Giertsen Company

What They Do

Water DamageMoldFire and SmokeStorm

• Fire damage cleanup & repair
• Remodeling
• Water damage-related cleanup & repair
• Water damage-related mold removal
• 24/7 Emergency Assistance
• Antimicrobial Treatment
• Apartments & Condos
• Asphalt Shingle
• Assisted Living
• Capital Improvements
• Commercial Repair
• Construction & Renovations
• Contingency Planning
• Disaster Response
• Disaster Restoration
• Emergency Response
• Exterior Services
• Facility Management
• Flood Restoration
• Full Service Restoration
• Glass Replacement
• Insurance Restoration
• Metal Roof
• New Construction
• Odor Damage
• Property Cleaning
• Real Estate Management
• Reconstruction Restoration

Before You Call Giertsen Company

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. How will you deal with smoke odor inside wall cavities and the HVAC ducts?

Ask for a Minnesota residential contractor or remodeler license and look it up with the Department of Labor and Industry, or a Wisconsin dwelling contractor credential across the river. Also ask for proof of insurance and industry certification for the restoration crew.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proThe First 48 Hours After a House FireWhat to do in the first two days after a house fire. Safe re-entry, utilities, insurance calls, securing the home, food, medicine and what never to clean.
• DIY with careEmergency Roof Tarping After a StormHow to tarp a storm damaged roof safely, what to buy, how far the tarp must run, how to fasten it so wind cannot lift it, and when to leave the roof to a pro.