63/100CR Score
Ranked #1 because of its Google rating and review volume: 4.7★ from 494 Google reviews, the most in Frederick.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pool Builders in Frederick, MD (2026)
188 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Frederick: Capital Hot Tubs & Saunas – Clarksburg, CR Score 63/100; 4.7★ from 494 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Manns Pool Water Delivery, posts 24/7 hours; ranked #2 of 188.
- 4
Most-reviewed: Hydro Pool & Spa, Inc., 483 Google reviews at 4.5★, the most of 188 ranked after Capital Hot Tubs & Saunas – Clarksburg; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
188 Frederick pool builders are ranked here by CR Score, from ten published factors. 15 are open 24/7, 94 open Saturdays and 33 open Sundays, based on posted hours. The median Google rating is 4.7★ across 188 rated businesses.
Top 10 pool builders in Frederick at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Capital Hot Tubs & Saunas – Clarksburg | 63 | 4.7★ (494) | Clarksburg, 11 mi away | Sat · Sun | Overall |
| 2 | Manns Pool Water Delivery | 60 | 5.0★ (89) | Westminster, 26 mi away | 24/7 | Emergencies |
| 3 | Capital Hot Tubs & Saunas – Rockville | 59 | 4.6★ (301) | Rockville, 27 mi away | Sat · Sun | — |
| 4 | Hydro Pool & Spa, Inc. | 59 | 4.5★ (483) | Gaithersburg, 22 mi away | Sat | Most reviews |
| 5 | Capital Hot Tubs & Saunas – Fairfax | 59 | 4.7★ (389) | Fairfax, 39 mi away | Sat · Sun | — |
| 6 | Cover Care, LLC | 59 | 4.7★ (110) | Frederick | — | — |
| 7 | Darling & Daughters | 58 | 4.2★ (39) | Frederick | 24/7 | — |
| 8 | Flohr Pools, Inc. | 58 | 4.7★ (233) | Hagerstown, 21 mi away | Sat | — |
| 9 | Flohr Pools, Inc. | 58 | 4.7★ (364) | Martinsburg, 31 mi away | Sat | — |
| 10 | Flohr Pools, Inc. | 58 | 4.8★ (407) | Chambersburg, 37 mi away | Sat | — |
The 188 best pool builders in Frederick, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Westminster, 26 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockville, 27 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.6★ from 301 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gaithersburg, 22 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.5★ from 483 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfax, 39 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 389 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Frederick
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 110 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Frederick
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.2★ from 39 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hagerstown, 21 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 233 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Martinsburg, 31 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 364 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chambersburg, 37 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 407 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chantilly, 36 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.5★ from 329 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#12 System Pools LLC
Based in Rockville, 30 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 102 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#13 Subcomm Pools
Based in Falls Church, 39 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 137 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Frederick
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 87 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#15 B&D Pools LLC
Based in Silver Spring, 31 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 88 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Westminster, 23 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 313 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vienna, 37 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 70 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Germantown, 15 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.5★ from 124 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chantilly, 36 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Frederick
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 3.9★ from 105 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jessup, 38 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.5★ from 389 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Frederick
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sterling, 29 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Frederick
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 51 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bowleys Quarters, 29 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 23 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 188 ranked pool builders here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | High Quality Pool Services | 56 | 5.0★ (36) | 29 mi |
| 27 | Cozy Backyard Pools & Patios | 56 | 4.1★ (53) | 15 mi |
| 28 | Blue Horizon Construction, LLC | 56 | 5.0★ (23) | In Frederick |
| 29 | Watercrafters | 56 | 4.5★ (98) | 21 mi |
| 30 | HYDRATECH LLC | 55 | 5.0★ (59) | 29 mi |
| 31 | Wagner Aquatics | 55 | 4.9★ (16) | 20 mi |
| 32 | Twins Rosa Swimming Pool LLC | 55 | 5.0★ (26) | 19 mi |
| 33 | Dog Days of Summer Pool Service | 55 | 4.8★ (18) | In Frederick |
| 34 | DC PRO Pool Service | 55 | 5.0★ (35) | 26 mi |
| 35 | Van Dorn Pools & Spas | 55 | 4.5★ (130) | 31 mi |
| 36 | Sunshine Spa and Pool Supply | 55 | 4.5★ (132) | 31 mi |
| 37 | Dixon Pool Service | 55 | 4.8★ (17) | In Frederick |
| 38 | Pool Inspections By Howard LLC | 55 | 5.0★ (15) | 23 mi |
| 39 | Pearl Pool Plastering | 54 | 4.9★ (74) | 26 mi |
| 40 | Mark's Water Delivery, LLC | 54 | 4.7★ (47) | 29 mi |
| 41 | Aquatic Waves | 54 | 5.0★ (30) | 26 mi |
| 42 | Pro Pools LLC | 54 | 4.3★ (160) | 22 mi |
| 43 | Mark’s Pool Water | 54 | 5.0★ (7) | 28 mi |
| 44 | American Pool Service, Inc. | 54 | 4.9★ (35) | 29 mi |
| 45 | Patriot Pool Services LLC | 54 | 4.7★ (81) | 26 mi |
| 46 | A & A Pools & Supplies Inc | 54 | 4.4★ (91) | 29 mi |
| 47 | Pool Guppy | 53 | 5.0★ (13) | 29 mi |
| 48 | Pro Pool Fence | 53 | 5.0★ (10) | 37 mi |
| 49 | Buchmyer's Pools Inc | 53 | 4.6★ (67) | 35 mi |
| 50 | Bartz Landscaping LLC | 53 | 4.6★ (193) | In Frederick |
Also serving Frederick
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 |
|---|---|---|
| Bluewater Pool Services | 5.0★ (2) | 33 mi |
| Custom Home Pools | 5.0★ (1) | 27 mi |
| Digger Demolition | 5.0★ (6) | In Frederick |
| Elysium Pools | 5.0★ (1) | 25 mi |
| Frederick Pool Service | 5.0★ (2) | In Frederick |
| Huston Pools | 3.0★ (2) | 39 mi |
| Innovative Aquatic Designs, LLC | 5.0★ (2) | 34 mi |
| Jazzie Pools | 5.0★ (2) | 39 mi |
| Mid Maryland Pool Service LLC and Christmas Decor | 5.0★ (1) | In Frederick |
| Monzter Pool Services | 5.0★ (1) | 25 mi |
| New Village Pools & Outdoor Solutions | 5.0★ (1) | 23 mi |
| Patriot Pool & Spa LLC | 5.0★ (1) | 22 mi |
| PoolStar Management | 5.0★ (1) | 23 mi |
| Rosetta Pool & Spa Services Inc | 5.0★ (1) | 26 mi |
| S H Pools | 5.0★ (2) | 25 mi |
| Sam the Pool Man | 3.0★ (2) | 23 mi |
| SelectDecks | 5.0★ (2) | 22 mi |
| SWAN Pool Management Inc. | 5.0★ (1) | 26 mi |
| Toes In The Water Pool Service | 5.0★ (2) | 20 mi |
| Twin Pool and Spa Ijamsville | 5.0★ (2) | 7 mi |
How we ranked Frederick pool builders
We scored 188 Frederick 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 Frederick 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 Frederick: frequently asked questions
Who is the best pool builder in Frederick?
By CR Score, the highest-ranked pool builder in Frederick, MD is Capital Hot Tubs & Saunas – Clarksburg with a CR Score of 63/100. It has 4.7★ from 494 Google reviews. It is open 7 days a week. Manns Pool Water Delivery (#2) and Capital Hot Tubs & Saunas – Rockville (#3) follow. We ranked 188 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Frederick?
ContractorsRanked ranks 188 pool builders serving Frederick, MD. 10 of them are based in Frederick; 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 Frederick are open 24/7?
15 ranked pool builders in Frederick post 24/7 hours. The highest-ranked are Manns Pool Water Delivery (#2), Darling & Daughters (#7) and Finn's Pool & Spa Service (#17). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Frederick work on weekends?
94 of 188 ranked pool builders post Saturday hours and 33 post Sunday hours. The highest-ranked open Saturdays are Capital Hot Tubs & Saunas – Clarksburg (#1), Manns Pool Water Delivery (#2) and Capital Hot Tubs & Saunas – Rockville (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Frederick pool builders have?
The median Google rating among 188 rated pool builders in Frederick is 4.7★, with a median of 21 reviews. Capital Hot Tubs & Saunas – Clarksburg has the most, 494 reviews, and ranks #1. 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 Frederick count in this ranking?
Yes, if they are within 40 mi of the Frederick 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 Frederick
- November 2026: CR Scores recalculated for 188 pool builders serving Frederick.
- November 2026: 2 duplicate listings merged.
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