Updated: May 30, 2026
Location and Projects
Address
P O BOX 900, Sonoma, CA, 95476
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Mangiantini Construction Inc
Serving Sonoma, California and the surrounding area, Mangiantini Construction Inc specializes in custom home building and renovation projects. Founded and led by John and Jennifer Mangiantini, the company draws on over 25 years of experience in the construction industry. John Mangiantini, a Sonoma native and General Building Contractor, combines his background in both residential construction and previous technical roles—including experience as a supervisor at the Valley of the Moon Water District and work at Mare Island—to bring precision to each project. The firm provides a comprehensive design-build service, managing every phase from initial planning through to final construction. With Jennifer Mangiantini’s business consulting expertise, clients receive a streamlined and coordinated experience, whether undertaking new builds or home remodels. Mangiantini Construction emphasizes full project coordination, local permitting navigation, and collaborative client relationships, reflecting deep ties to the Sonoma community.
Mangiantini Construction Inc Services
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Mangiantini Construction Inc Contact Information
Phone Number: (707) 996-2261
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Address: P O BOX 900, Sonoma, CA 95476
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Mangiantini Construction Inc Sonoma
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mangiantini Construction Inc has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.
Activity
|
8 projects
|
2025 |
|
4 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Mangiantini Construction Inc has worked on at least
17.0 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
|
5 projects
|
Home Additions |
|
4 projects
|
Multi-room remodels |
|
3 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Mangiantini Construction Inc mostly works on
home addition
and multi-room remodel
projects.
Pricing
|
1 project
|
$20k-$50k |
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 Mangiantini Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Demolition of an existing 1 ba and 3 bdr residence to allow for replacement single family dwelling
Valuation:
N/A
Permit #:
DEM23-0359
Status:
final
Fee:
$334
Permit Type:
N/A
Building Type:
N/A
Demolish interior space - cabinets and sink including faucet electric range top and vent hood wall heater and shower in the bathroom. vbu25-0134
Valuation:
N/A
Permit #:
DEM25-0227
Status:
final
Fee:
$994
Permit Type:
N/A
Building Type:
N/A
Repair broken sewer line under existing master bathroom in sfd: remove hardwood flooring saw cut concrete slab at broken pipe plumber to cut out and repair damaged sewer pipe backfill working area with sand and class 2 gravel drill and install #4 rebar and fill with concrete install new wood flooring to match existing. existing concrete slab not post tension 4 6x6 10x10 wwf 006 wp me... see more
Valuation:
$10,000
Permit #:
B21-6208
Status:
final
Fee:
$368
Permit Type:
N/A
Building Type:
N/A
Single family dwelling minor bathroom remodel - install (n) shower pan tile light fixtures plumbing vanity & sink
Valuation:
N/A
Permit #:
BLD25-1541
Status:
canceled
Fee:
$540
Permit Type:
N/A
Building Type:
N/A
Removal of (7) existing sliding doors and installation of (7) new sliding doors (replacement in kind)
Valuation:
$47,000
Permit #:
B23-2910
Status:
final
Fee:
$422
Permit Type:
N/A
Building Type:
N/A
Retain (e) electrical outlets and switches and inspect to meet code requirements
Valuation:
N/A
Permit #:
BLD25-5234
Status:
final
Fee:
$1,290
Permit Type:
N/A
Building Type:
N/A
Res-kitchen interior remodel altering non-structural walls 282sf- duplex
Valuation:
N/A
Permit #:
BLD22-4456
Status:
final
Fee:
$1,291
Permit Type:
N/A
Building Type:
N/A
(e)sfd addition (1372sf) remodel (1792sf)
Valuation:
N/A
Permit #:
BLD24-7963
Status:
resubmittal requested
Fee:
$3,803
Permit Type:
N/A
Building Type:
N/A
*on hold 4/28/22* remodel of (e) kitchen and bath_ 174 sf and addition of utility within (e) space in garage (73 sf)
Valuation:
N/A
Permit #:
BLD21-8920
Status:
plancheck
Fee:
$404
Permit Type:
N/A
Building Type:
N/A
New single family dwelling replacement (demo existing house) 3 bdr and 2 ba 1647 sq ft and 138 sq ft deck and 4kw rooftop solar
Valuation:
N/A
Permit #:
BLD23-2295
Status:
final
Fee:
$6,817
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel - demolish masonry fireplace
Valuation:
N/A
Permit #:
BLD21-7222
Status:
final
Fee:
$1,183
Permit Type:
N/A
Building Type:
N/A
New 640 (sf) guest house 413 (sf) covered porch and 900 (sf) attached garage. also installing 2 kw roof mount solar w 5 photovoltaic modules
Valuation:
N/A
Permit #:
BLD24-7948
Status:
issued
Fee:
$5,727
Permit Type:
N/A
Building Type:
N/A
Single family dwelling - interior remodel 538 (sf) and addition of 132 (sf) living space
Valuation:
N/A
Permit #:
BLD24-4991
Status:
withdrawn
Fee:
$2,002
Permit Type:
N/A
Building Type:
N/A
Remodel in primary single family dwelling to decommission bedroom convert to office
Valuation:
N/A
Permit #:
BLD20-4945
Status:
final
Fee:
$894
Permit Type:
N/A
Building Type:
N/A
For (e) single family dwelling - addition of 1206 sq ft - remodel of 203 sq ft
Valuation:
N/A
Permit #:
BLD19-7992
Status:
plancheck
Fee:
$2,649
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BLD24-7949
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rplc 200 amp electrical panel located on garage
Valuation:
N/A
Permit #:
BLD20-4014
Status:
final
Fee:
$122
Permit Type:
N/A
Building Type:
N/A
Home remodel
Valuation:
N/A
Permit #:
BLD20-4706
Status:
final
Fee:
$5,630
Permit Type:
N/A
Building Type:
N/A
(jt) remove wood/brick fireplace
Valuation:
N/A
Permit #:
DEM20-0566
Status:
final
Fee:
$217
Permit Type:
N/A
Building Type:
N/A
Revision to change
Valuation:
N/A
Permit #:
BLD21-1634.R01
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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BZ Score
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Avg Project
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Projects
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BZ Score
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Avg Project
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Projects
Mangiantini Construction Inc Reviews
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Mangiantini Construction Inc License info
Verified License
| License # | 800675 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Mangiantini Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 753733 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Mangiantini Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
48
Permits
- Building permit records show that Mangiantini Construction Inc has worked on 48 permitted projects.
Mangiantini Construction Inc Employees
JM
John Robert Mangiantini
Rmo/Ceo/Pres