Updated: May 22, 2026
Location and Projects
Address
Lexington, MA, 02420
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Douglas W Lamm Construction
Douglas W Lamm, Lexington, MA holds a Building Licenses, Cssl Ic Insulation Contractor license and 1 other license according to the Massachusetts license board.
Their BuildZoom score of 99 ranks in the top 15% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Douglas W Lamm, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Douglas W Lamm Services
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Douglas W Lamm Contact Information
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Douglas W Lamm Lexington
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Douglas W Lamm has a BuildZoom score of 99, which places them above 85% of 139,240 contractors in Massachusetts.
Activity
|
4 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Douglas W Lamm has worked on at least
6.0 projects over the past 3 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
|
5 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $198,200. This graph shows the distribution of these job values.
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.
Minimally invasive retrofit insulation with pour foam
Valuation:
$340,000
Permit #:
SF1585446
Status:
complete
Fee:
$3,420
Permit Type:
N/A
Building Type:
Multi
Minimally invasive retrofit insulation with pour foam
Valuation:
$205,300
Permit #:
SF1599294
Status:
filed
Fee:
$2,080
Permit Type:
N/A
Building Type:
Multi
Minimally invasive retrofit insulation with pour foam
Valuation:
$205,300
Permit #:
SF1599284
Status:
filed
Fee:
$2,080
Permit Type:
N/A
Building Type:
Multi
Install polyurethane pour foam in exterior walls
Valuation:
$135,200
Permit #:
SF1463316
Status:
complete
Fee:
$1,380
Permit Type:
N/A
Building Type:
Multi
Minimally invasive retrofit insulation
Valuation:
$191,100
Permit #:
SF1621617
Status:
filed
Fee:
$1,940
Permit Type:
N/A
Building Type:
Multi
Install polyurethane pour foam in exterior wall insulation
Valuation:
$115,450
Permit #:
SF1463284
Status:
complete
Fee:
$1,180
Permit Type:
N/A
Building Type:
Multi
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Douglas W Lamm Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Douglas W Lamm License info
Verified License
| License # | CSSL-106214 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Cssl Ic Insulation Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Douglas W Lamm at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CSSL-106214 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor Specialty |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Douglas W Lamm at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
6
Permits
- Building permit records show that Douglas W Lamm has worked on 6 permitted projects.