Every new New York business filing, every dayGDK Construction
Grzegorz Krzyzek, Registered Agent
The business appears to be a home improvement contractor operating as GDK Construction, based in Suffolk County, NY. The LLC filing provides a principal address at 17 Hollow Ct, Calverton, NY.
Filed October 9, 2025 · Calverton, NY · Suffolk County
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New York Department of State, Division of Corporations · Entity 7730875 · Retrieved May 6, 2026
About GDK Construction
GDK HOME IMPROVEMENT, INC. filed in New York on October 9, 2025, as a general contractor in Calverton, with owner Grzegorz Krzyzek serving as registered agent. The domain was registered 1,409 days before filing, on November 30, 2021, through NameCheap, and the website is a modern WordPress site that confirmed the company's identity. We estimate revenue under $100K and 1 to 5 employees. No annual report or EIN on file yet.
- Domain registered 1,409 days before the New York filing date.
- Filed personally by owner Grzegorz Krzyzek as registered agent.
- Website is a modern WordPress site that confirmed the company's identity.
- We estimate revenue under $100K and 1-5 employees.
- No annual report or EIN on file yet.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 4 new businesses registered in Calverton in October 2025, and the only home improvement business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was GDK Construction registered?
GDK Construction was registered as Corp on October 9, 2025 in New York.
Where is GDK Construction located?
GDK Construction is based in Calverton, NY, 11933, in Suffolk County.
What type of business is GDK Construction?
GDK Construction is classified as a home improvement business (general contractor).
Does GDK Construction have an EIN on file?
No EIN was found on file for GDK Construction at the time of registration.
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