Allstate Windows & Siding was built by the LaGrappe family on straight talk, quality products, and work that lasts.
Allstate Windows & Siding started with founder James C. LaGrappe Sr. and has been a family business ever since — one of the longest-serving windows and siding companies in the Houston area, with more than 50 years of local experience.
We're not a national franchise or a call center. When you work with Allstate, you deal directly with a family that has staked its name on this work for decades. Our own crews do the installations, and we treat your home like it's ours — respectful, tidy, and finished right.
That approach is why so much of our work comes from repeat customers and referrals, and why we hold a 4.7-star rating across 190 Google reviews.
Texas-made Vistamark windows, TDI windstorm-rated impact products, and James Hardie, LP SmartSide & Mastic siding — chosen for how they perform on the Gulf Coast.
No revolving door of subcontractors. Experienced Allstate installers who show up on time, protect your property, and clean up when they're done.
Fair, in-person estimates with no high-pressure sales — plus 12 months, no payments, no interest for qualified homeowners.
Whether it's a single failing window or a whole-home siding replacement, the standard is the same: quality materials, precise installation, and a finished result that holds up for years. That's what 50 years in Houston teaches you.
See Our WorkGet honest pricing from a Houston family business that has installed windows and siding for over 50 years. No payments and no interest for 12 months.
Fill out the form and we'll reach out to schedule a time that works for you. No pressure — just honest advice and clear pricing.
Or call now: (832) 204-1936