review volume: 4.8★ from 9,448 Google reviews, the most in Waterloo.
Based in Kitchener, 8 km away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 195 Google reviews, listed on Google as “Plumber”.
Based in Cambridge, 19 km away
Ranked #16 because of its Google rating and review volume: 4.7★ from 9,230 Google reviews.
Based in Cambridge, 18 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 139 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 4 km away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 129 Google reviews, listed on Google as “Plumber”.
Based in Norfolk County, 9 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Plumber”.
Based in Guelph, 23 km away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 568 Google reviews, listed on Google as “Plumber”.
Based in Guelph, 17 km away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 186 Google reviews, listed on Google as “Plumber”.
Based in Cambridge, 25 km away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 368 Google reviews, listed on Google as “Plumber”.
Based in Waterloo
Ranked #23 because of its Google rating and trade focus: 4.4★ from 62 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 5 km away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Plumber”.
Based in Kitchener, 10 km away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 444 Google reviews, listed on Google as “Plumber”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 221 ranked plumbers here; the rest are on their profiles.
20 more plumbers within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| 4Point Trade Solutions | 5.0★ (1) | In Waterloo |
| Alpine Plumbing Solutions | 5.0★ (2) | In Waterloo |
| Basem Plumbing and Heating | 4.7★ (42) | 22 km |
| Boehmers/Cronin Emery Home Services by Enercare | 4.8★ (1,534) | 12 km |
| CW Mechanical Services Inc | 3.5★ (2) | 15 km |
| DAS PLUMBING & DRAINS | 5.0★ (11) | 12 km |
| Dave Hurst Plumbing & Heating Inc. | 4.0★ (147) | 7 km |
| Grant Mechanical Inc. | 5.0★ (10) | 8 km |
| Guest Plumbing & HVAC Kitchener - Commercial & Residential Services | 5.0★ (2) | 2 km |
| Hoss plumbing | In Waterloo | |
| Macker Mechanical | 5.0★ (2) | 15 km |
| Mike The Plumber | 1.0★ (2) | 3 km |
| ProPlumbFix | In Waterloo | |
| Ray's Plumbing and Maintenance | In Waterloo | |
| Ropol Plumbing | 5.0★ (2) | 12 km |
| The Waterloo Plumber | In Waterloo | |
| Tiger Plumbing Inc | 4.3★ (6) | 5 km |
| Veitch Contracting Ltd | 3.7★ (3) | In Waterloo |
| Ventilation HVAC Kitchener | 5.0★ (2) | 5 km |
| Waterloo Region Plus Plumbing | 5.0★ (2) | 2 km |
US national ranges converted to CAD, not adjusted for Waterloo. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | CA$1,240 | CA$1,890 | CA$2,570 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 221 Waterloo plumbers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Waterloo data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |