Updated: Jul 04, 2026
Location
Address
21 HILL RD S2, Waltham, MA, 02451
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Teodor J Chojnacki Construction
Teodor J Chojnacki, 21 Hill Rd, Waltham, MA (Owned by: Vassiliy Demenkov) holds a Home Improvement Contractor license and 3 other licenses according to the Massachusetts license board.
Their BuildZoom score of 91 ranks in the top 37% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Teodor J Chojnacki, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
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Teodor J Chojnacki Contact Information
Phone Number: (617) 320-0515
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Address: 21 HILL RD S2, Waltham, MA 02451
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Teodor J Chojnacki License info
Verified License
| License # | 208527 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Teodor J Chojnacki at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CS-015673 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Teodor J Chojnacki at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 208527 |
| Status | Active |
| City | Newton |
| Type | Building Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Teodor J Chojnacki with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 208527 |
| Status | Active |
| City | Newton |
| Type | Residential Builder |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Teodor J Chojnacki with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
Teodor J Chojnacki Employees
TC
Teodor J Chojnacki
Owner
VD
Vassiliy Demenkov
Owner