Licensed and Insured
Waterproof Foundation
Foundation waterproofing that keeps basements dry and protects your property.
About This Service
Water is a foundation’s worst enemy. Our waterproofing systems seal foundation walls against moisture, protecting basements and crawl spaces from leaks, mold and long term structural damage.
We assess each property and apply the right coating and membrane system for the conditions, giving you a dry, healthy space you can count on. Call (631) 725-5006 for a free estimate.
Free Estimates
Every project starts with a free, no pressure estimate and a clear written price.
Experienced Crews
Over 35 years of hands on experience in every trade we offer.
Clean, On Time Work
We protect your space, stick to the schedule and leave the site clean.
Project Gallery
Explore Our Services
Spray Foam Insulation
Air tight insulation that cuts energy costs.
Acoustical Ceilings
Clean, quiet drop ceiling systems.
Drywall
Hung, taped and finished to perfection.
Spackle
Smooth, seamless, paint ready surfaces.
Painting
Interior and exterior, clean lines that last.
Sheetrock
Installation and repair at any scale.
Metal Framing
Straight, strong, precision built walls.
Waterproof Foundation
Dry basements, protected foundations.
Fire Proof Solutions
Fire rated assemblies that meet code.
Fiberglass Insulation
Comfort and efficiency, room by room.
GOOD TO KNOW
How much will it cost?
Every project is different, so we do not guess. You get a free walkthrough and a clear written estimate before any work starts, with no obligation.
How soon can you start?
Call (631) 725-5006 and we will tell you honestly. Smaller jobs can often be scheduled quickly, and larger projects are planned around your timeline.
Do you work with builders and GCs?
Yes. We have worked alongside general contractors, builders and property managers across Long Island and NYC since 1987.
Are you licensed and insured?
Fully. DWS Interiors Inc is licensed and insured for residential and commercial work, and we are happy to provide proof before the job.