5988 Mid Rivers Mall Drive #239. St. Peters, MO 63304

St. Charles County

Roofing, Siding & Windows For The
Discerning St. Charles County Homeowner

• GAF Golden Pledge Warranty Roofing
• Triple Pane Windows
• James Hardie Fiber Cement Siding

Welcome to XteriorPRO—the “best or bust” roofing, siding, and window company in St. Charles County.

We do things a little differently than most St. Charles County exterior-remodeling contractors. Instead of offering the typical Good, Better, Best line of products to satisfy a variety of budgets, we offer only the Best in every category.

This means we’re one of the few Master Elite roofers in the area that strongly promotes the Golden Pledge Warranty (GAF’s best warranty).

This means we don’t do vinyl or wood siding… we only install James Hardie fiber cement siding.

This means we don’t install double pane windows… as Your Local Window Depot USA, it’s triple pane ONLY.

Does our insistence on best-in-class products mean we’re the cheapest? No—you can definitely find a company willing to install inferior products at a cheaper price.

But we do offer you the most value for your money. Our prices align with what it takes to do the job exactly right. No more. No less.

We don’t nickel-and-dime you or surprise you with hidden charges on the final bill. The price we quote is concrete. Period. And if you do find a St. Charles County exterior remodeler who quotes you a cheaper price for the same materials and workmanship within 30 days of signing our Price Pledge, we’ll price-match them and give you $100.

We take the same approach to installation that we do for the products we sell. It’s why we hire only the best and most experienced installers—and pay them nearly DOUBLE what many contractors pay their installers. We understand that quality doesn’t come cheap. And we’re only too happy to invest whatever is necessary to ensure the best possible outcome for our customers.

Our Roofing, Siding & Window Services For St. Charles County


We’re in the 3% of roofers who qualify for GAF’s Master Elite status… and we’re one of the only Master Elite roofers in St. Charles County that offers Golden Pledge Warranty roofing.

James Hardie Fiber Cement Siding

Hardie siding is the epitome of looks, performance, durability, and value. That’s why it’s the only type of siding we install.


We’re Your Local Window Depot USA, so we provide top-quality triple pane windows at reasonable prices.

Get A Free Quote In St. Charles County Today

Contact us for a free quote on roofing, siding, or windows in St. Charles County. Our quotes are relaxed, informative, and free from pressure. We’re interested in SOLUTIONS… not solicitation.

What Our Customers Are Saying…

“[Co-Owner] Jason Quillman and his crew were helpful and responsive through all the projects, from the roof to the windows to the leaf guards.” -Peter & Margaret, St. Charles, MO 63304

Read 100 Reviews Here