COMPANY RECORD · BELLEVUE, WA
Knockout Plumbing & Mech LLC — permit history in Bellevue, WA
Knockout Plumbing & Mech LLC appears on 9 Bellevue permit records from 2022 through 2026, most often plumbing (88.9% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Plumbing | 8 | 88.9% |
| Mechanical / HVAC | 1 | 11.1% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 3 |
Busiest year on record: 2026, with 3 permits. One project can account for several filings, so read this as filing activity rather than workload.
PROJECTS AHEAD SEARCH
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This page is a snapshot of Knockout Plumbing & Mech LLC. The search behind it holds more than 131,466 Bellevue permits naming a contractor, since 2015: 61,207 electrical permits, 32,396 mechanical (HVAC) permits, 19,696 plumbing permits, 13,557 building permits, 4,610 fire protection permits.
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Where they worked
| Address in source | Most recent permit |
|---|---|
| 16819 SE 3rd Pl | 2026-09-14 |
| 106 165th Ave SE | 2026-04-06 |
| 223 145th Pl NE | 2024-10-18 |
| 12649 NE 7th St | 2024-08-19 |
| 11651 SE 58th St | 2023-11-03 |
| 4748 133rd Ave SE | 2022-06-20 |
6 distinct addresses on record. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Also named on permits at the same addresses
| Company | Shared addresses | Years |
|---|---|---|
| Kemly Electric Inc | 2 | 2025–2026 |
| George Gas Piping LLC Georgiy Abdulfaizov | 2 | 2024–2026 |
| Brennan Heating & A/C LLC Darrin Paul Erdahl | 2 | 2022–2023 |
| Rainier Wiring LLC | 1 | 2024 |
| Innovative Air Heatng & AC LLC Pavlo Derevyanyy | 1 | 2024 |
| Panel Pros Electric LLC | 1 | 2024–2025 |
| Overlake Htg A/C & Shtmtl LLC | 1 | 2024–2026 |
| Edm Electric LLC | 1 | 2024–2025 |
Companies that also appear in Bellevue permit records at addresses where Knockout Plumbing & Mech LLC filed, in any year. Sharing an address is a documented co-appearance, not proof that they worked on the same project or with each other.
Permits on record
9 permits; open the full list
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 26 121354 BK | 2026-09-14 | Mechanical / HVAC | 16819 SE 3rd Pl | A Single Family Residential Alteration to Existing Structure None Project Involving (1 Logs, 1 Gas Piping Only (No fixtures)) | |
| 26 121355 BN | 2026-09-14 | Plumbing | 16819 SE 3rd Pl | A Single Family Residential Repair or Replacement None Project Involving (3 Toilet, 3 Bathroom Sink, 1 Dishwasher, 1 Clothes Washer, 2 Shower, Tub, or Combo, 1 Kitchen Sink, 2 Laun | |
| 26 108240 BN | 2026-04-06 | Plumbing | 106 165th Ave SE | A Single Family Residential Repair or Replacement None Project Involving (3 Toilet, 4 Bathroom Sink, 1 Dishwasher, 1 Clothes Washer, 3 Shower, Tub, or Combo, 1 Kitchen Sink, 1 Laun | |
| 25 124415 BN | 2025-10-07 | Plumbing | 16819 SE 3rd Pl | A Single Family Residential Repair or Replacement None Project Involving (1 Water Service - 1") | |
| 24 125359 BN | 2024-10-18 | Plumbing | 223 145th Pl NE | A Single Family Residential Alteration to Existing Structure None Project Involving (1 Toilet, 1 Bathroom Sink, 1 Shower, Tub, or Combo) | |
| 24 119512 BN | 2024-08-19 | Plumbing | 12649 NE 7th St | A Single Family Residential Repair or Replacement None Project Involving (1 Water Service - 1", 1 Pressure Reducing Valve) | |
| 23 123506 UA | 2023-11-03 | Plumbing | 11651 SE 58th St | Tie in ADU sewer main into neighbors yard SDR35. Directionally bore new 1inch PEX water main from front of house to backyard garage. Travel; setup of drill; vac system. Installatio | |
| 23 123790 BN | 2023-10-18 | Plumbing | 11651 SE 58th St | A Single Family Residential Alteration to Existing Structure None Project Involving (1 Toilet, 1 Bathroom Sink, 1 Shower, Tub, or Combo, 1 Kitchen Sink, 1 Water Heater Electric < 6 | |
| 22 113404 BN | 2022-06-20 | Plumbing | 4748 133rd Ave SE | A Single Family Residential Alteration to Existing Structure None Project Involving (1 Water Service - 1") |
Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.
Source and limits
Public Bellevue permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →
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