Best Fire-protection contractors in Seattle, WA
A ranked shortlist of licensed fire-protection contractors for someone hiring or vetting in Seattle. Ranked on an active L&I class for the work and job-relevant Seattle permits, not reviews, ads, or a workmanship guarantee.
Seattle permit records through 2026-08-27, verified against the Washington State Department of Labor & Industries licensing records, snapshot dated 2026-08-16. Ranking reflects license standing and permit history, not a workmanship guarantee. This week's Seattle permit activity.
Which fire-protection contractor has pulled the most fire-protection permits in Seattle?
Reliance Fire Protection Inc has pulled the most fire-protection permits in Seattle of any firm holding the matching L&I class: 138 permits, most recently in 2026. It has held L&I license RELIAFP102L1 for 36 years.
That count includes only permits whose type matches fire-protection work in Seattle's own records, and only firms that hold the matching L&I class as a primary or tied specialty, so a firm with a larger pile of unrelated permits does not rank here. Permits are counted per license number, and a firm holding several licenses is counted on its busiest one. Seattle records run through 2026-08-27.
See Reliance Fire Protection Inc's license and permit record →| Rank | Firm | License | Relevant permits | Most recent |
|---|---|---|---|---|
| 1 | Reliance Fire Protection Inc | L&I RELIAFP102L1 | 138 | 2026-08-20 |
| 2 | Viking Auto Sprinkler Co | L&I VIKINAS373NT | 112 | 2026-05-26 |
| 3 | Crown Fire Protection Inc | L&I CROWNFP044LL | 104 | 2026-08-21 |
| 4 | Cascadia Fire Protection LLC | L&I CASCAFP833L2 | 98 | 2026-08-19 |
| 5 | Ace Fire System LLC | L&I ACEFIFS908M3 | 64 | 2026-08-15 |
| 6 | Eclipse Fire Sprinklers LLC | L&I ECLIPFS783DP | 26 | 2026-06-22 |
| 7 | Stewart Fire Protection LLC | L&I STEWAFP893PR | 17 | 2022-07-14 |
| 8 | Advanced Fire Protection Inc | L&I ADVANFP199B6 | 17 | 2022-05-17 |
| 9 | Advanced Fire Protection LLC | L&I ADVANFP772QC | 17 | 2022-05-17 |
| 10 | Fire Protection Systems LLC | L&I FIREPSL981K9 | 16 | 2026-03-26 |
| 11 | Empire Fire Protection | L&I EMPIRFP786OK | 16 | 2026-03-09 |
| 12 | First Fire Protection | L&I FIRSTFP756CL | 16 | 2021-12-10 |
| 13 | Valor Fire Protection LLC | L&I VALORFP777JP | 11 | 2025-12-29 |
| 14 | Evergreen Fire Protection Inc | L&I EVERGFP967LZ | 9 | 2026-04-01 |
| 15 | Burns Fire Prtctn Systems Inc | L&I BURNSFP841DU | 6 | 2016-01-13 |
| 16 | Unlimited Mechanical Inc | L&I UNLIMMI093M6 | 4 | 2018-09-17 |
| 17 | First Defense Fire Prot LLC | L&I FIRSTDF981RP | 4 | 2018-04-06 |
| 18 | Element Fire Sprinklers LLC | L&I ELEMEFS773DL | 2 | 2026-05-28 |
| 19 | Shilo Automatic Sprinkler Inc | L&I SHILOAS113MS | 2 | 2021-04-28 |
| 20 | American Sprinkler Corporation | L&I AMERISC087NC | 2 | 2019-12-09 |
Get a shortlist matched to your address
First one freeThis page ranks all of Seattle. Enter your address and we'll narrow it to fire-protection contractors who have pulled permits near you, check every license for standing and disciplinary history, and hand back a ranked shortlist you can call.
No card needed. See a finished report first if you'd rather.
Top 20 fire-protection contractors by Seattle permit history
Reliance Fire Protection Inc
L&I RELIAFP102L1Preston, WA
36 yrs licensed138 relevant permits312 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Viking Auto Sprinkler Co
L&I VIKINAS373NTSeattle, WA
63 yrs licensed112 relevant permits214 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Crown Fire Protection Inc
L&I CROWNFP044LLMill Creek, WA
30 yrs licensed104 relevant permits556 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Cascadia Fire Protection LLC
L&I CASCAFP833L2Puyallup, WA
9 yrs licensed98 relevant permits575 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Ace Fire System LLC
L&I ACEFIFS908M3Buckley, WA
16 yrs licensed64 relevant permits93 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Eclipse Fire Sprinklers LLC
L&I ECLIPFS783DPAlgona, WA
4 yrs licensed26 relevant permits50 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Stewart Fire Protection LLC
L&I STEWAFP893PRSnohomish, WA
14 yrs licensed17 relevant permits52 total permitsLast permit 2022Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Advanced Fire Protection Inc
L&I ADVANFP199B6Woodinville, WA
45 yrs licensed17 relevant permits355 total permitsLast permit 2022Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Advanced Fire Protection LLC
L&I ADVANFP772QCLewiston, ID
2 yrs licensed17 relevant permits355 total permitsLast permit 2022Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Fire Protection Systems LLC
L&I FIREPSL981K9Kent, WA
24 yrs licensed16 relevant permits59 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Empire Fire Protection
L&I EMPIRFP786OKBremerton, WA
3 yrs licensed16 relevant permits21 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →First Fire Protection
L&I FIRSTFP756CLWashougal, WA
1 yr licensed16 relevant permits16 total permitsLast permit 2021Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Valor Fire Protection LLC
L&I VALORFP777JPSandpoint, ID
3 yrs licensed11 relevant permits14 total permitsLast permit 2025Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Evergreen Fire Protection Inc
L&I EVERGFP967LZPuyallup, WA
22 yrs licensed9 relevant permits126 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Burns Fire Prtctn Systems Inc
L&I BURNSFP841DUGranite Falls, WA
10 yrs licensed6 relevant permits31 total permitsLast permit 2016Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Unlimited Mechanical Inc
L&I UNLIMMI093M6Marysville, WA
35 yrs licensed4 relevant permits12 total permitsLast permit 2018Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →First Defense Fire Prot LLC
L&I FIRSTDF981RPSnohomish, WA
23 yrs licensed4 relevant permits41 total permitsLast permit 2018Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Element Fire Sprinklers LLC
L&I ELEMEFS773DLOrting, WA
3 yrs licensed2 relevant permits2 total permitsLast permit 2026Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →Shilo Automatic Sprinkler Inc
L&I SHILOAS113MSNampa, ID
37 yrs licensed2 relevant permits2 total permitsLast permit 2021Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →American Sprinkler Corporation
L&I AMERISC087NCSnohomish, WA
34 yrs licensed2 relevant permits48 total permitsLast permit 2019Permit types: Fire Sprinkler And Suppression
View license, permit history & disciplinary records →
Most established Seattle fire-protection contractors
Longest-licensed firms based in Seattle that hold the right L&I class, oldest license first.
Veteran Fire Systems LLC
L&I VETERFS760P5Seattle, WA
1 yr licensedView license, permit history & disciplinary records →
How this ranking works
Organic results require an active L&I license, the correct class for the trade as the firm's primary or tied fit (a mechanical company that also holds an electrical license does not lead the electrician list), and at least one job-relevant building permit in this city's records. They are ranked by the number of relevant permits, then by how recently the firm worked, then by how long the firm has been licensed. This reflects license standing and real permit history - it is not a workmanship guarantee. L&I does not publish a disciplinary file, so a clean record is not part of this ranking. Promoted entries, when present, are paid placements and are not scored by these rules.
Confidence: high. The permit type and the license class both match this trade.
Frequently asked questions
- Which fire-protection contractor has pulled the most fire-protection permits in Seattle?
- Reliance Fire Protection Inc has pulled the most fire-protection permits in Seattle of any firm holding the matching L&I class: 138 permits, most recently in 2026. It has held L&I license RELIAFP102L1 for 36 years. That count includes only permits whose type matches fire-protection work in Seattle's own records, and only firms that hold the matching L&I class as a primary or tied specialty, so a firm with a larger pile of unrelated permits does not rank here. Permits are counted per license number, and a firm holding several licenses is counted on its busiest one. Seattle records run through 2026-08-27.
- How are the best fire-protection contractors in Seattle ranked?
- Organic results require an active L&I license, the correct class for the trade as the firm's primary or tied fit (a mechanical company that also holds an electrical license does not lead the electrician list), and at least one job-relevant building permit in this city's records. They are ranked by the number of relevant permits, then by how recently the firm worked, then by how long the firm has been licensed. This reflects license standing and real permit history - it is not a workmanship guarantee. L&I does not publish a disciplinary file, so a clean record is not part of this ranking. Promoted entries, when present, are paid placements and are not scored by these rules.
- Is this ranking a guarantee of quality or workmanship?
- No. It reflects Washington State Department of Labor & Industries license standing, longevity, and real building-permit history - not the quality of any individual job. Always verify a contractor on the official L&I Verify a Contractor and check references before hiring.
- How current is this Seattle contractor data?
- Seattle permit records through 2026-08-27, verified against the Washington State Department of Labor & Industries licensing records, snapshot dated 2026-08-16. The two datasets age separately: the board publishes licensing snapshots on its own cadence, and Seattle publishes permits on its own. This page regenerates daily.