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Minnesota contractor license
Master Mobile Home Service Inc
Master Mobile Home Service Inc of Blaine holds Minnesota license MB003380 (Mechanical Contractor Bond). The DLI file dated Nov 1, 2026 lists it as active.1 It expires Sep 3, 2028.
Licensed 17 years, longer than 76% of 26 active Blaine HVAC contractors.
Active
Master Mobile Home Service Inc, Blaine
- License
- MB003380
- Class
- Mechanical Contractor Bond
- Expires
- Sep 3, 2028
- Bond
- On file to Sep 3, 2028
DLI file dated Nov 1, 2026
From the DLI file dated Nov 1, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
The DLI file doesn't list board actions. Check with the board: DLI license lookup
What bond, insurance and workers' comp are on file?
Bond, liability insurance and workers' comp aren't in the DLI file. Check with the board
What work does this license cover?
License level: Mechanical Contractor Bond. Issued Aug 19, 2009.
Which other Blaine businesses hold Mechanical Contractor Bond?
- Air Comfort Specialists IncLicensed since 2009
- Wencl Services IncLicensed since 2009
- Minneapolis St Paul Mechanical LLCLicensed since 2009
- Plumbing Solutions IncLicensed since 2009
- Sunderland Plumbing IncLicensed since 2009
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. Minnesota license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. The DLI file doesn't record workers' comp, so ask for the certificate.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the DLI shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the DLI, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Department of Labor and Industry (DLI).
- Check another contractor. Minnesota license lookup
Sources
- DLI license and registration export (dli.mn.gov, Nov 1, 2026)
- Department of Labor and Industry (DLI)