62/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pool Builders in Union, SC (2026)
72 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Union: Upstate Pool Repair, CR Score 62/100; 5.0★ from 118 Google reviews; open 7 days a week.
- 8
Best for emergencies (open 24/7): ASP - America's Swimming Pool Company of Rock Hill, posts 24/7 hours; ranked #8 of 72.
- 4
Most-reviewed: Genco Pools & Spas, 171 Google reviews at 4.7★, the most of 72 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
72 Union pool builders are ranked here by CR Score, from ten published factors. 2 are open 24/7, 27 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.7★ across 72 rated businesses.
Top 10 pool builders in Union at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Upstate Pool Repair | 62 | 5.0★ (118) | Spartanburg, 25 mi away | Sat · Sun · Evenings | Overall |
| 2 | Veterans Landscaping & Construction | 60 | 4.7★ (157) | Spartanburg, 20 mi away | Sat | — |
| 3 | Big Splash Pool Co | 59 | 4.7★ (77) | Spartanburg, 23 mi away | — | — |
| 4 | Genco Pools & Spas | 58 | 4.7★ (171) | Simpsonville, 37 mi away | Sat | Most reviews |
| 5 | Poolwerx Greenville | 57 | 4.7★ (157) | Greer, 40 mi away | Sat | — |
| 6 | Leslie's Pool Supplies | 57 | 4.4★ (104) | Spartanburg, 26 mi away | Sat | — |
| 7 | Outside In Leisure Products | 56 | 4.5★ (140) | Greer, 36 mi away | Sat | — |
| 8 | ASP - America's Swimming Pool Company of Rock Hill | 56 | 4.3★ (34) | Rock Hill, 36 mi away | 24/7 | Emergencies |
| 9 | Wesley's Water World | 56 | 4.6★ (84) | Greer, 36 mi away | Sat | — |
| 10 | Custom Pools of Gastonia, Inc. | 55 | 4.8★ (18) | Gastonia, 39 mi away | 24/7 | — |
The 72 best pool builders in Union, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Spartanburg, 20 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 157 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Spartanburg, 23 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 77 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Simpsonville, 37 mi away
58/100CR ScoreRanked #4 because of its Google rating and review volume: 4.7★ from 171 Google reviews, the most in Union.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greer, 40 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 157 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Spartanburg, 26 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.4★ from 104 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greer, 36 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.5★ from 140 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rock Hill, 36 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.3★ from 34 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greer, 36 mi away
56/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 84 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gastonia, 39 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 37 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 101 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#12 The Pool House
Based in Greer, 36 mi away
55/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kings Mountain, 40 mi away
55/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 57 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Simpsonville, 35 mi away
54/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.2★ from 101 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#15 Your Pool Boyz
Based in Spartanburg, 24 mi away
54/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Simpsonville, 36 mi away
53/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.3★ from 46 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#17 Water Solutions
Based in Spartanburg, 28 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 32 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 38 mi away
53/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 40 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rock Hill, 37 mi away
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 19 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#21 Avodah Pools
Based in Lincoln, 36 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#22 K M Pool
Based in Kings Mountain, 40 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 40 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#23 Cromer Pools
Based in Newberry, 30 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.3★ from 18 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mauldin, 37 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sans Souci, 33 mi away
52/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ 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 72 ranked pool builders here; the rest are on their profiles.
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 |
|---|---|---|
| American Patriot Pools | 36 mi | |
| Asp Pool & Spa Co | 39 mi | |
| Backyard Pools and Grading | 33 mi | |
| Cobblestone Cove Pools | 36 mi | |
| DeadEye Pools | 5.0★ (2) | 32 mi |
| Deep Blue Pools | 38 mi | |
| Genco of Simpsonville Inc | 36 mi | |
| Independence Pools & Exteriors | 36 mi | |
| Kelly's Pool Works | 32 mi | |
| Liquid Dreams | 37 mi | |
| Liquid Dreams LLC | 26 mi | |
| Lone Star Pool & Construction | 29 mi | |
| Patriot Pool Covers | 5.0★ (1) | 30 mi |
| Perfect pools llc | 22 mi | |
| Pool Life, LLC | 39 mi | |
| Pool Solutions | 3.5★ (2) | 35 mi |
| Rock Hill Pools | 37 mi | |
| Rutledge Pool Services | 37 mi | |
| Sanchez Concrete Experts | 1.0★ (1) | 31 mi |
| Shelby Pools | 37 mi |
How we ranked Union pool builders
We scored 72 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, SC is Upstate Pool Repair with a CR Score of 62/100. It has 5.0★ from 118 Google reviews. It is open 7 days a week. Veterans Landscaping & Construction (#2) and Big Splash Pool Co (#3) follow. We ranked 72 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Union?
ContractorsRanked ranks 72 pool builders serving Union, SC. 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?
2 ranked pool builders in Union post 24/7 hours. The highest-ranked are ASP - America's Swimming Pool Company of Rock Hill (#8) and Custom Pools of Gastonia, Inc. (#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?
27 of 72 ranked pool builders post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are Upstate Pool Repair (#1), Veterans Landscaping & Construction (#2) and Genco Pools & Spas (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Union pool builders have?
The median Google rating among 72 rated pool builders in Union is 4.7★, with a median of 17 reviews. Genco Pools & Spas has the most, 171 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 72 pool builders serving Union.
- November 2026: 2 duplicate listings merged.
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