Updated: Jun 04, 2026
Location and Projects
Address
P.O. BOX 298, Manchester, CT, 06040
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Mark G Piechowicz HVAC/Mechanical Contractor
Mark G Piechowicz, Manchester, Po Box 298, Manchester, CT (Employee: Mark Piechowicz) holds a Heating, Piping & Cooling Limited Contractor license according to the Connecticut license board.
Their BuildZoom score of 104 ranks in the top 9% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mark G Piechowicz, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mark G Piechowicz Contact Information
Address: P.O. BOX 298, Manchester, CT 06040
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Mark G Piechowicz Manchester
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mark G Piechowicz has a BuildZoom score of 104, which places them above 91% of 12,093 contractors in Connecticut.
Activity
|
2 projects
|
2025 |
|
5 projects
|
2024 |
|
11 projects
|
2023 |
Our building permit records indicate that Mark G Piechowicz has worked on at least
18.0 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
|
16 projects
|
Mechanical projects |
|
11 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Mark G Piechowicz mostly works on
mechanical project
and hvac project
projects.
Pricing
|
3 projects
|
< $5k |
|
10 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
The typical size of their permits is approximately $12,000. 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.
Installation of a trane xr-14 air conditioning system to cool the home. outdoor condenser model 4ttr4025l1000a will be located on the right side of the home. indoor air handler tem6a0b30h21sb will be located in the attic
Valuation:
$16,000
Permit #:
M-22-53
Status:
complete
Fee:
N/A
Permit Type:
Air conditioning
Building Type:
Single family
Installation of a new trane xr-16 air conditioning system to cool the home. the outdoor condenser will be located on the left side of the home. condenser model # 4ttr6036j1000a and indoor air handler model # tem6a0c36h31sb
Valuation:
$16,000
Permit #:
BLD22-00473
Status:
issued
Fee:
$263
Permit Type:
N/A
Building Type:
N/A
Replacement of old electric heating and cooling system with a new propane fired bosch boiler model kbr-28-3 indirect hot water heater (heat flo 40) and bosch heat pump system (outdoor unit model bova-36hdn1-m20g and indoor unit model bva-36wn1-m20)
Valuation:
$26,000
Permit #:
21-22-0070
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacement of existing oil boiler with bosch propane boiler and replacement of existing air conditioning with new trane air conditioning and fujitsu ductless
Valuation:
$35,000
Permit #:
M-23-115
Status:
issued
Fee:
N/A
Permit Type:
HVAC: residential
Building Type:
Single family
Oil to natural gas conversion. installation of new bosch kbr 28-3 condensing boiler with new indirect water heater
Valuation:
$15,000
Permit #:
BLD23-00107
Status:
final
Fee:
$248
Permit Type:
N/A
Building Type:
N/A
Installation of two fujitsu ductless systems to cool the home. model # aoug12lzas1 and aou18rlxfz one on the right side and one on the left side of the home
Valuation:
$12,000
Permit #:
M-22-97
Status:
complete
Fee:
N/A
Permit Type:
Heat pump/mini sp...
Building Type:
Single family
Replacement of old oil-fired furnace with a new gas-fired trane s9x1 furnace with an a. o. smith proline gas-fired water heater. (conversion to natural gas)
Valuation:
$13,000
Permit #:
M-22-30
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Replacement of existing oil-fired boiler with new peerless wbv-e-03-060-w
Valuation:
$12,000
Permit #:
24-25-0471
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Conversion from an oil-fired boiler to a new natural gas fired boiler: bosch kbr-42-3 with schedule 40 gas piping
Valuation:
$15,000
Permit #:
M-22-46
Status:
complete
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Replacement of the old oil furnace with a new thermopride oh6fa072dv$ warm air furnace and replacement of the old air conditioning system with a new trane xr-16 system
Valuation:
$14,000
Permit #:
BLD21-01199
Status:
issued
Fee:
$232
Permit Type:
N/A
Building Type:
N/A
The installation of two fujitsu ductless systems to cool the home. the condensers will be located on the left side of the home and the rear of the home
Valuation:
$12,000
Permit #:
M-21-148
Status:
issued
Fee:
N/A
Permit Type:
Heat pump/mini sp...
Building Type:
Single family
Replacement of existing oil furnace and air conditioning unit with new thermopride oil furnace and trane 14 seer condenser
Valuation:
$13,000
Permit #:
M-23-142
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Installation of (2) fujitsu ductless mini split heat pumps
Valuation:
$27,000
Permit #:
BLD23-00698
Status:
final
Fee:
$433
Permit Type:
N/A
Building Type:
N/A
Emergency replacement of failed boiler with a new oil-fired peerless wbv-e-03 and indirect water heater
Valuation:
$10,000
Permit #:
M-22-66
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Replacement of existing oil fired warm air furnace & replacement of existing outdoor air conditioning condenser
Valuation:
$18,000
Permit #:
M-23-155
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Replacement of failed oil boiler with a new peerless wbv-03 and heatflo 40 indirect water heater
Valuation:
$8,000
Permit #:
M-22-51
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Replacement of old oil fired furnace with a new trane s9x1 furnace with an air conditioning coil
Valuation:
$7,000
Permit #:
M-22-18
Status:
complete
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
Installation of fujitsu ductless heat pump system aou18rlxfzh
Valuation:
$9,000
Permit #:
22-23-0585
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of fujitsu ductless heat pump single outdoor (2) indoor 24, 000 btu
Valuation:
$7,500
Permit #:
M-24-25
Status:
issued
Fee:
N/A
Permit Type:
Heat pump/mini sp...
Building Type:
One & two family
Replacement of existing heat and air conditioning with a trane propane-fired furnace and trane xr-13 air conditioning system
Valuation:
$9,000
Permit #:
M-21-81
Status:
issued
Fee:
N/A
Permit Type:
Boiler/furnace
Building Type:
Single family
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Mark G Piechowicz Reviews
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Verified License
BuildZoom confirmed this contractor's license
Mark G Piechowicz License info
Verified License
| License # | HTG.0395833-S3 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Limited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mark G Piechowicz at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
321
Permits
- Building permit records show that Mark G Piechowicz has worked on 321 permitted projects.
Mark G Piechowicz Employees
MP
Mark Piechowicz