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Fiberglass Pools in Thornwood, NY
Coastal Pools & Spas designs and installs premium fiberglass pools for Thornwood homeowners — low-maintenance, algae-resistant shells built for Westchester backyards, with most installations completed in as little as 2–4 weeks.
Built for Thornwood Backyards, Made to Last
Coastal Pools & Spas brings over 20 years of experience to every fiberglass pool we install across Thornwood and the greater Mount Pleasant area. Each shell arrives factory-finished with a smooth, non-porous gelcoat surface — so it resists algae, needs fewer chemicals, and holds up to Westchester's changing seasons for decades to come.
- Most installations completed in just 2–4 weeks
- Smooth, non-porous gelcoat finish resists algae growth
- Authorized Latham & Imagine Pools dealer
- Manufacturer's structural warranty plus our own workmanship guarantee
Fiberglass Pool Models for Every Thornwood Yard
From sleek rectangular designs to natural freeform shapes, we'll help you choose the shell that fits your property, lifestyle, and budget.
The Coastal Pools & Spas Difference
We manage every stage of your project — from first consultation to final pool school — so Thornwood homeowners get a smooth, predictable build from a single point of contact.
20+ Years of Experience
Two decades of hands-on fiberglass and gunite pool installation across Westchester County.
Licensed & Insured
Fully licensed, insured, and an authorized dealer for Latham and Imagine Pools shells.
Fast, Predictable Installs
Most fiberglass pool installations are completed in just 2–4 weeks from groundbreak to splashdown.
One Point of Contact
We coordinate permits, subcontractors, and equipment so you're never chasing down updates.
Warranty-Backed Work
Manufacturer structural warranties plus Coastal Pools' own workmanship guarantee.
Low, Long-Term Upkeep
Non-porous gelcoat shells mean fewer chemicals, less scrubbing, and more time in the water.
Helpful Resources for Thornwood Homeowners
Everything you need to plan your fiberglass pool project with confidence, before your first consultation.
Pool Buying Guide
Compare fiberglass vs. gunite and find the right shape and size for your yard.
Read the guide →Financing Options
Explore flexible payment plans available for your Thornwood pool project.
View options →Maintenance & Care
Simple tips to keep your fiberglass pool crystal clear all season long.
Get the tips →Project Gallery
Browse completed fiberglass pool installations across Westchester County.
View gallery →What Westchester Homeowners Are Saying
from Coastal Pools & Spas customers
From our first meeting all the way through pool school, the whole project stayed on schedule and the communication never dropped off — the pool was ready in about a month.
We're particular people and this team still went above and beyond. The design process was fun, and the crew who built it were skilled, hardworking, and genuinely friendly.
After a rough start with a different contractor, a neighbor pointed us here. Honest advice from start to finish, and the finished pool is better quality than anything else we looked at.
Proudly Building Pools Across Westchester County
Thornwood is part of our core Westchester service area, alongside Chappaqua, Armonk, Pleasantville, and the rest of the Town of Mount Pleasant.
- Service AreaThornwood, NY & all of Westchester County
- Call Us(914) 420-8716
- ConsultationsFree on-site & virtual consultations available
Ready for Your Thornwood Backyard Upgrade?
Get a free, no-obligation consultation and see how a fiberglass pool from Coastal Pools & Spas can transform your backyard.