California contractor licence #913647

Walter Langhammer INC

Walter Langhammer INC holds California contractor licence 913647 (General Building) in Concord, Contra Costa County. Status: Expired · expires Oct 31, 2026.

Expiredlicence status

2026-10expires Oct 31, 2026

$25,000contractor's bond

Insuredworkers' comp

What this means

The licence expired on Oct 31, 2026. An expired licence cannot be used to contract for work in California until it is renewed.
Contractor's bond: $25,000 with North River Insurance Company (The). The bond is there to pay consumers and workers harmed by licence-law violations; it is not liability insurance and it does not guarantee the work.
Workers' comp: Workers' Compensation Insurance with Pie Insurance Company (The), policy through Apr 1, 2027.

Watch this licence: $9/month. We email you when CSLB's file shows a change to this licence's status, bond, workers' comp or expiry. Checked every Monday and Thursday. Cancel any time.

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Licence details

Licence number	913647
Business name (as CSLB lists it)	LANGHAMMER WALTER INC
Business type	Corporation
Status	Expired
Issued	Apr 8, 2008
Reissued	Oct 16, 2024
Expires	Oct 31, 2026
City / county / ZIP	Concord / Contra Costa / 94521
Business phone	(925) 548 3886
Contractor's bond surety	North River Insurance Company (The)
Bond amount	$25,000
Bond number	04CF629950
Bond effective	Oct 16, 2024
Workers' comp	Workers' Compensation Insurance
Workers' comp insurer	Pie Insurance Company (The)
Workers' comp effective	Apr 1, 2026
Workers' comp expires	Apr 1, 2027
CSLB record last updated	Aug 26, 2026

Classifications

B General Building: framing and building whole structures, and projects that involve two or more unrelated trades · other general building contractors in Concord

Change history

Apr 1, 2026Current workers' comp record took effect
Oct 16, 2024Current contractor's bond took effect (North River Insurance Company (The))
Oct 16, 2024Licence reissued
Apr 8, 2008Licence issued

Changes come from comparing successive copies of CSLB's public licence master file (refreshed twice a week) since October 2026, plus the dates printed on the current record.

Need a bond or workers' comp quote?

If this is your licence and you need a contractor's bond, a replacement bond or workers' comp, request quotes from licensed providers. Free, no obligation.

Check the official record (free): CSLB licence 913647 on cslb.ca.gov. Always confirm there before you hire or sign.

Rasengan Data is a private service, not CSLB. This page is built from the public CSLB licence master file as published; it may lag the live CSLB record by a few days. Not legal advice. Is this your licence and something looks wrong? CSLB's record is the source; email rasengan.win@gmail.com about this page.