56/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.5★ from 227 Google reviews, listed on Google as “Swimming pool contractor”.
Best Pool Builders in Union, MO (2026)
86 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Union: Prestige Pools & Spas, CR Score 56/100; 4.5★ from 227 Google reviews; open Saturdays until 5 PM.
- 7
Best for emergencies (open 24/7): Show Me State Pressure & Softwashing, posts 24/7 hours; ranked #7 of 86.
- 4
Most-reviewed: Two Men and a Spa Dolly, 418 Google reviews at 4.4★, the most of 86 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
86 Union pool builders are ranked here by CR Score, from ten published factors. 4 are open 24/7, 34 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.6★ across 86 rated businesses.
Top 10 pool builders in Union at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Prestige Pools & Spas | 56 | 4.5★ (227) | St. Louis, 34 mi away | Sat | Overall |
| 2 | Reflections Pool Services | 56 | 4.7★ (49) | Saint Peters, 30 mi away | Sat · Sun · Evenings | — |
| 3 | R & S Pool & Spa | 55 | 4.6★ (385) | Maryland Heights, 36 mi away | — | — |
| 4 | Two Men and a Spa Dolly | 55 | 4.4★ (418) | Arnold, 30 mi away | — | Most reviews |
| 5 | Ozark Pool & Spa | 55 | 4.7★ (21) | Washington, 6 mi away | Sat | — |
| 6 | Florida Pool & Spa | 55 | 4.7★ (264) | Maryland Heights, 36 mi away | — | — |
| 7 | Show Me State Pressure & Softwashing | 54 | 5.0★ (125) | Wentzville, 31 mi away | 24/7 | Emergencies |
| 8 | A Z Solutions LLC | 54 | 4.8★ (135) | O'Fallon, 28 mi away | 24/7 | — |
| 9 | H & H Pools | 54 | 4.7★ (13) | Wildwood, 13 mi away | Sat | — |
| 10 | St. Charles Pool Builders | 53 | 5.0★ (10) | St. Louis, 33 mi away | 24/7 | — |
The 86 best pool builders in Union, 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 Saint Peters, 30 mi away
56/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 49 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Maryland Heights, 36 mi away
55/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.6★ from 385 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Arnold, 30 mi away
55/100CR ScoreRanked #4 because of its Google rating and review volume: 4.4★ from 418 Google reviews, the most in Union.
Based in Washington, 6 mi away
55/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 21 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Maryland Heights, 36 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 264 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Wentzville, 31 mi away
54/100CR ScoreRanked #7 because of its Google rating and review volume: 5.0★ from 125 Google reviews.
Based in O'Fallon, 28 mi away
54/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 135 Google reviews.
#9 H & H Pools
Based in Wildwood, 13 mi away
54/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Swimming pool contractor”.
Based in St. Louis, 33 mi away
53/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Washington, 5 mi away
53/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.2★ from 32 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Festus, 36 mi away
53/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 105 Google reviews, listed on Google as “Swimming pool contractor”.
Based in O'Fallon, 30 mi away
53/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 34 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Festus, 37 mi away
53/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.2★ from 173 Google reviews, listed on Google as “Swimming pool contractor”.
#15 The Pool Guys
Based in Troy, 36 mi away
53/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ from 78 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Chesterfield, 25 mi away
53/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Swimming pool contractor”.
#17 Platinum Pools
Based in Washington, 7 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.0★ from 32 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Saint Peters, 31 mi away
53/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.5★ from 108 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Chesterfield, 30 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Swimming pool repair service”.
Based in Kirkwood, 34 mi away
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Swimming pool contractor”.
Based in St. Louis, 32 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.0★ from 102 Google reviews, listed on Google as “Swimming pool repair service”.
Based in O'Fallon, 27 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Saint Peters, 33 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.1★ from 60 Google reviews, listed on Google as “Swimming pool repair service”.
#24 Elevate Pools
Based in O'Fallon, 28 mi away
51/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 42 Google reviews, listed on Google as “Swimming pool contractor”.
Based in Saint Charles, 34 mi away
51/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.2★ from 126 Google reviews, listed on Google as “Swimming pool repair service”.
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 86 ranked pool builders here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Premier Pools & Spas | St. Louis | 51 | 2.9★ (28) | 25 mi |
| 27 | Advanced Pool & Spa | 51 | 4.0★ (75) | 26 mi |
| 28 | Leslie's Pool Supplies | 51 | 3.6★ (45) | 26 mi |
| 29 | Luxe Pool & Spa | 51 | 4.8★ (23) | 27 mi |
| 30 | Bi-State Pool & Spa | 51 | 4.2★ (69) | 30 mi |
| 31 | Paradise Pools | 51 | 4.2★ (31) | 34 mi |
| 32 | Little Giant Pool and Spa | 51 | 4.1★ (13) | 15 mi |
| 33 | Pro Pool Inc | 50 | 3.6★ (36) | 38 mi |
| 34 | Excel landscaping | 50 | 5.0★ (65) | 34 mi |
| 35 | Trinity Pools StL | 50 | 5.0★ (9) | 30 mi |
| 36 | Suntan Pools & Service, Inc. | 50 | 4.6★ (18) | 26 mi |
| 37 | Aqua Luxe Outdoors | 50 | 5.0★ (8) | 26 mi |
| 38 | Little Giant Pool & Spa | 50 | 4.6★ (9) | 15 mi |
| 39 | Louisville Pool Builders | 50 | 5.0★ (3) | 27 mi |
| 40 | Leslie's Pool Supplies | 50 | 3.9★ (59) | 37 mi |
| 41 | Wave Scapes LLC | 50 | 3.7★ (6) | 30 mi |
| 42 | Worthy Pool Contracting | 50 | 5.0★ (14) | 37 mi |
| 43 | Baker Pool Construction | 50 | 4.6★ (16) | 25 mi |
| 44 | Thompson Custom LLC | 50 | 4.7★ (38) | 38 mi |
| 45 | WATERCOLOR POOLS STL | 50 | 5.0★ (16) | 29 mi |
| 46 | Summit Plastering LLC | 50 | 4.4★ (7) | 28 mi |
| 47 | ENCOMPASS POOLS, LLC | 50 | 4.8★ (23) | 35 mi |
| 48 | Solid Ground | 50 | 5.0★ (52) | 24 mi |
| 49 | Schilli Plastering Co. | 50 | 4.6★ (32) | 37 mi |
| 50 | Pool Cover Depot | 49 | 5.0★ (20) | 37 mi |
Also serving Union
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 |
|---|---|---|
| A&M Staining and exterior Cleaning | 5.0★ (90) | In Union |
| AquaSplash LLC | 5.0★ (1) | 29 mi |
| Caribbean Clear Inc | 3.0★ (2) | 37 mi |
| Castlewood Contracting, LLC | 5.0★ (1) | 34 mi |
| Champion Pools | 5.0★ (2) | 38 mi |
| CJ Premier Carpentry | 5.0★ (4) | In Union |
| Diamond Pools Service | 5.0★ (1) | 31 mi |
| Finest Concrete | 5.0★ (1) | 36 mi |
| Luxe Pool & Spa | 5.0★ (1) | 28 mi |
| Meramec Pools & Outdoors | 5.0★ (2) | 35 mi |
| Missouri Constructors | 3.0★ (2) | 29 mi |
| Nelson Land & Pools | 5.0★ (1) | 27 mi |
| PoolReady STL West | 5.0★ (2) | 13 mi |
| Proscape Pools & Landscaping | 5.0★ (1) | 10 mi |
| Ravensridge Pool | 1.0★ (1) | 38 mi |
| Saint Louis Pool and Patio | 5.0★ (1) | 27 mi |
| Squire's Plastering Co | 1.0★ (2) | 37 mi |
| Tri County Pools and Spa LLc | 5.0★ (1) | 24 mi |
| Waters Edge Pools, LLC | 5.0★ (2) | 39 mi |
| Wildwood Best Pools | 5.0★ (1) | 19 mi |
How we ranked Union pool builders
We scored 86 Union 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 Union 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 Union: frequently asked questions
Who is the best pool builder in Union?
By CR Score, the highest-ranked pool builder in Union, MO is Prestige Pools & Spas with a CR Score of 56/100. It has 4.5★ from 227 Google reviews. It is open Saturdays until 5 PM. Reflections Pool Services (#2) and R & S Pool & Spa (#3) follow. We ranked 86 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Union?
ContractorsRanked ranks 86 pool builders serving Union, MO. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in Union are open 24/7?
4 ranked pool builders in Union post 24/7 hours. The highest-ranked are Show Me State Pressure & Softwashing (#7), A Z Solutions LLC (#8) and St. Charles Pool Builders (#10). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Union work on weekends?
34 of 86 ranked pool builders post Saturday hours and 14 post Sunday hours. The highest-ranked open Saturdays are Prestige Pools & Spas (#1), Reflections Pool Services (#2) and Ozark Pool & Spa (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Union pool builders have?
The median Google rating among 86 rated pool builders in Union is 4.6★, with a median of 22 reviews. Two Men and a Spa Dolly has the most, 418 reviews, and ranks #4. 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 Union count in this ranking?
Yes, if they are within 40 mi of the Union 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 Union
- November 2026: CR Scores recalculated for 86 pool builders serving Union.
- November 2026: 1 duplicate listing merged.
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