Updated: Jun 05, 2026
Location and Projects
Address
98 COMMERCE ST, Glastonbury, CT, 06033
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James B Grigas HVAC/Mechanical Contractor
James B Grigas, 98 Commerce St, Glastonbury, CT (Employee: James Grigas) holds a Heating, Piping & Cooling Unlimited Contractor license according to the Connecticut license board.
Their BuildZoom score of 100 ranks in the top 13% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring James B Grigas, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
James B Grigas Contact Information
Address: 98 COMMERCE ST, Glastonbury, CT 06033
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James B Grigas Glastonbury
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
James B Grigas has a BuildZoom score of 100, which places them above 87% of 12,093 contractors in Connecticut.
Activity
|
2 projects
|
2025 |
|
2 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that James B Grigas has worked on at least
7.0 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
|
Mechanical projects |
|
4 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that James B Grigas mostly works on
mechanical project
and hvac project
projects.
Pricing
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $129,000. 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.
Relocated kitchen exhaust ductwork demolish existing misc ductwork. install new air handling unit. clean newly installed ductwork. testing and balancing of new ahu supply ductwork
Valuation:
$204,375
Permit #:
MISC-MEC-24-000446
Status:
issued
Fee:
$6,543
Permit Type:
Alteration
Building Type:
N/A
Removal relocation reinstall of fuel oil tank and associated lines. removal re-install of generator flue piping. removal of condensing units and piping in preparation of garage demolition
Valuation:
$650,000
Permit #:
MISC-MEC-22-000067
Status:
complete
Fee:
$19,739
Permit Type:
Alteration
Building Type:
Commercial
3rd floor shell space is to be converted into a new bi-plan hybrid or. work will consist of installing new ductwork connecting to an existing system. adding (2) air terminal units and new ceiling diffuser system. new heating pipes connecting to exiting mains that serve new terminal boxes
Valuation:
$322,000
Permit #:
MISC-MEC-22-000107
Status:
issued
Fee:
$9,814
Permit Type:
Alteration
Building Type:
Commercial
Demolish of existing ductwork and piping. install (3) new fan coil units and associated ductwork to included rgds piping insulation and controls. three feet of new fin tube radiation. ref: com-alt-22-000253
Valuation:
$120,000
Permit #:
MISC-MEC-22-000273
Status:
complete
Fee:
$3,701
Permit Type:
Alteration
Building Type:
Commercial
Replace leaking underground steam and steam condensate piping
Valuation:
$277,400
Permit #:
MISC-MEC-23-000159
Status:
complete
Fee:
$8,482
Permit Type:
Repair
Building Type:
Commercial
Remove existing exhaust fan dismantle on roof for demolition. replace with new fan and associated ductwork. no crane required. bathroom exhaust
Valuation:
$76,600
Permit #:
MISC-MEC-23-000186
Status:
issued
Fee:
$2,400
Permit Type:
Replacement
Building Type:
Commercial
Install new air handling unit duct work hot water piping controls etc. to support the new winchester advanced lung disease on the 3rd floor
Valuation:
$1,789,000
Permit #:
M-20-230
Status:
complete
Fee:
N/A
Permit Type:
New installation
Building Type:
Wellness center
Provide new ductwork & hot water piping for renovated space on the 1st floor
Valuation:
$244,000
Permit #:
M-21-87
Status:
complete
Fee:
N/A
Permit Type:
Replacement
Building Type:
Wellness center
Replace the existing boilers and pumps, domestic hot water heater. install new piping and breeching for each. upgrade the temperature controls. as per drawings project bo18-14 dated 1/22/2018 must meet 2016 state building and fire codes along with amemendments.
Valuation:
$534,000
Permit #:
M-18-196
Status:
issued
Fee:
N/A
Permit Type:
Heating
Building Type:
Public Utility Bu...
Hvac per plans and specifications for building addition of storage locker rooms offices and alterations for (3) new operating rooms
Valuation:
$3,640,000
Permit #:
M-19-458
Status:
issued
Fee:
$50,971
Permit Type:
HVAC
Building Type:
Commercial building
Hvac per plans and specifications for building addition of storage locker rooms offices and alterations for (3) new operating rooms
Valuation:
$3,640,000
Permit #:
TM-19-458
Status:
filed
Fee:
$50,971
Permit Type:
HVAC
Building Type:
Commercial building
Comprehensive breast suite modify ductwork. addition 3 new vav boxes with hydronic reheat. rgds controls insulation testing and balancing. per plans and specifications. dated 12/19/18 must meet 2018 state building and fire code along with amendments
Valuation:
$59,000
Permit #:
M-19-27
Status:
issued
Fee:
$837
Permit Type:
HVAC
Building Type:
Commercial building
Replace the existing oil fired boiler with a new hb smith 19he 5 sectional boiler of equal capacity. install a new combustion damper in the existing louvered opening and interlock with the burner. load cal provided. must meet 2018 state building code along with amendments
Valuation:
$27,255
Permit #:
M-19-43
Status:
complete
Fee:
N/A
Permit Type:
Oil burner/oil bo...
Building Type:
Public utility bu...
Remove and replace hvac registers. install new transfer duct. testing and balancing per plans
Valuation:
N/A
Permit #:
BLD-2024-02545
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of several lab spaces to include new round ductwork stainless steel duct humidifiers low pressure steam piping serving humidifiers lab equipment exhaust
Valuation:
$442,000
Permit #:
MP-2019-66
Status:
Application
Fee:
$7,246
Permit Type:
HVAC
Building Type:
N/A
Renovation of several lab spaces to include new round ductwork stainless steel duct humidifiers low pressure steam piping serving humidifiers lab equipment exhaust
Valuation:
$442,000
Permit #:
MP-2019-65
Status:
Application
Fee:
$7,246
Permit Type:
HVAC
Building Type:
N/A
Replace (2) cooling towers located on roof and replace condenser water piping from cooling towers to the mechanical equipment room
Valuation:
$457,000
Permit #:
18274
Status:
complete
Fee:
N/A
Permit Type:
HVAC:subcontract - c
Building Type:
Commercial
Install three (3) 7.5 ton gas/electric rooftops with duct distribution.extend 2 psi natural gas piping to the new rooftops
Valuation:
$82,470
Permit #:
20936
Status:
complete
Fee:
N/A
Permit Type:
HVAC:air conditio...
Building Type:
Commercial
Install a 3.5 ton split system heat pump with distribution ductwork
Valuation:
$34,000
Permit #:
MISC-MEC-23-000387
Status:
issued
Fee:
$1,099
Permit Type:
Alteration
Building Type:
Commercial
Provide and install 400 000 btu/hr natural gas heater for covid 19 testing site. install gas piping from existing meter
Valuation:
$22,000
Permit #:
BLD-2021-00019
Status:
issued
Fee:
$358
Permit Type:
N/A
Building Type:
N/A
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James B Grigas Reviews
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Verified License
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James B Grigas License info
Verified License
| License # | HTG.0303307-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for James B Grigas at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
37
Permits
- Building permit records show that James B Grigas has worked on 37 permitted projects.
James B Grigas Employees
JG
James Grigas