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”.
Best Pool Builders in Medford, NY (2026)
376 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Medford: Bob the Diver, CR Score 63/100; 5.0★ from 364 Google reviews; open 7 days a week.
- 4
Best for emergencies (open 24/7): Long Island Pool Covers, posts 24/7 hours; ranked #4 of 376.
- 6
Most-reviewed: Island Recreational, 2,882 Google reviews at 4.5★, the most of 376 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
376 Medford pool builders are ranked here by CR Score, from ten published factors. 27 are open 24/7, 246 open Saturdays and 93 open Sundays, based on posted hours. The median Google rating is 4.6★ across 376 rated businesses.
Top 10 pool builders in Medford at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bob the Diver | 63 | 5.0★ (364) | Ronkonkoma, 5 mi away | Sat · Sun · Evenings | Overall |
| 2 | Advantage L.I. | 61 | 4.9★ (218) | Holbrook, 4 mi away | Sat · Sun | — |
| 3 | Scuba Snak - Swimming Pool Leak Detection | 61 | 5.0★ (531) | Centereach, 20 mi away | Sat · Sun · Evenings | — |
| 4 | Long Island Pool Covers | 61 | 5.0★ (109) | Selden, 13 mi away | 24/7 | Emergencies |
| 5 | Long Island Pool and Patio | 61 | 4.8★ (176) | Coram, 4 mi away | Sat · Sun | — |
| 6 | Island Recreational | 60 | 4.5★ (2,882) | Massapequa, 26 mi away | Sat · Sun | Most reviews |
| 7 | Dolphin Pool Supply | 60 | 4.6★ (226) | Lake Ronkonkoma, 6 mi away | Sat · Sun | — |
| 8 | Coversafe, Inc. | 59 | 5.0★ (370) | Bayport, 4 mi away | — | — |
| 9 | The Poolsmith Inc. | 59 | 4.6★ (115) | Farmingville, 2 mi away | Sat · Sun | — |
| 10 | Suntek Pools & Spas | 59 | 4.9★ (319) | Farmingdale, 23 mi away | Sat · Sun | — |
The 376 best pool builders in Medford, 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 Holbrook, 4 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 218 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Centereach, 20 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 531 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Selden, 13 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 109 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Coram, 4 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 176 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Massapequa, 26 mi away
60/100CR ScoreRanked #6 because of its Google rating and review volume: 4.5★ from 2,882 Google reviews, the most in Medford.
Based in Lake Ronkonkoma, 6 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.6★ from 226 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Bayport, 4 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 370 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Farmingville, 2 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 115 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Farmingdale, 23 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 319 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Bohemia, 5 mi away
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 213 Google reviews, listed on Google as “Swimming pool contractor”.
#12 Pool Doctor
Based in East Northport, 17 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 604 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Holbrook, 5 mi away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.5★ from 383 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Lake Ronkonkoma, 7 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 55 Google reviews, listed on Google as “Swimming pool repair service”.
#15 Provision Pools
Based in Coram, 8 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 55 Google reviews, listed on Google as “Swimming pool contractor”.
#16 Padilla pools
Based in Brentwood, 9 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 67 Google reviews, listed on Google as “Swimming pool contractor”.
#17 Lifeguard LI
Based in Glen Cove, 33 mi away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “Swimming pool contractor”.
#18 iHeart Pools
Based in Holtsville, 3 mi away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Miller Place, 7 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Ronkonkoma, 4 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Swimming pool contractor”.
#21 The Pool Buddy
Based in Centereach, 2 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Holbrook, 5 mi away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 215 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Bohemia, 6 mi away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.6★ from 400 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Coram, 4 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 172 Google reviews, listed on Google as “Swimming pool contractor”.
#25 DS Pools Corp.
Based in North Bellport, 4 mi away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 42 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 376 ranked pool builders here; the rest are on their profiles.
Also serving Medford
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 |
|---|---|---|
| Alliance fence co | 4.9★ (57) | In Medford |
| BANDERA POOL | 5.0★ (2) | 16 mi |
| Blue Castle Pools and Masonry | 5.0★ (1) | In Medford |
| Circuit pro electric llc | 5.0★ (2) | In Medford |
| Five Star Pool Liners Islandia | 3.0★ (2) | 9 mi |
| iHeart Pools | In Medford | |
| Imperial Gunite | 5.0★ (2) | 9 mi |
| J&R Pools | 5.0★ (2) | 6 mi |
| JM Pool Professionals LLC | 5.0★ (2) | 8 mi |
| Li Pools | 5.0★ (2) | 7 mi |
| Northway Pool Servce | 3.5★ (2) | 9 mi |
| pool solutions | 3.0★ (2) | 13 mi |
| Prestige Swimming Pools | 3.0★ (2) | 16 mi |
| Suffolk Elite Marble Dust | 1.0★ (2) | In Medford |
| Sun Brite Pool Services Inc | 5.0★ (2) | 21 mi |
| Sunnyside Pools | 5.0★ (2) | 20 mi |
| Swimming Pools By Jack Anthony | 2.0★ (2) | 11 mi |
| Tri-State Gunite LP | In Medford | |
| Water Wellness | In Medford | |
| Z pool boy | 5.0★ (2) | 8 mi |
How we ranked Medford pool builders
We scored 376 Medford 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 Medford 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 Medford: frequently asked questions
Who is the best pool builder in Medford?
By CR Score, the highest-ranked pool builder in Medford, 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. Advantage L.I. (#2) and Scuba Snak - Swimming Pool Leak Detection (#3) follow. We ranked 376 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Medford?
ContractorsRanked ranks 376 pool builders serving Medford, NY. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in Medford are open 24/7?
27 ranked pool builders in Medford post 24/7 hours. The highest-ranked is Long Island Pool Covers (#4). Lifeguard LI (#17) also lists emergency service. Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Medford work on weekends?
246 of 376 ranked pool builders post Saturday hours and 93 post Sunday hours. The highest-ranked open Saturdays are Bob the Diver (#1), Advantage L.I. (#2) and Scuba Snak - Swimming Pool Leak Detection (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Medford pool builders have?
The median Google rating among 376 rated pool builders in Medford is 4.6★, with a median of 19 reviews. Island Recreational has the most, 2,882 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 Medford count in this ranking?
Yes, if they are within 40 mi of the Medford 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 Medford
- November 2026: CR Scores recalculated for 376 pool builders serving Medford.
- November 2026: 2 duplicate listings merged.
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