Contractor in Richland, WA.
Alpha Backflow Testing Llc appears in Washington license records as a contractor based in Richland, WA. The record lists a WA L&I Construction Contractor license (#ALPHABT742JL) with status “Active”. It is listed as valid through 2028-04-13.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
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Create a free account Or subscribe to message in-appCheck license #ALPHABT742JL on the Washington L&I lookup and the BBB the day you hire; status can change after Bidroom's last import (2026-05-04).
Alpha Backflow Testing Llc is a contractor based in Richland, Washington. Their license classification is GENERAL.
Yes. Alpha Backflow Testing Llc holds Washington L&I license #ALPHABT742JL (status: Active). Verify the current status on Washington L&I before hiring.
Alpha Backflow Testing Llc is based in Richland, WA 99352.
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The fastest way is to post your project on Bidroom — Alpha Backflow Testing Llc and up to 2 other verified contractors in Richland can bid on it, and every quote includes itemized pricing + a written scope of work.
Not yet. This listing was created from public Washington license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.
Contractor vetting checklist · Cost guide · Look up this license at the state board