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Updated: Jul 15, 2025
Location and Projects
Address
417 South St, Marlborough, MA, 01752
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Hannah Kowalski
Hannah Kowalski at 417 South St, Marlborough, MA 01752, has a BuildZoom score of 107 and ranks in the top 6% of 139,240 Massachusetts contractors.
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Hannah Kowalski Contact Information
Phone Number: (845) 649-6073
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Address: 417 South St, Marlborough, MA 01752
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Hannah Kowalski Marlborough
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Hannah Kowalski has a BuildZoom score of 107, which places them above 94% of 139,240 contractors in Massachusetts.
Activity
|
1 project
|
2025 |
|
3 projects
|
2024 |
|
37 projects
|
2023 |
Our building permit records indicate that Hannah Kowalski has worked on at least
41.0 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
|
3 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Hannah Kowalski mostly works on
home addition
projects.
Pricing
|
10 projects
|
< $5k |
|
8 projects
|
$5k-$20k |
|
16 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
The typical size of their permits is approximately $20,000. 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.
Install one 5-ton geothermal heat pump closed loop system. no duct work is associated with this permit application. a seperate electrical permit will be applied for by a subcontractor at a later date
Valuation:
$16,250
Permit #:
R-22-0918
Status:
issued
Fee:
$136
Permit Type:
Geothermal
Building Type:
N/A
Install one 5-ton geothermal heat pump closed loop system. no duct work is associated with this permit application. a seperate electrical permit will be applied for by a subcontractor at a later date
Valuation:
$16,250
Permit #:
R-22-0918
Status:
issued
Fee:
$136
Permit Type:
Geothermal
Building Type:
N/A
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Valuation:
$2,500
Permit #:
BP-23-811
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install circuits for 4 ton closed loop geothermal heat pump system. (no sheetmetal or mechanical work in scope)
Valuation:
$15,000
Permit #:
EP-25-773
Status:
issued
Fee:
$40
Permit Type:
Appliance
Building Type:
N/A
Install one 5-ton geothermal heat pump closed loop system. no duct work is associated with this permit application. subcontractors will apply for an electrical permit for this work
Valuation:
$16,250
Permit #:
M-22-1108
Status:
complete
Fee:
$50
Permit Type:
Renovation
Building Type:
N/A
Install one 4-ton geothermal heat pump closed loop system. upsize ductwork in relation to the geothermal heat pump system installation to meet company airflow standards
Valuation:
$35,500
Permit #:
B-23-311
Status:
issued
Fee:
N/A
Permit Type:
Sheet metal permit
Building Type:
Single family
Install two 4-ton geothermal heat pumps closed loop system. upsize ductwork in relation to the geothermal heat pump system installation to meet company airflow standards
Valuation:
$44,000
Permit #:
M-23-47
Status:
issued
Fee:
N/A
Permit Type:
HVAC
Building Type:
N/A
Install one 6-ton geothermal heat pump closed loop system. no ductwork is associated with this permit application
Valuation:
$19,500
Permit #:
BP-23-96
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one 6-ton geothermal heat pump closed loop system. upsize ductwork to match company air flow standards
Valuation:
$40,000
Permit #:
R-24-0583
Status:
final
Fee:
$420
Permit Type:
Alteration
Building Type:
N/A
Install one 5-ton geothermal heat pump closed loop system. install air source minisplits. no ductwork is associated with this permit application
Valuation:
$16,250
Permit #:
R-22-0137
Status:
complete
Fee:
$30
Permit Type:
Geothermal
Building Type:
N/A
Upsize current ductwork to reach company standards for airflow in relation to the open/existing building permit to install geothermal heat pump
Valuation:
$7,500
Permit #:
23-15SM
Status:
expired
Fee:
$106
Permit Type:
N/A
Building Type:
N/A
Install 3 ton closed loop geothermal heat pump system
Valuation:
$20,000
Permit #:
BP-2025-0846
Status:
issued
Fee:
$208
Permit Type:
Mechanical
Building Type:
N/A
Improve airflow of ductwork to meet company standard in correlation with already issued building permit for geothermal heat pump installation
Valuation:
$2,500
Permit #:
23-14SM
Status:
expired
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Install one 5-ton geothermal heat pump closed loop system. no ductwork is associated with this permit application
Valuation:
$16,250
Permit #:
R-22-00092
Status:
issued
Fee:
$128
Permit Type:
N/A
Building Type:
N/A
Install 2x 3 ton closed loop geothermal heat pump system install new ductwork for second floor in attic
Valuation:
$45,000
Permit #:
M-23-64
Status:
issued
Fee:
N/A
Permit Type:
HVAC
Building Type:
N/A
Install one 5-ton geothermal heat pump closed loop system. no ductwork is associated with this permit application
Valuation:
$25,000
Permit #:
23-55RB
Status:
complete
Fee:
$310
Permit Type:
N/A
Building Type:
N/A
In order to achieve company standard static pressure of 0 8 wc or less we will upsize and addition ductwork as needed
Valuation:
$2,500
Permit #:
M-23-0001
Status:
issued
Fee:
$100
Permit Type:
HVAC
Building Type:
N/A
In order to achieve company standard static pressure of 0.8 wc or less we will upsize and addition ductwork as needed
Valuation:
N/A
Permit #:
SM-2023-00025
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Install one 4-ton geothermal heat pump closed loop system
Valuation:
$19,500
Permit #:
23-184RB
Status:
expired
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Install one 2-ton one 3-ton and one 5-ton geothermal heat pump closed loop system
Valuation:
$55,550
Permit #:
R-23-1432
Status:
final
Fee:
$672
Permit Type:
Alteration
Building Type:
N/A
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Projects
Hannah Kowalski Reviews
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Hannah Kowalski License info
License Not Required
| Status | Not Required |
- BuildZoom verified in November, 2022 that this contractor does not need a license to be a contractor in Massachusetts.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
56
Permits
- Building permit records show that Hannah Kowalski has worked on 56 permitted projects.