58/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.4★ from 75 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 Upper Alton, IL (2026)
103 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Upper Alton: Backyard Dreams, CR Score 58/100; 4.4★ from 75 Google reviews; open Saturdays until 1 PM.
- 8
Best for emergencies (open 24/7): Show Me State Pressure & Softwashing, posts 24/7 hours; ranked #8 of 103.
- 10
Most-reviewed: Two Men and a Spa Dolly, 418 Google reviews at 4.4★, the most of 103 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
103 Upper Alton pool builders are ranked here by CR Score, from ten published factors. 5 are open 24/7, 43 open Saturdays and 16 open Sundays, based on posted hours. The median Google rating is 4.4★ across 103 rated businesses.
Top 10 pool builders in Upper Alton at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Backyard Dreams | 58 | 4.4★ (75) | Alton, 1 mi away | Sat | Overall |
| 2 | R & S Pool & Spa | 58 | 4.6★ (385) | Maryland Heights, 21 mi away | — | — |
| 3 | Florida Pool & Spa | 57 | 4.7★ (264) | Maryland Heights, 20 mi away | — | — |
| 4 | Perigen Pools And Supplies | 57 | 4.4★ (92) | Granite City, 14 mi away | — | — |
| 5 | Prestige Pools & Spas | 56 | 4.5★ (227) | St. Louis, 28 mi away | Sat | — |
| 6 | Reflections Pool Services | 56 | 4.7★ (49) | Saint Peters, 27 mi away | Sat · Sun · Evenings | — |
| 7 | Dugger Swimming Pools & Supplies, Inc. | 55 | 4.0★ (53) | Bethalto, 6 mi away | Sat | — |
| 8 | Show Me State Pressure & Softwashing | 55 | 5.0★ (125) | Wentzville, 26 mi away | 24/7 | Emergencies |
| 9 | Farmer's Fiberglass Repair | 54 | 5.0★ (28) | Edwardsville, 9 mi away | — | — |
| 10 | Two Men and a Spa Dolly | 54 | 4.4★ (418) | Arnold, 36 mi away | — | Most reviews |
The 103 best pool builders in Upper Alton, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Maryland Heights, 21 mi away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.6★ from 385 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Maryland Heights, 20 mi away
57/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 264 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Granite City, 14 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.4★ from 92 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in St. Louis, 28 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.5★ from 227 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 27 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 49 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethalto, 6 mi away
55/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.0★ from 53 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wentzville, 26 mi away
55/100CR ScoreRanked #8 because of its Google rating and review volume: 5.0★ from 125 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edwardsville, 9 mi away
54/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arnold, 36 mi away
54/100CR ScoreRanked #10 because of its Google rating and review volume: 4.4★ from 418 Google reviews, the most in Upper Alton.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Granite City, 12 mi away
54/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in O'Fallon, 23 mi away
53/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.5★ 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 O'Fallon, 26 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 on 8 of 10 factors; credentials and recency not yet collected.
#14 Pro Pool Inc
Based in Bridgeton, 18 mi away
53/100CR ScoreRanked #14 because of its Google rating and trade focus: 3.6★ from 36 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 27 mi away
53/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.5★ from 108 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kirkwood, 26 mi away
53/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.5★ 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 St. Louis, 27 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.0★ from 102 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Alton, 8 mi away
53/100CR ScoreRanked #18 because of its Google rating and review volume: 5.0★ from 39 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 24 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.1★ from 60 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Charles, 23 mi away
53/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.2★ from 126 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chesterfield, 27 mi away
53/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 20 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 on 8 of 10 factors; credentials and recency not yet collected.
Based in O'Fallon, 26 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.0★ from 73 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Alton, 5 mi away
52/100CR ScoreRanked #24 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.
#25 Max-Q Services
Based in Florissant, 14 mi away
52/100CR ScoreRanked #25 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.
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 103 ranked pool builders here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Paradise Pools | 52 | 4.2★ (31) | 24 mi |
| 27 | Schilli Plastering Co. | 52 | 4.6★ (32) | 19 mi |
| 28 | Midwest Pool & Liner | 52 | 2.6★ (5) | 1 mi |
| 29 | Excel landscaping | 52 | 5.0★ (65) | 23 mi |
| 30 | Precision Liner Solutions | 52 | 5.0★ (11) | 19 mi |
| 31 | Pool Cover Depot | 52 | 5.0★ (20) | 20 mi |
| 32 | Oasis Pools | 52 | 4.5★ (64) | 6 mi |
| 33 | Pool Specialists Inc | 52 | 4.4★ (28) | 16 mi |
| 34 | J.C. Pool & Home LLC | 52 | 4.2★ (5) | 19 mi |
| 35 | Icon Outdoors | 52 | 5.0★ (16) | 16 mi |
| 36 | Aquadoc | 51 | 3.4★ (7) | 19 mi |
| 37 | Quiet Village Landscaping | 51 | 4.7★ (259) | 20 mi |
| 38 | One Leg Up Pool Services | 51 | 5.0★ (9) | 32 mi |
| 39 | Leslie's Pool Supplies | 51 | 3.9★ (59) | 29 mi |
| 40 | ELEVATEDesign | 51 | 5.0★ (16) | 12 mi |
| 41 | T. Chaney Pool Services | 51 | 2.9★ (22) | 23 mi |
| 42 | Schneider Pool and Spa | 51 | 4.1★ (14) | 21 mi |
| 43 | Thompson Custom LLC | 51 | 4.7★ (38) | 32 mi |
| 44 | Ryan Ballheimer Landscape Design | 51 | 5.0★ (40) | 22 mi |
| 45 | Vickscapes Pools & more | 51 | 5.0★ (14) | 33 mi |
| 46 | Bi-State Pool & Spa | 51 | 4.2★ (69) | 31 mi |
| 47 | Trinity Pools StL | 50 | 5.0★ (9) | 27 mi |
| 48 | Greenscape Pools | 50 | 5.0★ (6) | 10 mi |
| 49 | Elevate Pools | 50 | 4.5★ (42) | 33 mi |
| 50 | Wave Scapes LLC | 50 | 3.7★ (6) | 27 mi |
Also serving Upper Alton
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 |
|---|---|---|
| Above Ground Pools & Service | In Upper Alton | |
| American Pool Inc. | 3.0★ (2) | 26 mi |
| Arrow Fencing Inc | 5.0★ (7) | In Upper Alton |
| Caribbean Clear Inc | 3.0★ (2) | 25 mi |
| Champion Pools | 5.0★ (2) | 38 mi |
| Don's Pool Services | 4.0★ (2) | 22 mi |
| Earthworks Excavation LLC | 5.0★ (2) | In Upper Alton |
| Edmiston Elite Pools | 5.0★ (2) | 36 mi |
| Elite Pools Inc | 3.0★ (2) | 19 mi |
| Imber Pool & Outdoor - St Louis | 5.0★ (1) | 21 mi |
| Meramec Pools & Outdoors | 5.0★ (2) | 21 mi |
| Missouri Constructors | 3.0★ (2) | 32 mi |
| Odyssey Pool & Spa | 3.0★ (2) | 16 mi |
| Pool Care Solutions llc | 5.0★ (2) | 19 mi |
| Premier Pools, Inc. | 5.0★ (1) | 16 mi |
| Sparks Pools & Services | In Upper Alton | |
| Squire's Plastering Co | 1.0★ (2) | 29 mi |
| St. Louis Pool Installers | 5.0★ (2) | 19 mi |
| Waters Edge Pools, LLC | 5.0★ (2) | 30 mi |
| Wilson's Pools Plus Inc | 3.0★ (2) | 27 mi |
How we ranked Upper Alton pool builders
We scored 103 Upper Alton 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 Upper Alton 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 Upper Alton: frequently asked questions
Who is the best pool builder in Upper Alton?
By CR Score, the highest-ranked pool builder in Upper Alton, IL is Backyard Dreams with a CR Score of 58/100. It has 4.4★ from 75 Google reviews. It is open Saturdays until 1 PM. R & S Pool & Spa (#2) and Florida Pool & Spa (#3) follow. We ranked 103 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Upper Alton?
ContractorsRanked ranks 103 pool builders serving Upper Alton, IL. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which pool builders in Upper Alton are open 24/7?
5 ranked pool builders in Upper Alton post 24/7 hours. The highest-ranked are Show Me State Pressure & Softwashing (#8), McClure-Davison Pools (#12) and Liquid Assets Pools (#16). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pool builders in Upper Alton work on weekends?
43 of 103 ranked pool builders post Saturday hours and 16 post Sunday hours. The highest-ranked open Saturdays are Backyard Dreams (#1), Prestige Pools & Spas (#5) and Reflections Pool Services (#6). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Upper Alton pool builders have?
The median Google rating among 103 rated pool builders in Upper Alton is 4.4★, with a median of 17 reviews. Two Men and a Spa Dolly has the most, 418 reviews, and ranks #10. 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 Upper Alton count in this ranking?
Yes, if they are within 40 mi of the Upper Alton 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 Upper Alton
- November 2026: CR Scores recalculated for 103 pool builders serving Upper Alton.
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