Updated: Jan 31, 2026
Location and Projects
Address
65 TENNEY RD., Westford, MA, 01886
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Cornerstone Builders Construction
Cornerstone Builders, 65 Tenney Rd, Westford, MA (Owned by: John Schmider) holds a Home Improvement Contractor license according to the Massachusetts license board.
Their BuildZoom score of 92 ranks in the top 32% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cornerstone Builders, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Cornerstone Builders Services
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Cornerstone Builders Contact Information
Phone Number: (978) 846-2223
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Address: 65 TENNEY RD., Westford, MA 01886
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition wainscoting to walls in dinning area. change lighting addition cased opening in hallway - ada required opening
Valuation:
$71,910
Permit #:
C-19-00001
Status:
issued
Fee:
$1,079
Permit Type:
N/A
Building Type:
N/A
Remodel existing master bathroom on second floor
Valuation:
$50,000
Permit #:
R-22-00485
Status:
issued
Fee:
$576
Permit Type:
N/A
Building Type:
Ra proposed use -
Remove center partition between 2 bedrooms to make 1 large room
Valuation:
$13,700
Permit #:
17-55RB
Status:
complete
Fee:
$147
Permit Type:
N/A
Building Type:
N/A
Strip off area of shingles up and around skylites re flash and roof
Valuation:
$12,000
Permit #:
R-16-00331
Status:
issued
Fee:
$100
Permit Type:
N/A
Building Type:
Proposed use -
Basement remodel
Valuation:
$52,000
Permit #:
R-19-00153
Status:
issued
Fee:
$612
Permit Type:
N/A
Building Type:
Proposed use -
Remove and install 2 new windows
Valuation:
$15,000
Permit #:
R-15-00696
Status:
issued
Fee:
$100
Permit Type:
N/A
Building Type:
Proposed use -
Removel/install kitchen cabinets
Valuation:
$37,500
Permit #:
R-13-00011
Status:
issued
Fee:
$450
Permit Type:
N/A
Building Type:
Proposed use -
No Description Available
Valuation:
$50,000
Permit #:
B-R-12-00201
Status:
issued
Fee:
$600
Permit Type:
Other
Building Type:
N/A
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Cornerstone Builders License info
Verified License
| License # | 141172 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 03-02-2026 |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Cornerstone Builders at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
7
Permits
- Building permit records show that Cornerstone Builders has worked on 7 permitted projects.
Cornerstone Builders Employees
JS
John A Schmider
Responsible Person
JS
John Schmider
Owner