Pittsburgh has a lot of gorgeous old housing stock — brick colonials in Squirrel Hill, Victorians in Allegheny West, sturdy little frame houses tucked into hillsides all over the South Hills and North Side. That character is part of why people fall in love with this city. It also means a home inspection here tends to turn up a predictable handful of issues that newer-construction buyers in other markets rarely think about. None of them are automatically deal-breakers. But knowing what’s coming before your inspector shows up saves you a lot of stress on inspection day.
Radon: the one that surprises almost everyone
Allegheny County sits in the EPA’s Zone 1 — the highest radon-risk category in the country — and the average tested indoor level here runs well above the EPA’s action threshold of 4.0 pCi/L. This isn’t a Pittsburgh myth or an inspector upselling you; it’s genuinely common, especially in homes with basements built into a hillside, which describes a huge share of the region’s housing stock.
- A radon test is a standard add-on to most home inspections here, and I recommend it on nearly every purchase, older home or newer.
- An elevated result doesn’t mean the house is unsafe long-term — it means it needs a mitigation system, typically a vent pipe and fan that runs a few hundred dollars to a couple thousand to install.
- This is a very normal, very negotiable repair request. It’s rarely worth walking away over on its own.
Old wiring: knob-and-tube and beyond
Homes built before the 1950s in Pittsburgh sometimes still have remnants of knob-and-tube wiring, and even homes that have been updated may have a patchwork of old and new electrical work layered over decades of renovations. Your inspector will flag this because it matters for both safety and insurability.
- Some insurers won’t write a policy on a home with active knob-and-tube wiring, or they’ll require it be replaced within a set window after closing.
- A full rewire isn’t cheap, but a partial update focused on the panel and any actively knob-and-tube circuits is often more realistic and less disruptive than people assume.
- Ask your inspector directly whether what they found is decorative remnants of old wiring (common and low-priority) or actual live knob-and-tube circuits still in use (worth addressing before or shortly after closing).
Plumbing: galvanized pipe and clay sewer lines
Older Pittsburgh homes frequently still have some galvanized steel supply piping, which corrodes from the inside over decades and gradually restricts water flow — that’s usually what’s behind mysteriously low water pressure in an older house. Cast iron or clay sewer laterals, especially on hillside lots or near mature trees, are also worth a closer look.
- A general home inspection typically doesn’t include a sewer scope. On an older home, especially one with big trees near the sewer line’s path to the street, I usually recommend adding one.
- Root intrusion into a clay lateral is a common and fixable issue, but it’s much better to know about it before closing than to discover it during your first backup.
- Galvanized pipe is rarely an emergency, but it’s a legitimate item to factor into your longer-term budget for the house.
- Another issue that can come up is a cracked or broken lateral. This is a bigger and more expensive fix, so it’s worth the couple of hundred dollars to know before you buy.
Hillside drainage and foundation movement
A lot of Pittsburgh’s most desirable streets are, geologically speaking, built on a hill — which means drainage and grading issues show up in inspections here more than they would on flat land. Look for how the inspector describes any foundation cracking (hairline settling cracks are extremely common and usually cosmetic) versus active water intrusion or signs of structural movement.
- Ask specifically whether a French drain, sump pump, or regrading is recommended, and get a rough sense of cost before you decide how to respond.
- A finished or semi-finished basement in a hillside home is worth extra attention — water problems are far more expensive to fix once drywall and flooring are involved.
- If the inspection raises real structural questions, it’s worth bringing in a structural engineer for a focused second opinion before you finalize your decision.
Aging roofs
Roofs on older homes are usually straightforward to evaluate, but Pittsburgh’s freeze-thaw winters are hard on them. Ask your inspector for their honest estimate of remaining roof life, not just a pass/fail. A roof with three to five years left isn’t a reason to walk away, but it is a reason to negotiate a credit or a price adjustment so you’re not caught paying for a full replacement out of pocket a year after you move in.
How to actually respond to inspection findings
The instinct a lot of buyers have is to panic at a long inspection report. Almost every older home generates one — that’s not a sign you found a bad house, it’s a sign you found an honest inspector. What matters is triage:
- Safety and structural issues get addressed first, either as a repair request, a credit, or a price adjustment.
- Systems nearing the end of their life (roof, water heater, furnace) are usually a negotiation point, not a walk-away point.
- Cosmetic and maintenance items go on your post-closing to-do list, not your negotiation list.
I walk every client through their report line by line so we’re negotiating from what actually matters, not reacting to every flagged item equally.
Frequently Asked Questions
Should I still buy a house in Pittsburgh if the radon level comes back high?
In most cases, yes. Elevated radon is extremely common here and is fixed with a mitigation system, not a reason to abandon an otherwise good house. It’s a standard, well-understood negotiation item.
Does a Pittsburgh home inspection include a sewer scope?
Not usually as a standard part of the inspection. On older homes, especially those with mature trees near the sewer line, I recommend adding one separately. They typically cost between $150-$250.
Is knob-and-tube wiring a deal-breaker?
Not automatically, but it can affect your ability to get homeowners insurance, so it’s worth clarifying with your inspector and your insurance agent early, ideally before you’re up against a tight closing timeline.
Are foundation cracks in older Pittsburgh homes normal?
Small, hairline settling cracks are common in homes of any age and usually cosmetic. Active water intrusion or signs of ongoing movement are different and worth a closer look, sometimes from a structural engineer.
How do I know which inspection issues are worth negotiating over?
Generally: safety and structural issues first, big systems nearing the end of their life second, and cosmetic or routine maintenance items last. Not every item on the report deserves the same amount of attention.
An inspection report on an older home can look intimidating at first glance, but most of what’s on it is manageable, common, and negotiable. If you’re getting ready to make an offer, or you just got a report back and aren’t sure what actually matters, discuss it with your agent and inspector. They should be able to help you develop the best strategy based on your specific situation.
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