Updated: Feb 26, 2026
Location and Projects
Address
5707 Los Alamos Ct, Santa Rosa, CA, 95409
Use our bidding system to
request a quote
Cromwell Construction and Management Photos
Cromwell Construction and Management
Residential, Commercial, new or remodel. We have you covered
From BuildZoom: Cromwell Construction and Management, 5707 Los Alamos Ct, Santa Rosa, CA (Employees: Jonathan Thomas Cromwell and Miguel Rivers) holds a General Building license according to the California license board.
Their BuildZoom score of 110 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cromwell Construction and Management, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cromwell Construction and Management Services
Start a project today:
Custom Home Build
New Home Construction
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Garage Construction
Drafting
Restaurant New Construction
Retail New Construction
Other Commercial New Constr...
ADU
Whole Home Remodel
Other Secondary Structure N...
Addition
Vertical Addition
Horizontal Addition
Vertical and Horizontal Add...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
Addition Design
ADU Design
Bathroom Design
Custom Home Design
Kitchen Design
Restaurant Design
Retail Design
Cromwell Construction and Management Contact Information
Phone Number: (707) 310-1943
Address: 5707 Los Alamos Ct, Santa Rosa, CA 95409
Cromwell Construction and Management Santa Rosa
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cromwell Construction and Management has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Cromwell Construction and Management has worked on at least
7.0 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
|
3 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Cromwell Construction and Management mostly works on
home addition
projects.
Pricing
|
3 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $12,000. 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.
Building Permits by Cromwell Construction and Management
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition a covered patio-woolsey residence-2270 newgate ct- santa rosa room covered patio to the rear of the home per attached drawings. this room was previously submitted by the original builder homebound and approved. many of the homes on the hill have this. it will have a concrete slab and comparable room with stucco to match the existing home
Valuation:
$10,500
Permit #:
B24-1221
Status:
waiting for applicant
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential electrical - alteration remodel or repair
2025-10-23
Void - incorrect permit type - replaced with permit bldr-2025-1010 replacement of kitchen cabinetry counters flooring electric stove sink and faucet. addition of kitchen island. electrical work to addition or relocate outlets as needed
Valuation:
$22,000
Permit #:
ELER-2025-0269
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace (4) trusses due to damage from a falling tree approx. 600 sf reroof entire single family dwelling - remove existing comparable and install new comparable 2600 sf remove and replace 240 sf of ceiling drywall in living room and kitchen. ce23-0096 under 50% no sprinklers are required. okay to issue per cbo j oswald
Valuation:
$12,000
Permit #:
B23-1476
Status:
final
Fee:
$515
Permit Type:
N/A
Building Type:
N/A
Hdd bore new 3 primary service conduit for pg&e panel upgrade from pg&e box located in planter strip on the property side of the sidewalk to the new meter location on the front left side of the home located at 1213 rincon meadows court. install new 200 amp service panel and have pg&e place the meter. then turn the existing main panel into a sub panel and provide conduit for future adu
Valuation:
N/A
Permit #:
B23-4580
Status:
issued
Fee:
$217
Permit Type:
N/A
Building Type:
N/A
Repair permit - repair roof back to original condition reside entire house paint
Valuation:
$36,985
Permit #:
BLDR-2025-0054
Status:
complete
Fee:
$1,224
Permit Type:
N/A
Building Type:
N/A
Replace and building a new retaining wall along a property line between our residence and our neighbor's at 21476 rio vista terrace monte rio (neighbor's parcel #: 095-157-010-000)
Valuation:
N/A
Permit #:
BLD23-5094
Status:
issued
Fee:
$769
Permit Type:
N/A
Building Type:
N/A
R&r front windows of single family dwelling
Valuation:
$6,500
Permit #:
B23-0567
Status:
approved
Fee:
$210
Permit Type:
Single family dwe...
Building Type:
N/A
Cromwell Construction and Management Reviews
BuildZoom hasn't received any reviews for Cromwell Construction and Management. Click here to be alerted when reviews are posted about them.
Verified License
BuildZoom confirmed this contractor's license
Cromwell Construction and Management License info
Verified License
| License # | 910493 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Cromwell Construction and Management at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $12,500 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
7
Permits
- Building permit records show that Cromwell Construction and Management has worked on 7 permitted projects.
Cromwell Construction and Management Employees
JC
Jonathan Thomas Cromwell
President
MR
Miguel Rivers
Vie President