Run a free full auditDoerr Siding & Window is a window installer in East Peoria, IL, located at 603 Pinecrest Dr. The company specializes in exterior home improvements, offering installation, repair, and replacement services for doors, siding, gutters, windows, skylights, decks, fencing, roofing, and lockers. Since 1969, it has served customers in the Tri-County area of Central Illinois, providing a wide range of product options from brands such as Mastic, CertainTeed, GAF, Anderson, and ThermaTru Doors. The business operates as an employee-based company, using subcontractors only for specific additional services like electrical or excavation work. It holds a 4.20 rating based on customer reviews.
Founded in 1969 by German immigrant Erwin Doerr, the company grew from a small remodeling operation into a major exterior remodeling firm alongside his brother Willie Sr. Today, Steve, Willie Jr., and Scott Doerr continue the family tradition, maintaining a showroom and virtual design center at the East Peoria location where clients can view and touch products. The company emphasizes rigid training and installation standards to ensure high-quality results. Doerr Siding & Window offers a lifetime guarantee on its high-quality vinyl siding, which is guaranteed not to fade. Clients have direct access to owners and design consultants, including Steve Doerr, Scott Doerr, Willie Doerr, and Chris VanAntwerp, who provide personalized service and expertise from initial estimates through final installation.
Doerr Siding & Window is known for its long-standing presence in Central Illinois, with over 40 years of experience serving the community. The business is recognized for its quality products and craftsmanship, as reflected in its positive customer ratings. It remains a trusted local choice for homeowners looking for reliable exterior remodeling services.
Doerr Siding & Window combines decades of family-owned expertise with a comprehensive range of exterior services, making it a dependable partner for home improvement projects in East Peoria.
The business is situated on Pinecrest Drive, approximately a tenth of a mile from the road itself. It is located near East Muller Road and Fire Station Number Four, both within half a mile.
BizScoreAI assigns a Content score of 81 out of 100, reflecting substantial and relevant website content that helps search engines reward the business with better visibility. An Authority score of 75 out of 100.
BizScoreAI scanned the website doerrsidingandwindow.com on August 12, 2026. Doerr Siding & Window has a BizScore of 45 out of 100.
AI visibility scan by category: AI Discovery 0 of 25 points, Structured Data 0 of 25 points, Content Readiness 10 of 30 points, AI Trust Signals 10 of 20 points.
Website audit sub-scores (out of 100): On-Page 74, Technical 68, Performance 65, Content 81.
Strengths: 4 checks passed. AI Content Blocking, Hyperlocal Targeting, Meta Description, About/Team Page.
Areas to improve: 12 checks. llms.txt (failed), FAQPage Schema (failed), Google Business Profile Link (failed), LocalBusiness Schema (failed), Third-Party Review Links (failed), Q&A Content (failed), Organization Schema (warning), Speakable Schema (warning), Local Multimedia (warning), Weak Heading Structure (warning), XML Sitemap (warning), Author Signals (warning).
Browse: Businesses in East Peoria, IL · Businesses in Illinois
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