62/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best General Contractors in O'Fallon, MO (2026)
402 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in O'Fallon: STL Mount, CR Score 62/100; 5.0★ from 211 Google reviews; open 24/7.
- 8
Best for emergencies (open 24/7): Paramount Home Renovation, posts 24/7 hours; ranked #8 of 402.
- 4
Most-reviewed: The Container Store, 412 Google reviews at 4.4★, the most of 402 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
402 O'Fallon general contractors are ranked here by CR Score, from ten published factors. 20 are open 24/7, 108 open Saturdays and 48 open Sundays, based on posted hours. The median Google rating is 4.8★ across 402 rated businesses.
Top 10 general contractors in O'Fallon at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | STL Mount | 62 | 5.0★ (211) | Fairview Heights, 19 mi away | 24/7 | Overall |
| 2 | LT's Pressure Washing LLC | 61 | 5.0★ (168) | Wentzville, 7 mi away | Sat | — |
| 3 | Richbuilt Basements | 58 | 4.9★ (28) | Saint Peters, 6 mi away | Sat · Sun | — |
| 4 | The Container Store | 58 | 4.4★ (412) | St. Louis, 23 mi away | Sat · Sun · Evenings | Most reviews |
| 5 | Closets by Design - St. Louis | 58 | 4.5★ (293) | Maryland Heights, 16 mi away | Sat | — |
| 6 | TLS Home Improvement | 58 | 4.6★ (54) | Saint Peters, 5 mi away | Sat | — |
| 7 | Irish Construction St. Louis | 57 | 4.6★ (226) | Bridgeton, 17 mi away | Sat | — |
| 8 | Paramount Home Renovation | 57 | 5.0★ (6) | Wentzville, 5 mi away | 24/7 | Emergencies |
| 9 | Meyer Contracting, LLC | 57 | 4.6★ (55) | O'Fallon | — | — |
| 10 | Top Decks LLC | 57 | 5.0★ (28) | O'Fallon | — | — |
The 402 best general contractors 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, 7 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 168 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 168 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 413 Edinger Rd, Wentzville, MO 63385
Based in Saint Peters, 6 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “General contractor”.
- 4.9★ from 28 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in St. Louis, 23 mi away
58/100CR ScoreRanked #4 because of its Google rating and review volume: 4.4★ from 412 Google reviews, the most in O'Fallon.
- 4.4★ from 412 Google reviews
- Hours
- Mon–Sat 10 AM–7 PM · Sun 11 AM–6 PM
- Address
- 1769 S Brentwood Blvd, St. Louis, MO 63144
Based in Maryland Heights, 16 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.5★ from 293 Google reviews, listed on Google as “General contractor”.
- 4.5★ from 293 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 10 AM–2 PM · Sun closed
- Address
- 149 Weldon Pkwy Suite 122, Maryland Heights, MO 63043
Based in Saint Peters, 5 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 54 Google reviews, listed on Google as “Contractor”.
- 4.6★ from 54 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–2 PM · Sun closed
Based in Bridgeton, 17 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.6★ from 226 Google reviews, listed on Google as “Construction company”.
- 4.6★ from 226 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
Based in Wentzville, 5 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in O'Fallon
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 55 Google reviews, listed on Google as “Contractor”.
- 4.6★ from 55 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 1027 Cool Springs Industrial Dr, O'Fallon, MO 63366
#10 Top Decks LLC
Based in O'Fallon
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 28 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
Based in Troy, 17 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 38 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 109 Twin Falls Dr, Troy, MO 63379
Based in Lake Saint Louis, 8 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
Based in Creve Coeur, 17 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.6★ from 27 Google reviews, listed on Google as “Contractor”.
- 4.6★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11500 Olive Blvd # 220, Creve Coeur, MO 63141
Based in O'Fallon
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 27 Google reviews
- Hours
- Mon–Tue 7:30 AM–3:30 PM · Wed 7 AM–3:30 PM · Thu–Fri 7:30 AM–3:30 PM · Sat–Sun closed
- Address
- 1609 E Terra Ln, O'Fallon, MO 63366
Based in Hazelwood, 19 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7807 Guhman Ct, Hazelwood, MO 63042
#16 Gammon Exteriors
Based in Lake Saint Louis, 6 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 40 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
Based in Saint Peters, 3 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Saint Charles, 11 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “General contractor”.
- 4.8★ from 20 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2812 Headland Dr, St Charles, MO 63301
#19 Wilco Service
Based in Saint Peters, 12 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Contractor”.
- 4.9★ from 79 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
Based in East Alton, 16 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.4★ from 19 Google reviews, listed on Google as “General contractor”.
- 4.4★ from 19 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Saint Peters, 9 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Construction company”.
- 4.9★ from 51 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 1100 Jungs Station Rd, St Peters, MO 63303
Based in Saint Peters, 14 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 34 Google reviews
- Hours
- Mon–Sat 6 AM–9 PM · Sun closed
Based in Wentzville, 6 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
Based in Troy, 17 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 98 Google reviews, listed on Google as “Contractor”.
- 4.5★ from 98 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 8 AM–3 PM · Sun closed
- Address
- 301 Thornhill Cemetery Rd, Troy, MO 63379
Based in Saint Charles, 12 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “General contractor”.
- 4.9★ from 64 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 912 S 5th St, St Charles, MO 63301
General contractors 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 402 ranked general contractors here; the rest are on their profiles.
Also serving O'Fallon
20 more general contractors 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 |
|---|---|---|
| All Trades Restoration Services | 4.8★ (16) | In O'Fallon |
| Berry Construction Roofing & Storm Repair | 4.8★ (215) | In O'Fallon |
| Best Floors & More LLC | 5.0★ (34) | In O'Fallon |
| Braco Electrical & Contracting | 4.9★ (299) | In O'Fallon |
| Capital Foam Systems | 4.8★ (69) | In O'Fallon |
| County Remodeling | 4.4★ (9) | In O'Fallon |
| Eagle Exteriors | 4.7★ (14) | In O'Fallon |
| Going Green Restoration | 4.7★ (49) | In O'Fallon |
| Hawkins Construction & Flatwork | 4.1★ (10) | In O'Fallon |
| HBP Painting Contractors | 5.0★ (165) | In O'Fallon |
| Home Shield Foundation Repair | 5.0★ (265) | In O'Fallon |
| JB Concrete and Construction | 4.2★ (25) | In O'Fallon |
| Keimar Contracting LLC | 4.9★ (32) | In O'Fallon |
| Quality Roofing & Contracting | 4.8★ (78) | In O'Fallon |
| RainTight Decks | 4.7★ (94) | In O'Fallon |
| River City Drywall and Painting | 4.6★ (71) | In O'Fallon |
| Siegler's Custom Kitchens | 4.0★ (24) | In O'Fallon |
| Stay Cool Climate Control | 5.0★ (1,068) | In O'Fallon |
| Swede's Handyman Service | 4.8★ (23) | In O'Fallon |
| Terbrock Remodeling & Construction | 4.7★ (38) | In O'Fallon |
How much do general contractors cost in O'Fallon?
Typical prices in USD, adjusted for Missouri with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Kitchen remodel | $14,300 | $26,440 | $40,770 | Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 0.98 West North Central factor (2025 Cost vs. Value Report) | October 2026 |
| Bathroom remodel | $6,840 | $12,500 | $18,160 | Per bathroom: typical range of customer-reported remodels. US national range × 1.03 West North Central factor (2025 Cost vs. Value Report) | October 2026 |
How we ranked O'Fallon general contractors
We scored 402 O'Fallon general contractors 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 |
General contractors in O'Fallon: frequently asked questions
Who is the best general contractor in O'Fallon?
By CR Score, the highest-ranked general contractor in O'Fallon, MO is STL Mount with a CR Score of 62/100. It has 5.0★ from 211 Google reviews. It is open 24/7. LT's Pressure Washing LLC (#2) and Richbuilt Basements (#3) follow. We ranked 402 general contractors on ten factors, last updated October 22, 2026.
How many general contractors are there in O'Fallon?
ContractorsRanked ranks 402 general contractors serving O'Fallon, MO. 8 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 general contractors in O'Fallon are open 24/7?
20 ranked general contractors in O'Fallon post 24/7 hours. The highest-ranked are STL Mount (#1), Paramount Home Renovation (#8) and Shorty's Renovations llc (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which general contractors in O'Fallon work on weekends?
108 of 402 ranked general contractors post Saturday hours and 48 post Sunday hours. The highest-ranked open Saturdays are STL Mount (#1), LT's Pressure Washing LLC (#2) and Richbuilt Basements (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does kitchen remodel cost in O'Fallon?
Kitchen remodel typically costs $14,300 to $40,770, with $26,440 typical (Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 0.98 West North Central factor (2025 Cost vs. Value Report)). The range is adjusted for Missouri. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do O'Fallon general contractors have?
The median Google rating among 402 rated general contractors in O'Fallon is 4.8★, with a median of 8 reviews. The Container Store has the most, 412 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank general contractors?
Each general contractor 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 general contractors outside O'Fallon count in this ranking?
Yes, if they are within 25 mi of the O'Fallon city center, our service radius for general contractors. 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 402 general contractors serving O'Fallon.
- October 2026: 4 duplicate listings merged.
More general contractors and O'Fallon pages
General contractors near O'Fallon
- General contractors in Dardenne Prairie, MO415 ranked
- General contractors in Saint Peters, MO472 ranked
- General contractors in Lake Saint Louis, MO341 ranked
- General contractors in Weldon Spring, MO490 ranked
- General contractors in Wentzville, MO255 ranked
- General contractors in Saint Charles, MO527 ranked
- General contractors in Chesterfield, MO534 ranked
- General contractors in Bridgeton, MO542 ranked
- General contractors in Wildwood, MO523 ranked
- General contractors in Maryland Heights, MO554 ranked
Other trades in O'Fallon
- Roofers in O'Fallon632 ranked
- Plumbers in O'Fallon213 ranked
- Electricians in O'Fallon173 ranked
- HVAC contractors in O'Fallon293 ranked
- Painters in O'Fallon124 ranked
- Landscapers in O'Fallon158 ranked
- Handymen in O'Fallon64 ranked
- Kitchen remodelers in O'Fallon248 ranked
- Bathroom remodelers in O'Fallon248 ranked
- Flooring contractors in O'Fallon185 ranked
- Tile installers in O'Fallon39 ranked
- Drywall contractors in O'Fallon17 ranked
- Concrete contractors in O'Fallon185 ranked
- Fence contractors in O'Fallon76 ranked
- Deck builders in O'Fallon146 ranked
- Siding contractors in O'Fallon268 ranked
- Window installers in O'Fallon183 ranked
- Gutter installers in O'Fallon153 ranked
- Insulation contractors in O'Fallon40 ranked
- Solar installers in O'Fallon50 ranked
- Garage door repair companies in O'Fallon75 ranked
- Foundation repair companies in O'Fallon73 ranked
- Tree services in O'Fallon197 ranked
- Masonry contractors in O'Fallon96 ranked
- Water damage restoration companies in O'Fallon228 ranked
- Home builders in O'Fallon231 ranked
- Demolition contractors in O'Fallon39 ranked
- All contractors in O'Fallon