Updated: May 12, 2026
Location and Projects
Address
128 COOLIDGE HILL RD, Watertown, MA, 02472
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G.M. Walsh Plumbing & Heating
G.M. Walsh Plumbing & Heating, 128 Coolidge Hill Rd, Watertown, MA (Owned by: Gregory Walsh) holds a Home Improvement Contractor license and 6 other licenses according to the Massachusetts license board.
Their BuildZoom score of 104 ranks in the top 9% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring G.M. Walsh Plumbing & Heating, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
G.M. Walsh Plumbing & Heating Contact Information
Phone Number: (617) 719-9703
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Address: 128 COOLIDGE HILL RD, Watertown, MA 02472
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G.M. Walsh Plumbing & Heating Watertown
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
G.M. Walsh Plumbing & Heating has a BuildZoom score of 104, which places them above 91% of 139,240 contractors in Massachusetts.
Activity
|
3 projects
|
2025 |
|
6 projects
|
2024 |
|
12 projects
|
2023 |
Our building permit records indicate that G.M. Walsh Plumbing & Heating has worked on at least
21.0 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
|
3 projects
|
Home Additions |
|
3 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that G.M. Walsh Plumbing & Heating mostly works on
hvac project
and home addition
projects.
Pricing
|
17 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
The typical size of their permits is approximately $2,750. 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.
Building Permits by G.M. Walsh Plumbing & Heating
This is a sample of this contractor's permits. Click here to access their complete permit history.
Renovate the basement plumbing replace the underground sewage piping in the basement. addition a new half bathroom and laundry connection in the basement. relocate waste and water piping in the basement to allow steel beams to be installed
Valuation:
$28,000
Permit #:
PP-2025-000501
Status:
issued
Fee:
$560
Permit Type:
N/A
Building Type:
N/A
Renovate the plumbing system in the house including new water piping in the basement laundry connection 1st floor powder room 2nd floor bathroom and 3rd floor bathroom. replace the water heater
Valuation:
$50,000
Permit #:
PP-2023-000088
Status:
complete
Fee:
$1,000
Permit Type:
N/A
Building Type:
N/A
Renovate the plumbing system in the house including new water piping in the basement laundry connection 1st floor powder room 2nd floor bathroom and 3rd floor bathroom. replace the water heater
Valuation:
$50,000
Permit #:
PP-2023-000088
Status:
complete
Fee:
$1,000
Permit Type:
N/A
Building Type:
N/A
Begin work under alter 1407116 under review. all work in full compliance with alter plans filed and in full compliance with 780 cmr, 527 cmr 521 cmr and filed nfpa 241 plan. all fee paid under alter 1407116
Valuation:
$1,000
Permit #:
SF1420920
Status:
filed
Fee:
$30
Permit Type:
N/A
Building Type:
Commercial
Renovate the existing kitchen bathroom laundry addition a 2nd bathroom 17 lakeville rd is the secondary address the work will be performed at 33 unit 2 lakeville rd
Valuation:
$40,000
Permit #:
PL1543520
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
1-3fam
Supply and install gas piping for a temporary furnace a new heating boiler a new gas range and a dryer in the basement
Valuation:
$5,000
Permit #:
GP-2023-000069
Status:
complete
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Supply and install gas piping for a temporary furnace a new heating boiler a new gas range and a dryer in the basement
Valuation:
$5,000
Permit #:
GP-2023-000069
Status:
complete
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Renovate the existing kitchen install two new kitchen sinks with disposals one new dishwasher and an ice maker
Valuation:
$15,000
Permit #:
PL1577345
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
1-2fam
Remodel first floor bathroom and kitchen. addition shower to second floor half bathroom. install laundry connection in basement
Valuation:
$5,000
Permit #:
P-22-0397
Status:
issued
Fee:
$235
Permit Type:
Renovation
Building Type:
N/A
Renovate the kitchen remove and re-install 1st floor powder room toilet and sink (for new flooring to be installed)
Valuation:
$5,000
Permit #:
P-22-0047
Status:
complete
Fee:
$130
Permit Type:
Renovation
Building Type:
N/A
Renovate the kitchen remove and re-install 1st floor powder room toilet and sink (for new flooring to be installed)
Valuation:
$5,000
Permit #:
P-22-0047
Status:
complete
Fee:
$130
Permit Type:
Renovation
Building Type:
N/A
Capp of the existing gas line to the gas range 17 lakeville rd is the secondary address the work will be at 33 lakeville rd unit #2
Valuation:
$1,000
Permit #:
G1543523
Status:
complete
Fee:
$25
Permit Type:
N/A
Building Type:
1-3fam
Remodel kitchen install a new sink disposal dishwasher and ice maker connection
Valuation:
$4,000
Permit #:
P-23-0105
Status:
complete
Fee:
$130
Permit Type:
N/A
Building Type:
Residential
Complete renovation of the plumbing system in the basement 1st floor and 2nd floor
Valuation:
$60,000
Permit #:
PL1304545
Status:
complete
Fee:
$130
Permit Type:
N/A
Building Type:
1-2fam
Renovate the existing kitchen replace four toilets and one lav sink. the condominium unit the work is being done is 8a
Valuation:
$10,000
Permit #:
PL1543651
Status:
filed
Fee:
$65
Permit Type:
N/A
Building Type:
Multi
Remodel the existing kitchen replaced the water heater addition two bathrooms in a new 2nd floor addition
Valuation:
$25,000
Permit #:
P-23-0542
Status:
complete
Fee:
$260
Permit Type:
N/A
Building Type:
Residential
Bathroom remodel
Valuation:
$1
Permit #:
25-43P
Status:
expired
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Installation of a harman p34i pellet stove insert. tested by omni testing labs report no. 135-s-25-6.2 0135pn025s f19-531. astm e1509-1012 ulc s628-93 (um)84-hud
Valuation:
$6,431
Permit #:
SF1546103
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
1-2fam
Remove and re-locate the existing gas piping for the kitchen stove install a new stove
Valuation:
$2,000
Permit #:
G1577350
Status:
filed
Fee:
$25
Permit Type:
N/A
Building Type:
1-2fam
Supply and install gas piping from a new service meter to a tankless water heater
Valuation:
$2,000
Permit #:
G1377937
Status:
filed
Fee:
$43
Permit Type:
N/A
Building Type:
1-2fam
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Verified License
BuildZoom confirmed this contractor's license
G.M. Walsh Plumbing & Heating License info
Verified License
| License # | 186945 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 06-28-2025 |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for G.M. Walsh Plumbing & Heating 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-098332 |
| 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 G.M. Walsh Plumbing & Heating 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 # | 9777 |
| Status | Active |
| State | Massachusetts |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of G.M. Walsh Plumbing & Heating with the Commonwealth of Massachusetts E-Licensing Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 92015 |
| Status | Inactive |
| City | Newton |
| Type | Building Contractor |
- According to the City of Newton Massachusetts, 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 G.M. Walsh Plumbing & Heating at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 9777 |
| Status | Inactive |
| City | Newton |
| Type | Plumbing Contractor |
- According to the City of Newton Massachusetts, 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 G.M. Walsh Plumbing & Heating at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 9777 |
| Status | Inactive |
| City | Newton |
| Type | Heater Contractor |
- According to the City of Newton Massachusetts, 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 G.M. Walsh Plumbing & Heating at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 92015 |
| Status | Inactive |
| City | Newton |
| Type | Residential Builder |
- According to the City of Newton Massachusetts, 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 G.M. Walsh Plumbing & Heating at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
240
Permits
- Building permit records show that G.M. Walsh Plumbing & Heating has worked on 240 permitted projects.
G.M. Walsh Plumbing & Heating Employees
GW
Gregory M M Walsh
Owner
GW
Gregory M Walsh
Owner
GW
Gregory M. Walsh
GW
Gregory Walsh
Owner