Every new Connecticut business filing, every dayGrand Slam Plumbing
Killdeer Solutions LLC, Principal
Grand Slam Plumbing LLC appears to be a plumbing and HVAC services business based on the candidate website, which offers plumbing, heating, air conditioning, drain cleaning, ventilation, and gas fitting. The filing lists a principal address in Hamden, Connecticut, but the candidate website operates in Brandon, Manitoba, Canada, suggesting possible multi-location or registration discrepancy. The business is likely a small, locally-focused operation given the single-location website and contact form.
Filed July 10, 2026 · Hamden, CT · New Haven County
Find new plumbing & hvac services businesses in Hamden, then launch a cold email campaign built for you.

Every new Connecticut filing, every day
See how it worksSource
Connecticut Secretary of the State (business.ct.gov) · Entity 3476857 · Retrieved July 26, 2026
About Grand Slam Plumbing
Grand Slam Plumbing LLC filed in Connecticut on July 10, 2026, with a principal address in Hamden. The company is owned by Killdeer Solutions LLC, which also owns at least one other business. Its domain was registered nearly 11 years before the filing date, through WHC Online Solutions. The website is a modern WordPress site built with All in One SEO. We estimate annual revenue under $100,000 and a team of 1 to 5 employees. No annual report or EIN on file yet.
- Domain registered 3,977 days before filing, indicating a long-standing online presence.
- Owner is a limited liability company (Killdeer Solutions LLC) rather than an individual.
- Owner also appears in at least one other business filing.
- Website is modern and built with All in One SEO, suggesting active maintenance.
- 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 24, 2026.
One of 70 new businesses registered in Hamden in July 2026, and the only plumbing & hvac services business registered there that month.
Is this business yours?
It's getting views. Claim the page for free to control what your customers see.
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.
Officers / Authorized Persons
Frequently Asked Questions
When was Grand Slam Plumbing registered?
Grand Slam Plumbing was registered as LLC on July 10, 2026 in Connecticut.
Where is Grand Slam Plumbing located?
Grand Slam Plumbing is based in Hamden, CT, 06517-3529, in New Haven County.
What type of business is Grand Slam Plumbing?
Grand Slam Plumbing is classified as a plumbing & hvac services business (plumbing, heating, air conditioning & drain cleaning).
Does Grand Slam Plumbing have an EIN on file?
No EIN was found on file for Grand Slam Plumbing at the time of registration.
Who Sells to This Business
Based on the business category, these service providers typically target this type of business.
Turn fresh plumbing & hvac services businesses into your next customers
We find newly registered businesses, verify their contact details, and build the campaign. You review everything before anything sends.
Build My Campaign Free ›