Updated: Jun 01, 2026
Location and Projects
Address
8 Fitzpatrick Rd, Harwinton, CT, 06791
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John H Goncalves Photos
John H Goncalves HVAC/Mechanical Contractor
Residential HVAC contracting, specializing in replacement and retrofit oil and gas warm air/air conditioning systems, custom duct work, boilers, water heaters and ductless mini splits.
From BuildZoom: John H Goncalves, 8 Fitzpatrick Rd, Harwinton, CT holds a Heating, Piping & Cooling Limited Contractor license and 4 other licenses according to the Connecticut license board.
Their BuildZoom score of 98 ranks in the top 16% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John H Goncalves, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John H Goncalves Services
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John H Goncalves Contact Information
Phone Number: (860) 601-2621
Address: 8 Fitzpatrick Rd, Harwinton, CT 06791
John H Goncalves Harwinton
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
John H Goncalves has a BuildZoom score of 98, which places them above 84% of 12,093 contractors in Connecticut.
Activity
|
2 projects
|
2023 |
Our building permit records indicate that John H Goncalves 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
|
$20k-$50k |
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 two high efficiency gas furnaces with duct work. 80, 000 btu 3 zones for main level. 40, 000 btu for finished lower level
Valuation:
$25,000
Permit #:
M-23-77
Status:
complete
Fee:
N/A
Permit Type:
Mechanical: appli...
Building Type:
Single family
Install a two zone ductless mini split for the breezeway and room above the garage. cooling and supplemental heat. 24, 000 btu za
Valuation:
$4,500
Permit #:
M-21-35
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: new a...
Building Type:
Single family
Two new propane warm air furnaces with duct systems
Valuation:
$18,000
Permit #:
M-22-41
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: subco...
Building Type:
Single family
New natural gas furnaces with duct work and air conditioning units
Valuation:
$12,000
Permit #:
M-21-58
Status:
complete
Fee:
N/A
Permit Type:
Mechanical: subco...
Building Type:
Single family
Addition ductless mini split 18, 000 btu heat pump. za
Valuation:
$3,500
Permit #:
M-21-41
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: new a...
Building Type:
Single family
Addition two new natural gas furnaces addition ducting as needed
Valuation:
$15,000
Permit #:
M-20-240
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: subco...
Building Type:
Single family
Install new system in attic d/v nat gas furnace & air conditioning
Valuation:
$5,000
Permit #:
H-1-20-29518
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition ducts for finished attic space
Valuation:
$5,000
Permit #:
M-23-30
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: addit...
Building Type:
Single family
Two zone mini split 24, 000 btu
Valuation:
$7,000
Permit #:
M-21-322
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: new a...
Building Type:
Single family
Install 2 d/v furnaces air conditioning & ductwork
Valuation:
$12,000
Permit #:
H-6-20-30155
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install propane hot air heat and air conditioning ductwork and gas lines
Valuation:
$14,500
Permit #:
M-19-716
Status:
issued
Fee:
$199
Permit Type:
HVAC
Building Type:
Single family
Addition 4 duct opening locations off existing hvac system
Valuation:
$900
Permit #:
M-19-602
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
Run gas line to furnace
Valuation:
$1,000
Permit #:
P-1-20-29519
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repacle main house heat and air conditioning and addition air conditioning to inlaw apartment
Valuation:
N/A
Permit #:
39196
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition two propane fired warm air furnaces with duct work. 40, 000 btu attic 80, 000 btu basement
Valuation:
$16,000
Permit #:
M-22-121
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: appli...
Building Type:
Single family
Addition 4 ton fujitsu mini split system. single outdoor attached to house under 18 off house 4 indoor units. za
Valuation:
$12,000
Permit #:
M-20-190
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: alter...
Building Type:
Single family
Install two propane warm air furnaces with air conditioning and new duct systems
Valuation:
$15,000
Permit #:
M-21-111
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: subco...
Building Type:
Single family
New propane warm air system with air conditioning
Valuation:
$15,000
Permit #:
H-22-0088
Status:
issued
Fee:
$193
Permit Type:
N/A
Building Type:
N/A
Repairs to house and finish screened in porch. (unfinished work from expired permit # 200700384).**amended 12/2/14 to include hvac in attic***permit amended 12/2/14 to include gas line to furnace***
Valuation:
N/A
Permit #:
M-14-131
Status:
issued
Fee:
N/A
Permit Type:
Alteration - resi...
Building Type:
N/A
Extend/relocate 3 branch supply air ducts
Valuation:
$800
Permit #:
M-21-371
Status:
issued
Fee:
N/A
Permit Type:
Mechanical: alter...
Building Type:
Single family
John H Goncalves Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
John H Goncalves License info
Verified License
| License # | HTG.0402570-D1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Limited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for John H Goncalves at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | SHM.0003439-SM2 |
| Status | Active |
| State | Connecticut |
- When BuildZoom last verified this license, it had an expiration date of August, 2020. Check the current license status of John H Goncalves with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HTG.0402570-D1 |
| Status | Active |
| State | Connecticut |
- When BuildZoom last verified this license, it had an expiration date of August, 2020. Check the current license status of John H Goncalves with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HTG.0307368-D1 |
| Status | Inactive |
| State | Connecticut |
| Type | Heating, Piping & Cooling Limited Contractor |
- According to the Connecticut Department of Consumer Protection, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John H Goncalves at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HIC.0647432 |
| Status | Inactive |
| State | Connecticut |
| Type | Home Improvement Contractor |
- According to the Connecticut Department of Consumer Protection, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John H Goncalves at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
35
Permits
- Building permit records show that John H Goncalves has worked on 35 permitted projects.