Updated: Jun 03, 2026
Location and Projects
Address
12 1/2 ORCHARD ST, Cos Cob, CT, 06807
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William Lavalette Plumber
William Lavalette, 12-1 2nd St, Cos Cob, CT holds a Plumbing & Piping Limited Contractor license and 1 other license according to the Connecticut license board.
Their BuildZoom score of 91 ranks in the top 37% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring William Lavalette, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
William Lavalette Services
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William Lavalette Contact Information
Address: 12 1/2 ORCHARD ST, Cos Cob, CT 06807
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new master bathroom on second floor includes wc shower and 2 lavatories
Valuation:
N/A
Permit #:
BLD-2013-77633-03
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-arrange baseboard heat on second floor for walls that have been moved
Valuation:
N/A
Permit #:
BLD-2013-77633-04
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Redo kitchen - install kitchen sink in same location and dishwasher water line to ice maker move gas line for isolation valve for cooking
Valuation:
N/A
Permit #:
BLD-2018-84624-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install nat gas line from meter to 20 kw generator @ 20
Valuation:
$2,000
Permit #:
BLD-2013-76789-02
Status:
filed
Fee:
$21
Permit Type:
N/A
Building Type:
N/A
Master bathroom - reset toilet- same location rework shower same location. install new tub & lavatory same location. kitchen sink & gas to range. move laundry valve- drain. reset two other lavatories same location
Valuation:
N/A
Permit #:
P-2007-0417
Status:
complete
Fee:
N/A
Permit Type:
437 alter. To com...
Building Type:
Condominium
Redo master bathroom. replace toilet 2 lavs tub and shower in same locations. cap bidet waste and water lines
Valuation:
N/A
Permit #:
BLD-2017-82299-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace kitchen sink dishwasher water to ice maker & gas to cooktop - all in same locations
Valuation:
N/A
Permit #:
BLD-2014-78977-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reroute waste lines master bathroom from outside wall to inside wall for new addition install steam unit for master shower
Valuation:
N/A
Permit #:
BLD-2009-70376-03
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 1/2 blk pipe gas line thru house & 2 plastic gas in trench to 40, 000 btu pool heater approx 120 feet
Valuation:
N/A
Permit #:
BLD-2004-65167-02
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rough plumbing for kitchen
Valuation:
N/A
Permit #:
BLD-2017-82854-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove bathroom tub & install shower
Valuation:
$1,200
Permit #:
P-2013-0855
Status:
complete
Fee:
$0
Permit Type:
434 alterations t...
Building Type:
Single family house
Install 100 gas line from meter to pool heater
Valuation:
N/A
Permit #:
BLD-2009-70379-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing boiler run gas line to boiler
Valuation:
$3,000
Permit #:
M-2010-1144
Status:
complete
Fee:
$51
Permit Type:
434 alterations t...
Building Type:
Single family house
Plumbing renovations for home
Valuation:
$10,000
Permit #:
BLD-1997-56267-03
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing per plans on file
Valuation:
$7,500
Permit #:
BLD-2000-59882-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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William Lavalette License info
Verified License
| License # | PLM.0208136-P3 |
| Status | Active |
| State | Connecticut |
| Type | Plumbing & Piping Limited Contractor |
| Date Issued | 11-11-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for William Lavalette 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 # | HTG.0308548-S5 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Limited Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of William Lavalette with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
11
Permits
- Building permit records show that William Lavalette has worked on 11 permitted projects.
William Lavalette Employees
WL
William Lavalette