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Our Service Area

Guaranteed Chimney Service, Inc. is located in Westhampton Beach, Long Island, New York, and provides quality chimney and fireplace care services to Eastern Suffolk County. The cities/towns and zip codes we service are:

North Fork

Cities/Towns: Aquebogue, Calverton, East Marion, Jamesport, Laurel, Manorville, Mattituck, New Suffolk, Orient, Peconic, Riverhead, Shelter Island, Shelter Island Heights, South Jamesport, Southold, Wading River

Zip Codes: 11792, 11931, 11933, 11939, 11947, 11949, 11952, 11956, 11957, 11958, 11901, 11964, 11965, 11970, 11971

South Fork

Cities/Towns: Amagansett, Bridgehampton, Center Moriches, Easthampton, East Moriches, East Quogue, Eastport, Hampton Bays, Mastic, Mastic Beach, Montauk, Moriches, Quogue, Remsenburg, Sagaponack, Sagharbor, Shirley, Southampton, Speonk, Upton, Wainscott, Water Mill, Westhampton

Zip Codes: 11930, 11932, 11934, 11937, 11940, 11942, 11941, 11946, 11950, 11951, 11954, 11955, 11959, 11960, 11962, 11963, 11967, 11968, 11972, 11973, 11975, 11976, 11977, 11978

If you don’t see your city, town, or zip code listed, but believe you are within our service area, please contact us.

To schedule your appointment, call us at 631-288-9009!


Knowing about us could be just the thing to solve your fireplace and chimney system needs, so don’t wait any longer to get in touch.

Certifications/ Associations

Why Choose Guaranteed?

  • Expertise - This is what we do! We focus 100% of our business on all things chimney related. You could even say we are "chimney geeks".
  • Safety, Safety, Safety! - Your safety is our number one priority. We take no shortcuts. We're your neighbors! The owner and crew live, work and play in Eastern Long Island.
  • CSIA Certified Technicians - You get the guys who know right from wrong. Our technicians have been educated, tested and certified by the Chimney Safety Institute of America. There's more to a simple chimney sweep than meets the eye. An educated technician can spot a potential problem and recommend the correct repair - not just sell you something you don't need.
  • Reliable - we keep our appointments. We know your time is valuable. When you schedule an appointment with us, we show up! If unavoidable changes happen, we'll call you.

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