Updated: Jun 18, 2026
Location and Projects
Address
52 CONNECTICUT AVE, Norwalk, CT, 06850
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Athanasios D Bletsas HVAC/Mechanical Contractor
Athanasios D Bletsas, 52 Connecticut Ave, Norwalk, CT (Employees: Athanasios Bletsas and Dimitrios Bletsas) holds a Heating, Piping & Cooling Unlimited 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 Athanasios D Bletsas, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Athanasios D Bletsas Contact Information
Address: 52 CONNECTICUT AVE, Norwalk, CT 06850
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Athanasios D Bletsas Norwalk
Quality
93
73rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Athanasios D Bletsas has a BuildZoom score of 93, which places them above 73% of 12,093 contractors in Connecticut.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Athanasios D Bletsas has worked on at least
3.0 projects over the past 2 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
|
2 projects
|
$5k-$20k |
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.
Replacement of boiler with (1) weil mclain ultra boiler model 155
Valuation:
$12,000
Permit #:
RM-24-61
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Each unit shall get the installation of (4) ductless mitsubishi units. three units will have a cooling capacity of 9, 000 btu's and one will have 15, 000 btus. installation of (1) condenser with a cooling capacity of 42, 000 btus
Valuation:
$20,000
Permit #:
M-20-399
Status:
issued
Fee:
N/A
Permit Type:
HVAC
Building Type:
Two family
Installation of a weil mclain ultra boiler model 299. installation of (3) carrier infinity condensers model 24anb6 and (3) carrier air handlers model fvc4cnf and (3) carrier hot water coils model ccwc
Valuation:
$15,000
Permit #:
M-21-579
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family
Installation of a weil mclain gas fire boiler utlra 230. completion of hydro piping per manufacturers requirements. installation of an aqua plus 85 indirect water heater. installation of 3 24acc6 carrier condensers with 3 carrier fan coil model fb4cnf installation of ductwork as necessary low voltage electrical only
Valuation:
$30,000
Permit #:
M-19-506
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
Replace existing remote terminal unit with a carrier remote terminal unit model 48fce
Valuation:
$9,500
Permit #:
M-22-18
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Conversion from oil to gas. installation of 1 weil mclain gas fired boiler and aqua plus indirect water heater. installation of (2) carrier condensers model 24abb3 with hydro air fan coil indoor units
Valuation:
$20,000
Permit #:
M-19-468
Status:
complete
Fee:
$265
Permit Type:
HVAC
Building Type:
Single family
We shall addition a hot water coil to the existing hvac system in place. we shall extend the existing duct work to include a return for the third floor. everything else will stay as is
Valuation:
$5,000
Permit #:
M-19-42
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
Warm air gas/propane furnace with air conditioning
Valuation:
$8,000
Permit #:
M-19-350
Status:
issued
Fee:
$99
Permit Type:
Mechanical - r
Building Type:
Single family
First flr: installation of carrier puron comfort series condensing unit model 24abb336 with a 13 seer rating and 3.0 tons of air conditioning capacity and 208/230v and a hydro air fan coil unit with 79, 000 btu’s and 1200 cfm. second flr: installation of a carrier puron comfort series condensing unit model 24abb336 with a 13 seer rating and 3.0 tons of air conditioning capacity and 20... see more
Valuation:
$25,000
Permit #:
M-18-269
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
All replacement items: installation of carrier comfort series natural gas furnace model 92% afue 4-way mutlipose 59sc2c080s17. installation of carrier puron comfort series condensing unit model 24abb336 with a 13 seer rating and 3.0 tons of air conditioning capacity and 208/230v. installation of a carrier vertical a coil cnphp3617ala installation of instant water heater completion of ... see more
Valuation:
$13,000
Permit #:
M-17-1057
Status:
issued
Fee:
$172
Permit Type:
HVAC
Building Type:
Single family
Installation of (1) propane boiler with 139, 000 btu's of heating capacity. equipped with 45 gallon water heater. installation of (2) 16 seer air conditioning condensers; 2.5 tons and 5.0 tons. model numbers 24acc630a003 and 24acc660a003 respectively. installation of (2) variable speed indoor units model fv4cnf002. equipped with (2) hot water coils with 59, 000 btu's capacity each
Valuation:
$35,000
Permit #:
M-17-10
Status:
complete
Fee:
$464
Permit Type:
HVAC
Building Type:
Single family
Installation of a carrier forced warm air gas furnace to replace the existing one. new furnace has 120, 000 btu's. installation of carrier performance air conditioning model 24acc348 condenser. four ton system with 48, 000 btu's and air conditioning coil
Valuation:
$16,500
Permit #:
M-17-533
Status:
complete
Fee:
$225
Permit Type:
HVAC
Building Type:
Single family
Installation of (3) carrier roof top units model 48hced and necessary ductwork installation of (4) exhaust fans and (1) hood manufactured and provided by captiveaire all work as per approved drawings
Valuation:
$32,000
Permit #:
M-18-630
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Restaurant
Installation of (3) carrier roof top units model 48hced and necessary ductwork installation of (4) exhaust fans and (1) hood manufactured and provided by captiveaire all work as per approved drawings
Valuation:
$32,000
Permit #:
TM-18-630
Status:
filed
Fee:
$0
Permit Type:
HVAC
Building Type:
Restaurant
Installation of (2) carrier roof top units model 48hc and necessary ductwork installation of (2) exhaust fans and (1) hood manufactured and provided by captiveaire all work as per approved drawings
Valuation:
$38,500
Permit #:
M-17-718
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Commercial
Replacing existing boiler with 1 ultra gas fire boiler weil mclain ultra 155 with 96% afue replace (2) carrier condensers model 24abb336 with 14 seer replacing (2) hydro units with first company units
Valuation:
$30,500
Permit #:
M-17-1026
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
Building permit #b14-147. installing (2) mitsubishi variable flow outdoor units model pumy-p60nkmu. both outdoor units are to be placed on the roof. install (4) mitsubishi cassette ceiling units with a four way flow capability model plfy-p30nbmu
Valuation:
$5,000
Permit #:
M-14-789
Status:
complete
Fee:
$81
Permit Type:
HVAC
Building Type:
Commercial
Install (1) gas fired boiler; (1) hot water heater (3) condensing units; (3) fan coils; (1) modine heater; all ductwork and refirgeration/condensation piping for the above units
Valuation:
$70,000
Permit #:
M-14-953
Status:
issued
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
Install a hydro air fan coil unit 36hbxb-hw-txv410 & carrier condensing unit 24abb330. install duct work for attic area. complete the necessary condensation & refrigeration piping for the above installation
Valuation:
$8,500
Permit #:
M-15-267
Status:
complete
Fee:
N/A
Permit Type:
HVAC
Building Type:
Single family
Installation of 2 gas fired boilers in the basement area (2-utica mgb-150 125, 000 btu/hr). replacement of the existing oil fired furnace. relocation of the existing gas meter from the basement to the outdoors
Valuation:
$5,000
Permit #:
M-14-268
Status:
issued
Fee:
$61
Permit Type:
Gas burner/gas bo...
Building Type:
Two family
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Verified License
BuildZoom confirmed this contractor's license
Athanasios D Bletsas License info
Verified License
| License # | HTG.0406086-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Athanasios D Bletsas at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HTG.0399341-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Athanasios D Bletsas at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
129
Permits
- Building permit records show that Athanasios D Bletsas has worked on 129 permitted projects.
Athanasios D Bletsas Employees
AB
Athanasios Bletsas
DB
Dimitrios Bletsas