Published: 2026-03-06 | Home Inspector New Ulm
Why New Construction Homes Need an Independent Inspection
Many buyers assume that a brand-new home does not need a home inspection. The builder had plans approved by the city. Building inspectors signed off at each phase. Everything is new, so what could be wrong?
More than you think.
What We Find in New Construction Inspections
Based on our experience inspecting new homes in the New Ulm, Mankato, St. Peter, and southern Minnesota area, we find reportable issues in the vast majority of new construction inspections. These are not minor cosmetic items. They include:
Structural and Framing
- Missing joist hangers and structural connectors
- Improperly notched or drilled floor joists and studs
- Missing or incorrectly installed sheathing
- Beam and post connections that do not meet manufacturer specifications
Roofing
- Missing kick-out flashing at roof-to-wall transitions (a leading cause of water intrusion)
- Improperly installed flashing around plumbing vents and exhaust fans
- Incorrect shingle exposure or nailing patterns
- Missing or improperly sized attic ventilation
Plumbing
- Drain pipes with incorrect slope (they look fine but will cause slow drains and backups)
- Missing P-traps or S-traps instead of code-required P-traps
- Improperly supported water supply lines
- Missing expansion tanks on closed water systems
Electrical
- Missing AFCI protection on required circuits
- Incorrectly wired three-way switches
- Missing weather-in-use covers on exterior outlets
- Insufficient outlet spacing (6-foot rule for living spaces, 4-foot rule for kitchen countertops)
HVAC
- Disconnected or leaking ductwork in attic or crawl space
- Missing combustion air supply for furnaces in tight enclosures
- Condensate drain lines not properly routed or connected
- ERV/HRV systems installed but not properly ducted
Why City Building Inspectors Do Not Catch Everything
Municipal building inspectors serve an important role, but they have limitations:
- They verify code compliance at the time of inspection, but work done after their visit may not comply
- They inspect in phases. What is covered up between phases is not re-inspected
- They are checking that minimum code requirements are met, not that best practices are followed
- They have heavy workloads and limited time per inspection
- Their inspection does not protect you. Their duty is to the municipality, not to you as the buyer
When to Schedule Your New Construction Inspection
Ideally, we inspect at two stages:
- Pre-drywall inspection - After framing, rough electrical, rough plumbing, and HVAC are installed but before drywall is hung. This is when the most critical work is visible and correctable
- Final inspection - After the home is complete but before your final walkthrough with the builder. This is your last opportunity to identify issues before closing
Your Builder Should Welcome an Independent Inspection
Quality builders have nothing to hide and often appreciate an independent set of eyes. The inspection protects both you and the builder by identifying issues that can be corrected before they become warranty claims or worse.
New Construction Inspections in Southern Minnesota
We inspect new construction throughout New Ulm, Mankato, North Mankato, St. Peter, Lake Crystal, Eagle Lake, Nicollet, and all of southern Minnesota.
Call (507) 205-7067 to schedule before your builder's final walkthrough.
Ready to Schedule Your Inspection?
Serving New Ulm, Mankato, St. Peter, and all of Southern Minnesota
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