67/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 627 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 627 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 200 McGuire St, Cobourg, ON K9A 0H9
Best Plumbers in Cobourg, ON (2026)
52 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Cobourg: Guardian Plumbing and Drain, CR Score 67/100; 4.8★ from 627 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Pollard's Plumbing, posts 24/7 hours; ranked #3 of 52.
- 9
Most-reviewed: Comfort Zone Heating and Air Conditioning, 834 Google reviews at 4.9★, the most of 52 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
52 Cobourg plumbers are ranked here by CR Score, from ten published factors. 20 are open 24/7, 30 open Saturdays and 25 open Sundays, based on posted hours. The median Google rating is 4.9★ across 52 rated businesses.
Top 10 plumbers in Cobourg at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Guardian Plumbing and Drain | 67 | 4.8★ (627) | Cobourg | 24/7 | Overall |
| 2 | Stadtke Plumbing & Heating Ltd. | 66 | 4.9★ (736) | Cobourg | Sat · Sun | — |
| 3 | Pollard's Plumbing | 64 | 5.0★ (100) | Cobourg | 24/7 | Emergencies |
| 4 | Doyle Home Services | 64 | 4.3★ (437) | Cobourg | 24/7 | — |
| 5 | Paradigm Plumbing Inc | 62 | 4.9★ (42) | Cobourg | 24/7 | — |
| 6 | Arnold & Sons Plumbing Water Treatment | 62 | 4.8★ (50) | Cobourg | 24/7 | — |
| 7 | ONE CALL PLUMBERS | 62 | 4.6★ (69) | Cobourg | 24/7 | — |
| 8 | Boxall Plumbing & Drains | 62 | 5.0★ (32) | Cobourg | 24/7 | — |
| 9 | Comfort Zone Heating and Air Conditioning | 62 | 4.9★ (834) | Cobourg | 24/7 | Most reviews |
| 10 | Kelly Pro Plumbing | 61 | 4.9★ (62) | Cobourg | Sat · Sun | — |
The 52 best plumbers in Cobourg, ranked
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.
Based in Cobourg
66/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 736 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 736 Google reviews
- Hours
- Mon–Sat 6 AM–6 PM · Sun 8 AM–4 PM
- Address
- 1-8783 Dale Rd, Cobourg, ON K9A 4J9
Based in Cobourg
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 100 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10613 Community Centre Rd, Baltimore, ON K0K 1C0
Based in Cobourg
64/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.3★ from 437 Google reviews, listed on Google as “Plumber”.
- 4.3★ from 437 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1316 County Rd 28, Fraserville, ON L0A 1C0
Based in Cobourg
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 42 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Cobourg
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 50 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 14407 County Rd 2, Cramahe, ON K0K 1H0
Based in Cobourg
62/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.6★ from 69 Google reviews, listed on Google as “Plumber”.
- 4.6★ from 69 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 179 Ronald Hooper Ave, Bowmanville, ON L1C 4T5
Based in Cobourg
62/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Cobourg
62/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 834 Google reviews, the most in Cobourg.
- 4.9★ from 834 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 701 Brook Rd N, Cobourg, ON K9A 0R7
Based in Cobourg
61/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 62 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 34 Tanner Industrial Park Unit 3, Campbellford, ON K0L 1L0
Based in Cobourg
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Cobourg
61/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 274 Paudash St, Keene, ON K9J 6X8
Based in Cobourg
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 250 Lake Rd Unit 101, Bowmanville, ON L1C 4P8
Based in Port Hope, 11 km away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 72 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
- Address
- 273 Ridout St, Port Hope, ON L1A 1P6
Based in Cobourg
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 19 Donald Powell Cres, Newcastle, ON L1B 0K8
Based in Cobourg
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Plumber”.
- 4.7★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#17 B and B Plumbing
Based in Cobourg
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 37 Google reviews
- Hours
- Mon–Sat 9 AM–6 PM · Sun closed
Based in Ajax, 30 km away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Drainage service”.
- 4.9★ from 70 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#19 EJ Mac Plumbing
Based in Peterborough, 38 km away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 89 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 89 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Peterborough, ON K9J 5T6
Based in Cobourg
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 59 Google reviews
- Hours
- Mon–Tue 7:15 AM–4:15 PM · Wed 7:30 AM–4:15 PM · Thu–Fri 7:15 AM–4:15 PM · Sat–Sun closed
- Address
- 86 Prince Edward St Unit 5, Brighton, ON K0K 1H0
Based in Cobourg
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 53 Google reviews
- Hours
- Mon 8 AM–3 PM · Tue–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 81 Hannah Rd, Bailieboro, ON L0A 1G0
Based in Cobourg
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.5★ from 55 Google reviews, listed on Google as “HVAC contractor”.
- 4.5★ from 55 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1040 Division St Unit 221, Cobourg, ON K9A 5Y5
#23 Herb's Plumbing
Based in Cobourg
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 58 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 500 Ball St Unit 3, Cobourg, ON K9A 5P3
Based in Cobourg
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 3 Google reviews
- Emergency service
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 24 Monck St, Kendal, ON L0A 1E0
#25 Quinte Plumbing
Based in Cobourg
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 49 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 11 Wendys Ln, Brighton, ON K0K 1H0
Plumbers ranked #26 to #50
#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 52 ranked plumbers here; the rest are on their profiles.
Also serving Cobourg
16 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 |
|---|---|---|
| Capital Mechanical Services | 5.0★ (1) | 39 km |
| Craig Electrical, Plumbing & Pump Services | 3.0★ (2) | 36 km |
| Finley Ed & Sons Plumbing Ltd | 40 km | |
| Glen Stewart Contracting | 4.7★ (6) | In Cobourg |
| Goodfellow & Dougherty Ltd | 37 km | |
| H & R Plumbing | 35 km | |
| Jet Plumbing | In Cobourg | |
| Mike Gabovic Plumbing-Heating | 3.0★ (1) | In Cobourg |
| Miller Bros | In Cobourg | |
| Pro Desk at RONA | In Cobourg | |
| Pro Desk at RONA | 9 km | |
| Rutherford Bros | 5.0★ (2) | In Cobourg |
| S & J Rutherford | 5.0★ (1) | In Cobourg |
| T&J Plumbing | 5.0★ (1) | In Cobourg |
| Y And P Repair & Maintenance | 5.0★ (1) | In Cobourg |
| YouNique Kitchens & Bath | 4.6★ (18) | In Cobourg |
How much do plumbers cost in Cobourg?
US national ranges converted to CAD, not adjusted for Cobourg. 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 |
How we ranked Cobourg plumbers
We scored 52 Cobourg 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 Cobourg 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 |
Plumbers in Cobourg: frequently asked questions
Who is the best plumber in Cobourg?
By CR Score, the highest-ranked plumber in Cobourg, ON is Guardian Plumbing and Drain with a CR Score of 67/100. It has 4.8★ from 627 Google reviews. It is open 24/7. Stadtke Plumbing & Heating Ltd. (#2) and Pollard's Plumbing (#3) follow. We ranked 52 plumbers on ten factors, last updated October 22, 2026.
How many plumbers are there in Cobourg?
ContractorsRanked ranks 52 plumbers serving Cobourg, ON. 33 of them are based in Cobourg; the rest serve it from nearby towns. Another 16 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in Cobourg are open 24/7?
20 ranked plumbers in Cobourg post 24/7 hours. The highest-ranked are Guardian Plumbing and Drain (#1), Pollard's Plumbing (#3) and Doyle Home Services (#4). Larry Jackson Plumbing & Htg (#24) also lists emergency service. Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Cobourg work on weekends?
30 of 52 ranked plumbers post Saturday hours and 25 post Sunday hours. The highest-ranked open Saturdays are Guardian Plumbing and Drain (#1), Stadtke Plumbing & Heating Ltd. (#2) and Pollard's Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does water heater replacement cost in Cobourg?
Water heater replacement typically costs CA$1,240 to CA$2,570, with CA$1,890 typical (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)). This is a national range, not adjusted for Cobourg. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Cobourg plumbers have?
The median Google rating among 52 rated plumbers in Cobourg is 4.9★, with a median of 33 reviews. Comfort Zone Heating and Air Conditioning has the most, 834 reviews, and ranks #9. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank plumbers?
Each plumber gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do plumbers outside Cobourg count in this ranking?
Yes, if they are within 40 km of the Cobourg city centre, our service radius for plumbers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Cobourg
- October 2026: CR Scores recalculated for 52 plumbers serving Cobourg.
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