All Access Builders specializes in custom window installation in Buffalo, NY, offering made-to-fit window designs for unique openings, non-standard sizes, and architecturally distinctive homes. Our custom window installation Buffalo NY services are ideal for historic homes, modern remodels, and homeowners who want personalized design, perfect fit, and top-tier energy efficiency.
Custom windows are perfect for homeowners who need more than standard factory sizes. Whether your home has unusual openings or you want to elevate your architecture, custom windows offer unmatched precision and beauty.
Benefits include:
Custom windows also provide excellent opportunities to improve curb appeal and interior aesthetics with unique shapes and features.
We can design and install nearly any type of custom window, including:
Our replacement options include:
Internal links to related pages can be added, such as:
Even the most custom designs meet or exceed energy-performance expectations. Our custom windows are engineered for Buffalo’s winter climate and year-round temperature swings.
Performance features include:
For additional industry guidance, homeowners may reference the NFRC window performance ratings.
We deliver a smooth and predictable custom installation experience from start to finish
We meet with you to discuss ideas, architectural style, preferred shapes, materials, and performance requirements.
We take precise measurements and provide a clear written estimate with timeline expectations.
Custom windows are ordered or fabricated to exact specifications, ensuring perfect fit and maximum energy efficiency.
We install using lead-safe practices, test operation, seal for insulation, and ensure you're satisfied with the final product.
Buffalo homeowners trust All Access Builders for custom window installation because every project is tailored to the home’s architecture, existing openings, and energy-efficiency goals. Our local team specializes in complex retrofit installations and delivers clean, precise finishes that look original to the home.
EXCELLENT Based on 133 reviews Posted on AndreTrustindex verifies that the original source of the review is Google. Had All Access Builders update exterior, this vinyl siding company was fantastic.Posted on Nora QTrustindex verifies that the original source of the review is Google. Went there after work to talk about replacing our old roof, and i was really impressed with All Access Builders. Matt explained options clearly, the crew arrived when they said they would, worked hard, protected our yard, cleaned up every nail and the finished roof looks excellent.Posted on Elena YTrustindex verifies that the original source of the review is Google. Got a roof patch and a bit of trim after a leak scare and the crew came quick did the work right cleaned up nice and the price felt fair.Posted on Jonas C.Trustindex verifies that the original source of the review is Google. Called All Access Builders in Buffalo for a quick estimate and they got back to me fast with clear next steps.The crew was courteous during the site visit and left the area tidy. Easy five stars.Posted on Joan CaffarelliTrustindex verifies that the original source of the review is Google. October 31 2025 Just finished having all new baseboards and trim put in and outside work Jessie and his Crew did an amazing job Troy was here for 4 days and so nice and very hard worker Pleasant and he did a great job Definitely a company you want to call I give them a 5 Star Will definitely be calling for more jobs we need done Thank you Troy and Jessie Happy CustomerPosted on Matthew CarlsonTrustindex verifies that the original source of the review is Google. Matt and his crews did a great job stepping in to an unusual situation to finish a garage addition for us, including building, siding, shingling, and numerous smaller punch list items. The workers were professional, reliable, and courteous and did an excellent job. Matt is responsive and told us what to expect and when to expect it. Matt makes clear that he valued us as customers, and we felt the cost was fair. We appreciate their hard work and would hire All Access again.Posted on Mary GilbertTrustindex verifies that the original source of the review is Google. All access builders is professional, friendly, fair and above all trustworthy which is hard to find. As a rehabbing I highly recommend. They do a waaay better job than I imagined..Posted on Robin JauchTrustindex verifies that the original source of the review is Google. Jesse, Ryan and crew were wonderful and easy to work with from start to finish. They just updated the flooring in my home and I’m blown away. They were communicative, prompt, professional, and the work was top notch!! Will definitely work with them again.Posted on michael mcpartlinTrustindex verifies that the original source of the review is Google. All access builders put a new roof and siding on my house.They did a great job and clean up was perfect. Siding crew even did a couple extras things that were much appreciated. Matt, the owner, was always accessible and very easy to work with. I highly recommend.
All Access Builders installs custom windows for homeowners and property owners throughout Buffalo and many nearby Western New York communities.
Whether your project is in the city or a surrounding suburb, the team measures, orders, and installs windows to fit your openings precisely and perform well in the local climate.
Ready to design the perfect custom window? Schedule a free design consultation with All Access Builders to review styles, finishes, and glass options tailored to your home.
Call today or request your appointment online, and a window specialist will discuss your goals, take precise measurements, and provide a clear plan and estimate before you move forward.
Custom windows are made-to-fit for non-standard sizes, unique openings, historic homes, or design-focused projects, ensuring precise fit, personalized style, and energy efficiency.
Arched/round, bay/bow, picture/fixed, casement/awning/hopper, and double-hung/slider windows tailored for projection, angles, grilles, and materials matching your architecture.
Double/triple-pane Low-E glass, argon gas, thick weatherstripping, and ENERGY STAR®/NFRC-rated performance handle winter cold, winds, and swings while sealing tightly.
Exact measurements match existing trim/casing, restore historic style, and upgrade energy performance without altering structure—boosting curb appeal and comfort.
Laminated/tempered glass options, tight sealing, and insulated features reduce drafts/heat loss, verified by NFRC ratings for year-round Buffalo weather resilience.