In-ground above-ground or semi in-ground we do it all! Blue Lagoon Pools is a family owned company with over 15 years experience. We work on diving pools and swim spas. We built our reputation on servicing our customers with respect and integrity. We care about giving our customers the best service and we respond to all requests within 24 hours. Our staff is courteous, hard-working and we follow-up on each call to be sure that we are satisfying each customer. We provide excellent service and many of our references have shown us that we have a superior reputation to other business' on Long Island.