Great conditions for a free roof inspection today.
StCharlesRoof.com replaces roofs across St. Charles County, Missouri with full tear-off installation by CertainTeed Master Craftsman crews. Most county roof replacements cost $9,000 to $25,000, and every job starts with a free inspection, a firm written price before any work begins, and a 5-year transferable workmanship warranty in writing.
A roof replacement in St. Charles County costs $9,000 to $25,000 for most homes. Single-story homes typically run $9,000 to $16,000, two-story homes $14,000 to $24,000, and steep or complex roofs $20,000 to $38,000. Standing-seam metal runs $14,000 to $48,000. Hail-damaged roofs are often covered by insurance minus the deductible.
| Factor | What it does to price |
|---|---|
| Roof size and stories | The biggest driver. More squares, more material and labor. |
| Pitch and complexity | Steep pitches, hips, valleys, and dormers slow installation and raise cost. |
| Tear-off layers | A second existing layer must come off. More tear-off, more disposal. |
| Decking condition | Rotten or gapped board decking needs new sheathing before shingles go on. |
| Material choice | 30-year architectural shingle is standard. Class 4 impact-rated costs more up front, often earns insurance discounts. Metal costs most, lasts longest. |
| Who pays | On approved storm claims, insurance covers replacement minus your deductible. |
These are honest local ranges, not price bait. Your number gets set by measurement and inspection, in writing, before a single shingle moves.
Some roofs announce themselves: active leaks, shingles in the yard after wind, daylight in the attic. Most don't. The county-specific signals we see:
The 2000s construction boom roofed half this county in builder-grade shingles rated for 25 to 30 years. Between the March 2024 and May 2025 hail events, many are failing at 15 to 20. If your roof is original to a 2000s home, it's inspection time.
Bald spots, streaking, or granule piles at downspouts mean the shingle's UV armor is going.
Brittle 1980s and 90s shingles across St. Peters and St. Charles do this in their final years.
Subdivisions built together fail together. When your street starts, your date is close, and a shared storm may mean insurance is already paying for the street.
We'll tell you honestly which side of the repair-or-replace line you're on. If a roof repair buys you five more years, that's what we'll recommend.
Shingling over an old roof is legal in some cases and cheaper up front, and we still won't do it. A layover hides rotten decking, voids or shortens manufacturer warranties, adds weight, and guarantees the next replacement costs more because two layers come off instead of one. Every StCharlesRoof.com replacement is a full tear-off to the deck, so problems get found and fixed instead of buried.
| Factor | Layover | Full Tear-Off |
|---|---|---|
| Rotten decking found? | Hidden under old layer | Found and fixed |
| Manufacturer warranty | Voided or shortened | Full warranty valid |
| Roof weight | Doubled (stresses structure) | Single layer (correct) |
| Next replacement cost | Pays to remove 2 layers | Pays to remove 1 layer |
| Lifespan | Shortened by heat from old layer | Full rated lifespan |
| Insurance claim | Often denied or reduced | Fully documented |
Full tear-off and decking inspection, with photos of anything we find before we fix it
Synthetic underlayment, drip edge, and proper flashing, built to each municipality's code amendments
30-year architectural shingles as standard, never 3-tab; Class 4 impact-rated and standing-seam metal available
Balanced attic ventilation checked on every job, because bad ventilation cooks shingles from below and voids warranties
CertainTeed Master Craftsman installation standards, one project manager start to finish
Magnetic nail sweep of your entire yard before we leave
5-year written, transferable workmanship warranty on top of the manufacturer's material warranty
Check what applies. If two or more are true, a free inspection is overdue.
Class 4 impact-rated shingles are the highest impact-resistance rating for asphalt shingles, tested to withstand a 2-inch steel ball drop without cracking. In hail-prone St. Charles County, many Missouri insurers offer premium discounts for Class 4 roofs, and the upgrade often pays for itself over the roof's life.
After the county's recent hail run, we walk every replacement customer through the Class 4 math: upgrade cost, your insurer's discount, and what it means the next time golf-ball hail tracks up I-70. Sometimes the answer is standard architectural. But you'll decide with the numbers in front of you.
If hail or wind killed your roof, this becomes an insurance job: replacement covered minus your deductible. That changes the process, not the quality. We document the damage, support the claim, and meet your adjuster on the roof.
Great experience! Very professional and the quality of work was excellent. They showed up on time, communication was great, the whole process easy. Highly recommend!!
Susie
St. Charles, MO
Great company to work with! They did an awesome job, showed up when they said they would, and everything turned out great. Definitely recommend!
Sherry
Lake St. Louis, MO
They showed up on time, and did high-quality work. My new roof looks amazing, and they made the whole process easy. I would recommend them to anyone needing roofing work.
Dylan
O'Fallon, MO
One inspection tells you everything: what's damaged, what it costs, and whether insurance should be paying for it. Free, documented, and no-obligation for every home in St. Charles County.
No spam, no sold leads, no call centers. Your info goes to our local team.