Ranked #1 in Rancho Santa Margarita
Based in Rancho Santa Margarita
65/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 253 Google reviews, listed on Google as “Swimming pool contractor”.
Best Pool Builders in Rancho Santa Margarita, CA (2026)
664 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rancho Santa Margarita: Saddleback Mountain pool and spa service, CR Score 65/100; 5.0★ from 253 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): PoolGenX, posts 24/7 hours; ranked #2 of 664.
- 3
Most-reviewed: Inland Empire Hot Spring Spas, 773 Google reviews at 4.9★, the most of 664 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
664 Rancho Santa Margarita pool builders are ranked here by CR Score, from ten published factors. 57 are open 24/7, 384 open Saturdays and 185 open Sundays, based on posted hours. The median Google rating is 4.8★ across 664 rated businesses.
Top 10 pool builders in Rancho Santa Margarita at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Saddleback Mountain pool and spa service | 65 | 5.0★ (253) | Rancho Santa Margarita | Sat · Sun · Evenings | Overall |
| 2 | PoolGenX | 63 | 4.8★ (447) | Riverside, 21 mi away | 24/7 | Emergencies |
| 3 | Inland Empire Hot Spring Spas | 61 | 4.9★ (773) | Moreno Valley, 31 mi away | Sat · Sun | Most reviews |
| 4 | Pacific Pool Services | 61 | 4.9★ (56) | Rancho Santa Margarita | Sat · Sun · Evenings | — |
| 5 | Poolboyzoc | 60 | 5.0★ (72) | Anaheim, 10 mi away | Sat · Sun · Evenings | — |
| 6 | Superior pool repairs | 60 | 5.0★ (56) | Murrieta, 18 mi away | 24/7 | — |
| 7 | Flow State Pool Service | 60 | 5.0★ (47) | Mission Viejo, 8 mi away | Sat · Sun · Evenings | — |
| 8 | SD Pool Service and Repair | 60 | 5.0★ (49) | Mission Viejo, 9 mi away | Sat · Sun · Evenings | — |
| 9 | Valley Hot Spring Spas, Swim Spas & BBQ Islands, Murrieta | 59 | 4.7★ (224) | Murrieta, 24 mi away | Sat · Sun | — |
| 10 | Puddle Pool Services | 59 | 4.8★ (68) | Temecula, 14 mi away | Sat · Sun · Evenings | — |
The 664 best pool builders in Rancho Santa Margarita, 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.
#2 PoolGenX
Based in Riverside, 21 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 447 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Moreno Valley, 31 mi away
61/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 773 Google reviews, the most in Rancho Santa Margarita.
Based in Rancho Santa Margarita
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “Swimming pool repair service”.
#5 Poolboyzoc
Based in Anaheim, 10 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Murrieta, 18 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Mission Viejo, 8 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Mission Viejo, 9 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Murrieta, 24 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 224 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Temecula, 14 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 68 Google reviews, listed on Google as “Swimming pool repair service”.
Based in San Clemente, 12 mi away
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Laguna Niguel, 10 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 Moreno Valley, 20 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 100 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Mission Viejo, 10 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 86 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Costa Mesa, 15 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Huntington Beach, 21 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Irvine, 7 mi away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Swimming pool contractor”.
Based in East Los Angeles, 19 mi away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.5★ from 48 Google reviews, listed on Google as “Swimming pool repair service”.
#19 VINYL POOL PROS
Based in Rancho Cucamonga, 33 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Temecula, 23 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 84 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Upland, 32 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 220 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Temecula, 27 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Lake Elsinore, 14 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Riverside, 20 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 72 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Ladera Ranch, 10 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 76 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 664 ranked pool builders here; the rest are on their profiles.
Also serving Rancho Santa Margarita
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 |
|---|---|---|
| Anchor Rancho Santa Margarita Plumber | 5.0★ (1) | In Rancho Santa Margarita |
| Aquanetic Pools and Spas | 3.0★ (2) | 6 mi |
| California 777 Pool Fiberglass | 5.0★ (2) | 8 mi |
| Clean Choice Pool & Spa | 1.0★ (1) | In Rancho Santa Margarita |
| Crystal Blue Pool | 5.0★ (2) | 4 mi |
| Dr. Pool Service & Repair | 3.0★ (2) | 10 mi |
| Endless Summer Pools | 5.0★ (2) | 13 mi |
| Eternal Water Pools | 5.0★ (2) | 10 mi |
| Executive Pool & Spa | 5.0★ (2) | 11 mi |
| Granelli’s Pool & Spa | 5.0★ (2) | 9 mi |
| Griff's Pools and Spas | 5.0★ (2) | 16 mi |
| Master Planned Plumbing | 5.0★ (2) | In Rancho Santa Margarita |
| Montierth Pool and Spa Services | 5.0★ (2) | 9 mi |
| Orange County Pool Inspection | 5.0★ (2) | 13 mi |
| Polar Pool & Spa Services | 3.0★ (2) | In Rancho Santa Margarita |
| RICK POOLS INC | 5.0★ (2) | 15 mi |
| Sapphire Pool & Spa Construction | 3.5★ (2) | 10 mi |
| South County Pool Service Techs | 5.0★ (2) | 8 mi |
| Swimming Pool Plumber | 5.0★ (2) | 16 mi |
| Westmod - Orange County | 5.0★ (2) | 10 mi |
How we ranked Rancho Santa Margarita pool builders
We scored 664 Rancho Santa Margarita 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 Rancho Santa Margarita 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 Rancho Santa Margarita: frequently asked questions
Who is the best pool builder in Rancho Santa Margarita?
By CR Score, the highest-ranked pool builder in Rancho Santa Margarita, CA is Saddleback Mountain pool and spa service with a CR Score of 65/100. It has 5.0★ from 253 Google reviews. It is open 7 days a week. PoolGenX (#2) and Inland Empire Hot Spring Spas (#3) follow. We ranked 664 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Rancho Santa Margarita?
ContractorsRanked ranks 664 pool builders serving Rancho Santa Margarita, CA. 2 of them are based in Rancho Santa Margarita; 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 Rancho Santa Margarita are open 24/7?
57 ranked pool builders in Rancho Santa Margarita post 24/7 hours. The highest-ranked are PoolGenX (#2), Superior pool repairs (#6) and O.C. Swimming Pool Service (#12). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Rancho Santa Margarita work on weekends?
384 of 664 ranked pool builders post Saturday hours and 185 post Sunday hours. The highest-ranked open Saturdays are Saddleback Mountain pool and spa service (#1), PoolGenX (#2) and Inland Empire Hot Spring Spas (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Rancho Santa Margarita pool builders have?
The median Google rating among 664 rated pool builders in Rancho Santa Margarita is 4.8★, with a median of 13 reviews. Inland Empire Hot Spring Spas has the most, 773 reviews, and ranks #3. 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 Rancho Santa Margarita count in this ranking?
Yes, if they are within 40 mi of the Rancho Santa Margarita 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 Rancho Santa Margarita
- November 2026: CR Scores recalculated for 664 pool builders serving Rancho Santa Margarita.
- November 2026: 6 duplicate listings merged.
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