Roof Replacement O'Fallon, MO

In O'Fallon, MO, we replace aging roofs with storm-ready assemblies, precision flashing, and balanced airflow that keep interiors cool and dry.

Local readiness

Permits, HOA sign-offs, and inspections are handled for youmaterials show up sequenced so crews keep momentum.

From Class 4 shingles to reflective metal and flat-roof membranes, we seal every penetration and balance airflow for longevity.

Who we are

We are site-led crews who photograph every step, from deck repairs to final ridge caps, so O'Fallon, MO homeowners see the craft.

We stage quietly, manage debris, and leave driveways and beds clean, respecting your O'Fallon, MO neighborhood.

Roof replacement services

Complete tear-offs

Full tear-offs with deck repair, high-temp underlayment, and code-ready flashing that stands up to coastal wind.

Metal systems

Metal roofs with concealed fasteners, coated panels, and crisp trims that shed wind-driven rain.

Flat & low-slope

TPO and PVC membranes with tapered insulation, edge metal, and sealed penetrations for durable flats.

Storm response

Emergency dries, tarps, moisture checks, and insurer-friendly documentation that speeds approvals.

Why choose CityRoofingContractor

Code-first

Fastener schedules, starter strips, drip edges, and ventilation aligned to the toughest O'Fallon, MO requirements.

Daily clarity

Consistent updates and a single point of contact remove surprises.

Premium warranties

We build to spec so enhanced warranties apply.

Clean exit

Magnet sweeps, protected landscaping, and organized debris removal honor your property.

Testimonials

Inspector impressed.

Nail patterns and flashing were textbook; permit closed on the first visit.

Clean job.

Debris contained, magnets everywhere, and respectful crews.

Bone dry.

High winds came and the new roof stayed quiet and solid.

In-depth: city-grade roof replacement for O'Fallon, MO

In O'Fallon, MO, microclimates swing between salty air and inland heat. We start with a forensic inspectionphotographing decking, skylights, chimneys, and prior patchesso scope, pricing, and timelines stay clear.

Material choices are collaborative: Class 4 impact shingles for hail corridors, standing-seam metal where wind uplift dominates, and TPO/PVC membranes with tapered insulation to eliminate ponding.

Underlayment matters: synthetic base layers plus ice-and-water shields at eaves, valleys, and penetrations create redundancy against driven rain.

Ventilation is calculated, not guessed: we balance intake and exhaust, add baffled vents, and protect insulation so attics stay cooler and shingles live longer.

We exceed minimums with ring-shank nails, tight patterns, and sealed starters to lock shingles down.

Flashing is rebuilt newstep, counter, apron, and pipe bootsso water cannot sneak in around walls or penetrations.

We upgrade skylight perimeters with self-adhered membranes and diverters to manage flow.

Chimneys are reworked with reglet or counter-flashing, proper mortar, and saddle crickets to steer water away from brick and siding.

Penetrations are sealed with high-temp boots and mastic where needed, then inspected before cover layers go down.

We replace weak decking, secure it properly, and ensure planes stay true for crisp shingle lines.

Hemmed drip edges and sealed transitions keep water moving into gutters, not behind them.

Low-slope tie-ins receive special attention with granule-surfaced membranes or metal transitions that blend aesthetics with waterproofing.

Your property stays protected with planned staging and end-of-day cleanups.

Communication cadence is predictable: morning plan, midday photos, and evening summary with next steps and weather calls.

Proactive replacement beats paying for water damagefinancing options keep projects moving.

Post-install validation proves the roof is sealed and ventilation is working.

Your closeout binder keeps insurers and future buyers confident in the roof.

Energy efficiency improves when reflective surfaces, sealed penetrations, and tuned ventilation work together, lowering attic temps and bills.

We keep tarp crews on standby during storm seasons so projects stay protected if weather shifts suddenly.

Warranty support is real: we register your system and respond quickly if issues ariseno runaround.

Choose CityRoofingContractor for roofs that beat O'Fallon, MO weather while looking crisp from the street.

Get ahead of the forecast by booking today.

Invest in peace of mind with a system crafted for your climate.

Reach out and we will get it scheduled.

O'Fallon (/oʊˈfælən/ oh-FAL-ən) is a city in St. Charles County, Missouri, United States. It is part of the St. Louis metropolitan statistical area, located along Interstates 64 and 70 between Lake St. Louis and St. Peters. As of the 2020 census, O'Fallon had a population of 91,316, making it the largest suburb of St. Louis, as well as the largest municipality in St. Charles County and the seventh-largest in Missouri. O'Fallon's namesake in St. Clair County, Illinois, is also part of the St. Louis region. The two cities are one of the few pairs of same-named municipalities to be part of the same metro area.

Zip Codes in O'Fallon, MO that we also serve: 63367 63366 63368

Cities Close To O'Fallon, MO That We Also Serve


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White-Williams Roof Coating Services

  • Business Address: 259 Todd Fords MO 63866
  • Phone No: 17097167915
  • Business Rating: 5
  • Business Review: 452
  • Business Site: https://gould.com/
  • Business Map URL: redirect link
  • Great communication throughout the process. They kept me informed and showed up exactly when they said they would.
  • I couldn’t be happier with the service! My roof was repaired quickly, and the team was very polite and knowledgeable.
  • The crew did an excellent job repairing my roof. They were careful, thorough, and very professional.

Fernandez, Patrick and Rhodes Hospital Roofing Services

  • Business Address: 1543 Robert Estate MO 63639
  • Phone No: 17096997535
  • Business Rating: 3
  • Business Review: 570
  • Business Site: http://howard.biz/
  • Business Map URL: redirect link
  • Fast and efficient! The crew fixed the roof with no issues and made sure everything was secure. Highly recommend.
  • The crew did an excellent job repairing my roof. They were careful, thorough, and very professional.
  • I couldn’t be happier with the service! My roof was repaired quickly, and the team was very polite and knowledgeable.

Craig and Sons Insurance Roof Claims Assistance

  • Business Address: 461 Rachel Stream MO 64827
  • Phone No: 17025037159
  • Business Rating: 5
  • Business Review: 382
  • Business Site: https://long.com/
  • Business Map URL: redirect link
  • Very happy with the roofing service! The crew was punctual, professional, and did an outstanding job.
  • Excellent roofing service! They repaired my roof quickly and did a thorough, high-quality job. Very professional and reliable team.
  • I couldn’t be happier with the service! My roof was repaired quickly, and the team was very polite and knowledgeable.

Payne, Brown and Allen Hospital Roofing Services

  • Business Address: 21479 Leslie Stravenue Suite 120 MO 65016
  • Phone No: 17057388228
  • Business Rating: 4
  • Business Review: 482
  • Business Site: https://hobbs.com/
  • Business Map URL: redirect link
  • Reliable and courteous service. They handled a major roofing issue with ease and made the whole process stress-free.
  • Outstanding service! They arrived within the promised time frame and completed the roofing work perfectly.
  • Superb service! After discovering a roof leak, they fixed it fast and made my home safe again.

Medina-Anthony EPDM Roofing Services

  • Business Address: 3710 Ashley Walk Suite 201 MO 63712
  • Phone No: 17065499230
  • Business Rating: 4
  • Business Review: 485
  • Business Site: http://mcdaniel-shah.net/
  • Business Map URL: redirect link
  • Highly recommend this roofing contractor! The crew was professional, friendly, and very thorough.
  • Top-notch roofing service! They handled storm damage with no problem and left everything clean and secure.
  • I was really impressed by their quick response time. The roof repair was done efficiently, and the results were excellent.
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