60/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.5★ from 100 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pool Builders in Dover, NH (2026)
77 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Dover: White Mountain Pool & Spa, CR Score 60/100; 4.5★ from 100 Google reviews; open 7 days a week.
- 13
Best for emergencies (open 24/7): SSG Pools (Maine), posts 24/7 hours; ranked #13 of 77.
- 11
Most-reviewed: Reeds Ferry Sheds, 1,193 Google reviews at 5.0★, the most of 77 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
77 Dover pool builders are ranked here by CR Score, from ten published factors. 9 are open 24/7, 50 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 4.6★ across 77 rated businesses.
Top 10 pool builders in Dover at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | White Mountain Pool & Spa | 60 | 4.5★ (100) | Somersworth, 3 mi away | Sat · Sun | Overall |
| 2 | Ace Pool Services | 58 | 4.9★ (103) | Rochester, 15 mi away | — | — |
| 3 | St. Cyr Pool & Spa | 58 | 4.7★ (98) | Portsmouth, 16 mi away | Sat · Sun | — |
| 4 | Northern Pool & Spa | 58 | 4.7★ (101) | Eliot, 6 mi away | Sat | — |
| 5 | St. Cyr Pool & Spa | 57 | 4.6★ (245) | Hampstead, 28 mi away | Sat · Sun | — |
| 6 | E-Z Test Pool Supplies | 57 | 4.6★ (220) | Plaistow, 29 mi away | Sat · Sun | — |
| 7 | The Pool Shed | 57 | 4.8★ (152) | Biddeford, 36 mi away | Sat · Sun | — |
| 8 | E-Z Test Pool Supplies | 57 | 4.7★ (192) | Derry, 31 mi away | Sat · Sun | — |
| 9 | Aqua Paradise Pools & Spas | 56 | 4.5★ (81) | Portsmouth, 11 mi away | Sat | — |
| 10 | Seacoast Pool and Spa | 55 | 4.4★ (13) | Dover | Sat | — |
The 77 best pool builders in Dover, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Rochester, 15 mi away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 103 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Portsmouth, 16 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 98 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Eliot, 6 mi away
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 101 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hampstead, 28 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 245 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plaistow, 29 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 220 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Biddeford, 36 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 152 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Derry, 31 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 192 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portsmouth, 11 mi away
56/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.5★ from 81 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dover
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.4★ from 13 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hudson, 37 mi away
55/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 1,193 Google reviews, the most in Dover.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dover
55/100CR ScoreRanked #12 because of its Google rating and trade focus: 3.7★ from 58 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Biddeford, 27 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sanford, 16 mi away
54/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 56 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Haverhill, 29 mi away
54/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Haverhill, 37 mi away
54/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 44 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Amesbury, 25 mi away
54/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.6★ from 78 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kingston, 21 mi away
53/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sanford, 19 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 3.8★ from 32 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#20 Wilson pools
Based in Amesbury, 23 mi away
53/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.6★ from 24 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 SSG Pools
Based in Hudson, 39 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#22 ACR Pools
Based in Pembroke, 33 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 24 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bedford, 36 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 3.8★ from 181 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 35 mi away
52/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 10 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 77 ranked pool builders here; the rest are on their profiles.
Also serving Dover
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 |
|---|---|---|
| AEM Pool Renovations | 5.0★ (1) | 33 mi |
| American Pool Liners Bedford | 1.0★ (2) | 36 mi |
| Classic Creations | 30 mi | |
| Coastal Points Construction LLC | 4.0★ (12) | In Dover |
| Coversafe | 5.0★ (2) | 21 mi |
| Creative Edge Pools of NH | In Dover | |
| Gemini Pool Service Inc | In Dover | |
| Granite Pools & Outdoor Living | 7 mi | |
| Green Monster Landscapes, LLC | 4.7★ (25) | In Dover |
| Gunite Construction | 3.5★ (2) | 40 mi |
| High Ground Service Pros - Plumbers Electricians & HVAC Technicians | 4.9★ (167) | In Dover |
| J. R. Heald Builders, LLC | 5.0★ (10) | In Dover |
| Luxury Pools | 3.0★ (2) | 39 mi |
| Miracle Method Surface Refinishing | 4.8★ (128) | In Dover |
| MJM Concrete | 1.0★ (1) | In Dover |
| Mr. Electric of Southeast NH | 4.9★ (431) | In Dover |
| Performance pool service llc | 5.0★ (2) | 29 mi |
| Plastering Pools | 5.0★ (1) | 35 mi |
| Poolman | 1.0★ (1) | 33 mi |
| Priority Outdoor Services | 29 mi |
How we ranked Dover pool builders
We scored 77 Dover 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 Dover 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 Dover: frequently asked questions
Who is the best pool builder in Dover?
By CR Score, the highest-ranked pool builder in Dover, NH is White Mountain Pool & Spa with a CR Score of 60/100. It has 4.5★ from 100 Google reviews. It is open 7 days a week. Ace Pool Services (#2) and St. Cyr Pool & Spa (#3) follow. We ranked 77 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Dover?
ContractorsRanked ranks 77 pool builders serving Dover, NH. 2 of them are based in Dover; 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 Dover are open 24/7?
9 ranked pool builders in Dover post 24/7 hours. The highest-ranked are SSG Pools (Maine) (#13), Presidential Pools LLC (#15) and Coleco Family Pool & Spa Center (#19). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Dover work on weekends?
50 of 77 ranked pool builders post Saturday hours and 21 post Sunday hours. The highest-ranked open Saturdays are White Mountain Pool & Spa (#1), St. Cyr Pool & Spa (#3) and Northern Pool & Spa (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Dover pool builders have?
The median Google rating among 77 rated pool builders in Dover is 4.6★, with a median of 22 reviews. Reeds Ferry Sheds has the most, 1,193 reviews, and ranks #11. 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 Dover count in this ranking?
Yes, if they are within 40 mi of the Dover 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 Dover
- November 2026: CR Scores recalculated for 77 pool builders serving Dover.
- November 2026: 1 duplicate listing merged.
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