About

A-1 Windows & Doors LLC

About A-1 Windows & Doors LLC

At A-1 Windows & Doors, we’ve proudly served the Greater Farmington Valley and surrounding Connecticut communities since 1989 as a locally owned, family-operated window and door company. Owned by Dan, who grew up right here in the area, our business is rooted in a deep connection to the community we serve. With over 50 years of combined experience, we’re more than just a contractor—we’re your neighbors, committed to delivering dependable service and lasting results. From your first visit to our Simsbury showroom to the final installation, you’ll work directly with our knowledgeable, in-house team—no subcontractors, no runaround. As an EPA-certified, one-stop shop (handling everything except product manufacturing), we provide free in-house consultations, honest guidance, and personalized solutions for projects of any size—even if you just need one window replaced.

We believe your experience should be as smooth as your finished project. That’s why we offer fast, free quotes within three business days or less, clear communication with real people every step of the way, and a 10-year installation guarantee (1 year for storm doors) for your peace of mind. Whether you're upgrading your home or simply improving comfort and efficiency, A-1 is here to make the process easy, transparent, and stress-free. Contact us today to schedule your free consultation or visit our Simsbury showroom—we look forward to helping you get started.

Certifications

• EPA Lead Safe Renovators
• Manufacturer-Certified Installers