Services Projects About Reviews Contact Call (716) 860-4423
Family Owned • Grand Island, NY

Expert Exterior
Home Services

Serving Grand Island & All of Western New York

Quality garages, decks, railings, siding, windows, porches, framing, covered patios and veneer stone. Honest pricing, proven craftsmanship, and direct communication with Brian — every project, every time.

Call Brian — (716) 860-4423 View Services
14+
Years in WNY
100%
Family Owned
Free
Estimates

What We Do

Our Services

From the footings to the finish. Brian and the CasXteriors crew handle the full exterior of your home with the same attention we'd give our own.

Garages
01

Garages

New construction, additions, and renovations. Durable garages that match your home and last through WNY winters.

Windows and Doors
02

Windows & Doors

Professional installation and replacement. Energy-efficient options that improve curb appeal and comfort.

Vinyl Railings
03

Vinyl Railings

Low-maintenance vinyl railings for porches, decks, and stairs. Built to last in Western New York weather.

Porches
04

Porches

Custom porch construction and renovations. Inviting outdoor spaces that complement your home's architecture.

Framing
05

Framing

Structural framing for additions, garages, and home improvements. Precise, code-compliant work you can trust.

Siding
06

Siding

Vinyl and exterior siding installation and replacement. Protect and beautify your home's exterior.

Covered Patios
07

Covered Patios

Beautiful outdoor living spaces with custom covered patios. Perfect for entertaining and relaxing year-round.

Decks
08

Decks

Custom deck construction using quality materials. Safe, beautiful, and built to last season after season.

Veneer Stone
09

Veneer Stone

Stone veneer installation that adds timeless elegance and lasting value to any home's exterior.

Our Work

Recent Projects

A sample of completed exterior work across Grand Island and Western New York. Hover or tap to pause.

Brian Castillo and the CasXteriors crew

Who We Are

Brian Castillo,
Founder & Builder

CasXteriors Inc. is family owned and operated on Grand Island, NY. Brian founded the company with a simple mission: treat every customer's home as if it were his own.

With over 14 years of experience across Western New York, we specialize in high-quality exterior work — from garages and framing to decks, railings, siding, and stone veneer. Brian personally oversees every project, ensuring honest pricing, clear communication, and craftsmanship you can trust.

We understand the challenges of Western New York weather and build solutions that last through harsh winters and freeze-thaw cycles.

Family Owned 14+ Years Experience Grand Island, NY Free Estimates
Get in Touch With Brian

Word of Mouth

What Homeowners Say

14 years of work across Grand Island and Western New York — here's what our neighbors have to say.

"[Placeholder review — replace with a real Google or Facebook review from a satisfied customer.] Brian was professional from the first quote to the last nail. The new deck looks fantastic and was done on schedule."

— Placeholder Name

"[Placeholder review.] Honest pricing, clean workmanship, and he actually picked up the phone when I called. Couldn't ask for more in a contractor."

— Placeholder Name

"[Placeholder review.] CasXteriors re-sided our whole house and wrapped the windows. Great crew, great result. Highly recommend to anyone on the Island."

— Placeholder Name

Get In Touch

Request a Free Estimate

Call or text Brian directly, or send a message below. We respond quickly and estimates are always free.

📞

Call or Text

(716) 860-4423
✉
📍

Location

1632 Whitehaven Road
Grand Island, NY 14072

🛠

Service Area

Grand Island, Buffalo, Tonawanda, Niagara Falls & all of Western New York