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Window Installation Services

Simsbury, CT | Avon, CT

Free, In-House Consultations 

Free Quotes 

Showroom Available

Hours:

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Professional Window Installation Services for Your Home

Since 1989, A-1 Windows & Doors LLC has provided reliable window installation services throughout the Greater Farmington Valley. Our team brings over 50 years of combined experience to every project, delivering quality craftsmanship and lasting results. As a locally owned and family operated business, we understand the importance of creating comfortable, energy-efficient homes for our neighbors.

We handle every aspect of your project from initial consultation to final installation. Our comprehensive approach means no subcontractors involved. Our EPA certified professionals work directly with you, providing personalized service and a 10-year installation guarantee. From a single window replacement to a complete home upgrade, we deliver solutions tailored to your specific needs and budget. Contact us today.

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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Door Solutions

Our door installation services enhance both the security and curb appeal of your home with quality products and precise installation techniques.

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Door and Window Services

We provide complete solutions for all your door and window needs, from selection through installation, backed by our comprehensive warranty coverage.
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In-Home Estimates

Schedule a free consultation at your convenience. We assess your project and provide detailed quotes within three business days or less.

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Window Solutions

From energy-efficient replacements to custom designs, our window installation services improve comfort and reduce energy costs throughout the year.
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.