A1 windows & doors LLC

A1 windows & doors LLC A1 windows and doors is a local home improvement company which specializes in energy star windows, and thermally rated doors.

A1 windows & doors LLC was established in 1989 in the Farmington
Valley and still to this day operates from the Farmington Valley in our new
state of the art showroom. A1 windows & doors is owned and operated by Daniel DiMenna. We specialize in the installation of upper end energy star rated windows and doors, as well as many styles and colors of vinyl siding. All of our windows and doors are

backed with a minimum of a 20 year warranty. We also build and install
decks, 3 season rooms, and screened porch enclosures. We offer one of the most
aggressive labor guarantees in the business. If you're looking for a well
established company with an impeccable reputation for quality and fair prices,
we are the company for you. A1 Windows And Doors growth has been fueled by our professional installations, attention to customer service, and one of the most complete lines of windows and doors in our area. You will receive the personalized service that you deserve from our company. Our mission statement is "When quality matters". This is a statement that keeps our customers coming back. If you want to see the quality, make an appointment to come see our showroom. We have samples of many of the windows offered in this marketplace on display, so you can make an
educated decision on the products for your home.

🌱 Growth doesn’t happen overnight — it’s built season by season.This spring, we’re unveiling our new logo and refreshed ...
03/20/2026

🌱 Growth doesn’t happen overnight — it’s built season by season.

This spring, we’re unveiling our new logo and refreshed imagery, inspired by growth, progress, and the work we continue to do every day.

Our appearance may be changing, but our commitment to quality, trust, and long‑term performance remains exactly the same.

Thank you for being part of our journey.

Energy bills keep climbing — and homeowners are being told to “upgrade” everywhere they look.But here’s the reality:Even...
03/12/2026

Energy bills keep climbing — and homeowners are being told to “upgrade” everywhere they look.

But here’s the reality:
Even ENERGY STAR® certified products are designed to deliver their intended efficiency only when they’re properly selected and correctly installed.
We believe efficiency means: ✅ Choosing ENERGY STAR® certified products appropriate for the home
âś… Installing them according to manufacturer specifications and industry best practices
âś… Standing behind the work with a focus on long term performance, not quick sales
That’s how homeowners can get the comfort, efficiency, and value these products are designed to provide.

Big things are happening at A‑1 Windows & Doors.We’ve just added a second box truck to the fleet — a milestone that refl...
03/04/2026

Big things are happening at A‑1 Windows & Doors.

We’ve just added a second box truck to the fleet — a milestone that reflects how far we’ve come and where we’re headed next.
The truck isn’t on the road yet, but it represents a major shift for us. Soon we’ll be able to take on more work at the same time and deliver faster, more reliable service than ever.

This is just one piece of a much bigger transformation happening behind the scenes. Change is coming… and we can’t wait to show you what’s next.

Winter is slowly showing signs of thawing out, maybe? Make your plans to keep more heat inside next winter NOW! Book you...
02/18/2026

Winter is slowly showing signs of thawing out, maybe? Make your plans to keep more heat inside next winter NOW! Book your Free consultation today and have your new windows installed in time to enjoy opening them before they do their real job.

At A-1 we pride ourselves in using the industries top performing products. Each unit designed to fit your style, and desired performance. Our team of professionals will take care to leave your home in better condition then when we arrive.

With Punxsutawney Phill seeing her shadow this year, don't let yourself forget that Spring is right around the corner. N...
02/03/2026

With Punxsutawney Phill seeing her shadow this year, don't let yourself forget that Spring is right around the corner. Now is the time to plan your spring projects. Booking April NOW!

12/05/2024
Another project well done. When you have a cohesive team, projects like this are just another fun way to pass the work w...
10/22/2024

Another project well done. When you have a cohesive team, projects like this are just another fun way to pass the work week.

When we take on projects such as this, we don't take the easy way out. Here we changed from five entry door units used a...
10/22/2024

When we take on projects such as this, we don't take the easy way out. Here we changed from five entry door units used as windows around the central French door and replaced all six. The entry door is a full view double from Therma-Tru Doors installed in their full composite frame on adjustable hinges. The windows from Mercury Excelum, Inc., are their EOS+ fixed casements with factory painted custom colored exterior. Thanks to Miner's Inc. were we got the AZEK primed PVC exterior and all interior millwork. This project took precise planning to ensure alignment with the new units. When finished our customer truly realized how inefficient their old units were. Making changes for esthetic purposes can have many unintended effects.

Address

7 Herman Drive
Simsbury, CT
06070

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Thursday 8am - 4pm

Website

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