Updated: Sep 07, 2025
Location and Projects
Headquarters Address
142 ALLEN ST, East Longmeadow, MA, 01028
Local address
East Longmeadow, MA, 01028
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De Blok Heating and Cooling
De Blok Heating and Cooling, (Employee: Mark De Blok) holds a Heating, Piping & Cooling Limited Contractor license and 1 other license according to the Connecticut license board.
Their BuildZoom score of 93 ranks in the top 27% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring De Blok Heating and Cooling, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
De Blok Heating and Cooling Contact Information
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Building Permits by De Blok Heating and Cooling
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior renovation for new dental office westwalk ortho group to replace t-mobile
Valuation:
$215,000
Permit #:
BLD-2022-00347
Status:
complete
Fee:
$3,496
Permit Type:
N/A
Building Type:
N/A
Replace thermostat replace diffusers
Valuation:
N/A
Permit #:
BLD-2022-00349
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Move/replace approximately 20 of baseboard on existing boiler
Valuation:
$2,395
Permit #:
19-20-0753
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install duct work for the existing roof top units
Valuation:
$13,000
Permit #:
16242
Status:
issued
Fee:
N/A
Permit Type:
HVAC:subcontract - c
Building Type:
Commercial
New hot air furnace and gas line
Valuation:
$7,200
Permit #:
19-77M
Status:
expired
Fee:
$103
Permit Type:
Residential mecha...
Building Type:
N/A
Remove ten water sourceheat pumps and replace with 5 air to air heat pumps 3rd floor only. must meet 2003 imc 2009 iecc along with ct amendments
Valuation:
$40,000
Permit #:
M-16-316
Status:
issued
Fee:
$572
Permit Type:
HVAC
Building Type:
Commercial building
1st floor gas line to wall hung boiler. ibcsl265 must meet 2012 imc iecc nfpa 54 along with amendments. heatloss provided
Valuation:
$10,000
Permit #:
M-17-33
Status:
complete
Fee:
$151
Permit Type:
Gas piping
Building Type:
Commercial building
Installation of 3 heating and cooling systems
Valuation:
$35,000
Permit #:
21-167M
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Oil to gas conversion. installnew gas fired warm air furnace and ductwork
Valuation:
$9,200
Permit #:
M-17-20
Status:
issued
Fee:
$176
Permit Type:
Boiler/furnace re...
Building Type:
Single family
Replace 2 air handlers & two condensing units
Valuation:
$11,800
Permit #:
M-18-238
Status:
final
Fee:
$171
Permit Type:
Air conditioning
Building Type:
N/A
Install new duct work and horizontal condensing furnace 70, 000 gross input 95%
Valuation:
$13,001
Permit #:
20-68M
Status:
expired
Fee:
$237
Permit Type:
Residential mecha...
Building Type:
N/A
Install duct system on existing roof top unit. install heat pump for office area. exhaust for 2 bathrooms and mop closet
Valuation:
N/A
Permit #:
BLD-2018-83915-04
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Removed old rooftop unit install new curb new rooftop
Valuation:
$20,000
Permit #:
20141817
Status:
I
Fee:
N/A
Permit Type:
Commercial mechan...
Building Type:
N/A
Removed old rooftop unit install new curb new rooftop; unit and duct work (1st floor - showroom)
Valuation:
$20,000
Permit #:
20140675
Status:
Complete
Fee:
N/A
Permit Type:
Commercial mechan...
Building Type:
Other storage war...
Replace ductles mini split system one condensing unit
Valuation:
$4,000
Permit #:
20141075
Status:
I
Fee:
N/A
Permit Type:
Commercial mechan...
Building Type:
N/A
No Description Available
Valuation:
$9,000
Permit #:
M-17-43
Status:
complete
Fee:
$155
Permit Type:
Commercial apts ...
Building Type:
Business
Replace ductles mini split system one condensing unit; two indoor wall hung units
Valuation:
$4,000
Permit #:
20140964
Status:
Complete
Fee:
N/A
Permit Type:
Commercial mechan...
Building Type:
Other storage war...
20140675-m000
Valuation:
N/A
Permit #:
MISC-MEC-14-128802
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
20140964-m000
Valuation:
N/A
Permit #:
MISC-MEC-14-129239
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new gas furnace and cooling coil with duct work
Valuation:
$10,600
Permit #:
H-091123
Status:
complete
Fee:
$160
Permit Type:
HVAC
Building Type:
N/A
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De Blok Heating and Cooling Reviews
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De Blok Heating and Cooling License info
License Not Verified
| License # | HTG.0390578-D1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Limited Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of De Blok Heating and Cooling with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
License Not Required
| Status | Not Required |
- BuildZoom verified in September, 2019 that this contractor does not need a license to be a contractor in Connecticut.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
13
Permits
- Building permit records show that De Blok Heating and Cooling has worked on 13 permitted projects.
De Blok Heating and Cooling Employees
MB
Mark De Blok