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 Walnut, CA (2026)
807 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Walnut: PoolGenX, CR Score 63/100; 4.8★ from 447 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Glendale Pool Repair&Leaks, posts 24/7 hours; ranked #4 of 807.
- 6
Most-reviewed: Inland Empire Hot Spring Spas, 773 Google reviews at 4.9★, the most of 807 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
807 Walnut pool builders are ranked here by CR Score, from ten published factors. 101 are open 24/7, 480 open Saturdays and 263 open Sundays, based on posted hours. The median Google rating is 4.9★ across 807 rated businesses.
Top 10 pool builders in Walnut 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 | 61 | 4.7★ (220) | Upland, 11 mi away | Sat · Sun | — |
| 3 | VINYL POOL PROS | 60 | 4.9★ (156) | Rancho Cucamonga, 18 mi away | Sat · Sun | — |
| 4 | Glendale Pool Repair&Leaks | 60 | 4.9★ (103) | Glendale, 24 mi away | 24/7 | Emergencies |
| 5 | Saddleback Mountain pool and spa service | 60 | 5.0★ (253) | Rancho Santa Margarita, 30 mi away | Sat · Sun · Evenings | — |
| 6 | Inland Empire Hot Spring Spas | 60 | 4.9★ (773) | Moreno Valley, 39 mi away | Sat · Sun | Most reviews |
| 7 | ORCA Pool Cleaning Service and Maintenance | 60 | 5.0★ (31) | Rancho Cucamonga, 10 mi away | 24/7 | — |
| 8 | Pool Builder Arcadia | 60 | 5.0★ (68) | Arcadia, 13 mi away | Sat · Sun · Evenings | — |
| 9 | Pool Cleaning Service and Maintenance | 60 | 4.9★ (63) | Claremont, 10 mi away | Sat · Sun · Evenings | — |
| 10 | ORCA Pools - Pool Service Chino Hills | 60 | 4.9★ (46) | Chino Hills, 6 mi away | Sat · Sun | — |
The 807 best pool builders in Walnut, 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, 11 mi away
61/100CR 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, 18 mi away
60/100CR 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 Glendale, 24 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 103 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Rancho Santa Margarita, 30 mi away
60/100CR ScoreRanked #5 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, 39 mi away
60/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 773 Google reviews, the most in Walnut.
Based in Rancho Cucamonga, 10 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 31 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 Claremont, 10 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 63 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Chino Hills, 6 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Moreno Valley, 15 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 100 Google reviews, listed on Google as “Swimming pool contractor”.
#12 Cali Coast Pools
Based in Glendora, 8 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 24 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Covina, 5 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”.
Based in La Puente, 5 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.4★ from 74 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Fullerton, 8 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 198 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Los Angeles, 30 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Swimming pool contractor”.
#17 FC Pool
Based in Los Angeles, 33 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 146 Google reviews, listed on Google as “Swimming pool contractor”.
Based in East Los Angeles, 16 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.5★ from 48 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Anaheim, 14 mi away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.5★ from 120 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Rancho Cucamonga, 13 mi away
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 176 Google reviews, listed on Google as “Swimming pool repair service”.
#21 AQUA POOL PRO
Based in Rancho Cucamonga, 14 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Swimming pool contractor”.
Based in San Bernardino, 4 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 103 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Los Angeles, 32 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Rancho Cucamonga, 16 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Sherman Oaks, 35 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 73 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 807 ranked pool builders here; the rest are on their profiles.
Also serving Walnut
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) | 7 mi |
| All Seasons Custom Pools | 5.0★ (2) | 5 mi |
| Aquaman Pool Service Chino Hills | 5.0★ (2) | 10 mi |
| Baccaro Pool Service | 2.5★ (2) | 6 mi |
| BP Pool Service | 5.0★ (2) | 9 mi |
| CaliPoolTechs | 5.0★ (2) | 5 mi |
| Condor Inc | 5.0★ (2) | 9 mi |
| Gardens Inc | 5.0★ (2) | 10 mi |
| h2o pro pool | 5.0★ (2) | 6 mi |
| Healing Waters | 5.0★ (2) | 10 mi |
| Huntington Pools Inc. | 5.0★ (2) | 7 mi |
| Mirage Pools & Spas/David Lee | 3.0★ (2) | 9 mi |
| Modern Paving | 5.0★ (2) | 10 mi |
| MSN POOL PLASTERING CONSTRUCTION | 5.0★ (2) | 9 mi |
| Nexus Pool Construction | 5.0★ (2) | 10 mi |
| Phil Gomez Pool Services | 1.0★ (2) | 7 mi |
| Pro Pool Care | In Walnut | |
| Ruiz Pool & Spa | 1.0★ (2) | 8 mi |
| Scott & Co Pool & Spa Services | 5.0★ (2) | 10 mi |
| Tropical Pools | 2.5★ (2) | 3 mi |
How we ranked Walnut pool builders
We scored 807 Walnut 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 Walnut 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 Walnut: frequently asked questions
Who is the best pool builder in Walnut?
By CR Score, the highest-ranked pool builder in Walnut, 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 807 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Walnut?
ContractorsRanked ranks 807 pool builders serving Walnut, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in Walnut are open 24/7?
101 ranked pool builders in Walnut post 24/7 hours. The highest-ranked are PoolGenX (#1), Glendale Pool Repair&Leaks (#4) and ORCA Pool Cleaning Service and Maintenance (#7). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Walnut work on weekends?
480 of 807 ranked pool builders post Saturday hours and 263 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 Walnut pool builders have?
The median Google rating among 807 rated pool builders in Walnut is 4.9★, with a median of 12 reviews. Inland Empire Hot Spring Spas has the most, 773 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 Walnut count in this ranking?
Yes, if they are within 40 mi of the Walnut 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 Walnut
- November 2026: CR Scores recalculated for 807 pool builders serving Walnut.
- November 2026: 10 duplicate listings merged.
More pool builders and Walnut pages
Pool builders near Walnut
- Pool builders in South San Jose Hills, CA825 ranked
- Pool builders in Diamond Bar, CA771 ranked
- Pool builders in Rowland Heights, CA813 ranked
- Pool builders in Valinda, CA843 ranked
- Pool builders in La Puente, CA834 ranked
- Pool builders in Covina, CA825 ranked
- Pool builders in West Covina, CA847 ranked
- Pool builders in Hacienda Heights, CA833 ranked
- Pool builders in West Puente Valley, CA849 ranked
- Pool builders in Chino Hills, CA754 ranked
Other trades in Walnut
- Roofers in Walnut2062 ranked
- Plumbers in Walnut1522 ranked
- Electricians in Walnut1048 ranked
- HVAC contractors in Walnut1524 ranked
- General contractors in Walnut1543 ranked
- Painters in Walnut236 ranked
- Landscapers in Walnut282 ranked
- Handymen in Walnut114 ranked
- Kitchen remodelers in Walnut781 ranked
- Bathroom remodelers in Walnut771 ranked
- Flooring contractors in Walnut691 ranked
- Tile installers in Walnut113 ranked
- Drywall contractors in Walnut45 ranked
- Concrete contractors in Walnut447 ranked
- Fence contractors in Walnut321 ranked
- Deck builders in Walnut174 ranked
- Siding contractors in Walnut127 ranked
- Window installers in Walnut771 ranked
- Gutter installers in Walnut246 ranked
- Insulation contractors in Walnut238 ranked
- Solar installers in Walnut710 ranked
- Garage door repair companies in Walnut319 ranked
- Foundation repair companies in Walnut242 ranked
- Tree services in Walnut354 ranked
- Masonry contractors in Walnut250 ranked
- Water damage restoration companies in Walnut1361 ranked
- Home builders in Walnut893 ranked
- Demolition contractors in Walnut174 ranked
- Window cleaners in Walnut118 ranked
- Pressure washing companies in Walnut139 ranked
- Pest control companies in Walnut587 ranked
- Paving contractors in Walnut274 ranked
- Auto glass repair shops in Walnut529 ranked
- Septic service companies in Walnut123 ranked
- Excavating contractors in Walnut76 ranked
- All contractors in Walnut