Minnesota
Construction Defect Investigation
Independent investigation of defective construction: foundations, framing, drainage, concrete and site work.
What the work involves
When a new home, building or site improvement performs poorly, an engineer investigates whether design or construction departed from plans, codes and industry standards. Work includes document review, inspection, measurements, destructive testing where needed, and a report on causes and repair costs. Reports support warranty claims, negotiations, and litigation, and many states have right-to-repair statutes that set notice steps before suit.
Local conditions we plan for
- Deep frost penetration and frost heave
- Heavy snow loads
- Riverine and spring snowmelt flooding (Red River)
- Peat and soft organic soils
Building code: 2018 IBC/IRC adopted at the state level (ICC adoption chart, April 2026).
When you need it
- Cracking, settlement or water problems in new construction
- Builder disputes the cause of a problem
- HOA transition study before taking control from a developer
- Warranty claim deadline approaching
Frequently asked questions
How much does construction Defect Investigation cost?
Across the US, construction Defect Investigation usually costs $1,500 to $25,000. Estimate. Single-home investigations are at the low end; multi-building HOA claims cost more. Hourly rates for experts follow SEAK survey ranges.
How long does construction Defect Investigation take?
Plan on 2 to 12 weeks from signed proposal to stamped deliverables, longer if a site visit, soil testing or a permit review cycle is involved.
Is a permit required for construction Defect Investigation?
Often not on its own, but the findings frequently lead to work that does need a permit. We tell you which parts of the follow-up work your local building department will review, and can prepare those drawings too.
How do I verify an engineer's license in Minnesota?
Engineers practicing in Minnesota are licensed by the Minnesota Board of Architecture, Engineering, Land Surveying, Landscape Architecture, Geoscience and Interior Design (AELSLAGID). You can confirm a license number and its status in the board's public license search before you sign a contract.
How deep is the frost line in Minnesota?
Minnesota Rule 1303.1600 sets minimum footing depth for frost protection at 60 inches in Zone I (northern counties) and 42 inches in Zone II (southern and metro counties), unless an engineer competent. Local building departments set the required footing depth, so confirm the exact figure for your county before designing foundations or retaining walls.
Which building code applies in Minnesota?
2018 IBC/IRC adopted at the state level (ICC adoption chart, April 2026). Cities and counties can add local amendments, which is one reason to hire an engineer who works in your area.