From Basement to BeautifulRenew your vision for your basement.

Add Space ForYour Family to Enjoy

Make a PlayroomYour Kids Will Love.

Why Nassau County Homeowners Choose Us

Decades of industry experience

Waterproof, efficient materials

Locally owned and operated

Free consultations for basement finishing

Basement Finishing Company in Oyster Bay, Hempstead, Massapequa & Nearby

Renewal Home Systems is your locally owned, trusted basement finishing contractor. We transform your unfinished basement- no matter how damp, musty, or moldy- into a beautiful waterproof finished basement in Oyster Bay and nearby. Do you dream of transforming your basement into a basement apartment, basement gym, or even a delightful basement theatre? We can help by waterproofing, insulating, and remodeling your basement with energy-efficient, stunning materials that can't be damaged by moisture or mold.

Renewal Home Systems is your Total Basement Finishing™ contractor in the Nassau County area. We proudly serve Wantagh, Long Beach, Bellmore, Port Washington, Plainview, Glen Cove, Oceanside and the surrounding areas. Contact us today to schedule a free design consultation and estimate!

Finished basement walls, floors, ceilings & more in New York

Unlike traditional drywall and basement carpeting, our basement remodeling products are guaranteed to never succumb to moisture or mold. We provide expert basement finishing in Massapequa, Freeport, and locally throughout New York.

Our Basement Finishing Materials Make a Difference:

  • Remodeled basement floors are available in a broad range of materials including our stunning ThermalDry® Elite Plank floors that provide the aesthetic of wood flooring but remain completely waterproof.
  • Basement walls are made with inorganic materials so they'll never be damaged by moisture or mold and are available in two attractive finishes.
  • Basement drop ceiling tiles are protected by our no-sag warranty, waterproof, and support whichever lighting options you choose.

Schedule your free basement finishing design consultation in Oyster Bay, Hempstead, Massapequa, and nearby in New York

Renewal Home Systems is committed to completing your basement finishing project quickly, efficiently, and with materials you'll never have to replace. Increase the value, energy efficiency, and comfort of your home with an entire floor of additional living space. Check out our design ideas to see how we can make your vision come to life, and schedule a free, no-obligation consultation with one of our basement finishing specialists in Oyster Bay, Hempstead, Massapequa, and the surrounding local cities!

Your free quote includes all of the following:

  • A professional on-site basement inspection.
  • A design consultation with Total Basement Vision - our interactive software program.
  • Your basement finishing proposal - in writing and e-mailed to you or printed right away.
  • Our full-color 88-page book: "Basement Finishing Science."

We provide basement finishing, basement remodeling, and stunning basement finishing installation in Freeport, Levittown, Elmont, Hicksville, East Meadow, Valley Stream, Merrick, Hempstead, Oyster Bay, Massapequa, and nearby.

our service area

We serve the following areas

  • Albertson
  • Atlantic Beach
  • Baldwin
  • Bellmore
  • Carle Place
  • Cedarhurst
  • East Meadow
  • East Rockaway
  • Elmont
  • Floral Park
  • Franklin Square
  • Freeport
  • Garden City
  • Glen Cove
  • Glen Head
  • Glenwood Landing
  • Great Neck
  • Greenvale
  • Hempstead
  • Hewlett
  • Hicksville
  • Inwood
  • Island Park
  • Jericho
  • Lawrence
  • Levittown
  • Long Beach
  • Lynbrook
  • Malverne
  • Manhasset
  • Merrick
  • Mineola
  • New Hyde Park
  • Oceanside
  • Old Westbury
  • Point Lookout
  • Port Washington
  • Rockville Centre
  • Roosevelt
  • Roslyn
  • Roslyn Heights
  • Sea Cliff
  • Seaford
  • Uniondale
  • Valley Stream
  • Wantagh
  • West Hempstead
  • Westbury
  • Williston Park
  • Woodmere
Our Locations:

Total Basement Finishing Authorized Dealer
Service Area
Free Quote