60/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pool Builders in St. Thomas, ON (2026)
50 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in St. Thomas: PoolZenia London - Peace of Mind Pool Care, CR Score 60/100; 4.9★ from 68 Google reviews; open 7 days a week.
- 4
Best for emergencies (open 24/7): Cutting Edge Pool & Patio Inc., posts 24/7 hours; ranked #4 of 50.
- 6
Most-reviewed: Pioneer Family Pools London: Pools, Patio Furniture & Hot Tubs, 283 Google reviews at 3.8★, the most of 50 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
50 St. Thomas pool builders are ranked here by CR Score, from ten published factors. 4 are open 24/7, 28 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.7★ across 50 rated businesses.
Top 10 pool builders in St. Thomas at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | PoolZenia London - Peace of Mind Pool Care | 60 | 4.9★ (68) | Barrie, 20 km away | Sat · Sun · Evenings | Overall |
| 2 | Custom Leisurescapes | 60 | 4.7★ (156) | London, 20 km away | Sat | — |
| 3 | Coastal Pools Inc. | 59 | 4.8★ (257) | London, 30 km away | — | — |
| 4 | Cutting Edge Pool & Patio Inc. | 58 | 4.4★ (31) | London, 20 km away | 24/7 | Emergencies |
| 5 | PipeTech Solutions Inc. | 58 | 4.9★ (45) | London, 20 km away | — | — |
| 6 | Pioneer Family Pools London: Pools, Patio Furniture & Hot Tubs | 57 | 3.8★ (283) | London, 29 km away | Sat · Sun | Most reviews |
| 7 | Puddle Pool Services | 57 | 4.7★ (26) | London, 20 km away | Sat · Sun · Evenings | — |
| 8 | Your Pool Guy Inc. | 57 | 4.9★ (57) | London, 31 km away | Sat | — |
| 9 | Skyview Pool & Spa Limited | 57 | 4.1★ (202) | London, 29 km away | Sat | — |
| 10 | Spencer Pools | 56 | 4.8★ (65) | London, 23 km away | — | — |
The 50 best pool builders in St. Thomas, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in London, 20 km away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 156 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 30 km away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 257 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.4★ from 31 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in London, 29 km away
57/100CR ScoreRanked #6 because of its Google rating and review volume: 3.8★ from 283 Google reviews, the most in St. Thomas.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 31 km away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 57 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 29 km away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.1★ from 202 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#10 Spencer Pools
Based in London, 23 km away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 65 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 25 km away
56/100CR ScoreRanked #11 because of its Google rating and review volume: 4.6★ from 249 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aylmer, 17 km away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.4★ from 28 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Norfolk County, 39 km away
55/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Tackaberry Pools
Based in Ingersoll, 38 km away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 19 km away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ from 47 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 21 km away
54/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
54/100CR ScoreRanked #17 because of its Google rating and review volume: 4.7★ from 219 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 25 km away
54/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 37 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 37 km away
54/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.3★ from 56 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#20 Poolex
Based in Aylmer, 17 km away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodstock, 53 km away
54/100CR ScoreRanked #21 because of its Google rating and trade focus: 3.8★ from 132 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 18 km away
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#23 Crown Pools
Based in London, 20 km away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in London, 25 km away
54/100CR ScoreRanked #24 because of its Google rating and review volume: 5.0★ from 62 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 31 km away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 50 pool builders
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.
Also serving St. Thomas
10 more pool builders within 64 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 |
|---|---|---|
| Blue Bayou Pools | 22 km | |
| Complete Pool and Pool Liner | 25 km | |
| Complete Pools - Pool Liner | 3.0★ (2) | 24 km |
| Custom Leisurescapes | 5.0★ (1) | 57 km |
| Henstone Pool & Spa | 20 km | |
| JDM Pools | 25 km | |
| Leisure Fun Pools Inc | 3.0★ (1) | In St. Thomas |
| Polaris Pools | 5.0★ (2) | 64 km |
| Splash Works | 4.0★ (2) | 24 km |
| T and T Electric Executive Office | 24 km |
How we ranked St. Thomas pool builders
We scored 50 St. Thomas pool builders 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 November 3, 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 St. Thomas 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 |
Pool builders in St. Thomas: frequently asked questions
Who is the best pool builder in St. Thomas?
By CR Score, the highest-ranked pool builder in St. Thomas, ON is PoolZenia London - Peace of Mind Pool Care with a CR Score of 60/100. It has 4.9★ from 68 Google reviews. It is open 7 days a week. Custom Leisurescapes (#2) and Coastal Pools Inc. (#3) follow. We ranked 50 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in St. Thomas?
ContractorsRanked ranks 50 pool builders serving St. Thomas, ON. Another 10 within 64 km are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in St. Thomas are open 24/7?
4 ranked pool builders in St. Thomas post 24/7 hours. The highest-ranked is Cutting Edge Pool & Patio Inc. (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in St. Thomas work on weekends?
28 of 50 ranked pool builders post Saturday hours and 10 post Sunday hours. The highest-ranked open Saturdays are PoolZenia London - Peace of Mind Pool Care (#1), Custom Leisurescapes (#2) and Cutting Edge Pool & Patio Inc. (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do St. Thomas pool builders have?
The median Google rating among 50 rated pool builders in St. Thomas is 4.7★, with a median of 30 reviews. Pioneer Family Pools London: Pools, Patio Furniture & Hot Tubs has the most, 283 reviews, and ranks #6. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank pool builders?
Each pool builder 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 pool builders outside St. Thomas count in this ranking?
Yes, if they are within 64 km of the St. Thomas city centre, our service radius for pool builders. 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.
Can pool builders pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for St. Thomas
- November 2026: CR Scores recalculated for 50 pool builders serving St. Thomas.
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