Updated: Nov 21, 2025
Location and Projects
Address
PO BOX 430, Mendon, MA, 01756
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J.J. Mechanical Services
Their BuildZoom score of 0 does not rank in the top 50% of Massachusetts contractors.
If you are thinking of hiring J.J. Mechanical Services, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
J.J. Mechanical Services Contact Information
Phone Number: (508) 478-4000
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Address: PO BOX 430, Mendon, MA 01756
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J.J. Mechanical Services Mendon
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are J.J. Mechanical Services, click “This is My Business” to update your information.
Activity
|
1 project
|
2025 |
|
6 projects
|
2024 |
Our building permit records indicate that J.J. Mechanical Services has worked on at least
7.0 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.
Experience
|
7 projects
|
HVAC projects |
|
5 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that J.J. Mechanical Services mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
The typical size of their permits is approximately $46,100. 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 J.J. Mechanical Services
This is a sample of this contractor's permits. Click here to access their complete permit history.
Install 2 gas boilers 2 indirect storage tanks for hot water 6 zones hydro air with air conditioning and radiant heat and 6 bathroom exhausts
Valuation:
$150,000
Permit #:
22020062
Status:
filed
Fee:
$3,000
Permit Type:
N/A
Building Type:
N/A
Installing 3 mini split heat pumps and 2 zones of air conditioning for 1st and 2nd floor compliant with 780 cmr and brookline zoning by laws
Valuation:
$52,200
Permit #:
MP-2024-000062
Status:
issued
Fee:
$1,060
Permit Type:
N/A
Building Type:
N/A
Addition heat and air conditioning to renovated home. compliant with 780 cmr and brookline zoning by laws
Valuation:
$100,000
Permit #:
MP-2024-000454
Status:
issued
Fee:
$2,000
Permit Type:
N/A
Building Type:
N/A
New gas furnace with air conditioning for whole house. sq ft is under 10 000 sq ft. new work. work to be completed: hvac
Valuation:
$19,800
Permit #:
BLD243143
Status:
complete
Fee:
$297
Permit Type:
N/A
Building Type:
N/A
Adding new heat and air conditioning ducted system to 2nd floor compliant with 780 cmr and brookline zoning by laws
Valuation:
$24,700
Permit #:
MP-2024-000220
Status:
issued
Fee:
$500
Permit Type:
N/A
Building Type:
N/A
Install 2 zones of hydro air using wall hung boiler; 1st and 2nd fl. bathroom exhaust and kitchen exhaust
Valuation:
$60,000
Permit #:
22030063
Status:
filed
Fee:
$1,200
Permit Type:
N/A
Building Type:
N/A
Change out furnace and kitchen hood. compliant with 780 cmr and brookline zoning by laws
Valuation:
$16,700
Permit #:
MP-2022-000102
Status:
complete
Fee:
$340
Permit Type:
N/A
Building Type:
N/A
Installation of new gas boiler with two hydroair air handlers with air conditioning compliant with 780 cmr and brookline zoning by laws
Valuation:
$60,000
Permit #:
MP-2023-000359
Status:
complete
Fee:
$1,200
Permit Type:
N/A
Building Type:
N/A
2 zones gas furances with air conditioning, kit exhaust bathroom exhausts
Valuation:
N/A
Permit #:
SM-2024-00039
Status:
issued
Fee:
$257
Permit Type:
N/A
Building Type:
N/A
New boiler in addition and new gas boiler with storage tank new air conditioning above garage with radiant heat floor
Valuation:
$35,000
Permit #:
20010759
Status:
filed
Fee:
$700
Permit Type:
N/A
Building Type:
N/A
New wall mount boiler with 6 hydro air handlers and 3 bathroom exhaust fans
Valuation:
$55,000
Permit #:
20100683
Status:
complete
Fee:
$1,100
Permit Type:
N/A
Building Type:
N/A
New gas boiler with hydro air with air conditioning replace kitchen hood exhaust
Valuation:
$25,000
Permit #:
20010758
Status:
filed
Fee:
$500
Permit Type:
N/A
Building Type:
N/A
New 95% gas furnace with air conditioning in addition
Valuation:
$12,000
Permit #:
21070393
Status:
filed
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Install 2 high velocity air conditioning systems
Valuation:
$35,000
Permit #:
MP-2019-000231
Status:
complete
Fee:
$700
Permit Type:
N/A
Building Type:
N/A
In basement area: move duct work higher to get more head space in basement room. addition hru ventilator to hvac system and vent out bathroom
Valuation:
$7,000
Permit #:
18100951
Status:
filed
Fee:
$140
Permit Type:
N/A
Building Type:
N/A
Install 3 new hydro air systems base board heat & gas boiler
Valuation:
$27,000
Permit #:
19040078
Status:
filed
Fee:
$540
Permit Type:
N/A
Building Type:
N/A
3 zones hydro air with veissmann gas fired boiler
Valuation:
$33,500
Permit #:
19020408
Status:
complete
Fee:
$680
Permit Type:
N/A
Building Type:
N/A
3 hydro-air system 1 vissman boiler 3 bathroom exhaust 1 dryer vent
Valuation:
$20,000
Permit #:
18010145
Status:
complete
Fee:
$400
Permit Type:
N/A
Building Type:
N/A
Install new gas boiler w 3 hydro air systems
Valuation:
$25,000
Permit #:
18040503
Status:
complete
Fee:
$500
Permit Type:
N/A
Building Type:
N/A
Addition ductwork to existing system
Valuation:
$1,000
Permit #:
BLD180229
Status:
IN PROGRESS
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
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J.J. Mechanical Services License info
License Not Verified
| License # | 9650 |
| Status | Active |
| City | Newton |
| Type | Sheetmetal Contractor |
- When BuildZoom last verified this license, it had an expiration date of January, 2023. Check the current license status of J.J. Mechanical Services with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 9181 |
| Status | Inactive |
| City | Newton |
| Type | Sheetmetal 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 J.J. Mechanical Services at the City of Newton Massachusetts.
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 J.J. Mechanical Services, click “This is My Business” to update your information.
30
Permits
- Building permit records show that J.J. Mechanical Services has worked on 30 permitted projects.
J.J. Mechanical Services Employees
JG
Joseph Guelli
Owner