Mammoth Mechanical LLC - Portland, Oregon
Oregon CCB license #246729 - Mammoth Mechanical LLC - Portland, Oregon. License status: Active. Valid through October 23, 2027.
Portland, Multnomah County · RMI: Lawrence William Wiedefeld · CCB since 2023 · 2 yrs
Trust Score for Mammoth Mechanical LLC - 73/100 Good
Mammoth Mechanical LLC meets Oregon CCB requirements. Verify bond and insurance expiration dates before hiring.
- Active CCB license +40 pts
- 1–2 years active (2 yrs) +3 pts
- Surety bond current +8 pts
- Bond above legal minimum +4 pts
- Liability insurance current +8 pts
- Insurance above legal minimum +5 pts
- Responsible Managing Individual identified +3 pts
- Phone number on record +2 pts
Commercial Specialty Contractor in Portland, Oregon Since 2023
Mammoth Mechanical LLC is a commercial specialty contractor based in Portland, Oregon, licensed by the Construction Contractors Board. The company operates under CCB license #246729 and serves commercial clients throughout Multnomah County.
Services:
- Commercial mechanical systems installation and maintenance
- HVAC system design and service
- Commercial specialty contracting
Mammoth Mechanical LLC serves the Portland and Multnomah County area and maintains active CCB standing.
CCB #246729 - licensed, bonded ($55,000) and insured ($1,000,000) under Oregon law.
Oregon CCB License #246729 - Mammoth Mechanical LLC
Oregon CCB license #246729 is currently Active - registered since October 2023 and valid through October 23, 2027.
Contact & Address
Portland, OR 97220
Bond & Insurance
The bond and insurance protect you in different situations - learn what each one covers →
Surety Bond
Liability Insurance
Oregon contractor bond and liability insurance requirements vary by license type, project scope, and risk exposure. Homeowners comparing contractors often review bond coverage limits, insurer reputation, and active policy status before signing a construction contract.
Oregon Business Registration
Includes name history, members & managers, and annual report filing history
Before You Hire
- Confirm the license is Active and hasn't expired.
- Check that bond and insurance are current - dates are listed above. Bond and insurance cover different risks →
- Confirm the RMI (Responsible Managing Individual) will be on-site.
- Always get a written contract referencing CCB license #246729.
- Cross-verify with the official CCB database - data here may have a delay.
- CCB Lookup does not include complaint or disciplinary history. For complaint records, check the official CCB search →
Protect your home improvement project
Surety bond protection
Oregon's surety bond covers incomplete or defective work up to the bond limit. File a claim with the Oregon CCB within 2 years of project completion. How to file a bond claim →
General liability insurance
General liability covers property damage and bodily injury during the project. Ask for a COI (Certificate of Insurance) listing your address as an additional insured location.
Written contract required
Oregon law requires a written contract for residential projects over $2,000. It must include the CCB number, scope of work, and payment schedule. Contract requirements →
Workers' compensation coverage
Contractors with employees in Oregon are required to carry workers' compensation insurance. If a worker is injured on your property without coverage, you may bear liability. Verify coverage status before work begins.
Homeowners typically compare multiple licensed contractors before starting a project.
Before you hire
Verify this contractor carries active general liability insurance and a current surety bond. Request a Certificate of Insurance (COI) listing your property before any work begins. Oregon contractors must maintain minimum coverage - an Active license does not guarantee current insurance.
Compare contractor quotes
Before hiring, get 2–3 written estimates from licensed Oregon contractors. Compare Commercial Specialty Contractors Level 1s in Portland to ensure competitive pricing.
Find Commercial Specialty Contractors Level 1 nearbyVerify on CCB.oregon.gov
Always confirm directly with the Oregon CCB before signing a contract. Official data is updated in real time.
Official CCB RecordQuick Summary
- Status Active
- License # #246729
- Type CSC1
- County Multnomah
- RMI Lawrence William Wiedefeld
- Bond $55K
- Insurance $1M
- Lic. expires October 23, 2027
- Bond expires October 23, 2027
- Ins. expires August 11, 2027
- Last updated May 11, 2026
- Synced May 28, 2026
Last updated = last detected change in CCB records. Synced = last fetch from the Oregon CCB Open Data Portal. Data may lag up to 24h.
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Other CSC1 in Multnomah
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Record first imported: February 23, 2026 · Last data change detected: May 11, 2026 · Synced with CCB Open Data: May 28, 2026. Always verify at CCB.oregon.gov before hiring.