Locust Valley (Main) Oyster Bay Manhasset
516-671-1122 516-922-1122 516-365-4433
HomeAbout UsContact UsPlumbing  & Heating Services
  Locust Valley
(Main Office)
- Oyster Bay
- Manhasset
Our Locust Valley storefront since 1965,
298 Forest Avenue

Deegan Plumbing & Heating has three convenient North Shore Long Island locations.

Give us a call or stop by for more information or to schedule an estimate or a plumbing or heating job.

Our office hours are Monday- Saturday 8am-5pm.

Outside of business hours, we have a 24-hour live answering service & will get back to you promptly to schedule work.

You can also send us an e-mail:

No job is too big or small, call Deegan Plumbing for fast & reliable service.
Richard P. Deegan Plumbers are known for quality and trustworthy Long Island Plumbing work, specifically North Shore Plumbing work. If you need a Nassau Plumber, a Suffolk Plumber, or a North Shore Plumber, look no further than Deegan Plumbing. We specialize in boiler repair, backflow inspection, clogged drains, and radiant heat installations. We carry a full range of plumbing & heating supplies including Weil Mclain boilers, AO Smith water heaters, Kohler faucets, American Standard faucets, Grohe faucets, Delta faucets, & Moen faucets.
298 Forest Avenue 19 Spring Street 8 Hillcrest Avenue
Locust Valley, NY 11560 Oyster Bay, NY 11771 Manhasset, NY 11030
(516) 671-1122 (516) 922-1122 (516) 365-4433