63/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 364 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pool Builders in Central Islip, NY (2026)
402 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Central Islip: Bob the Diver, CR Score 63/100; 5.0★ from 364 Google reviews; open 7 days a week.
- 10
Best for emergencies (open 24/7): Long Island Pool Covers, posts 24/7 hours; ranked #10 of 402.
- 2
Most-reviewed: Island Recreational, 2,882 Google reviews at 4.5★, the most of 402 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
402 Central Islip pool builders are ranked here by CR Score, from ten published factors. 31 are open 24/7, 262 open Saturdays and 104 open Sundays, based on posted hours. The median Google rating is 4.6★ across 402 rated businesses.
Top 10 pool builders in Central Islip at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bob the Diver | 63 | 5.0★ (364) | Ronkonkoma, 6 mi away | Sat · Sun · Evenings | Overall |
| 2 | Island Recreational | 62 | 4.5★ (2,882) | Massapequa, 16 mi away | Sat · Sun | Most reviews |
| 3 | Advantage L.I. | 61 | 4.9★ (218) | Holbrook, 7 mi away | Sat · Sun | — |
| 4 | Suntek Pools & Spas | 61 | 4.9★ (319) | Farmingdale, 12 mi away | Sat · Sun | — |
| 5 | Pool Doctor | 60 | 4.8★ (604) | East Northport, 9 mi away | Sat | — |
| 6 | Dolphin Pool Supply | 60 | 4.6★ (226) | Lake Ronkonkoma, 5 mi away | Sat · Sun | — |
| 7 | Scuba Snak - Swimming Pool Leak Detection | 60 | 5.0★ (531) | Centereach, 31 mi away | Sat · Sun · Evenings | — |
| 8 | Lifeguard LI | 60 | 4.9★ (159) | Glen Cove, 23 mi away | Sat · Sun · Emergency | — |
| 9 | Long Island Pool and Patio | 59 | 4.8★ (176) | Coram, 11 mi away | Sat · Sun | — |
| 10 | Long Island Pool Covers | 59 | 5.0★ (109) | Selden, 24 mi away | 24/7 | Emergencies |
The 402 best pool builders in Central Islip, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Massapequa, 16 mi away
62/100CR ScoreRanked #2 because of its Google rating and review volume: 4.5★ from 2,882 Google reviews, the most in Central Islip.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holbrook, 7 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 218 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmingdale, 12 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 319 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#5 Pool Doctor
Based in East Northport, 9 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 604 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Ronkonkoma, 5 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 226 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Centereach, 31 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 531 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#8 Lifeguard LI
Based in Glen Cove, 23 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coram, 11 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 176 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Selden, 24 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 109 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Central Islip
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.7★ from 155 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bohemia, 6 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 213 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Ronkonkoma, 5 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 55 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Fresh Blue Pools
Based in West Babylon, 9 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 141 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Commack, 5 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 106 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmingville, 10 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 115 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holbrook, 7 mi away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.5★ from 383 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Amityville, 14 mi away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 108 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Commack, 5 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#20 Coversafe, Inc.
Based in Bayport, 14 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 370 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holbrook, 2 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Central Islip
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#23 Backyard Masters
Based in Farmingdale, 13 mi away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.2★ from 378 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holbrook, 6 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.4★ from 215 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bohemia, 6 mi away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.6★ from 400 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 402 ranked pool builders here; the rest are on their profiles.
Also serving Central Islip
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 |
|---|---|---|
| Aqua-Qual Swimming Pool Co | 5.0★ (2) | 13 mi |
| Commercial Clearwater Company, Inc. | 5.0★ (2) | 22 mi |
| Five Star Pool Liners Islandia | 3.0★ (2) | 2 mi |
| Imperial Gunite | 5.0★ (2) | 5 mi |
| Infinia Coatings | 5.0★ (1) | In Central Islip |
| J&R Pools | 5.0★ (2) | 6 mi |
| JM Pool Professionals LLC | 5.0★ (2) | 18 mi |
| Li Pools | 5.0★ (2) | 4 mi |
| Lifestyle Swimming Pools and Spa | 3.0★ (2) | 18 mi |
| MWS Asset Management | 4.7★ (24) | In Central Islip |
| Northway Pool Servce | 3.5★ (2) | 6 mi |
| Palatial Pools Inc. | 5.0★ (2) | 16 mi |
| pool solutions | 3.0★ (2) | 2 mi |
| Precision Pool Solutions Inc | 1.0★ (2) | 14 mi |
| Quogue Swimming Pool Service, Inc. | 3.0★ (2) | 19 mi |
| Suffolk Elite Marble Dust | 1.0★ (2) | 11 mi |
| Swimming Pools By Jack Anthony | 2.0★ (2) | 21 mi |
| Tony’s D and pool service | 5.0★ (2) | 12 mi |
| Z pool boy | 5.0★ (2) | 12 mi |
| Zorn Labor Supply & Pools | 5.0★ (2) | 16 mi |
How we ranked Central Islip pool builders
We scored 402 Central Islip 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 Central Islip 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 Central Islip: frequently asked questions
Who is the best pool builder in Central Islip?
By CR Score, the highest-ranked pool builder in Central Islip, NY is Bob the Diver with a CR Score of 63/100. It has 5.0★ from 364 Google reviews. It is open 7 days a week. Island Recreational (#2) and Advantage L.I. (#3) follow. We ranked 402 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Central Islip?
ContractorsRanked ranks 402 pool builders serving Central Islip, NY. 2 of them are based in Central Islip; 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 Central Islip are open 24/7?
31 ranked pool builders in Central Islip post 24/7 hours. The highest-ranked is Long Island Pool Covers (#10). Lifeguard LI (#8) also lists emergency service. Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Central Islip work on weekends?
262 of 402 ranked pool builders post Saturday hours and 104 post Sunday hours. The highest-ranked open Saturdays are Bob the Diver (#1), Island Recreational (#2) and Advantage L.I. (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Central Islip pool builders have?
The median Google rating among 402 rated pool builders in Central Islip is 4.6★, with a median of 17 reviews. Island Recreational has the most, 2,882 reviews, and ranks #2. 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 Central Islip count in this ranking?
Yes, if they are within 40 mi of the Central Islip 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 Central Islip
- November 2026: CR Scores recalculated for 402 pool builders serving Central Islip.
- November 2026: 2 duplicate listings merged.
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