New Plumbing contractors in Black Diamond, WA
1
New, 30 days
- Last 7 days
- 0
- 90 days
- 1
- On record
- 12
- With phone
- 100%
1 new license for Plumbing contractors in Black Diamond, WA in the last 30 days, the latest on October 9, 2026. Read from the licensing records every day; renewals never count.
- Oct 09
WAXMAN FAMILY PLUMBING LLC
CONSTRUCTION CONTRACTOR - GENERAL #••••PZ
Black Diamond, WA
(253) •••-••71King County
(253) •••-••71
- Feb 14
PLUMB FIT
Plumbing, Heating, and Air-Conditioning Contractors #••••05
Black Diamond, WA
(253) •••-••79King County
(253) •••-••79
- Jun 02
MILES PLUMBING LLC
CONSTRUCTION CONTRACTOR - GENERAL #••••LB
Black Diamond, WA
(206) •••-••02King County
(206) •••-••02
- May 20
REDLINE PLUMBING LLC
Registered business #••••81
Black Diamond, WA
No phoneKing County
No phone on record
- Mar 12
ECO AIR NW LLC
Registered business #••••26
Black Diamond, WA
No phoneKing County
No phone on record
- Mar 20
SHIRLEY PLUMBING
Plumbing, Heating, and Air-Conditioning Contractors #••••58
Black Diamond, WA
(206) •••-••38King County
(206) •••-••38
- Feb 24
DIAMOND PLUMBING, INC
Registered business #••••01
Black Diamond, WA
No phoneKing County
No phone on record
- Mar 21
PLUMB FIT INC
PLUMBING CONTRACTOR - RESIDENTIAL #••••OA
Black Diamond, WA
(253) •••-••79King County
(253) •••-••79
- Sep 08
DCI PLUMBING INC
PLUMBING CONTRACTOR - RESIDENTIAL #••••NU
Black Diamond, WA
(360) •••-••24King County
(360) •••-••24
- Sep 15
DCI PLUMBING INC
Plumbing, Heating, and Air-Conditioning Contractors #••••25
Black Diamond, WA
(360) •••-••21King County
(360) •••-••21
- Aug 15
REDLINE MECHANICAL
Plumbing, Heating, and Air-Conditioning Contractors #••••71
Black Diamond, WA
(253) •••-••98King County
(253) •••-••98
- Jan 01
DIAMOND PLUMBING INC
Plumbing, Heating, and Air-Conditioning Contractors #••••38
Black Diamond, WA
(360) •••-••40King County
(360) •••-••40
Full phone, email and street address on every license, in the full feed.
Unlock the full feedOther trades in Black Diamond
New in 30 daysPlumbing by state
New in 30 daysWhat's in each Black Diamond, WA record
- Business name
- Owner or qualifier, where published
- License number, type and trade
- Street address, city, county, ZIP
- Phone, where published
- Email, where published
- Issue and expiration dates
- License status
Access opens as soon as you pay. We never add what a record didn't publish. See a sample record.
Who calls a new license in Black Diamond, WA
A new license is the moment a contractor needs everything at once: general liability and workers' comp, a surety bond, a supplier account, job-management software, a bookkeeper, a line of credit. Agents, bonding companies, suppliers, software tools, accountants and lenders use this feed to reach Plumbing contractors in Black Diamond, WA before anyone else has. Who it's for.
Questions
Where can I find a list of licensed contractors in Black Diamond, WA?
This page shows the latest Plumbing contractors licensed in Black Diamond, WA, with contact details partly hidden, free. The full list comes with the feed or a one-time CSV pack, with phone, email and address where the licensing records publish them.
How many new Plumbing contractors are there in Black Diamond, WA?
1 licenses in the last 30 days and 1 in the last 90, with the most recent on October 9, 2026. We hold 12 licenses here in all.
Do these records include phone numbers and email addresses?
Where the licensing records publish them: 100% of the licenses new here in the last 30 days carry a phone number and 0 carry an email address. Some states publish neither, and a record never shows a value the source did not print.
How often is this list updated?
Every day. New licenses are read from the licensing records each morning, and a renewal never counts as new.
What does it cost to see the full list?
Washington's full feed is $29 a month, or $99 a month for every state. Every license on record here is also sold once as a CSV for $19.
What does Washington's coverage include?
It covers registered contractors that are business entities, plus Seattle and Everett; sole proprietors are left out, as state law on lists of individuals requires.
Compiled from public licensing records. Before calling or emailing anyone on this list you are responsible for complying with the TCPA, Do Not Call rules, CAN-SPAM and any state limit on using licensee lists. Terms.