Updated: May 30, 2026
Location and Projects
Address
590 WINTERGREEN AVE, Hamden, CT, 06511
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Douglas M Dupuis HVAC/Mechanical Contractor
Douglas M Dupuis, 590 Wintergreen Ave, Hamden, CT (Employee: Douglas Dupuis) holds a Heating, Piping & Cooling Unlimited Contractor license according to the Connecticut license board.
Their BuildZoom score of 97 ranks in the top 18% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Douglas M Dupuis, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Douglas M Dupuis Contact Information
Phone Number: (203) 774-8015
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Address: 590 WINTERGREEN AVE, Hamden, CT 06511
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Douglas M Dupuis Hamden
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Douglas M Dupuis has a BuildZoom score of 97, which places them above 82% of 12,093 contractors in Connecticut.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Douglas M Dupuis has worked on at least
2.0 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
|
1 project
|
$5k-$20k |
|
1 project
|
$250k-$500k |
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.
Major interior renovations for fema compliance/2nd story additions and alterations/new entry with roof deck. **amend permit for interior renovations for 1st floor.**amend for deck addition**
Valuation:
$400,000
Permit #:
BLD-2021-00114
Status:
complete
Fee:
$4,104
Permit Type:
N/A
Building Type:
N/A
Replace existing warm air heating/cooling system/add ductwork goodman 96% 2 stage 80, 000btu goodman 2.5 ton 13 seer condenser goodman 2.5 ton horizontal coil 5 supplies 1 return above garage area 4 supplies 1 return other area outside garage
Valuation:
$12,000
Permit #:
M-20-22
Status:
issued
Fee:
$185
Permit Type:
Mechanical - r
Building Type:
Single family
Furnace and air conditioning replacement- icp 60k btu natural gas 95% furnace with 2 ton coil & condenser
Valuation:
N/A
Permit #:
56886
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Swap out oil warm air furnace to gas 95% efficient heil 100, 000 btu furnace with ameristar 3 ton condenser. new gas piping to range and furnace
Valuation:
N/A
Permit #:
50949
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 96% 2 stage furnace with 16 seer air conditioning coil and condenser 2.5 ton in basement with ductwork 2 zones- for first floor and second floor
Valuation:
$16,800
Permit #:
M-20-221
Status:
complete
Fee:
N/A
Permit Type:
Replacement
Building Type:
Single family
New 96% 2 stage furnace with 16 seer ac coil and condenser 2.5 ton in basement with ductwork 2 zones- for first floor and second floor
Valuation:
$16,800
Permit #:
M-20-221
Status:
Complete
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Install 2 1/2 ton air handler in attic with insulated duct work and central return with filter grill. install 2 1/2 ton condensor
Valuation:
$7,000
Permit #:
BLD-2021-00534
Status:
complete
Fee:
$114
Permit Type:
N/A
Building Type:
N/A
Oil to gas conversion replace furance run gas line from meter to furnace
Valuation:
N/A
Permit #:
52719
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New gas lines 85-90 of gas line. gas line running from meter to basement + upstairs to supply furnaces
Valuation:
$1
Permit #:
G-20-189
Status:
issued
Fee:
N/A
Permit Type:
Other (specify in...
Building Type:
Single family
Replace existing furnace with goodman 96% 2 stage 80k btu gas furnace-with goodamn 2.5 ton coil & 2.5 ton condenser 13 seer partial ductwork
Valuation:
$4,250
Permit #:
M-19-402
Status:
issued
Fee:
$63
Permit Type:
Mechanical - r
Building Type:
Single family
Install 95% 85k rheem gas furnace with 3.5 ton coil and 16 seer condenser and ductwork
Valuation:
N/A
Permit #:
BLD-2022-00228
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install granby oil furnace 80k btu with 2.5ton tempstar 13 seer air conditioning condenser & 2.5 ton coil + all fuel chimney
Valuation:
$11,000
Permit #:
M-19-228
Status:
issued
Fee:
N/A
Permit Type:
Furnace boiler r...
Building Type:
Single family
Replace oil tank. replace boiler
Valuation:
$8,395
Permit #:
M-24-184
Status:
issued
Fee:
N/A
Permit Type:
Furnace boiler r...
Building Type:
Single family
Installation of 2 hot air furnaces and 2 air conditioning units with ductwork for each system
Valuation:
N/A
Permit #:
BLD-2021-00117
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install champion gas furnace 95% 80k air conditioning 2.5 ton 13 seer condenser/coil ductwork
Valuation:
$7,950
Permit #:
18782
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace re...
Building Type:
Single family
3 section boiler replacement crown oil fired install 3 baseboards
Valuation:
$10,000
Permit #:
M-21-304
Status:
complete
Fee:
N/A
Permit Type:
Mechanical: new b...
Building Type:
Single family
Replace existing air conditioning handler with furnace with 120k furnace 96% natural gas with 5 ton coil/install duct work
Valuation:
N/A
Permit #:
BLD-2019-85648-02
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
80,000 btu heil 96 % furnace 2.5 ton neil a/c systenm. m nomack
Valuation:
$7,500
Permit #:
M-19-225
Status:
complete
Fee:
$262
Permit Type:
Mechanical AC/Hea...
Building Type:
Single Family
Install new gas line to existing mechanical
Valuation:
$1,000
Permit #:
11876
Status:
complete
Fee:
N/A
Permit Type:
New installation
Building Type:
Single family
Install 90% hot air gas fired furnace in basement for 1st floor and install gas fired hot air furnace with b-vent thru roof in attic for 2nd floor apartment - r velez inspector: r velez 203-946-7595 certificate of approval
Valuation:
$12,000
Permit #:
M-16-438
Status:
issued
Fee:
$413
Permit Type:
Mechanical-heating
Building Type:
Two family
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Douglas M Dupuis Reviews
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Verified License
BuildZoom confirmed this contractor's license
Douglas M Dupuis License info
Verified License
| License # | HTG.0394636-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Douglas M Dupuis at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
96
Permits
- Building permit records show that Douglas M Dupuis has worked on 96 permitted projects.
Douglas M Dupuis Employees
DD
Douglas Dupuis