Kennett Square’s Andersen Certified Elite Contractor. Serving the borough, Kennett Township, New Garden Township, and all of southern Chester County with premium window and door installation. Free in-home estimates. Price Match Guarantee.
40% Off & 0% Financing Available. Plus Our Price Match Guarantee — Find a Lower Price Anywhere and We'll Match It.
Kennett Square is one of the most distinctive small communities in the Philadelphia region — a borough with genuine character, a walkable downtown on State Street, and a setting in the heart of the Brandywine Valley that draws people from across the country. Known worldwide as the Mushroom Capital of the World, Kennett Square has built an identity around quality, community, and a sense of place that most suburban communities never achieve.
The homes here reflect that character. The borough’s older Victorian and early 20th century properties on Cypress Street, East Linden Street, and the surrounding residential blocks have the kind of architectural detail that newer construction can’t replicate. The surrounding Kennett Township and New Garden Township properties sit on larger rural and semi-rural lots in the Brandywine Valley countryside — farmhouses, colonials, and newer construction that takes advantage of the landscape. All of it is subject to the same four-season Pennsylvania climate: cold winters that expose every gap in a window’s seal, hot summers that drive up cooling costs, and wet springs that test every frame and sill.
We’re the Andersen Certified Elite Contractor serving Kennett Square and all of Chester County. Over 20,000 windows and doors installed across PA, NJ and Delaware. Most installations completed in 1–2 days. Price Match Guarantee. Windows and doors that are as well-made as the community they’re installed in.

Kennett Square’s housing stock divides cleanly between the borough and the surrounding townships. In the borough — on Cypress Street, East Linden, South Broad Street, and the residential blocks radiating from the State Street downtown — the homes are predominantly late-Victorian and early 20th century construction with original character that homeowners have invested in preserving. These properties often have original wood-frame windows or early replacement windows that are well past their useful life, set in openings that may have settled and shifted over a century of seasonal movement.
In Kennett Township and New Garden Township, the construction shifts to rural and semi-rural residential — farmhouses and older colonials on larger lots, postwar ranches, and newer construction that takes advantage of the Brandywine Valley landscape. The window replacement need here is driven by age, performance failure, and the practical reality of homes that sit in an exposed, four-season climate. We install Andersen replacement windows throughout Kennett Square and the surrounding townships, every window a genuine Andersen product backed by Andersen’s industry-leading warranty.
Double Hung Windows
The most historically appropriate and most popular choice for Kennett Square’s Victorian and colonial borough homes. Both sashes tilt in for easy cleaning, excellent ventilation, and a classic profile that suits the borough’s traditional architectural character.
Casement Windows
Hinged at the side for maximum airflow and a tight energy seal. A strong choice for Kennett Square’s older kitchen configurations and for the rural township properties where ventilation and energy performance are the priority.
Bay & Bow Windows
Project outward from the home, adding interior space and curb appeal. Common in Kennett Square’s larger Victorian properties and in the township farmhouses where original bay configurations are part of the home’s character.
Picture Windows
Fixed panels that maximize natural light and frame views. Particularly popular in Kennett Township and New Garden Township properties where homes are oriented toward the Brandywine Valley countryside and open landscape.
Sliding Windows
Smooth horizontal operation, low maintenance. Found in the postwar ranches and newer construction throughout Kennett Township and New Garden Township.
Awning Windows
Hinged at the top for ventilation in any weather. A practical choice for Kennett Square’s older borough basement and bathroom configurations and for the wet Brandywine Valley spring season.
From the Victorian entry doors on Kennett Square’s borough properties — many original to the home or replaced decades ago with products that have since degraded — to the patio and sliding glass doors on Kennett Township’s rural properties that take the full force of the Brandywine Valley’s four-season climate, the door replacement need in this market is real and consistent.
We install Andersen and ProVia doors throughout Kennett Square and the surrounding townships, handled by the same Andersen Certified Elite crews that install our windows. Most Kennett Square door installations completed in a single day, backed by manufacturer warranties and our own installation guarantee.

Entry Doors — we install Andersen and ProVia entry doors in fiberglass, steel, and wood options. In Kennett Square’s historic borough, a quality entry door is a visible expression of care for a property — and an immediate improvement in security, energy performance, and street presence.
Patio Doors — Andersen patio doors in French door and gliding configurations. Popular in Kennett Township’s rural properties where rear yard, garden, and outdoor living access is a central feature of the home.
Sliding Glass Doors — smooth, secure, and energy efficient. Andersen sliding glass doors replace worn originals in the township properties with a clean, modern upgrade built for Chester County’s four-season climate.
French Doors — classic hinged door pairs for patio and garden access. A natural architectural fit for Kennett Square’s Victorian and colonial borough properties and for the township farmhouses where the formality of a French door suits the home’s character.
As an Andersen Certified Elite Contractor we install the full Andersen line for Kennett Square homeowners. Given the mix of older borough and rural township construction in this market, our recommendations vary by property:
Andersen 100 Series
Fibrex composite construction. Low maintenance, energy efficient, and a practical upgrade for the postwar ranches and newer construction throughout Kennett Township and New Garden Township.
Andersen 200 Series
Wood interior with easy-care exterior. The most architecturally appropriate choice for Kennett Square’s older Victorian borough homes where interior wood finishes are part of the property’s character.
Andersen 400 Series
Andersen’s most popular series. Exceptional durability, energy performance, and design flexibility. Our standard recommendation for most Kennett Square and township installations where performance and long-term value are the priority.
Andersen A-Series
Architect-grade performance with fully customizable configurations. The right choice for Kennett Square’s higher-end historic renovations and for township properties where non-standard opening sizes require a custom solution.
We walk you through every option during your free in-home consultation and make specific recommendations based on your Kennett Square home’s configuration and your goals.
We serve Kennett Square Borough and all surrounding southern Chester County communities. Our installation crews know this part of the county well — the historic borough, the Kennett Township and New Garden Township countryside, and the communities stretching north toward West Chester and Oxford.
Kennett Square Borough — the Mushroom Capital of the World and our primary southern Chester County market in this area. Full service window and door installation throughout all borough neighborhoods.
Kennett Township PA — rural Chester County township surrounding the borough. Active window replacement market across farmhouses, colonials, and newer rural construction.
New Garden Township PA — southern Chester County township with significant residential development. Full service coverage.
Avondale PA — neighboring New Garden Township community to the southwest.
Oxford PA — southern Chester County borough to the southeast.
West Chester PA — Chester County seat to the north.
Coatesville PA — Chester County’s largest city to the northwest.
We serve all of Chester County. View our full Chester County service area for complete coverage details.
“The crew of 5 showed up on time and were super professional. The sales person worked with us and spent the appropriate amount of time making sure we knew all our options — not overly pushy. This company really shines on installation.”
— C. Gettman, Kennett Square, PA
“They left my house cleaner than when they arrived. The crew answered all of my questions and showed us exactly how the windows work. 10/10 recommend.”
Stephanie D., Coatesville, PA
“Everyone was friendly, professional, and extremely knowledgeable. I had so many questions and they took the time to answer every one. They proved to be the best choice.”
— Megan D., West Chester, PA
“ACRE was amazing at responding, addressing, and correcting issues quickly. Super friendly and courteous and does amazing work.”
Brian Y., Exton, PA
Yes. We serve Kennett Square Borough and all surrounding communities including Kennett Township, New Garden Township, Avondale, and Oxford. Our Andersen Certified Elite installation crews are available for free in-home estimates 7 days a week throughout Kennett Square and southern Chester County.
The highest tier of installer certification awarded by Andersen Windows & Doors. It requires factory training, verified installation standards, and a proven performance record. Very few window companies serving Kennett Square PA hold this designation.
Most Kennett Square homeowners invest between $800 and $1,400 per window installed — including product, labor, and cleanup. In the historic borough, non-standard openings in older properties may affect pricing. We offer 0% financing and our Price Match Guarantee means you won’t find a better price for genuine Andersen windows from a certified installer anywhere in Kennett Square or Chester County.
Yes — historic and older properties are a significant part of our work throughout Chester County. Kennett Square’s borough homes often have non-standard opening sizes that have settled over time, original wood frames in varying condition, and in properties built before 1978, lead paint around window surrounds. Our crews are EPA Lead Safe Certified and fully experienced with the specific challenges of Kennett Square’s historic borough construction.
Most Kennett Square window replacement projects are completed in a single day. A typical 10–15 window installation takes one full day with our certified crew. Older borough properties occasionally require additional time for non-standard configurations, which we identify and communicate during the free in-home consultation before any work begins.
Yes — Andersen’s manufacturer warranty on the product plus our own installation warranty on the labor. Kennett Square homeowners have full coverage on both the window and the installation.
Yes. We serve all of Kennett Township, New Garden Township, and the broader southern Chester County rural and semi-rural residential market. Our installation crews are experienced with the larger lot properties, farmhouse configurations, and older rural construction common throughout this part of Chester County. Call 610-904-9237 to confirm coverage for your specific address.
We come to your Kennett Square home, measure every opening, walk you through your Andersen product options, and give you a guaranteed best price. No pressure. No obligation. Available 7 days a week throughout Kennett Square Borough, Kennett Township, New Garden Township, and all of southern Chester County.
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