Door Services

Simsbury, CT | Avon, CT

Free, In-House Consultations 

Free Quotes 

Showroom Available

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Update Your Home With Durable Door Installation

Since 1989, A-1 has helped homeowners throughout the Greater Farmington Valley improve their homes with beautiful, durable doors. As a locally owned and operated company, we are your neighbors and bring a personal commitment to quality craftsmanship and attentive service. Our team has more than 50 years of combined experience and treats every installation with care and attention.

We complete everything in-house with no subcontractors and back our work with a 10-year installation Guarantee. Our family-owned business is here to help with a single door replacement or a whole-home upgrade. From free consultations to EPA-certified installation, we make the process straightforward and hassle-free. Contact us today for a free estimate.

Why Choose Us

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Showroom Available

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Locally & Family Owned

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Free Quotes

A1 Windows & Doors LLC
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No Sub-Contractors

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In-House Consultations

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Installation Guarantees

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Entry Doors

Create a welcoming entrance with an attractive entry door that boosts curb appeal and improves energy efficiency for your home.

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French Doors

Bring elegance and natural light to any room with classic French doors that connect your indoor and outdoor living spaces.

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Interior Doors

Update your home's style and function with quality interior doors that match your décor and add privacy.

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Patio Doors

Access your outdoor living areas easily with sliding or hinged patio doors that open up views and improve ventilation.

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Storm Doors

Shield your entry door from weather damage while adding ventilation and security with a durable, professionally installed storm door.

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A1 Windows & Doors LLC
First Responders Save 5%

A-1 honors those who serve our community. First responders receive 5% off all window installation services throughout the Greater Farmington Valley and surrounding towns.

Contact A-1 today to schedule your installation!

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

A1 Windows & Doors LLC
Quantity Discounts Available Now

Planning multiple window installations? A-1 offers special quantity discounts for larger projects across the Greater Farmington Valley area.

Reach out to A-1 to learn more about our quantity pricing.

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Our Recent Projects

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Our Recent Projects

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White basement window with one open pane reflecting trees and a yard outside
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Here's what our satisfied customers are saying...

At A-1 Windows & Doors LLC, we take pride in providing exceptional window services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of A-1 Windows & Doors LLC and let others know what you think.