Updated: May 27, 2026
Location and Projects
Address
208 Baker St, Boston, MA, 02132
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John Davas Construction
John Davas Construction has over 25 years of experience
From BuildZoom: John Davas Construction, 208 Baker St, Boston, MA (Employees: David Thomas Williamson and Leonard Delbert Williamson) holds a Home Improvement Contractor license and 11 other licenses according to the Massachusetts license board.
Their BuildZoom score of 96 ranks in the top 20% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John Davas Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John Davas Construction Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
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
Roofing
Wood Fences
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Brick and Blockwork
Other Masonry
Foundations
Other Concrete
Demolition
Paving, Driveways, and Side...
Excavation and Grading
Other Site Work
Garage Construction
Gutters and Flashing
Skylights
Sea Walls
Drafting
Pole Barn
Other Commercial New Constr...
John Davas Construction Contact Information
Phone Number: (562) 324-4350
Address: 208 Baker St, Boston, MA 02132
Building Permits by John Davas Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Add'n of sunroom on no. side of ex'g structure - per plans submitted
Valuation:
$180,000
Permit #:
2020-2615
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Construct 16 x 26 deck attached to rear of house ***any sono tube within 5 of a septic structure must be set as deep as the bottom of that structure _ bd of health****
Valuation:
$10,000
Permit #:
2011-05840
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Install 9 windows on second floor install new door and 2 new windows on first floor re-roof 3 squares flat south facing roof using rubber membrane residewall 1.5 squares gable above construct sun deck on rear of house
Valuation:
$28,000
Permit #:
2013-02141
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
All work in 3rd floor attic; remove homasote walls & ceiling coverings and replace with blueboard & plaster. install new interior trim/paint. replace three (3) new windows. two double hung 1 awning of same size no header change. insulate 2 x 6 rafters with spray foam insulation. non-heated area. apply blueboard & plaster over insulation. ********* already finished re-doing existing **... see more
Valuation:
$22,000
Permit #:
2013-06733
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Construct a 6 x 9 bathroom in unfinished basement. all pressure treated plywood and approx 3 bdl of white cedar shingles to cover exposed foundation. finish staircase leading to bsement from 1st floor ** fire dept note: please check for existing smoke/co detectors **
Valuation:
$14,000
Permit #:
2010-02453
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Phase 1: remodel front entry stairs hall livingroom. phase 2: remodel kitchen bath/laundry 2-story addition. ***** health dept note: need septic system upgrade compliance before issuing use and occupancy. historical app #08-78
Valuation:
$200,000
Permit #:
2009-00637
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
#305 - studio la sil the art of jewelry - leanne silva 508-964-2001 changing use of retail space from hair salon to a jewelry store for leanne silva
Valuation:
$10,000
Permit #:
2011-01669
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
325 small retail ...
Deck on back of house; construct a 6 tall x 18 long retaining wall. plastic mesh to be installed prior to backfill to keep weep holes unobstructed **** zba #11-13 *****
Valuation:
N/A
Permit #:
2013-00654
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Attach addition to north & east walls. eliminate existing master bedroom change to music room. addition to include new master bedroom suite new kitchen and one half bathroom
Valuation:
$140,000
Permit #:
2008-01073
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Construct a 20'6 x 16 four-season room. construct a 7'6 x 8 half bathroom addition. constuct a 20'6 x 16 sundeck. 7'x8 concrete patio off to the side. ***plywood panels for wind bourne debris ***
Valuation:
$80,000
Permit #:
2013-04526
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Remove existing sun deck & construct a 18 x 16'8 2 story addition to rear of house ***** entire house must conform to s.d. type and location**************
Valuation:
$45,000
Permit #:
2007-00462
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Replacement of 5 windows with no header changes and 9 squares of white cedar siding with 5 exposure to weather -- 8/6/2013 - amended to 7 windows with no header change
Valuation:
$9,500
Permit #:
2013-04029
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Siding of 2.5 squares. wc 5 exp. strip & re-roof 32 squares (100%) iko cambridge. 30 yr
Valuation:
$19,000
Permit #:
2008-04147
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Remove existing windows frame openings to accept new windows
Valuation:
$20,000
Permit #:
2008-00034
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Remodel one (1) kitchen and three (3) bathrooms
Valuation:
$100,000
Permit #:
2013-01128
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Attach a 3 x 3 pressure treated platform to carry a 175 lb air conditioning compressor
Valuation:
$1,000
Permit #:
2011-01036
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Strip and re-roof twenty (20) squares; 100% of roof; certainteed/landmark/lifetime
Valuation:
$7,500
Permit #:
2012-00686
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Strip and re-roof twenty (20) squares; 50% of roof; iko/cambridge/30 year
Valuation:
$10,000
Permit #:
2010-01182
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Strip & re-roof with 12 squares (100% certainteed landmark lifetime)
Valuation:
$4,500
Permit #:
2012-09880
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Strip & re-roof 15 squares (100% owens corning desert tan 30 yr)
Valuation:
$6,000
Permit #:
2009-05986
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
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Verified License
BuildZoom confirmed this contractor's license
John Davas Construction License info
Verified License
| License # | 112161 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for John Davas Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 112161 |
| Status | Active |
| City | Newton |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of John Davas Construction with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 112161 |
| Status | Active |
| City | Newton |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of John Davas Construction with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 179810 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- When BuildZoom last verified this license, it had an expiration date of November, 2018. Check the current license status of John Davas Construction with the Mass.gov Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 179810 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 914072 |
| Status | Inactive |
| State | California |
| Type | General Building |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 164528 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 147567 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 102157 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MA2152REG |
| Status | Inactive |
| State | Massachusetts |
| Type | General Contractor |
- According to the Massachusetts Department of Public Safety, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 320257 |
| Status | Inactive |
| State | California |
| Type | General Building |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 508539 |
| Status | Inactive |
| State | California |
| Type | General Building |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for John Davas Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Bonded
| Bonded Agent | Old Republic Surety Company |
| Bond Value | $12,500 |
30
Permits
- Building permit records show that John Davas Construction has worked on 30 permitted projects.
John Davas Construction Employees
DW
David Thomas Williamson
Sole Owner
JD
John Davas
Owner
LW
Leonard Delbert Williamson
Sole Owner