Windows Services

Simsbury, CT | Avon, CT

Free, In-House Consultations 

Free Quotes 

Showroom Available

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Upgrade Your Home With Energy-Efficient Windows

Since 1989, A-1 Windows & Doors has been helping homeowners throughout the Greater Farmington Valley bring their window visions to life. We're a family-owned business with 50 years of combined experience. New windows are an investment in comfort, energy savings, and curb appeal that will benefit your home for years to come.

As a locally owned and operated company, you'll always talk to a real person who genuinely cares about your project. From free in-home consultations to our 10-year installation guarantee, we support you throughout the entire process. Ready to get started? Contact us today for a free estimate delivered within 3 business days or less.

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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Custom Windows

Every home is unique, and your windows should reflect that. We'll work with you to design custom windows that perfectly fit your space and style preferences.
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Garden Windows

Bring the outdoors in with garden windows that provide extra space for plants, natural light, and a charming architectural element to your kitchen or living area.
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New Construction Windows

Building a new home? We specialize in new construction window installation. Your project starts with quality materials and skilled craftsmanship from the ground up.
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Vinyl Windows

Looking for durability and low maintenance? Our vinyl windows offer excellent energy efficiency and come in various styles to complement any home's aesthetic.

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Wood Windows

Wood windows remain a classic choice for timeless elegance and natural beauty. We'll help you select the perfect wood windows that add warmth and character.

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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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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.