Updated: May 16, 2026
Location and Projects
Address
7 Hartwell Rd, North Oxford, MA, 01537
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Mahlert's Construction, Inc
Mahlert's Construction, Inc, 7 Hartwell Rd, North Oxford, MA (Owned by: Jonathan Mahlert) holds a Home Improvement Contractor license and 5 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 Mahlert's Construction, Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mahlert's Construction, Inc Services
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Mahlert's Construction, Inc Contact Information
Phone Number: (774) 772-0586
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Address: 7 Hartwell Rd, North Oxford, MA 01537
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Building Permits by Mahlert's Construction, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Convert 2-bedroom home into 4-bedroom - due to bedroom conversion, bringing entire home to have hardwired smoke/co's.
Valuation:
$9,300
Permit #:
B-18-441
Status:
complete
Fee:
$168
Permit Type:
Addition, Alterat...
Building Type:
Single Family
Convert 2-bedroom home into 3-bedroom - due to bedroom conversion bringing entire home to have hardwired smoke/co's
Valuation:
$9,300
Permit #:
TB-18-441
Status:
filed
Fee:
$168
Permit Type:
Addition alterati...
Building Type:
Single family
No Description Available
Valuation:
$150,000
Permit #:
BP-18-30
Status:
complete
Fee:
$1,370
Permit Type:
Addition/alteration
Building Type:
N/A
No Description Available
Valuation:
$76,000
Permit #:
BP-18-83
Status:
issued
Fee:
$684
Permit Type:
Addition/alteration
Building Type:
N/A
Remove front entrance deck & repalce with new larger deck 18 x 6
Valuation:
$4,000
Permit #:
187852
Status:
complete
Fee:
N/A
Permit Type:
Deck
Building Type:
N/A
No Description Available
Valuation:
$66,000
Permit #:
B20161195
Status:
issued
Fee:
$594
Permit Type:
Addition/alteration
Building Type:
N/A
No Description Available
Valuation:
$3,000
Permit #:
B20161587
Status:
issued
Fee:
$50
Permit Type:
Addition/alteration
Building Type:
N/A
No Description Available
Valuation:
$4,000
Permit #:
BP-14-189
Status:
complete
Fee:
N/A
Permit Type:
Replacementwindow...
Building Type:
N/A
No Description Available
Valuation:
$1,500
Permit #:
BP-16-195
Status:
complete
Fee:
$40
Permit Type:
Replacementwindow...
Building Type:
N/A
No Description Available
Valuation:
$14,000
Permit #:
BP-2010-0192
Status:
complete
Fee:
$50
Permit Type:
Other
Building Type:
N/A
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Mahlert's Construction, Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Mahlert's Construction, Inc License info
Verified License
| License # | 191592 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Mahlert's Construction, 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 # | 167654 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Mahlert's Construction, 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-040010 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Mahlert's Construction, 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 # | 114964 |
| 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 Mahlert's Construction, 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 # | 114964 |
| 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 Mahlert's Construction, Inc with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 108189 |
| 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 Mahlert's Construction, 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
8
Permits
- Building permit records show that Mahlert's Construction, Inc has worked on 8 permitted projects.
Mahlert's Construction, Inc Employees
JM
Jonathan F Mahlert
Responsible Person
JM
Jonathan Mahlert
Owner
MI
Mahlert's Construction, Inc.
Owner
RM
Richard L Mahlert
Owner
RM
Richard Mahlert
Owner