Things That Fail a Home Inspection

Depending on whether you’re buying or selling a home, the words “home inspection” tend to bring either some much-needed relief or sheer dread. One the one hand, a good inspection gives home buyers peace of mind, but for sellers, it can also reveal the kinds of red flags that kill deals or spark tough negotiations. So, what are the most common things that fail a home inspection — and how can you prepare for them? We’re breaking them down right here.
First Things First…What Is a Home Inspection?
A home inspection is a top-to-bottom evaluation of a property’s condition that’s typically carried out before closing. During this process, a licensed inspector checks the structure, systems, and safety of the home so buyers know exactly what they’re getting into. In other words? Think of it as a health checkup for the house.
Speaking of evaluating things, what about real estate agent red flags? Here are some real estate agent red flags to look for when hiring an agent.
What Do Home Inspectors Look For?
Inspectors are trained to spot problems you may overlook. And for that reason, they focus on areas that impact safety, functionality, and long-term costs. Here’s where things often go wrong:
1. Roof Damage
Between missing shingles, leaks, poor drainage, or old age, roofs are a big-ticket item. If your roof is at the end of its lifespan, expect it to come up.
2. Electrical Issues
Outdated wiring, double-tapped breakers, or missing GFCI outlets can all raise red flags. Electrical problems aren’t just costly — they’re safety hazards.
3. Plumbing Problems
Leaky pipes, low water pressure, or old polybutylene piping are notorious inspection killers. Water damage = instant deal-breaker for many buyers.
4. HVAC Trouble
If the furnace is ancient or the AC isn’t cooling, inspectors will flag it. Buyers may ask for a replacement, or simply walk away.
5. Foundation Cracks
Minor settling is normal. Large cracks, uneven floors, or doors that don’t shut properly? That’s when buyers start to panic.
6. Mold & Water Damage
Basements, attics, and bathrooms are prime spots for hidden mold. It not only fails inspections; it can tank buyer interest instantly.
Craving more insights around buying and selling? Check out these posts next:
- Are There Tax Implications of Selling a House Below Market Value?
- How Do Realtors Determine How to Price a Home?
- How to Buy Your First House in DC
What Is a 4-Point Home Inspection?
In some cases (especially for insurance purposes), inspectors focus only on four areas: roof, plumbing, electrical, and HVAC. Knowing how to pass a 4-point home inspection means making sure those core systems are functional, safe, and up to code.
What Fixes Are Mandatory After a Home Inspection?
Here’s the truth: no fixes are legally mandatory. But lenders and insurers may require repairs tied to safety and habitability (think: roof leaks, electrical hazards, and broken furnaces). Cosmetic issues — like paint or carpet — usually don’t raise the stakes.
When to Walk Away After a Home Inspection
Buyers often ask: “When is it smart to back out?” The answer depends on your budget, tolerance for risk, and the market. But in short — major structural damage, pervasive mold, or systems that all need replacing at once are common reasons to walk away after a home inspection.
The Bottom Line
The most common things that fail a home inspection usually come down to major systems: the roof, plumbing, electrical, HVAC, foundation, and water damage. For sellers, addressing small issues upfront can keep a deal alive. For buyers, knowing when to negotiate (or when to walk) is key.
Gearing up to buy or sell this fall? The team at Jenn Smira & Co has got your back every step of the way. Get in touch today by filling out the form on this page, calling us at 202.280.2060, or emailing us at connect@jennsmira.com.

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