Updated: Nov 11, 2025
Location and Projects
Address
6245 CLARK CENTER ROAD, West Yarmouth, MA, 02673
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David J. Koss Architect
David J. Koss, 6245 Clark Center Rd, W Yarmouth, MA (Owned by: David M Davenport) holds a Plumber license and 5 other licenses according to the Massachusetts license board.
Their BuildZoom score of 96 ranks in the top 20% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring David J. Koss, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
David J. Koss Services
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David J. Koss Contact Information
Address: 6245 CLARK CENTER ROAD, W Yarmouth, MA 02673
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David J. Koss W Yarmouth
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
David J. Koss has a BuildZoom score of 96, which places them above 80% of 139,240 contractors in Massachusetts.
Activity
|
1 project
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that David J. Koss has worked on at least
4.0 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
|
2 projects
|
< $5k |
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.
Washer machine hook-up
Valuation:
N/A
Permit #:
BLDP-23-003886
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install gas boiler indirect water heater
Valuation:
$1,000
Permit #:
PP-2023-0880
Status:
complete
Fee:
$73
Permit Type:
New
Building Type:
N/A
Rough plumbing
Valuation:
$3,000
Permit #:
PP-23-94
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacement wh
Valuation:
N/A
Permit #:
BLDP-23-004736
Status:
final
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Replace plumbing fixtures in bathroom
Valuation:
N/A
Permit #:
BLDP-22-003614
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Run gas main to boiler
Valuation:
$400
Permit #:
GP-2023-0881
Status:
complete
Fee:
$62
Permit Type:
New
Building Type:
N/A
Rough and replacement
Valuation:
N/A
Permit #:
BLDP-23-003137
Status:
issued
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
Replace leaking roof shingles
Valuation:
$4,500
Permit #:
EXB-24-505
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace fixtures
Valuation:
N/A
Permit #:
BLDP-23-003328
Status:
issued
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Rough gas
Valuation:
$300
Permit #:
BLDG-23-003487
Status:
issued
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Replace fixtures
Valuation:
N/A
Permit #:
BLDP-21-005552
Status:
issued
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Gas test
Valuation:
N/A
Permit #:
BLDG-21-005741
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Test
Valuation:
N/A
Permit #:
BLDG-19-003047
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Gas hanging unit
Valuation:
$2,000
Permit #:
BLDG-20-004673
Status:
issued
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Boiler replacement
Valuation:
$500
Permit #:
BLDG-20-000415
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Gas generator
Valuation:
N/A
Permit #:
BLDG-19-004021
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Indirect tank
Valuation:
N/A
Permit #:
BLDP-20-000416
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Gas fireplace
Valuation:
$500
Permit #:
BLDG-19-005070
Status:
complete
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Ks & dw
Valuation:
N/A
Permit #:
BLDP-19-006367
Status:
complete
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
New plumbing system
Valuation:
N/A
Permit #:
BLDP-18-003730
Status:
complete
Fee:
$250
Permit Type:
N/A
Building Type:
N/A
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David J. Koss Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
David J. Koss License info
License Not Verified
| License # | 10377 |
| Status | Active |
| State | Massachusetts |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of May, 2024. Check the current license status of David J. Koss with the Commonwealth of Massachusetts E-Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| State | Florida |
| Type | Architect Business Information |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of David J. Koss with the Florida Department of Business & Professional Regulation
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AR0012123 |
| Status | Active |
| State | Florida |
| Type | Architect |
- BuildZoom verified this license was active as of June 2025.
Verify this license's status for David J. Koss at the Florida Department of Business & Professional Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 19754 |
| Status | Active |
| State | Massachusetts |
- When BuildZoom last verified this license, it had an expiration date of May, 2016. Check the current license status of David J. Koss with the Massachusetts Department of Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 10929 |
| Status | Inactive |
| State | Massachusetts |
| Type | Sheet Metal |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 David J. Koss at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 10929 |
| Status | Inactive |
| State | Massachusetts |
| Type | Architect |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 David J. Koss at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
56
Permits
- Building permit records show that David J. Koss has worked on 56 permitted projects.
David J. Koss Employees
DM
Davenport, David M
DK
David J. Koss
DD
David M Davenport
Owner