Hermanson Company LLP
REGISTEREDPlumbing/Heating & A/C Contractors · Kent, WA
Hermanson Company LLP is registered with the State of Iowa (No. C146118), current through 2029-06-30. Registration is not a license or an assessment of skill. Check the State record.
Phone · State record
(206) 627-5088At a glance
- What they do
- Mechanical Construction · Design-build engineering · Lean Fabrication · Service & Maintenance · HVAC Sheet Metal · HVAC Piping · Plumbing · Medical & Laboratory Gas Business website
- Registered in
- Kent, WA State record
- Website
- hermanson.com Business website
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This contractor is based in WA and holds an Iowa contractor registration, which is required to perform construction work in Iowa.
Get to know this business
Work & references
Explore their projects, social profiles and original sources.
Explore their work
Original galleries and public posts. A reference is not proof of who performed a job or its outcome.
Work reference
Special ProjectsLinked from the business website · hermanson.com
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ProjectsLinked from the business website · hermanson.com
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Providence Cymbaluk TowerLinked from the business website · hermanson.com
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H5 Data Center RenovationLinked from the business website · hermanson.com
More work references (25)
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Harrison Hospital Acute Care ExpansionLinked from the business website · hermanson.com
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Intergate.Seattle - Sabey Data Center 42Linked from the business website · hermanson.com
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Tacoma General Hospital, Rainier & Milgard Towers ExpansionLinked from the business website · hermanson.com
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Washington State Public Health LabsLinked from the business website · hermanson.com
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Helios Apartments @ 2nd & PineLinked from the business website · hermanson.com
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5th & Columbia, F5 TowerLinked from the business website · hermanson.com
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425 FairviewLinked from the business website · hermanson.com
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Amazon Headquarters Phases 6 & 8Linked from the business website · hermanson.com
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Sound Transit Operations and Maintenance Facility East (OMFE)Linked from the business website · hermanson.com
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Seatac Airport North Satellite Expansion RenovationLinked from the business website · hermanson.com
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Discovery Hall, University of Washington BothellLinked from the business website · hermanson.com
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Russell T. Joy Building, University of Washington TacomaLinked from the business website · hermanson.com
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Vashon School DistrictLinked from the business website · hermanson.com
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Alaska Airlines Concourse C Boardroom at SeaTac AirportLinked from the business website · hermanson.com
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Highline Heritage Museum RemodelLinked from the business website · hermanson.com
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IKEA Retail Store RelocationLinked from the business website · hermanson.com
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L'Oreal Clarisonic at Bear CreekLinked from the business website · hermanson.com
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Salish Lodge RemodelLinked from the business website · hermanson.com
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Amazon 501 FairviewLinked from the business website · hermanson.com
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Tech Kirkland TI Phase D1Linked from the business website · hermanson.com
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800 5th Lobby Tenant ImprovementLinked from the business website · hermanson.com
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BECU Corporate Office RemodelLinked from the business website · hermanson.com
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Liberty MutualLinked from the business website · hermanson.com
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Tech Tenant Improvement at Yale & ThomasLinked from the business website · hermanson.com
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Russell Investments Center Tenant ImprovementsLinked from the business website · hermanson.com
Around the web
Read customer stories and reviews at their source. Registration, documents and badges do not establish workmanship or current insurance.
Business profile
FacebookLinked from the business website · facebook.com
Business profile
LinkedInLinked from the business website · linkedin.com
Business profile
YouTubeLinked from the business website · youtube.com
Business profile
Google BusinessLinked from the business website · google.com
About Hermanson Company LLP
From hermanson.com
- In business since 1979
- Emergency service
Services listed on their website
- Mechanical Construction
- Design-build engineering
- Lean Fabrication
- Service & Maintenance
- HVAC Sheet Metal
- HVAC Piping
- Plumbing
- Medical & Laboratory Gas
- Process Piping
- Specialty Metals
- Prompt & listen to the client's needs
- Clearly communicate systems appearance and integration
- Website:
- hermanson.com
- Email on their website:
- contact@hermanson.com
- Other number on their website:
- (800) 235-6218
Read from the business’s own website (hermanson.com). We have not verified it and this business has not claimed this listing. Is this your business? Claim it free to edit or remove anything here, or request a correction.
Trade and local directory
What Hermanson Company LLP is registered to do
The State classifies Hermanson Company LLP as plumbing/heating & a/c contractors. That classification comes from the registration itself, not from us. It describes the work the business registered to perform, and it is not an assessment of skill or a limit on what they may quote for.
2026-07-01
registration last issued or renewed with the State
1,509
registered plumbing/heating & a/c contractors in Iowa, this business among them
plumbing, HVAC & mechanical work is separately licensed in Iowa. The registration above is a compliance filing; the Iowa Plumbing & Mechanical Systems Board ↗ runs the exam that actually tests competence. Ask for the license number and check it there, for this trade it is the strongest signal available.
All 1,509 registered plumbing/heating & a/c contractors in Iowa →
State registration details
- Registration number
- C146118
- Status
- Registered
- Issued / last renewed
- 2026-07-01
- Expires
- 2029-06-30
- Primary trade
- Plumbing/Heating & A/C Contractors
- Issuing authority
- DIAL
Sourced from the Active Iowa Construction Contractor Registrations (Iowa Code ch. 91C), last updated 2026-11-02. Verify this registration with the State of Iowa. How to check a registration yourself.
Sources for this profile
- Registration: Active Iowa Construction Contractor Registrations, last updated 2026-11-02. Verify registration C146118
- About the business: read from its website, hermanson.com/about-us/contact. Not written or confirmed by the business.