Updated: May 30, 2026
Location and Projects
Address
68 CHESTNUT LANE, East Berlin, CT, 06023
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William G Wass HVAC/Mechanical Contractor
William G Wass, 68 Chestnut Ln, East Berlin, CT (Employee: William Wass) holds a Heating, Piping & Cooling Unlimited Contractor license and 2 other licenses according to the Connecticut license board.
Their BuildZoom score of 103 ranks in the top 10% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring William G Wass, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
William G Wass Contact Information
Address: 68 CHESTNUT LANE, East Berlin, CT 06023
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William G Wass East Berlin
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
William G Wass has a BuildZoom score of 103, which places them above 90% of 12,093 contractors in Connecticut.
Activity
|
2 projects
|
2025 |
|
8 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that William G Wass has worked on at least
14.0 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
|
9 projects
|
Mechanical projects |
|
6 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that William G Wass mostly works on
mechanical project
and hvac project
projects.
Pricing
|
4 projects
|
< $5k |
|
7 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
The typical size of their permits is approximately $8,873. 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.
Removal and proper disposal of all old equipment. we will furnish and install one new williamson oil fired furnace as a secondary heating source. we will also furnish and install one new bosch 5 ton outdoor heat pump model bovb-36hdn1-m20g with a bosch indoor coil model bmac486dntf
Valuation:
$15,000
Permit #:
BLD25-00511
Status:
issued
Fee:
$294
Permit Type:
N/A
Building Type:
N/A
Replace central 4 ton air conditioning with new central 4 ton heatpump. thermostat controls switchover based on outdoor temperature (25 or colder oil kicks on)or droop of 2 degrees if house cannot be kept warm by heatpump.bosch bova-60hdn1-m20 outdoor condenserbosch bva-48 indoor air handler
Valuation:
$10,245
Permit #:
M-24-36
Status:
issued
Fee:
N/A
Permit Type:
Heat pump/mini sp...
Building Type:
Single family
Remove existing central air conditioning condenser and coil furnish and install newinnovair coil and condenser to operate as heatpump primary and oilsecondary. new thermostats will control switchover and balance pointof 25 degrees f
Valuation:
N/A
Permit #:
64387
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace & install replacement daikin 3 ton/36000 btu heat pump system reconnect to existing units in home and addition 2 7k btu highwall units in each bedroom with all connections and transitions to ensure proper operation start up and test to correct operation
Valuation:
$9,000
Permit #:
BLD23-01286
Status:
issued
Fee:
$186
Permit Type:
N/A
Building Type:
N/A
Furnish and install one state natrual gas gts-540-nih 96% eff pvc vented ondemand gas water heater with 3 inch pvc pipe acid neuterlizer new ball valves hot and cold to the new appilance. furnish and install one state natrual gas gts-540-nih 96% eff pvc vented ondemand gas water heater with 3 inch pvc pipe acid neuterlizer new ball valves hot and cold to the new appilance
Valuation:
$3,000
Permit #:
PP-2023-120
Status:
issued
Fee:
$88
Permit Type:
Water heater
Building Type:
N/A
Move existing propane tank to new location on proposed site plan. re attach existing gas line. new air pressure test and turn equipment back on
Valuation:
$1,100
Permit #:
G-24-5
Status:
issued
Fee:
N/A
Permit Type:
In ground LP tank...
Building Type:
One & two family
U.g. yellow coated copper gasline from existing propane tank to new generator. stage 2 ventless regulator by generator stage
Valuation:
$5,000
Permit #:
BLD-2024-01154
Status:
complete
Fee:
$51
Permit Type:
N/A
Building Type:
N/A
New carrier 3.5 ton 16 seer model 24acc642 with new plastic pad. flush condenser lines. new air handler with overflow drain pan. new viessman model b1ka-199 combi boiler. condensing heat and hot water boiler with mixing valve and acid neutralizing condensate pump
Valuation:
$13,450
Permit #:
BLD21-01625
Status:
issued
Fee:
$232
Permit Type:
N/A
Building Type:
N/A
Furnish and install 1 new propane fired warm air furnace with 5 ton heatpump condenser 5 ton coil and new wifi thermsotats
Valuation:
$8,746
Permit #:
BLD23-01493
Status:
issued
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
Install plumbing for laundry hook up consisting of hot and cold water supplies and dwv piping. install plumbing for laundry hook up consisting of hot and cold water supplies and dwv piping
Valuation:
$850
Permit #:
PP-2021-18
Status:
complete
Fee:
$55
Permit Type:
Existing plumbing...
Building Type:
N/A
Installation of gas high efficiency navien ncb-240e boiler and baseboard radiation combo domestic hot water unit. addition full bathroom 2nd fl half bathroom 1st floor. load cal provided. must meet staet building code along with amendments
Valuation:
$8,400
Permit #:
P-18-260
Status:
complete
Fee:
$204
Permit Type:
plumbing/HVAC- ho...
Building Type:
Residential improved
Installing a new 16 seer 3 to bryant condenser with new plastic pad. flushing the lineset. installing new air handler with new secondary drain pan
Valuation:
$6,250
Permit #:
BLD21-01624
Status:
issued
Fee:
$124
Permit Type:
N/A
Building Type:
N/A
12k btu ductless heatpump for heating and cooling of mr johnsons poolshed mancave. mitsubishi muz-gl12na with indoor head on a 12 tall stand
Valuation:
$2,450
Permit #:
BLD21-01280
Status:
issued
Fee:
$62
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$21,173
Permit #:
M-24-220
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$17,456
Permit #:
M-24-100
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$19,000
Permit #:
M-23-485
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$3,000
Permit #:
P-23-165
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$3,000
Permit #:
P-23-17
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$8,000
Permit #:
P-22-301
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$3,800
Permit #:
M-22-395
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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William G Wass Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
William G Wass License info
Verified License
| License # | HTG.0303433-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for William G Wass at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PLM.0203984-P1 |
| Status | Active |
| State | Connecticut |
| Type | Plumbing & Piping Unlimited Contractor |
| Date Issued | 11-01-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for William G Wass at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
License Not Required
| Status | Not Required |
- BuildZoom verified in October, 2023 that this contractor does not need a license to be a contractor in Connecticut.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
28
Permits
- Building permit records show that William G Wass has worked on 28 permitted projects.
William G Wass Employees
WW
William Wass