62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 447 Google reviews, the most in Westminster.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pool Builders in Westminster, CA (2026)
731 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Westminster: PoolGenX, CR Score 62/100; 4.8★ from 447 Google reviews; open 24/7.
- 5
Best for emergencies (open 24/7): MIGUEL’S POOL SERVICE, posts 24/7 hours; ranked #5 of 731.
- 2
Most-reviewed: Saddleback Mountain pool and spa service, 253 Google reviews at 5.0★, the most of 731 ranked after PoolGenX; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
731 Westminster pool builders are ranked here by CR Score, from ten published factors. 91 are open 24/7, 440 open Saturdays and 234 open Sundays, based on posted hours. The median Google rating is 4.9★ across 731 rated businesses.
Top 10 pool builders in Westminster at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | PoolGenX | 62 | 4.8★ (447) | Riverside, 34 mi away | 24/7 | Overall |
| 2 | Saddleback Mountain pool and spa service | 62 | 5.0★ (253) | Rancho Santa Margarita, 25 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Proper Pool Service | 61 | 5.0★ (62) | Huntington Beach, 7 mi away | Sat · Sun · Evenings | — |
| 4 | Leslie's Pool Supplies | 61 | 4.5★ (120) | Anaheim, 6 mi away | Sat · Sun | — |
| 5 | MIGUEL’S POOL SERVICE | 60 | 4.5★ (48) | East Los Angeles, 8 mi away | 24/7 | Emergencies |
| 6 | Poolboyzoc | 60 | 5.0★ (72) | Anaheim, 15 mi away | Sat · Sun · Evenings | — |
| 7 | Glendale Pool Repair&Leaks | 60 | 4.9★ (103) | Glendale, 30 mi away | 24/7 | — |
| 8 | Pool Repair & Replaster CA | 60 | 4.8★ (56) | Torrance, 20 mi away | 24/7 | — |
| 9 | FC Pool | 60 | 4.7★ (146) | Los Angeles, 32 mi away | 24/7 | — |
| 10 | Royal Globe Pool Construction | 59 | 4.9★ (81) | Los Angeles, 31 mi away | 24/7 | — |
The 731 best pool builders in Westminster, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Rancho Santa Margarita, 25 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 253 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Huntington Beach, 7 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anaheim, 6 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.5★ from 120 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Los Angeles, 8 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.5★ from 48 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#6 Poolboyzoc
Based in Anaheim, 15 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Glendale, 30 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 on 8 of 10 factors; credentials and recency not yet collected.
Based in Torrance, 20 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#9 FC Pool
Based in Los Angeles, 32 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 146 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 31 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Torrance, 21 mi away
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Costa Mesa, 14 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Redondo Beach, 22 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Corona, 8 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Upland, 30 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 220 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fullerton, 12 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 198 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Torrance, 18 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 31 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marina del Rey, 30 mi away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 127 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Torrance, 18 mi away
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 76 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 AquaPlanet
Based in Santa Ana, 9 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 160 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Huntington Beach, 5 mi away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.5★ from 65 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 Moreno Valley, 25 mi away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.8★ from 100 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stanton, 2 mi away
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mission Viejo, 20 mi away
59/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
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 731 ranked pool builders here; the rest are on their profiles.
Also serving Westminster
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 |
|---|---|---|
| Anarumo Inspection Services | 5.0★ (205) | In Westminster |
| Blue Diamond Pool N Spa Service and Repair | 5.0★ (1) | In Westminster |
| Blueray Aquatics | 5.0★ (2) | 6 mi |
| Central OC Plumbing | 5.0★ (2) | In Westminster |
| Definite Pool Solutions | 5.0★ (2) | 3 mi |
| Felix Pool Services | 3.0★ (2) | 7 mi |
| Gallagher Plumbing | 5.0★ (2) | 10 mi |
| Green Pool doctor | 5.0★ (2) | 7 mi |
| Islander Extremes | In Westminster | |
| KG Aquatic Designs | 5.0★ (2) | 5 mi |
| Leak Specialists | 5.0★ (2) | 9 mi |
| McCoy Pool Construction | 4.5★ (2) | 7 mi |
| Paradise Pools | 5.0★ (2) | 6 mi |
| Patriot Pool and Spa | 5.0★ (2) | 8 mi |
| Pool and spa innovations | In Westminster | |
| Pool Concepts Unlimited | 1.0★ (2) | 7 mi |
| Reborn general Construction | In Westminster | |
| Roman Holiday Pools | 5.0★ (2) | 4 mi |
| Salt Tooth Pools | In Westminster | |
| Westminster Concrete Company | 5.0★ (4) | In Westminster |
How we ranked Westminster pool builders
We scored 731 Westminster 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 Westminster 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 Westminster: frequently asked questions
Who is the best pool builder in Westminster?
By CR Score, the highest-ranked pool builder in Westminster, CA is PoolGenX with a CR Score of 62/100. It has 4.8★ from 447 Google reviews. It is open 24/7. Saddleback Mountain pool and spa service (#2) and Proper Pool Service (#3) follow. We ranked 731 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Westminster?
ContractorsRanked ranks 731 pool builders serving Westminster, CA. 1 of them is based in Westminster; 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 Westminster are open 24/7?
91 ranked pool builders in Westminster post 24/7 hours. The highest-ranked are PoolGenX (#1), MIGUEL’S POOL SERVICE (#5) 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 Westminster work on weekends?
440 of 731 ranked pool builders post Saturday hours and 234 post Sunday hours. The highest-ranked open Saturdays are PoolGenX (#1), Saddleback Mountain pool and spa service (#2) and Proper Pool Service (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Westminster pool builders have?
The median Google rating among 731 rated pool builders in Westminster is 4.9★, with a median of 12 reviews. PoolGenX has the most, 447 reviews, and ranks #1. 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 Westminster count in this ranking?
Yes, if they are within 40 mi of the Westminster 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 Westminster
- November 2026: CR Scores recalculated for 731 pool builders serving Westminster.
- November 2026: 11 duplicate listings merged.
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