Updated: Jul 17, 2026
Location
Address
77 Stillwater Rd., South Deerfield, MA, 01373
Use our bidding system to
request a quote
Leon's Markowski Son Construction
Leon's Markowski Son Inc, 77 Stillwater Rd, South Deerfield, MA (Owned by: Leon Markowski) holds a Home Improvement Contractor license and 6 other licenses according to the Massachusetts license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring Leon's Markowski Son Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Leon's Markowski Son Inc Services
Start a project today:
Leon's Markowski Son Inc Contact Information
Phone Number: (413) 348-4252
Edit
Address: 77 Stillwater Rd., South Deerfield, MA 01373
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Similar Contractors See more
140
BZ Score
$17.5K
Avg Project
-
Projects
149
BZ Score
$5.5K
Avg Project
-
Projects
License # CS-057725
Springfield, MA
133
BZ Score
$6.4K
Avg Project
-
Projects
Leon's Markowski Son Inc Reviews
BuildZoom hasn't received any reviews for Leon's Markowski Son Inc. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Leon's Markowski Son Inc License info
Verified License
| License # | 188301 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 09-13-2025 |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Leon's Markowski Son Inc 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-035898 |
| 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 Leon's Markowski Son Inc 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 # | 230733 |
| 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 Leon's Markowski Son Inc with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 114410 |
| Status | Active |
| City | Newton |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Leon's Markowski Son Inc with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 114410 |
| Status | Active |
| City | Newton |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Leon's Markowski Son Inc with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 230733 |
| 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 Leon's Markowski Son Inc with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 107003 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Leon's Markowski Son Inc at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
Leon's Markowski Son Inc Employees
LM
Leon F Markowski
Owner
LM
Leon Markowski
Owner
LI
Leon S. Markowski & Son Inc.
Owner