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Thornwood, NY's Trusted Fiberglass Pool Builder
Coastal Pools & Spas designs and installs premium, non-slip fiberglass pools for Thornwood backyards — durable gel-coat shells, fast installation, and low-maintenance beauty that lasts for years.
Thornwood's Local Fiberglass Pool Experts
Coastal Pools & Spas has spent over 20 years designing and installing fiberglass pools across Westchester County. We know Thornwood's soil conditions, permitting process, and seasonal weather — so your project moves forward with fewer surprises and a finish that lasts.
Authorized Latham & Imagine Dealer
Access to a wide range of pre-manufactured fiberglass shells in multiple shapes, sizes, and gel-coat finishes.
Fast, Predictable Installation
Because the shell is factory-finished, most fiberglass installations in Thornwood are completed in as little as 2–3 weeks after permitting.
Low-Maintenance, Non-Porous Surface
The smooth gel-coat shell resists algae growth and chemical absorption, so you spend less time scrubbing and more time swimming.
Full-Service Local Team
From permits and excavation to plumbing, backfill, and decking — one local Westchester County crew handles every phase.
Planning a Pool? Start Here
Helpful guides from our team to help Thornwood homeowners plan their fiberglass pool project with confidence.
Fiberglass vs. Gunite Pools
What Westchester homeowners should know before choosing between a fiberglass shell and a poured concrete pool.
Read the guide
Our Step-by-Step Install Process
From first consultation to final start-up — see exactly what happens at each stage of your fiberglass pool build.
See the process
Backyard & Outdoor Living Ideas
Pair your new pool with patios, retaining walls, and spa add-ons designed to fit your Thornwood property.
Get inspiredLocal to Westchester County
Service Area
Thornwood, NY and surrounding Westchester County towns
Call for a Free Consultation
Typical Timeline
Most fiberglass pool installs are complete in 2–3 weeks after permitting
What Homeowners Are Saying
"The Coastal Pools team walked us through every step — permits, excavation, install. Our fiberglass pool was ready in under three weeks and looks incredible."
"We compared a few local pool builders and Coastal Pools stood out for communication and craftsmanship. The gel-coat finish still looks brand new."
"Professional from the free consultation to final start-up. Low maintenance really does mean low maintenance — couldn't be happier with our backyard now."
Reviews shown are representative examples — replace with your live Google Business Profile reviews.
Ready to Build Your Fiberglass Pool in Thornwood?
Call now to schedule your free consultation and get a clear timeline and price for your backyard.