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1.0 from 1 Google review · Sep 30

Diamond One Construction Inc

General contractor based in Ramona.

CSLB active · Oct 14Bond + workers’ comp on fileNot yet owner-confirmed

License covers B General Building.

Call (858) 679-2000
Contact options
Phone from the public listing · Sources and dates

Services

Google · Oct 2, 2026

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Continue toReviews

Reviews

1.0/ 5

1 review on Google

Google · Sep 30, 2026

Newest review Aug 22, 2025 · 0 reviews in the last 3 months (as of Oct 10, 2026)

No text in the newest Google reviewsWord for word · read Oct 10, 2026

1 of the newest 1 is a rating without text.

Ask for a recent reference

“Can you share a recent job like mine and a reference I can contact?”

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Reading prompts are CSDP guidance.

Rating source & date

Google Maps · Sep 30, 2026 · 1 photos on the listing.

Original Google source ↗How ratings are listed
Continue toLicense

License & insurance

CSLB · read Oct 14
LicenseActive

CSLB #1144390. B General Building: building and remodeling jobs that use two or more unrelated trades, and framing or carpentry. C-27 Landscaping: building, planting and maintaining gardens and landscapes. Licensed since Oct 1, 2025: 1 year. Expires Oct 31, 2027. The class should match your job.

Open CSLB record ↗Read Oct 14, 2026
Contractor bondOn file

Bond with AMERICAN CONTRACTORS INDEMNITY COMPANY since Aug 20, 2025: the $25,000 bond every California contractor must carry. A bond is separate from liability insurance.

Open CSLB record ↗Read Oct 14, 2026
Workers’ compInsured

Policy with INSURANCE COMPANY OF THE WEST through Apr 1, 2027. Ask whether it covers the crew on your job.

Open CSLB record ↗Read Oct 14, 2026
General liabilityAsk for a certificate

CSDP doesn’t read liability insurance. Ask the business for a current certificate that covers your job.

Full record & sources
Public listing
Construction company
Google Maps listing · Sep 30, 2026
License
CSLB #1144390 · B, C-27 · Active
CSLB · Oct 14 · expires Oct 31, 2027
Active
What the license covers
B General Building: building and remodeling jobs that use two or more unrelated trades, and framing or carpentry
C-27 Landscaping: building, planting and maintaining gardens and landscapes
CSLB’s class definitions in plain words · cslb.ca.gov
Contractor bond
$25,000 bond on file since Aug 20, 2025
CSLB · Oct 14 · AMERICAN CONTRACTORS INDEMNITY COMPANY, bond #100986618
On file
Workers' comp
Insured through Apr 1, 2027
CSLB · Oct 14 · INSURANCE COMPANY OF THE WEST, policy WSD5070563
Insured
License first issued
Oct 1, 2025
CSLB · Oct 14
Owner confirmed
Not yet
no owner confirmation on file · the owner can confirm it free
Not yet
Licensed as
DIAMOND ONE CONSTRUCTION INC
cslb.ca.gov · Oct 14 · legal name on the license

License timeline

CSLB record ↗
IssuedOct 1, 2025Record readOct 14, 2026ExpiresOct 31, 2027

CSLB · status changes between these dates aren't shown

A license record isn’t an endorsement.

Continue toHours & location

Hours and location

Google listing · Sep 30
HoursNot shown on the listing
Based in1444 Main St #1517, Ramona, CA 92065
Service areaNot owner-confirmed yetConfirm service to your address before you book.
Listing details & sources
Listed asConstruction company
Google listingNot claimed by the business on Google

Google Business Profile · Sep 30, 2026 · CSLB record

Original Google source ↗Request a change
View map
1444 Main St #1517, Ramona, CA 92065Google Maps listing · Sep 30, 2026Directions ↗Open in Google Maps ↗
Ready to talk?Contact this business

What we checked and when

How we list
CSLB licenseStatus, classes, issue and expiry datesOct 14, 2026
License matchMatched by the business’s name and phone, which match CSLB’s recordSep 29, 2026
Bond and workers’ compAs CSLB records themOct 14, 2026
Trade checkLicense classes compared with the trades this listing is underOct 14, 2026
Google listingName, phone, hours, rating and review countSep 30, 2026
Google profileThe business’s description and servicesOct 2, 2026
Google reviewsThe newest 1, word for wordOct 10, 2026

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