62/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Swimming pool repair service”.
Best Pool Builders in Hercules, CA (2026)
196 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Hercules: G-whizz Pool Cleaning, CR Score 62/100; 5.0★ from 46 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Claremont Pools, posts 24/7 hours; ranked #7 of 196.
- 3
Most-reviewed: The Hot Tub Store, 403 Google reviews at 4.9★, the most of 196 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
196 Hercules pool builders are ranked here by CR Score, from ten published factors. 6 are open 24/7, 83 open Saturdays and 42 open Sundays, based on posted hours. The median Google rating is 4.7★ across 196 rated businesses.
Top 10 pool builders in Hercules at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | G-whizz Pool Cleaning | 62 | 5.0★ (46) | Vallejo, 8 mi away | 24/7 | Overall |
| 2 | The Hot Tub Store | 62 | 4.9★ (262) | Fairfield, 21 mi away | Sat · Sun | — |
| 3 | The Hot Tub Store | 60 | 4.9★ (403) | Santa Rosa, 38 mi away | Sat · Sun | Most reviews |
| 4 | Leslie's Pool Supplies | 59 | 4.5★ (81) | Pleasant Hill, 13 mi away | Sat · Sun | — |
| 5 | The Pool Doctor | 59 | 4.7★ (110) | El Sobrante, 3 mi away | — | — |
| 6 | Skim N Dip | 58 | 4.9★ (142) | Concord, 15 mi away | — | — |
| 7 | Claremont Pools | 58 | 4.8★ (25) | Concord, 22 mi away | 24/7 | Emergencies |
| 8 | Marin Pool Renovators | 58 | 4.9★ (30) | Novato, 16 mi away | Sat · Sun · Evenings | — |
| 9 | North Bay Water Services Inc. | 58 | 4.7★ (233) | Fairfield, 20 mi away | — | — |
| 10 | Baby Proof Pool Safety Nets and Fencing | 57 | 5.0★ (17) | Berkeley, 10 mi away | Sat · Sun | — |
The 196 best pool builders in Hercules, 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 Fairfield, 21 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 262 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Santa Rosa, 38 mi away
60/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 403 Google reviews, the most in Hercules.
Based in Pleasant Hill, 13 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.5★ from 81 Google reviews, listed on Google as “Swimming pool repair service”.
Based in El Sobrante, 3 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 110 Google reviews, listed on Google as “Swimming pool contractor”.
#6 Skim N Dip
Based in Concord, 15 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 142 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Concord, 22 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Novato, 16 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Fairfield, 20 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 233 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Berkeley, 10 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Antioch, 31 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 292 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Concord, 13 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Swimming pool repair service”.
#13 Poolsafe, LLC
Based in San Francisco, 18 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 128 Google reviews, listed on Google as “Swimming pool repair service”.
#14 Pool Yeti's
Based in Richmond, 18 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Walnut Creek, 15 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Concord, 13 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.1★ from 46 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Oakland, 17 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Danville, 21 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 104 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Napa, 17 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 77 Google reviews, listed on Google as “Swimming pool contractor”.
Based in El Sobrante, 2 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Livermore, 37 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 66 Google reviews, listed on Google as “Swimming pool repair service”.
Based in San Rafael, 15 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Swimming pool contractor”.
#23 Pools Etc.
Based in Menlo Park, 38 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.8★ from 366 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Clayton, 20 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “Swimming pool repair service”.
#25 CoverSafe
Based in Pittsburg, 22 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ 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 196 ranked pool builders here; the rest are on their profiles.
Also serving Hercules
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 |
|---|---|---|
| Almaden Pool Services | 3.0★ (2) | 27 mi |
| American Built Pools | 3.0★ (2) | 27 mi |
| American Built Pools Inc | 3.0★ (2) | 17 mi |
| Berkeley Pool Remodeling | 5.0★ (2) | 10 mi |
| Blackard Pool Construction | 5.0★ (2) | 18 mi |
| Blue Champagne Pools | 3.0★ (2) | 27 mi |
| Bulldog's Pool & Spa Services | 4.0★ (2) | 31 mi |
| Delta Gunite | 5.0★ (2) | 32 mi |
| Diablo Pool Pros | 4.5★ (2) | 13 mi |
| Diverse Scape Pools & Spas, Inc. | 5.0★ (2) | 20 mi |
| Four Seasons Pool Services | 3.0★ (2) | 31 mi |
| Pacific Pools Inc | 5.0★ (2) | 21 mi |
| Pool Scene Inc | 5.0★ (2) | 17 mi |
| Quality Crystal Clear Pool Company | 5.0★ (2) | 28 mi |
| Rivera Family Pools & Remodeling | 5.0★ (2) | 14 mi |
| Shamrock Pool Fiberglass Inc | 3.0★ (2) | 15 mi |
| Sonoma Backyard Pool Construction | 5.0★ (2) | 32 mi |
| Tide Wave Pools Inc. | 5.0★ (2) | 19 mi |
| Town & Country Pool Services | 5.0★ (2) | 15 mi |
| Unique Pools | 5.0★ (2) | 17 mi |
How we ranked Hercules pool builders
We scored 196 Hercules 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 Hercules 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 Hercules: frequently asked questions
Who is the best pool builder in Hercules?
By CR Score, the highest-ranked pool builder in Hercules, CA is G-whizz Pool Cleaning with a CR Score of 62/100. It has 5.0★ from 46 Google reviews. It is open 24/7. The Hot Tub Store (#2) and The Hot Tub Store (#3) follow. We ranked 196 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Hercules?
ContractorsRanked ranks 196 pool builders serving Hercules, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in Hercules are open 24/7?
6 ranked pool builders in Hercules post 24/7 hours. The highest-ranked are G-whizz Pool Cleaning (#1), Claremont Pools (#7) and Two Brothers Pool & Spa (#20). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Hercules work on weekends?
83 of 196 ranked pool builders post Saturday hours and 42 post Sunday hours. The highest-ranked open Saturdays are G-whizz Pool Cleaning (#1), The Hot Tub Store (#2) and The Hot Tub Store (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Hercules pool builders have?
The median Google rating among 196 rated pool builders in Hercules is 4.7★, with a median of 11 reviews. The Hot Tub Store has the most, 403 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 Hercules count in this ranking?
Yes, if they are within 40 mi of the Hercules 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 Hercules
- November 2026: CR Scores recalculated for 196 pool builders serving Hercules.
- November 2026: 4 duplicate listings merged.
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