O'Fallon, MO

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Discover top-rated home service professionals in O'Fallon, Missouri. Browse 200 verified contractors for roofing, HVAC, plumbing, and more.

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O'Fallon, MO

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Top Contractors in O'Fallon, MO

Showing 1-20 of 200 contractors

Property Services Industries (PSI)

Property Services Industries (PSI)

1349 Charlestown Industrial Dr, St Charles, MO 63303

5(6 reviews)
Concrete
Hours
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DL Polyjack

DL Polyjack

O'Fallon, MO

5(29 reviews)

"Fast communication, scheduled quickly, and great quality work."

Foundation RepairConcrete
Hours
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Freedom Home Improvements

Freedom Home Improvements

O'Fallon, MO

5(16 reviews)

"They were professional, quick, and the quality is fantastic."

Decks & Patios
Hours
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Epic Concrete

Epic Concrete

85 Woodmark Manor Dr, Winfield, MO 63389

5(9 reviews)

"We wholeheartedly recommend Epic Concrete for your concrete needs."

Concrete
Hours
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Four Boys Construction

Four Boys Construction

O'Fallon, MO

5(5 reviews)

"They did a great job, looked great and came in cheaper than everyone else."

ConcreteFoundation RepairRoofing
Hours
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Redbird Concrete

Redbird Concrete

O'Fallon, MO

5(8 reviews)

"Showed up on time and completed job as promised."

Concrete
Hours
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M&L Exterior and interior design

M&L Exterior and interior design

2013 Heather Dr, O'Fallon, MO 63366

5(3 reviews)

"They transformed my old carpet into beautiful luxury LVP flooring."

FlooringTile InstallerBathroom RemodelGeneral Contracting+2 more
Hours
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Durbin Garage Doors llc

Durbin Garage Doors llc

O'Fallon, MO

5(34 reviews)

"And I recommend this company to anyone I know."

Garage Doors
Hours
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Top Decks LLC

Top Decks LLC

O'Fallon, MO

5(28 reviews)

"Quality of materials work, price and execution exceeded expectations."

Decks & PatiosGeneral Contracting
Hours
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Superior Sealing and Top Coating

Superior Sealing and Top Coating

611 Homefield Glen Ct, O'Fallon, MO 63366

5(4 reviews)

"awesome price and very professional."

PaintingConcreteGeneral Contracting
Hours
Landscapes β€˜n More

Landscapes β€˜n More

O'Fallon, MO

5(38 reviews)

"They listened, worked hard, and completed everything we needed quickly."

LandscapingDecks & PatiosGeneral ContractingFencing
Hours
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O'Fallon Grading & Excavation

O'Fallon Grading & Excavation

5 Oakwood Ct, O'Fallon, MO 63366

5(1 reviews)

"AWSOME SERVICE"

ConcreteGeneral ContractingTree ServicesDemolition
Hours
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Vista Landscapes

Vista Landscapes

O'Fallon, MO

5(19 reviews)

"Luke did an amazing job on our landscaping, edging and drainage issues."

Landscaping
Hours
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Liston Painting / Kitchen Cabinets

Liston Painting / Kitchen Cabinets

E Weldon Spring Heights Dr, St Charles, MO 63304

5(6 reviews)

"High quality work in record time."

Painting
Hours
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Lookup Roofing LLC

Lookup Roofing LLC

301 St Joseph Ave, O'Fallon, MO 63366

5(42 reviews)

"The work crew didΒ aΒ fabulous job with both the installation and the cleanup."

RoofingSidingGuttersKitchen Remodel+4 more
Hours
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CNO Comfort Zone Heating and Cooling

CNO Comfort Zone Heating and Cooling

O'Fallon, MO 63366

5(4 reviews)

"The best service!"

HVAC
Hours
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Wibracht Electric

Wibracht Electric

1390 Charlestown Industrial Dr, St Charles, MO 63303

5(7 reviews)

"They are professional, fair and reasonable."

Electrical
Hours
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Floored By Beau

Floored By Beau

O'Fallon, MO

5(5 reviews)

"He is skilled and takes the time to do the best job… no short-cuts!"

FlooringTile Installer
Hours
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Riley Painting LLC

Riley Painting LLC

O'Fallon, MO

5(109 reviews)

"They did a great job on the painting and were polite and personable."

PaintingDrywall
Hours
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Lawnology LLC

Lawnology LLC

O'Fallon, MO

5(25 reviews)

"Their crew works efficiently and gets the work done the right way."

Landscaping
Hours
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Top Rated Contractors 2026

O'Fallon, MO

Every contractor shown for O'Fallon, Missouri is listed with the rating and review count from its public Google Business Profile, so you can compare local professionals on the same basis. Businesses marked as claimed have confirmed their own details, which is not the same as a licence or insurance check. Confirm licensing and insurance directly, then request at least three written estimates before you hire in O'Fallon.

Frequently Asked Questions

Common questions about finding contractors in O'Fallon

Prices in O'Fallon depend on the trade, the size and complexity of the job, and the materials you choose. Small repairs often start in the low hundreds of dollars, while full replacements such as a roof, HVAC system, or kitchen can run from several thousand dollars upward. Request at least three written estimates for the same scope so you can compare local pricing fairly.

Start with the listings on this page, then confirm the licence directly with the licensing board that covers Missouri. Requirements vary by trade: some states license general contractors, while others license only electrical, plumbing, and HVAC work. Ask for the licence number and verify it yourself before signing anything.

Most listings in O'Fallon are aggregated from public business data, including the Google Business Profile rating and review count shown on each page, and are not individually inspected by us. A listing marked as claimed simply means the owner has confirmed control of the business record; it is not a licence or insurance check. Always verify licensing, insurance, and references before you hire.

Costs in Missouri depend heavily on the trade and the project. Labour rates vary by region, licensed trades such as electrical and plumbing usually cost more per hour than general labour, and emergency or after-hours work carries a premium. Statewide averages are only a starting point; get itemized quotes from local contractors for your exact scope.

Permit rules are set by the local authority that covers O'Fallon. Structural work, additions, and most electrical, plumbing, HVAC, and roofing replacements require a permit, while some cosmetic work does not. Ask who is pulling the permit and confirm it is issued in the correct name before work starts, because unpermitted work can complicate resale and insurance.

A deposit of roughly 10-30% of the contract price to cover materials is common in O'Fallon, with the balance tied to milestones in a written contract. Be cautious of anyone demanding full payment up front, large cash-only payments, or payment before the work is scheduled. A written payment schedule protects both sides.

Compare quotes on the same written scope of work, not on the bottom line alone. Check that each quote lists materials and brands, labour, permits, cleanup, and exclusions, and ask how change orders are priced. A bid that is far below the others usually means something has been left out.

A contractor contract in Missouri should state the full scope, materials, total price and payment schedule, estimated start and completion dates, the licence number, how changes will be approved and priced, the warranty, and who handles permits and cleanup. Read it before signing and keep a copy.

Timelines in O'Fallon vary widely by trade and scope, from a same-day repair to several months for a major remodel. Weather, permit queues, and material lead times all affect the schedule. Ask each contractor for a written timeline and confirm how they handle weather or inspection delays.

Read the Google review excerpts shown on each listing for patterns rather than judging only by the star average. Also check the state or provincial licensing board for complaints, ask the contractor for recent local references, and confirm they carry insurance. A single bad review matters less than a consistent theme.

Pricing in O'Fallon reflects local labour rates, cost of living, demand, and how far crews have to travel. Dense metro areas and high-cost regions usually run above the state average, while smaller markets can be below it. The only accurate comparison is like-for-like quotes from contractors who work in O'Fallon.

Document everything in writing first, including photos, dates, and the contract. Ask the contractor to fix the issue under the warranty, and if they refuse, file a complaint with the Missouri licensing board or consumer-protection office. You can also contact us so we can review the listing associated with that business.