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National Building Services

National Building Services is a cleaning service in Smithtown, NY.

Listing details

The business

What they do
Cleaning service
Where
Smithtown, NY
Serves
New York
Phone
(516) 916-6006
Website
natlbuildingservices.com
Listing updated
Oct 25, 2026
Listing
Built from public records. Not claimed yet.

More cleaning service in Smithtown

  1. Manantial Cleaning Services Inc, Manantial Cleaning Services, Inc.

    ActiveCorporation registered in SAM.gov

    Smithtown, NY

    Ask it
    Proof for Manantial Cleaning Services Inc, Manantial Cleaning Services, Inc.
    SAM.gov registration
    SAM.gov MBB2MCNTL691
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Apr 20, 2027
    Checked
    Nov 2, 2026
    Where
    Smithtown, NY · serves New York
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  2. Blue Dot Janitorial Supplies

    Cleaning service

    Smithtown, NY

    CallAsk it
    Proof for Blue Dot Janitorial Supplies
    Where
    Smithtown, NY · serves New York
    Phone
    (800) 654-0114
    Listing
    Built from public records. Not claimed yet, so call them directly.

  3. City Wide Facility Solutions

    Cleaning service

    Smithtown, NY

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    Proof for City Wide Facility Solutions
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 388-5569
    Listing
    Built from public records. Not claimed yet, so call them directly.

  4. JMS Cleaning and Maintenance Service

    Cleaning service

    Smithtown, NY

    CallAsk it
    Proof for JMS Cleaning and Maintenance Service
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 228-8844
    Listing
    Built from public records. Not claimed yet, so call them directly.

  5. Long Island Rug Cleaning Service

    Cleaning service

    Smithtown, NY

    CallAsk it
    Proof for Long Island Rug Cleaning Service
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 382-6006
    Listing
    Built from public records. Not claimed yet, so call them directly.
All cleaning service in Smithtown, NY →

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Listing updated Oct 25, 2026. Hide an address, correct or remove this listing.

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Checked facts from public license files · Answers may be worded by Claude, an AI model from Anthropic; it never decides facts or order · How ranking works