87 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Duncan: Gideon Plumbing, CR Score 67/100; 4.9★ from 637 Google reviews; open 24/7.
Best for emergencies (open 24/7): The Super Plumber - Duncan, posts 24/7 hours; ranked #2 of 87.
Most-reviewed: The Comfort Group, 1,166 Google reviews at 4.8★, the most of 87 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
87 Duncan plumbers are ranked here by CR Score, from ten published factors. 21 are open 24/7, 36 open Saturdays and 32 open Sundays, based on posted hours. The median Google rating is 4.9★ across 87 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Gideon Plumbing | 67 | 4.9★ (637) | Duncan | 24/7 | Overall |
| 2 | The Super Plumber - Duncan | 64 | 4.8★ (144) | Duncan | 24/7 | Emergencies |
| 3 | Baker Plumbing & Renovations | 64 | 4.7★ (185) | Duncan | 24/7 | — |
| 4 | Vortech Plumbing & Drainage Inc | 63 | 4.6★ (115) | Duncan | 24/7 | — |
| 5 | Gary's Gas Co | 62 | 4.8★ (53) | Duncan | 24/7 | — |
| 6 | Veridis Plumbing & Heating Ltd. | 62 | 4.5★ (93) | Duncan | 24/7 | — |
| 7 | Park's Rooter & Drains | 62 | 4.9★ (42) | North Cowichan, 2 km away | 24/7 | — |
| 8 | The Comfort Group | 61 | 4.8★ (1,166) | Duncan | 24/7 | Most reviews |
| 9 | Never A Gamble Plumbing/Gas | 61 | 5.0★ (18) | Duncan | 24/7 | — |
| 10 | JS Plumbing & Heating Ltd | 59 | 5.0★ (89) | Duncan | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 637 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #2 because of its Google rating and trade focus: 4.8★ from 144 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #3 because of its Google rating and trade focus: 4.7★ from 185 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #4 because of its Google rating and trade focus: 4.6★ from 115 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #5 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #6 because of its Google rating and trade focus: 4.5★ from 93 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Cowichan, 2 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #8 because of its Google rating and review volume: 4.8★ from 1,166 Google reviews, the most in Duncan.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #9 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #10 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Cowichan, 10 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duncan
Ranked #12 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Cowichan, 8 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #14 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colwood, 2 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Cowichan, 7 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duncan
Ranked #17 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Saanich, 24 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in North Saanich, 29 km away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 26 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colwood, 34 km away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 38 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colwood, 19 km away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colwood, 37 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #23 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #24 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duncan
Ranked #25 because of its Google rating and trade focus: 4.8★ from 8 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#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 87 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 |
|---|---|---|
| Accurate Air | 3.9★ (43) | In Duncan |
| Allready Plumbing & Drainage | 4.0★ (4) | 40 km |
| Andersen + Co. Contracting Inc. | 5.0★ (23) | In Duncan |
| Comfort Guides - Heating | In Duncan | |
| Diamond Joe's Plumbing | 4.0★ (3) | 13 km |
| Fairway Plumbing & Heating Co Ltd | 5.0★ (2) | 40 km |
| Future site of Cowichan District Hospital | 5.0★ (9) | In Duncan |
| Hart Mechanical Services | 5.0★ (4) | In Duncan |
| Hey Handy | 5.0★ (13) | In Duncan |
| Hutcheson Plumbing & Gas | 5.0★ (2) | In Duncan |
| Lewis Plumbing | 4.5★ (15) | 39 km |
| Miller Plumbing Services | 3.7★ (6) | 18 km |
| Rather Be Plumbing | In Duncan | |
| Royal Bay Plumbing | 4.4★ (7) | 27 km |
| Salt Spring Handyman | 5.0★ (2) | 20 km |
| Scott’s | 5.0★ (1) | 17 km |
| Stream Line Plumbing | 5.0★ (1) | 16 km |
| Tophers Plumbing | In Duncan | |
| Torry & Sons Plbg & Htg Ltd | 5.0★ (1) | In Duncan |
| Veenstra Consulting | 5.0★ (2) | 37 km |
US national ranges converted to CAD, not adjusted for Duncan. 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 87 Duncan 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 Duncan 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 |