63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Best Pool Builders in Sterling, IL (2026)
9 pool builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Sterling: Poolside Pools & Spas, CR Score 63/100; 4.9★ from 35 Google reviews.
- 3
Most-reviewed: H2O Express - Bulk Water Delivery, 77 Google reviews at 4.9★, the most of 9 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 Sterling pool builders are ranked here by CR Score, from ten published factors. 4 open Saturdays, based on posted hours. The median Google rating is 4.9★ across 9 rated businesses.
Top 9 pool builders in Sterling at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Poolside Pools & Spas | 63 | 4.9★ (35) | Sterling | — | Overall |
| 2 | Celletti's Sportland | 60 | 4.9★ (26) | Rock Falls, 1 mi away | Sat | — |
| 3 | H2O Express - Bulk Water Delivery | 60 | 4.9★ (77) | Freeport, 34 mi away | — | Most reviews |
| 4 | Backyard Oasis | 55 | 4.6★ (16) | Clinton, 28 mi away | — | — |
| 5 | Kewanee Pool & Spa | 54 | 4.9★ (27) | Kewanee, 40 mi away | Sat | — |
| 6 | JnT Pool Service | 54 | 4.3★ (26) | Rockford, 38 mi away | Sat | — |
| 7 | A & a Pools | 52 | 3.8★ (12) | Streator, 31 mi away | Sat | — |
| 8 | SwingnSplash | 51 | 3.9★ (36) | Freeport, 32 mi away | — | — |
| 9 | Sondgeroth Pool Construction LLC | 50 | 5.0★ (6) | Rochelle, 30 mi away | — | — |
The 9 best pool builders in Sterling, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Rock Falls, 1 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 26 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Freeport, 34 mi away
60/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 77 Google reviews, the most in Sterling.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Clinton, 28 mi away
55/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.6★ from 16 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Kewanee, 40 mi away
54/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockford, 38 mi away
54/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.3★ from 26 Google reviews, listed on Google as “Swimming pool repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#7 A & a Pools
Based in Streator, 31 mi away
52/100CR ScoreRanked #7 because of its Google rating and trade focus: 3.8★ from 12 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#8 SwingnSplash
Based in Freeport, 32 mi away
51/100CR ScoreRanked #8 because of its Google rating and trade focus: 3.9★ 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 Rochelle, 30 mi away
50/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
How we ranked Sterling pool builders
We scored 9 Sterling 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 Sterling 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 Sterling: frequently asked questions
Who is the best pool builder in Sterling?
By CR Score, the highest-ranked pool builder in Sterling, IL is Poolside Pools & Spas with a CR Score of 63/100. It has 4.9★ from 35 Google reviews. Celletti's Sportland (#2) and H2O Express - Bulk Water Delivery (#3) follow. We ranked 9 pool builders on ten factors, last updated November 3, 2026.
How many pool builders are there in Sterling?
ContractorsRanked ranks 9 pool builders serving Sterling, IL. 1 of them is based in Sterling; the rest serve it from nearby towns. Counts are as of November 2026.
Which pool builders in Sterling work on weekends?
4 of 9 ranked pool builders post Saturday hours. The highest-ranked open Saturdays are Celletti's Sportland (#2), Kewanee Pool & Spa (#5) and JnT Pool Service (#6). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Sterling pool builders have?
The median Google rating among 9 rated pool builders in Sterling is 4.9★, with a median of 26 reviews. H2O Express - Bulk Water Delivery has the most, 77 reviews, and ranks #3. 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 Sterling count in this ranking?
Yes, if they are within 40 mi of the Sterling 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 Sterling
- November 2026: CR Scores recalculated for 9 pool builders serving Sterling.
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