Updated: Nov 11, 2025
Location and Projects
Address
Rockland, MA, 02370
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Keith Mattes Plumber
Their BuildZoom score of 0 does not rank in the top 50% of Massachusetts contractors.
If you are thinking of hiring Keith Mattes, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Keith Mattes Services
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Keith Mattes Contact Information
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Keith Mattes Rockland
Quality
Alert*
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We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Keith Mattes, click “This is My Business” to update your information.
Activity
|
5 projects
|
2025 |
|
3 projects
|
2024 |
|
22 projects
|
2023 |
Our building permit records indicate that Keith Mattes has worked on at least
30.0 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.
Experience
|
5 projects
|
New Constructions |
|
28 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Keith Mattes mostly works on
plumbing project
and new construction
projects.
Pricing
|
11 projects
|
< $5k |
|
7 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
2 projects
|
$1mil+ |
The typical size of their permits is approximately $3,000. 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.
Installation of plumbing for 30unit apartment building
Valuation:
$500,000
Permit #:
P-25-0055
Status:
issued
Fee:
$6,150
Permit Type:
New
Building Type:
N/A
Installation of plumbing for 92 unit multi residential building
Valuation:
$1,900,000
Permit #:
P-25-0530
Status:
issued
Fee:
$19,250
Permit Type:
New
Building Type:
N/A
Make safe of existing fixtures being removed and installation of plumbing for new fixtures being installed in rennovation
Valuation:
$80,000
Permit #:
P-25-0075
Status:
complete
Fee:
$735
Permit Type:
Renovation
Building Type:
N/A
Installation of plumbing for a new hotel consisting of 95 rooms and a pool
Valuation:
$1,250,000
Permit #:
PP-24-198
Status:
issued
Fee:
N/A
Permit Type:
Commercial- new a...
Building Type:
N/A
Installation of gas to 1 erv on roof and 2 lochinvar hot water makers
Valuation:
$200,000
Permit #:
G-25-0531
Status:
issued
Fee:
$2,250
Permit Type:
New
Building Type:
N/A
Installation of new gas line to separate rmv gas from main building and ran to new meter. disconnection
Valuation:
$10,000
Permit #:
G-25-0110
Status:
complete
Fee:
$340
Permit Type:
Renovation
Building Type:
N/A
Installation of gas piping for renovation
Valuation:
$10,000
Permit #:
G-25-0252
Status:
issued
Fee:
$350
Permit Type:
Renovation
Building Type:
N/A
Installation of gas piping for renovation
Valuation:
$10,000
Permit #:
G-25-0251
Status:
issued
Fee:
$350
Permit Type:
Renovation
Building Type:
N/A
Replacement and reinstallation of existing plumbing fixtures
Valuation:
$60,000
Permit #:
PL1480287
Status:
complete
Fee:
$420
Permit Type:
N/A
Building Type:
Commercial
Building 11: 1st flr: 3 dishwashers 3 kitchen sinks 3 lavs 3 shower stalls 3 toilets washing machine connection water heater water piping. 2nd flr: 3 dishwasher 3 kitchen sinks 3 lavs 3 shower stalls 3 toilets water piping
Valuation:
N/A
Permit #:
2021-2575
Status:
complete
Fee:
$591
Permit Type:
B plumbing
Building Type:
N/A
Building 12: 1st flr:2 dishwashers 2 kitchen sinks 2 lavs 2 shower stalls 2 toilets washing machine connection water heater water piping. 2nd flr: 2 dishwasher 2 kitchen sinks 2 lavs 2 shower stalls 2 toilets water piping
Valuation:
N/A
Permit #:
2021-2572
Status:
complete
Fee:
$321
Permit Type:
B plumbing
Building Type:
N/A
Installation of plumbing for 3 1/2-bathroom house with underground plumbing for future bathroom with ejection tank
Valuation:
$20,000
Permit #:
P-23-0590
Status:
complete
Fee:
$415
Permit Type:
New
Building Type:
N/A
Unit 2 a 24 fixtures and unit 2b 22 fixtures installation of plumbing for 2 1/2 bathroom house
Valuation:
N/A
Permit #:
P-22-0836
Status:
complete
Fee:
$618
Permit Type:
New
Building Type:
N/A
Installation of gas piping system for hotel
Valuation:
$80,000
Permit #:
GP-24-152
Status:
issued
Fee:
N/A
Permit Type:
Commercial-new an...
Building Type:
N/A
Building a- bsm: 1st flr: 3 dishwashers floor/area drain 3 kitchen sinks 3 lavs 3 shower stalls 3 toilets washing machine connection water heater. 2nd flr: 3 dishwashers 3 kitchen sinks 3 lavs 3 shower stalls 3 toilets
Valuation:
N/A
Permit #:
2020-0825
Status:
complete
Fee:
$545
Permit Type:
B plumbing
Building Type:
N/A
Installation of plumbing for new townhouse
Valuation:
$20,000
Permit #:
P-23-0408
Status:
final
Fee:
$450
Permit Type:
New
Building Type:
N/A
Installation of plumbing for new townhouse
Valuation:
$20,000
Permit #:
P-23-0406
Status:
final
Fee:
$450
Permit Type:
New
Building Type:
N/A
Installation of plumbing for new townhouse
Valuation:
$20,000
Permit #:
P-23-0404
Status:
final
Fee:
$450
Permit Type:
New
Building Type:
N/A
Installation of gas piping for new townhouse
Valuation:
$5,000
Permit #:
G-23-0409
Status:
final
Fee:
$175
Permit Type:
New
Building Type:
N/A
Installation of gas piping for new townhouse
Valuation:
$5,000
Permit #:
G-23-0405
Status:
final
Fee:
$175
Permit Type:
New
Building Type:
N/A
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Projects
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Keith Mattes License info
License Not Verified
| License # | 15540 |
| 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 Keith Mattes 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
| License # | 27114 |
| Status | Active |
| State | Massachusetts |
- When BuildZoom last verified this license, it had an expiration date of May, 2016. Check the current license status of Keith Mattes 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 # | 11027 |
| 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 Keith Mattes at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Keith Mattes, click “This is My Business” to update your information.
141
Permits
- Building permit records show that Keith Mattes has worked on 141 permitted projects.