Klamm Mechanical Contractors Inc

Klamm Mechanical Contractors Inc of Burnsville holds Minnesota license HC000034 (HPP Contractor High Pressure Piping Contractor). The DLI file dated Nov 1, 2026 lists it as active.¹ It expires Dec 31, 2027.

Active

Klamm Mechanical Contractors Inc, Burnsville

License: HC000034
Class: HPP Contractor High Pressure Piping Contractor
Expires: Dec 31, 2027

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: High Pressure Piping. Issued Jan 9, 2001.

HPP Contractor High Pressure Piping Contractor

What other licenses does this business hold?

Klamm Mechanical Contractors Inc.IR652868 · REG · Active
Klamm Mechanical Contractors IncL2119 · MPCA Pipelaying Bond · Active
Klamm Mechanical Contractors IncMB005355 · Mechanical Contractor Bond · Active
Klamm Mechanical Contractors IncPC645761 · Plumbing Contractor · Active

Which other Burnsville businesses hold HPP Contractor High Pressure Piping Contractor?

Area Mechanical LLCLicensed since 2022

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)