64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.7★ from 1,253 Google reviews, listed on Google as “Plumber”.
- 4.7★ from 1,253 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 812 Midpoint Dr, O'Fallon, MO 63366
Best Plumbers in O'Fallon, MO (2026)
213 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in O'Fallon: Precision Plumbing Solutions, CR Score 64/100; 4.7★ from 1,253 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Roto-Rooter Plumbing & Water Cleanup, posts 24/7 hours; ranked #2 of 213.
- 17
Most-reviewed: Academy Air Heating, Cooling, Plumbing and Electric, 6,727 Google reviews at 4.8★, the most of 213 ranked; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
213 O'Fallon plumbers are ranked here by CR Score, from ten published factors. 57 are open 24/7, 117 open Saturdays and 82 open Sundays, based on posted hours. The median Google rating is 4.8★ across 213 rated businesses.
Top 10 plumbers in O'Fallon at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Precision Plumbing Solutions | 64 | 4.7★ (1,253) | O'Fallon | 24/7 | Overall |
| 2 | Roto-Rooter Plumbing & Water Cleanup | 64 | 4.9★ (1,838) | Wentzville, 8 mi away | 24/7 | Emergencies |
| 3 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.9★ (1,738) | Saint Charles, 11 mi away | 24/7 | — |
| 4 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.9★ (2,557) | Chesterfield, 13 mi away | 24/7 | — |
| 5 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.8★ (4,983) | Hazelwood, 16 mi away | 24/7 | — |
| 6 | Able Rooter Plumbing & Drain Cleaning St. Louis | 62 | 5.0★ (1,008) | East Saint Louis, 16 mi away | 24/7 | — |
| 7 | Hoffmann Brothers | 61 | 4.8★ (107) | O'Fallon | 24/7 | — |
| 8 | Roto-Rooter Plumbing & Water Cleanup | 61 | 4.9★ (1,474) | Ballwin, 16 mi away | 24/7 | — |
| 9 | Mr. Rooter Plumbing of St. Charles | 61 | 4.8★ (356) | Saint Peters, 6 mi away | 24/7 | — |
| 10 | Hosack Plumbing, Heating & Cooling | 61 | 5.0★ (696) | O'Fallon | 24/7 | — |
The 213 best plumbers in O'Fallon, 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 Wentzville, 8 mi away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 1,838 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,838 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10 E Pearce Blvd, Wentzville, MO 63385
Based in Saint Charles, 11 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 1,738 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,738 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3715 Mueller Rd Ste A, St Charles, MO 63301
Based in Chesterfield, 13 mi away
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 2,557 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 2,557 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13990 Olive Blvd 203 E, Chesterfield, MO 63017
Based in Hazelwood, 16 mi away
63/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 4,983 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 4,983 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4806 Trade Access Blvd Ste 900, Hazelwood, MO 63042
Based in East Saint Louis, 16 mi away
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 1,008 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 1,008 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in O'Fallon
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 107 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 107 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2046 Queens Brooke Blvd #240, St Peters, MO 63376
Based in Ballwin, 16 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 1,474 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,474 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 16083 Manchester Rd, Ballwin, MO 63011
Based in Saint Peters, 6 mi away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 356 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 356 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 50 Triad South Dr Ste A, St Peters, MO 63304
Based in O'Fallon
61/100CR ScoreRanked #10 because of its Google rating and review volume: 5.0★ from 696 Google reviews.
- 5.0★ from 696 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 110 W Pitman St, O'Fallon, MO 63366
Based in Saint Peters, 7 mi away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 157 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 157 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4011 N St Peters Pkwy #101, St Peters, MO 63304
Based in Saint Peters, 5 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 186 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 186 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
#13 Beis Plumbing
Based in Valley Park, 21 mi away
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 1,790 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 1,790 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 280 Vance Rd, Valley Park, MO 63088
Based in O'Fallon
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 288 Mid Rivers Center, St Peters, MO 63376
Based in Ellisville, 17 mi away
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 421 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 421 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15620 Manchester Rd # 26, Ellisville, MO 63011
Based in Ballwin, 24 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 2,141 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 2,141 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1564 Fencorp Dr, Fenton, MO 63026
Based in Hazelwood, 16 mi away
59/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 6,727 Google reviews, the most in O'Fallon.
- 4.8★ from 6,727 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4848 Park 370 Blvd Suite F, Hazelwood, MO 63042
Based in Saint Charles, 12 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 169 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 169 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 500 Boone's Lick Rd Ste C Upper, St Charles, MO 63301
Based in O'Fallon
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Saint Peters, 7 mi away
59/100CR ScoreRanked #20 because of its Google rating and review volume: 4.8★ from 1,238 Google reviews.
- 4.8★ from 1,238 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1237 Jungermann Rd, St Peters, MO 63376
Based in Eureka, 21 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 423 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 423 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 300 W 4th St Ste B, Eureka, MO 63025
Based in Saint Peters, 4 mi away
59/100CR ScoreRanked #22 because of its Google rating and review volume: 4.8★ from 6,200 Google reviews.
- 4.8★ from 6,200 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–5 PM · Sun closed
- Address
- 325 Mid Rivers Mall Dr, St Peters, MO 63376
Based in O'Fallon
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 452 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 452 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
#24 Bono Plumbing
Based in O'Fallon
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 612 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 612 Google reviews
- Hours
- Mon–Fri 7:30 AM–4:30 PM · Sat–Sun closed
- Address
- 63 Progress Ct, Moscow Mills, MO 63362
Based in O'Fallon
59/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 58 Algana Ct, St Peters, MO 63376
Plumbers 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 213 ranked plumbers here; the rest are on their profiles.
Also serving O'Fallon
20 more plumbers within 25 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 |
|---|---|---|
| AA Quick Plumbing And Sewer | 4.0★ (177) | 17 mi |
| ABC Plumbing & Drain Services LLC | 4.2★ (21) | 13 mi |
| Braco Electrical & Contracting | 4.9★ (299) | In O'Fallon |
| C E Bollmeier Co Inc | 3.9★ (7) | 13 mi |
| Diesel Plumbing and Heating and Cooling, LLC | 4.8★ (8) | 22 mi |
| DNS Plumbing and Drain | 3.9★ (36) | 21 mi |
| Family Tree Homes LLC | In O'Fallon | |
| Go Time Construction LLC | In O'Fallon | |
| Hiduk's Handyman Services | 5.0★ (1) | In O'Fallon |
| Hoff Heating & AC | 4.9★ (1,490) | In O'Fallon |
| Holder Plumbing | In O'Fallon | |
| Legacy Plumbing | 5.0★ (1) | In O'Fallon |
| Merkel Mechanical Services | In O'Fallon | |
| Mid America Drain Services | 4.4★ (36) | 22 mi |
| Reliable Heating & Cooling Inc. | 4.8★ (112) | In O'Fallon |
| Rippelmeyer Services Inc. | In O'Fallon | |
| Schraer Heating & Air Conditioning | 4.8★ (22) | In O'Fallon |
| Streets of Caledonia by Lombardo Homes | In O'Fallon | |
| Swiss, LLC | 4.9★ (924) | In O'Fallon |
| Zoom Drain | 4.6★ (47) | 23 mi |
How much do plumbers cost in O'Fallon?
National price ranges in USD, not adjusted for O'Fallon. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | $882 | $1,348 | $1,826 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
How we ranked O'Fallon plumbers
We scored 213 O'Fallon plumbers 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 October 22, 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 O'Fallon 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 |
Plumbers in O'Fallon: frequently asked questions
Who is the best plumber in O'Fallon?
By CR Score, the highest-ranked plumber in O'Fallon, MO is Precision Plumbing Solutions with a CR Score of 64/100. It has 4.7★ from 1,253 Google reviews. It is open 24/7. Roto-Rooter Plumbing & Water Cleanup (#2) and Roto-Rooter Plumbing & Water Cleanup (#3) follow. We ranked 213 plumbers on ten factors, last updated October 22, 2026.
How many plumbers are there in O'Fallon?
ContractorsRanked ranks 213 plumbers serving O'Fallon, MO. 12 of them are based in O'Fallon; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in O'Fallon are open 24/7?
57 ranked plumbers in O'Fallon post 24/7 hours. The highest-ranked are Precision Plumbing Solutions (#1), Roto-Rooter Plumbing & Water Cleanup (#2) and Roto-Rooter Plumbing & Water Cleanup (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in O'Fallon work on weekends?
117 of 213 ranked plumbers post Saturday hours and 82 post Sunday hours. The highest-ranked open Saturdays are Precision Plumbing Solutions (#1), Roto-Rooter Plumbing & Water Cleanup (#2) and Roto-Rooter Plumbing & Water Cleanup (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does water heater replacement cost in O'Fallon?
Water heater replacement typically costs $882 to $1,826, with $1,348 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for O'Fallon. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do O'Fallon plumbers have?
The median Google rating among 213 rated plumbers in O'Fallon is 4.8★, with a median of 29 reviews. Academy Air Heating, Cooling, Plumbing and Electric has the most, 6,727 reviews, and ranks #17. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank plumbers?
Each plumber 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 plumbers outside O'Fallon count in this ranking?
Yes, if they are within 25 mi of the O'Fallon city center, our service radius for plumbers. 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.
Update log for O'Fallon
- October 2026: CR Scores recalculated for 213 plumbers serving O'Fallon.
More plumbers and O'Fallon pages
Plumbers near O'Fallon
- Plumbers in Dardenne Prairie, MO224 ranked
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- Plumbers in Saint Charles, MO316 ranked
- Plumbers in Chesterfield, MO307 ranked
- Plumbers in Bridgeton, MO339 ranked
- Plumbers in Wildwood, MO303 ranked
- Plumbers in Maryland Heights, MO332 ranked
Other trades in O'Fallon
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- Kitchen remodelers in O'Fallon248 ranked
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- Window installers in O'Fallon183 ranked
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- Solar installers in O'Fallon50 ranked
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