Updated: Jun 15, 2026
Location and Projects
Address
7 Lawrence St, Norwalk, CT, 06854
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M Castle Construction, LLC
M Castle Construction, LLC, 7 Lawrence St, Norwalk, CT holds a New Home Contractor license and 2 other licenses according to the Connecticut license board.
Their BuildZoom score of 99 ranks in the top 15% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring M Castle Construction, LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
M Castle Construction, LLC Services
Start a project today:
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Framing
Wood Fences
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Drywall
Interior Plaster
Brick and Blockwork
Other Masonry
Flatwork Concrete
Foundations
Other Concrete
Seismic Retrofit
Gutters and Flashing
Industrial Renovation
Hotel Renovation
Warehouse Renovation
Small Multi-Family Remodel ...
Whole Home Remodel
Addition
M Castle Construction, LLC Contact Information
Phone Number: (203) 956-9401
Address: 7 Lawrence St, Norwalk, CT 06854
M Castle Construction, LLC Norwalk
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
M Castle Construction, LLC has a BuildZoom score of 99, which places them above 85% of 12,093 contractors in Connecticut.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that M Castle Construction, LLC has worked on at least
4.0 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
|
$5k-$20k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
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.
Building Permits by M Castle Construction, LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Retroactive permit for interior renovations - 2nd floor bedroom bathroom 3rd floor sitting room office. reconfigure stairs on 1st 2nd 3rd floors
Valuation:
$325,000
Permit #:
BLD-2024-01898
Status:
complete
Fee:
$3,335
Permit Type:
N/A
Building Type:
N/A
2nd story addition for bedrooms and bathrooms misc. interior renovations 1st floor extend rear deck porch addition
Valuation:
$850,000
Permit #:
BLD-2022-01652
Status:
complete
Fee:
$8,721
Permit Type:
N/A
Building Type:
N/A
Renovate 3rd fl for lounge and office
Valuation:
$150,000
Permit #:
BLD-2025-00273
Status:
complete
Fee:
$1,539
Permit Type:
N/A
Building Type:
N/A
2 story addition with lower level mud room and upper floor bk room. new covered front porch renovate kitchen and family room. new siding and misc. windows
Valuation:
$400,000
Permit #:
BLD-2020-86344
Status:
approved
Fee:
$4,104
Permit Type:
N/A
Building Type:
N/A
Repair and replace existing retaining wall
Valuation:
$30,000
Permit #:
BLD-2021-02117
Status:
issued
Fee:
$308
Permit Type:
N/A
Building Type:
N/A
Remove 2 columns in basement and install steel beam
Valuation:
$10,000
Permit #:
BLD-2023-02156
Status:
complete
Fee:
$103
Permit Type:
N/A
Building Type:
N/A
Finish part of basement for office - room cannot be used for sleeping
Valuation:
$20,000
Permit #:
BLD-2017-83496
Status:
final
Fee:
$205
Permit Type:
N/A
Building Type:
N/A
Remove and extend existing back porch with 50% on wood frame decking and the remain of porch floor on flag stone. installing an outdoor kitchen porch sqft 530 outdoor kitchen sqft 121 trades needed for this jobsite project: footing, foundation, rough: framing, electrical, plumbing, mechanical, finals: building, electrical, plumbing, mechanical, trades needed for this jobsite project: ... see more
Valuation:
$110,000
Permit #:
B-18-1603
Status:
complete
Fee:
$1,484
Permit Type:
Additions - Resid...
Building Type:
Single Family
Remove and extend existing back porch with 50% on wood frame decking and the remain of porch floor on flag stone
Valuation:
$110,000
Permit #:
TB-18-1603
Status:
filed
Fee:
$1,483
Permit Type:
Additions - resid...
Building Type:
Single family
Remove & replace asphalt shingle roof w lifetime shingels 6 nails/shingle ice& water shld around eaves&15# building paper install 3 skylgts**5/14/08 upgrade to addition 12'x20 deck finish bsm't for 2 br bth plyrm. int reno-mbth, kit, misc.new cvd porch**
Valuation:
$12,000
Permit #:
BLD-2008-69640
Status:
final
Fee:
$122
Permit Type:
N/A
Building Type:
N/A
Bedroom and bathroom dormer and interior alterations. ***12/11/2012 revised to renovate kitchen , replace stairs to 2 nd floor,c/o layout 2 nd floor, reside house revised to extend (2) two dormers.
Valuation:
$62,415
Permit #:
B-2012-0730
Status:
complete
Fee:
$1,165
Permit Type:
434 Additions and...
Building Type:
Single Family House
1st floor existing bathroom renovation and main front door replacement. all locations staying the same.
Valuation:
$25,000
Permit #:
B-18-433
Status:
complete
Fee:
$357
Permit Type:
Alterations - Res...
Building Type:
Single Family
Replace existing deck,remove existing framing and install new frame,composite decking and railing.
Valuation:
$15,000
Permit #:
B-16-769
Status:
complete
Fee:
$223
Permit Type:
Decks - Residential
Building Type:
Single Family
2nd floor add'n for m.b.r int reno to (2) 2nd floor baths masonary f p in 2nd floor sitting room & new front portico
Valuation:
$150,000
Permit #:
BLD-2008-69934
Status:
final
Fee:
$1,527
Permit Type:
N/A
Building Type:
N/A
5/14/08 upgrade to addition 12'x20 deck finish bsm't for 2 br bth plyrm. int reno-mbth, kit, misc.new cvd porch - zp 36285
Valuation:
$75,000
Permit #:
BLD-2008-69640-01
Status:
final
Fee:
$762
Permit Type:
N/A
Building Type:
N/A
Replace unsafe shed with new one on existing structure
Valuation:
$20,000
Permit #:
BLD-2014-79080
Status:
final
Fee:
$205
Permit Type:
N/A
Building Type:
N/A
Rebuild existing wood deck that has collapse (will provide pictures)
Valuation:
$6,400
Permit #:
B-14-1169
Status:
complete
Fee:
$110
Permit Type:
Decks - Residential
Building Type:
Single Family
Roofing
Valuation:
$0
Permit #:
B-08-58379
Status:
Issued
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
Roofing
Valuation:
$0
Permit #:
B-08-58083
Status:
Issued
Fee:
$66
Permit Type:
N/A
Building Type:
N/A
Roofing
Valuation:
$0
Permit #:
B-08-58035
Status:
Issued
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
M Castle Construction, LLC Reviews
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M Castle Construction, LLC License info
Verified License
| License # | NHC.0018639 |
| Status | Active |
| State | Connecticut |
| Type | New Home Contractor |
| Date Issued | 05-08-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for M Castle Construction, LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HIC.0612077 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for M Castle Construction, LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-115408-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for M Castle Construction, LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
20
Permits
- Building permit records show that M Castle Construction, LLC has worked on 20 permitted projects.