61/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “Swimming pool contractor”.
Best Pool Builders in Greenwich, CT (2026)
596 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Greenwich: Lifeguard LI, CR Score 61/100; 4.9★ from 159 Google reviews; open 7 days a week.
- 8
Best for emergencies (open 24/7): Wizard of Pools Inc, posts 24/7 hours; ranked #8 of 596.
- 2
Most-reviewed: Island Recreational, 2,882 Google reviews at 4.5★, the most of 596 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
596 Greenwich pool builders are ranked here by CR Score, from ten published factors. 45 are open 24/7, 385 open Saturdays and 160 open Sundays, based on posted hours. The median Google rating is 4.7★ across 596 rated businesses.
Most of this list also appears on the Pool builders in Stamford ranking. See Pool builders in Stamford
Top 10 pool builders in Greenwich at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Lifeguard LI | 61 | 4.9★ (159) | Glen Cove, 11 mi away | Sat · Sun · Emergency | Overall |
| 2 | Island Recreational | 60 | 4.5★ (2,882) | Massapequa, 23 mi away | Sat · Sun | Most reviews |
| 3 | OUTSIDE | 59 | 4.9★ (126) | Port Chester, 2 mi away | Sat | — |
| 4 | LEM-US POOLS | 59 | 4.9★ (512) | Hawthorne, 27 mi away | Sat · Sun | — |
| 5 | Suntek Pools & Spas | 59 | 4.9★ (319) | Farmingdale, 23 mi away | Sat · Sun | — |
| 6 | Pool Leak Detection LLC | 59 | 5.0★ (320) | Woodbury, 29 mi away | Sat · Sun · Evenings | — |
| 7 | Bob the Diver | 59 | 5.0★ (364) | Ronkonkoma, 31 mi away | Sat · Sun · Evenings | — |
| 8 | Wizard of Pools Inc | 59 | 5.0★ (80) | East Elmhurst, 23 mi away | 24/7 | Emergencies |
| 9 | Swimming Pool Repair In ground above ground | 59 | 4.9★ (102) | Hackensack, 24 mi away | 24/7 | — |
| 10 | Pool Doctor | 59 | 4.8★ (604) | East Northport, 19 mi away | Sat | — |
The 596 best pool builders in Greenwich, 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 Massapequa, 23 mi away
60/100CR ScoreRanked #2 because of its Google rating and review volume: 4.5★ from 2,882 Google reviews, the most in Greenwich.
#3 OUTSIDE
Based in Port Chester, 2 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 126 Google reviews, listed on Google as “Swimming pool repair service”.
#4 LEM-US POOLS
Based in Hawthorne, 27 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 512 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Farmingdale, 23 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 319 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Woodbury, 29 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 320 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Ronkonkoma, 31 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 364 Google reviews, listed on Google as “Swimming pool repair service”.
Based in East Elmhurst, 23 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 80 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Hackensack, 24 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 102 Google reviews, listed on Google as “Swimming pool contractor”.
#10 Pool Doctor
Based in East Northport, 19 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 604 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Long Island City, 23 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Mahopac, 24 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Swimming pool contractor”.
Based in New York City, 17 mi away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Tenafly, 19 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Jefferson Valley-Yorktown, 24 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 238 Google reviews, listed on Google as “Swimming pool contractor”.
#16 Advantage L.I.
Based in Holbrook, 32 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 218 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Norwalk, 13 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 20 Google reviews, listed on Google as “Swimming pool contractor”.
Based in New City, 18 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Swimming pool repair service”.
#19 Aquacade Pools
Based in Hicksville, 19 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 268 Google reviews, listed on Google as “Swimming pool contractor”.
#20 Coversafe, Inc.
Based in Little Ferry, 25 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 515 Google reviews, listed on Google as “Swimming pool contractor”.
Based in New Canaan, 8 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Stamford, 4 mi away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Jamaica, 21 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Westwood, 21 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 178 Google reviews, listed on Google as “Swimming pool contractor”.
#25 Rogliano Pools
Based in Eastchester, 11 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Swimming pool contractor”.
How we ranked Greenwich pool builders
We scored 596 Greenwich 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 2, 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 Greenwich 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 Greenwich: frequently asked questions
Who is the best pool builder in Greenwich?
By CR Score, the highest-ranked pool builder in Greenwich, CT is Lifeguard LI with a CR Score of 61/100. It has 4.9★ from 159 Google reviews. It is open 7 days a week. Island Recreational (#2) and OUTSIDE (#3) follow. We ranked 596 pool builders on ten factors, last updated November 2, 2026.
Which pool builders in Greenwich are open 24/7?
45 ranked pool builders in Greenwich post 24/7 hours. The highest-ranked are Wizard of Pools Inc (#8), Swimming Pool Repair In ground above ground (#9) and NEPTUNE POOLS AND SPA (#11). Lifeguard LI (#1) also lists emergency service. Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Greenwich work on weekends?
385 of 596 ranked pool builders post Saturday hours and 160 post Sunday hours. The highest-ranked open Saturdays are Lifeguard LI (#1), Island Recreational (#2) and OUTSIDE (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Greenwich pool builders have?
The median Google rating among 596 rated pool builders in Greenwich is 4.7★, with a median of 21 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 Greenwich count in this ranking?
Yes, if they are within 40 mi of the Greenwich 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 Greenwich
- November 2026: CR Scores recalculated for 596 pool builders serving Greenwich.
- November 2026: 3 duplicate listings merged.
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