Updated: May 19, 2026
Location
Address
1 MIFFLIN PL STE 400, Cambridge, MA, 02138
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Roy D Colby Jr Construction
Roy D Colby Jr, 1 Mifflin Pl, Cambridge, MA (Owned by: John Munroe) holds a Home Improvement Contractor license and 2 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 Roy D Colby Jr, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Roy D Colby Jr Services
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Roy D Colby Jr Contact Information
Phone Number: (617) 388-5702
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Address: 1 MIFFLIN PL STE 400, Cambridge, MA 02138
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Verified License
BuildZoom confirmed this contractor's license
Roy D Colby Jr License info
Verified License
| License # | 209272 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 08-16-2025 |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Roy D Colby Jr at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 209272 |
| 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 Roy D Colby Jr with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CS-073550 |
| Status | Inactive |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- According to the Massachusetts Department of Public Safety, 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 Roy D Colby Jr at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
Roy D Colby Jr Employees
JM
John Munroe
Owner
JM
John P Munroe
Secretary
RJ
Roy D Colby Jr
Owner