Updated: Jul 01, 2026
Location and Projects
Address
40 SOUTH ST, Danbury, CT, 06810
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TJ& Son HVAC/Mechanical Contractor
TJ& Son Inc, 40 South St, Danbury, CT holds a Mechanical Corporation 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 TJ& Son Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
TJ& Son Inc Contact Information
Address: 40 SOUTH ST, Danbury, CT 06810
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior alterations for new savings bank of danbury. *5/23/18: reverted for additional scope. demolish only of existing second floor space. fitout for this area will be done under a seperate revision.sr additional glazing being added in other areas. add'l cost of $60k
Valuation:
$340,000
Permit #:
B-18-275
Status:
complete
Fee:
$5,773
Permit Type:
Alterations - com...
Building Type:
Office/bank bldgs
First floor landlord work for storage room by mechanical room
Valuation:
$9,000
Permit #:
BLD-2018-84141
Status:
complete
Fee:
$146
Permit Type:
N/A
Building Type:
N/A
Interior alteration for an office fit out on second floor. approx 2, 759 sqft tenant: gold coast plastic surgery this project will also require electrical plumbing hvac and sprinkler permits
Valuation:
$261,000
Permit #:
B-18-2095
Status:
complete
Fee:
$4,449
Permit Type:
Alterations - com...
Building Type:
Commercial
Renovate existing empty room into laboratory glass storage and handling area
Valuation:
$300,000
Permit #:
69772
Status:
complete
Fee:
N/A
Permit Type:
Additions/alterat...
Building Type:
N/A
Tenant fit up - 4th floor - space- for catalyst - approximately - 2500 sq. ft
Valuation:
$145,000
Permit #:
B-16-2199
Status:
complete
Fee:
$2,505
Permit Type:
Alterations - com...
Building Type:
Commercial
Replace the common corridor ceilings and light fixtures on the3rd through 6th floors of the building
Valuation:
$100,000
Permit #:
B-16-410
Status:
complete
Fee:
$1,751
Permit Type:
Renovation - comm...
Building Type:
Commercial
Install new ceiling grid and lighting package on the 2nd floor common corridor
Valuation:
$20,000
Permit #:
B-16-466
Status:
complete
Fee:
$410
Permit Type:
Renovation - comm...
Building Type:
Office/bank bldgs
Tenant space - f - 127 - cosmetic refreshments upgrades
Valuation:
$28,000
Permit #:
B-16-397
Status:
complete
Fee:
$554
Permit Type:
Alterations - com...
Building Type:
Commercial
Tenant fit - sprint telephone
Valuation:
$75,000
Permit #:
B-15-1669
Status:
complete
Fee:
$1,332
Permit Type:
Alterations - com...
Building Type:
Retail stores/mer...
Minor remodeling in 3rd floor area - unit 304 a
Valuation:
$116,000
Permit #:
B-14-2033
Status:
complete
Fee:
$1,961
Permit Type:
Alterations - com...
Building Type:
Commercial
Separate existing conference room into two exam rooms create waiting room and reception area. electrical and hvac work required
Valuation:
$13,000
Permit #:
B-14-439
Status:
complete
Fee:
$286
Permit Type:
Alterations - com...
Building Type:
Commercial
Interior renovations office to office - 2nd floor area comdisco inc 12/15/97 - co issued in error - sjs
Valuation:
$30,000
Permit #:
BLD-1992-51504
Status:
final
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Divide existing retail space into 2 units - no tenants at this time
Valuation:
N/A
Permit #:
B-03-297
Status:
complete
Fee:
N/A
Permit Type:
Alteration - comm...
Building Type:
N/A
Addition new bathroom area to 5th floor
Valuation:
$11,220
Permit #:
B-14-1836
Status:
complete
Fee:
$270
Permit Type:
Alterations - com...
Building Type:
Commercial
Phase i - offices and chem. room only phase ii- loading dock
Valuation:
N/A
Permit #:
B-03-86
Status:
complete
Fee:
N/A
Permit Type:
Alteration - comm...
Building Type:
N/A
Phase i - offices and chem. room only phase ii- loading dock
Valuation:
N/A
Permit #:
B-03-84
Status:
complete
Fee:
N/A
Permit Type:
Alteration - comm...
Building Type:
N/A
Install tenant separation wall and handicap compliant restroom
Valuation:
N/A
Permit #:
B-05-505
Status:
complete
Fee:
N/A
Permit Type:
Alteration - comm...
Building Type:
N/A
Construct closet for electric dist. panels in rear corridor
Valuation:
$1,900
Permit #:
CO-10-14-19359
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct mezzanine and roof access in warehouse
Valuation:
N/A
Permit #:
B-01-407
Status:
complete
Fee:
N/A
Permit Type:
Alteration - comm...
Building Type:
N/A
Replace vestibule site improvements
Valuation:
N/A
Permit #:
B-00-352
Status:
complete
Fee:
N/A
Permit Type:
Alteration - comm...
Building Type:
N/A
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TJ& Son Inc License info
Verified License
| License # | MCO.0900535 |
| Status | Active |
| State | Connecticut |
| Type | Mechanical Corporation |
| Date Issued | 07-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for TJ& Son Inc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
14
Permits
- Building permit records show that TJ& Son Inc has worked on 14 permitted projects.