60/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 366 Google reviews, the most in South San Francisco.
Best Pool Builders in South San Francisco, CA (2026)
189 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South San Francisco: Pools Etc., CR Score 60/100; 4.8★ from 366 Google reviews.
- 2
Best for emergencies (open 24/7): G-whizz Pool Cleaning, posts 24/7 hours; ranked #2 of 189.
- 5
Most-reviewed: Freedom Pool Services (A Pools Etc. Company), 297 Google reviews at 4.9★, the most of 189 ranked after Pools Etc.; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
189 South San Francisco pool builders are ranked here by CR Score, from ten published factors. 10 are open 24/7, 88 open Saturdays and 45 open Sundays, based on posted hours. The median Google rating is 4.7★ across 189 rated businesses.
Top 10 pool builders in South San Francisco at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Pools Etc. | 60 | 4.8★ (366) | Menlo Park, 17 mi away | — | Overall |
| 2 | G-whizz Pool Cleaning | 59 | 5.0★ (46) | Vallejo, 25 mi away | 24/7 | Emergencies |
| 3 | Poolsafe, LLC | 59 | 4.8★ (128) | San Francisco, 9 mi away | — | — |
| 4 | Paradise Valley Spas San Mateo | 58 | 4.2★ (68) | San Mateo, 9 mi away | Sat · Sun · Evenings | — |
| 5 | Freedom Pool Services (A Pools Etc. Company) | 57 | 4.9★ (297) | Santa Clara, 33 mi away | — | Most reviews |
| 6 | Lucky's Pool Center | 57 | 4.8★ (64) | Hayward, 17 mi away | Sat | — |
| 7 | Leslie's Pool Supplies | 57 | 4.5★ (81) | Pleasant Hill, 28 mi away | Sat · Sun | — |
| 8 | Preferred Pool & Spa Repair | 57 | 4.8★ (66) | Livermore, 34 mi away | Sat · Sun | — |
| 9 | At Your Door Pool Service, Inc. | 57 | 4.9★ (292) | Antioch, 37 mi away | — | — |
| 10 | Baby Proof Pool Safety Nets and Fencing | 56 | 5.0★ (17) | Berkeley, 17 mi away | Sat · Sun | — |
The 189 best pool builders in South San Francisco, 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 Vallejo, 25 mi away
59/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Swimming pool repair service”.
Based in San Francisco, 9 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 128 Google reviews, listed on Google as “Swimming pool repair service”.
Based in San Mateo, 9 mi away
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.2★ from 68 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Santa Clara, 33 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 297 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Hayward, 17 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Pleasant Hill, 28 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.5★ from 81 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Livermore, 34 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 66 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Antioch, 37 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 292 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Berkeley, 17 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Swimming pool contractor”.
#11 Spas & Moore
Based in Lafayette, 24 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 36 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Danville, 25 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 104 Google reviews, listed on Google as “Swimming pool contractor”.
#13 Claremont Pools
Based in Concord, 35 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Swimming pool repair service”.
#14 Skim N Dip
Based in Concord, 31 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 142 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Novato, 31 mi away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Swimming pool contractor”.
#16 The Pool Doctor
Based in El Sobrante, 23 mi away
55/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 110 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Daly City, 4 mi away
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Pleasanton, 29 mi away
55/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.4★ from 48 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Walnut Creek, 26 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Swimming pool contractor”.
#20 Pool Yeti's
Based in Richmond, 29 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Swimming pool repair service”.
Based in San Ramon, 25 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Albany, 12 mi away
55/100CR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 73 Google reviews.
Based in Oakland, 16 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Danville, 25 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.4★ from 23 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Concord, 31 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Swimming pool repair service”.
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 189 ranked pool builders here; the rest are on their profiles.
Also serving South San Francisco
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 |
|---|---|---|
| Affordable Pool Care | 5.0★ (2) | 23 mi |
| Almaden Pool Services | 3.0★ (2) | 27 mi |
| American Built Pools | 3.0★ (2) | 29 mi |
| American Built Pools Inc | 3.0★ (2) | 13 mi |
| Berkeley Pool Remodeling | 5.0★ (2) | 17 mi |
| Clearline Pool Services | 3.5★ (2) | 12 mi |
| Diablo Pool Pros | 4.5★ (2) | 28 mi |
| Diverse Scape Pools & Spas, Inc. | 5.0★ (2) | 27 mi |
| Four Seasons Pool Services | 3.0★ (2) | 7 mi |
| Fremont Pool CO | 5.0★ (2) | 28 mi |
| Mountain View Pool Constructions | 5.0★ (2) | 23 mi |
| Pacific Pools Inc | 5.0★ (2) | 25 mi |
| Precision Pacifica Fence | 5.0★ (1) | In South San Francisco |
| Pumps & Works | 5.0★ (2) | 16 mi |
| Rivera Family Pools & Remodeling | 5.0★ (2) | In South San Francisco |
| San Francisco Concrete Company | 5.0★ (4) | In South San Francisco |
| SBF San Bruno Fence Builders | 5.0★ (1) | In South San Francisco |
| Shamrock Pool Fiberglass Inc | 3.0★ (2) | 22 mi |
| trustflow plumbing | 5.0★ (1) | In South San Francisco |
| Unique Pools | 5.0★ (2) | 10 mi |
How we ranked South San Francisco pool builders
We scored 189 South San Francisco 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 South San Francisco 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 South San Francisco: frequently asked questions
Who is the best pool builder in South San Francisco?
By CR Score, the highest-ranked pool builder in South San Francisco, CA is Pools Etc. with a CR Score of 60/100. It has 4.8★ from 366 Google reviews. G-whizz Pool Cleaning (#2) and Poolsafe, LLC (#3) follow. We ranked 189 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in South San Francisco?
ContractorsRanked ranks 189 pool builders serving South San Francisco, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in South San Francisco are open 24/7?
10 ranked pool builders in South San Francisco post 24/7 hours. The highest-ranked are G-whizz Pool Cleaning (#2), Claremont Pools (#13) and Celtic Pool Service - Pool Repair Service Oakland CA (#23). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in South San Francisco work on weekends?
88 of 189 ranked pool builders post Saturday hours and 45 post Sunday hours. The highest-ranked open Saturdays are G-whizz Pool Cleaning (#2), Paradise Valley Spas San Mateo (#4) and Lucky's Pool Center (#6). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do South San Francisco pool builders have?
The median Google rating among 189 rated pool builders in South San Francisco is 4.7★, with a median of 12 reviews. Pools Etc. has the most, 366 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 South San Francisco count in this ranking?
Yes, if they are within 40 mi of the South San Francisco 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 South San Francisco
- November 2026: CR Scores recalculated for 189 pool builders serving South San Francisco.
- November 2026: 3 duplicate listings merged.
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