Updated: May 30, 2026
Location and Projects
Address
206 Andover Road, Billerica, MA, 01821
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Diamond Remodeling
Diamond Remodeling, 206 Andover Rd, Billerica, MA (Owned by: Robert Mahar) holds a Home Improvement Contractor license according to the Massachusetts license board.
Their BuildZoom score of 95 ranks in the top 22% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diamond Remodeling, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Diamond Remodeling Services
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Diamond Remodeling Contact Information
Phone Number: (978) 930-2991
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Address: 206 Andover Road, Billerica, MA 01821
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Diamond Remodeling Billerica
Quality
95
78th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Diamond Remodeling has a BuildZoom score of 95, which places them above 78% of 139,240 contractors in Massachusetts.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Diamond Remodeling has worked on at least
2.0 projects over the past 2 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$50k-$100k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remodel kitchen tile bathrooms addition new flooring plaster and paint compliant with 780 cmr and brookline zoning by laws
Valuation:
$63,000
Permit #:
BP-2025-000905
Status:
issued
Fee:
$760
Permit Type:
N/A
Building Type:
N/A
Complete bathroom renovation. install shower vanity toilet faucet and shower door. compliant with 780 cmr and brookline zoning by laws
Valuation:
$12,000
Permit #:
BP-2024-001600
Status:
issued
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Upgrade/renovate rental unit
Valuation:
$51,000
Permit #:
BP-2021-000297
Status:
issued
Fee:
$660
Permit Type:
N/A
Building Type:
Commercial w/resi...
Remove old vinyl siding and replace with new vinyl siding. replace new rubber roof on back of the house over the office. clean up all debris and trash offsite
Valuation:
$15,000
Permit #:
BP-2020-001113
Status:
issued
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Kitchen renovation compliant with 780cmr and brookline zoning by laws
Valuation:
$16,000
Permit #:
BP-2021-000851
Status:
issued
Fee:
$180
Permit Type:
N/A
Building Type:
N/A
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Diamond Remodeling Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Diamond Remodeling License info
Verified License
| License # | 199376 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 11-21-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Diamond Remodeling at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Diamond Remodeling Employees
RM
Robert K Mahar
Manager
RM
Robert Mahar
Owner