63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 447 Google reviews, listed on Google as “Swimming pool repair service”.
Best Pool Builders in San Dimas, CA (2026)
789 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in San Dimas: PoolGenX, CR Score 63/100; 4.8★ from 447 Google reviews; open 24/7.
- 6
Best for emergencies (open 24/7): ORCA Pool Cleaning Service and Maintenance, posts 24/7 hours; ranked #6 of 789.
- 5
Most-reviewed: Inland Empire Hot Spring Spas, 773 Google reviews at 4.9★, the most of 789 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
789 San Dimas pool builders are ranked here by CR Score, from ten published factors. 100 are open 24/7, 472 open Saturdays and 258 open Sundays, based on posted hours. The median Google rating is 4.9★ across 789 rated businesses.
Top 10 pool builders in San Dimas at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | PoolGenX | 63 | 4.8★ (447) | Riverside, 25 mi away | 24/7 | Overall |
| 2 | Gary's Swimming Pool Supplies | 62 | 4.7★ (220) | Upland, 7 mi away | Sat · Sun | — |
| 3 | VINYL POOL PROS | 61 | 4.9★ (156) | Rancho Cucamonga, 13 mi away | Sat · Sun | — |
| 4 | Pool Cleaning Service and Maintenance | 60 | 4.9★ (63) | Claremont, 5 mi away | Sat · Sun · Evenings | — |
| 5 | Inland Empire Hot Spring Spas | 60 | 4.9★ (773) | Moreno Valley, 37 mi away | Sat · Sun | Most reviews |
| 6 | ORCA Pool Cleaning Service and Maintenance | 60 | 5.0★ (31) | Rancho Cucamonga, 8 mi away | 24/7 | Emergencies |
| 7 | Glendale Pool Repair&Leaks | 60 | 4.9★ (103) | Glendale, 26 mi away | 24/7 | — |
| 8 | Pool Builder Arcadia | 60 | 5.0★ (68) | Arcadia, 13 mi away | Sat · Sun · Evenings | — |
| 9 | Cali Coast Pools | 60 | 4.7★ (24) | Glendora, 4 mi away | 24/7 | — |
| 10 | Saddleback Mountain pool and spa service | 60 | 5.0★ (253) | Rancho Santa Margarita, 34 mi away | Sat · Sun · Evenings | — |
The 789 best pool builders in San Dimas, 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 Upland, 7 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 220 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Rancho Cucamonga, 13 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Claremont, 5 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 63 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Moreno Valley, 37 mi away
60/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 773 Google reviews, the most in San Dimas.
Based in Rancho Cucamonga, 8 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Glendale, 26 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 103 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Arcadia, 13 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 68 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Glendora, 4 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 24 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Rancho Santa Margarita, 34 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 253 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Moreno Valley, 16 mi away
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 100 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Chino Hills, 8 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Covina, 4 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.1★ from 204 Google reviews, listed on Google as “Swimming pool contractor”.
#14 AQUA POOL PRO
Based in Rancho Cucamonga, 10 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Upland, 8 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ from 22 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Rancho Cucamonga, 12 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Rancho Cucamonga, 12 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 176 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Fontana, 22 mi away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 125 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Los Angeles, 33 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Swimming pool contractor”.
Based in San Dimas
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Rancho Cucamonga, 11 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.4★ from 89 Google reviews, listed on Google as “Swimming pool repair service”.
Based in La Puente, 9 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 74 Google reviews, listed on Google as “Swimming pool repair service”.
#23 FC Pool
Based in Los Angeles, 36 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.7★ from 146 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Pomona, 6 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Swimming pool contractor”.
Based in La Verne, 2 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Swimming pool contractor”.
Pool builders 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 789 ranked pool builders here; the rest are on their profiles.
Also serving San Dimas
20 more pool builders within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| 3m Pools | 5.0★ (2) | 3 mi |
| All Seasons Custom Pools | 5.0★ (2) | 12 mi |
| Aquaman Pool Service Chino Hills | 5.0★ (2) | 5 mi |
| Baccaro Pool Service | 2.5★ (2) | 12 mi |
| BP Pool Service | 5.0★ (2) | 13 mi |
| CaliPoolTechs | 5.0★ (2) | 4 mi |
| Condor Inc | 5.0★ (2) | 12 mi |
| Corey Pool Care | 5.0★ (2) | 9 mi |
| Elite Pool Designs, Inc | 5.0★ (2) | 13 mi |
| Gardens Inc | 5.0★ (2) | 11 mi |
| Golden Leaf Construction, Inc. | 5.0★ (2) | 13 mi |
| h2o pro pool | 5.0★ (2) | 7 mi |
| Huntington Pools Inc. | 5.0★ (2) | In San Dimas |
| Modern Paving | 5.0★ (2) | 7 mi |
| OSHI Construction Inc. | 5.0★ (2) | 14 mi |
| Phil Gomez Pool Services | 1.0★ (2) | 11 mi |
| The Pool Geeks | 4.5★ (2) | 5 mi |
| Tropical Pools | 2.5★ (2) | 9 mi |
| Vertical Pools | 5.0★ (2) | 10 mi |
| Water Visuals | 5.0★ (2) | 7 mi |
How we ranked San Dimas pool builders
We scored 789 San Dimas 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 San Dimas 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 San Dimas: frequently asked questions
Who is the best pool builder in San Dimas?
By CR Score, the highest-ranked pool builder in San Dimas, CA is PoolGenX with a CR Score of 63/100. It has 4.8★ from 447 Google reviews. It is open 24/7. Gary's Swimming Pool Supplies (#2) and VINYL POOL PROS (#3) follow. We ranked 789 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in San Dimas?
ContractorsRanked ranks 789 pool builders serving San Dimas, CA. 1 of them is based in San Dimas; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in San Dimas are open 24/7?
100 ranked pool builders in San Dimas post 24/7 hours. The highest-ranked are PoolGenX (#1), ORCA Pool Cleaning Service and Maintenance (#6) and Glendale Pool Repair&Leaks (#7). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in San Dimas work on weekends?
472 of 789 ranked pool builders post Saturday hours and 258 post Sunday hours. The highest-ranked open Saturdays are PoolGenX (#1), Gary's Swimming Pool Supplies (#2) and VINYL POOL PROS (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do San Dimas pool builders have?
The median Google rating among 789 rated pool builders in San Dimas is 4.9★, with a median of 12 reviews. Inland Empire Hot Spring Spas has the most, 773 reviews, and ranks #5. 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 San Dimas count in this ranking?
Yes, if they are within 40 mi of the San Dimas city center, 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 San Dimas
- November 2026: CR Scores recalculated for 789 pool builders serving San Dimas.
- November 2026: 9 duplicate listings merged.
More pool builders and San Dimas pages
Pool builders near San Dimas
- Pool builders in La Verne, CA757 ranked
- Pool builders in Glendora, CA825 ranked
- Pool builders in Pomona, CA749 ranked
- Pool builders in Citrus, CA832 ranked
- Pool builders in Covina, CA825 ranked
- Pool builders in Claremont, CA725 ranked
- Pool builders in Diamond Bar, CA771 ranked
- Pool builders in Azusa, CA838 ranked
- Pool builders in Walnut, CA807 ranked
- Pool builders in Montclair, CA690 ranked
Other trades in San Dimas
- Roofers in San Dimas2040 ranked
- Plumbers in San Dimas1124 ranked
- Electricians in San Dimas746 ranked
- HVAC contractors in San Dimas1166 ranked
- General contractors in San Dimas1109 ranked
- Painters in San Dimas155 ranked
- Landscapers in San Dimas181 ranked
- Handymen in San Dimas85 ranked
- Kitchen remodelers in San Dimas538 ranked
- Bathroom remodelers in San Dimas542 ranked
- Flooring contractors in San Dimas473 ranked
- Tile installers in San Dimas66 ranked
- Drywall contractors in San Dimas25 ranked
- Concrete contractors in San Dimas338 ranked
- Fence contractors in San Dimas242 ranked
- Deck builders in San Dimas111 ranked
- Siding contractors in San Dimas124 ranked
- Window installers in San Dimas762 ranked
- Gutter installers in San Dimas174 ranked
- Insulation contractors in San Dimas166 ranked
- Solar installers in San Dimas708 ranked
- Garage door repair companies in San Dimas217 ranked
- Foundation repair companies in San Dimas233 ranked
- Tree services in San Dimas304 ranked
- Masonry contractors in San Dimas194 ranked
- Water damage restoration companies in San Dimas1345 ranked
- Home builders in San Dimas872 ranked
- Demolition contractors in San Dimas126 ranked
- Window cleaners in San Dimas80 ranked
- Pressure washing companies in San Dimas91 ranked
- Pest control companies in San Dimas432 ranked
- Paving contractors in San Dimas210 ranked
- Auto glass repair shops in San Dimas378 ranked
- Septic service companies in San Dimas101 ranked
- Excavating contractors in San Dimas57 ranked
- All contractors in San Dimas