Most buyers think a home inspection is a stamp of approval. It is not. It is a snapshot of one Tuesday afternoon, taken by a generalist with a flashlight and a clipboard. Knowing what they catch, what they miss, and what additional inspections to add (especially in Pennsylvania) is half the battle of buying smart. This guide walks through every inspection you should consider in Central PA in 2026, with real costs and what each one actually accomplishes.
Standard inspection costs in Pennsylvania (2026)
Per North Penn Now's 2025 Pennsylvania inspection cost guide:
| Inspection Type | Cost Range | When Needed |
|---|---|---|
| Standard home inspection | $325 to $425 | Always |
| Larger/older home premium | $450 to $600 | 3,500+ sqft or 50+ years old |
| Radon test (48-hr monitor) | $125 to $200 | Always (40% of PA homes test high) |
| Sewer scope | $200 to $350 | Any home 30+ years old on public sewer |
| Septic inspection | $300 to $500 | Any home with septic system |
| WDI (termite) inspection | $75 to $150 | Required for VA loans, smart for everyone |
| Mold air sampling (optional) | $300 to $500 | If signs of moisture or allergy concerns |
| Well water test | $100 to $250 | Any home on well water |
| Chimney inspection | $150 to $400 | Older homes with fireplace/wood stove |
For a typical Chambersburg-area home over 25 years old, budget $700 to $1,100 total in inspection costs. It is one of the best dollars you will spend in the entire transaction.
What a good inspector catches
A standard home inspection per the InterNACHI Standards of Practice covers:
- Roof condition (visible from ground or accessible roof)
- Foundation cracks and visible structural issues
- Major plumbing leaks under sinks, around toilets, in basements
- Visible electrical issues (outdated panels, double-tapped breakers, ungrounded outlets, exposed wiring)
- HVAC age, basic operation, and visible wear
- Window seals and visible water intrusion
- Major drainage issues around the foundation
- Insulation visibility in the attic
- Working condition of major appliances
- Visible signs of pest activity
- Smoke detector and carbon monoxide detector presence
- GFCI outlet placement and function in kitchens, bathrooms, and exterior
A good inspector will produce a 40-80 page report with photos, organized by safety vs. functional vs. cosmetic issues. The best inspectors include short videos of operating systems (like the furnace running, water heater function) so you can see for yourself.
What inspectors usually miss (or cannot see)
- Anything inside walls — plumbing leaks, knob-and-tube wiring, hidden mold, structural issues behind drywall
- Sewer lines beyond the visible cleanout (need separate sewer scope)
- Roof issues hidden under snow or leaves (a real concern for inspections in late fall through early spring in PA)
- Latent moisture behind drywall (mold can be growing without visible signs)
- The septic system (separate inspection required)
- Mold inside HVAC ducts (separate ductwork inspection if concerned)
- Active pest activity that is not currently visible (carpenter ants, termites can be there without obvious signs)
- Structural issues hidden behind finished basement walls
- Wells and water quality (separate test)
- Underground oil tanks (older PA homes — separate scan if concerned)
The PA-specific inspection schedule
1. Radon test ($125-$200) — DO NOT SKIP
This is the single most important add-on in Pennsylvania. The PA Department of Environmental Protection reports that approximately 40% of Pennsylvania homes test at or above the EPA action level of 4 pCi/L. PA has one of the most serious radon problems in the country due to underlying uranium-bearing rock formations.
The EPA recommends mitigation at any reading 4.0 pCi/L or above. Long-term radon exposure is the second leading cause of lung cancer in the US after smoking — the EPA estimates 21,000 deaths annually attributable to radon.
If the test comes back high, mitigation systems run $1,500 to $3,000 in Central PA. They can be negotiated as a seller credit at closing or remediated by the seller before settlement. Either way: test it.
2. Sewer scope ($200-$350)
For any home built before 1990. A camera goes down the main sewer line and shows you exactly what is happening. Common findings in older Chambersburg, Carlisle, and Shippensburg homes include:
- Tree roots in clay pipes
- Partial collapses ("bellies")
- Corroded cast iron
- Offset joints
- Foreign objects (toys, wipes, etc.)
A full sewer line replacement runs $7,000 to $15,000+. A $250 inspection is the cheapest insurance you will ever buy. Sewer issues are particularly common in homes from the 1940s-1960s where original clay pipes are reaching end of life.
3. Septic inspection ($300-$500)
Required for any home with a septic system in PA — and that is most homes outside immediate town centers. The standard inspection includes:
- Locating the tank
- Opening it
- Measuring sludge levels
- Checking the leach field
- Running water through the system
- Checking distribution boxes
Septic replacement can run $10,000 to $30,000+. A new sand mound system is at the high end; a conventional gravity system is at the low end.
4. Termite/WDI inspection ($75-$150)
Required for VA loans, smart for everyone. PA has carpenter ants, termites, and wood-boring beetles. A WDI report is good for 90 days and many lenders require it as part of closing.
5. Well water test (if applicable)
If the home is on well water, get the water tested for bacteria (E. coli, total coliform), nitrates, and basic chemistry (hardness, pH, iron, manganese). Some lenders require this; even if not required, get it. Bacterial contamination is a fixable issue that you absolutely want flagged before closing.
How to read an inspection report
Inspection reports tend to look terrifying because everything is flagged for liability. The trick is sorting items into three buckets:
Bucket 1: Safety issues (must fix or seller credit)
- Exposed wiring or knob-and-tube electrical
- Gas leaks at appliances or supply lines
- Structural concerns with foundation or load-bearing elements
- Missing handrails on stairs or stoops
- Water heater installation issues (no expansion tank, missing T&P valve, improper venting)
- CO/smoke detector absence in legally required areas
- Asbestos or lead paint disturbance
- Active mold growth from moisture intrusion
Bucket 2: Functional issues (negotiate or budget for soon)
- HVAC system near end of life (15+ years old)
- Water heater near end of life (10+ years old)
- Roof showing wear (15+ years old asphalt)
- Visible water staining suggesting past or active leak
- Inefficient or fogged windows
- Aging siding showing wear
- Driveway cracks or asphalt deterioration
Bucket 3: Cosmetic/minor (live with it)
- Chipped tile
- Worn doorknobs
- Discolored caulk
- Minor paint scuffs
- Old cabinet hardware
- Outdated light fixtures
Your agent should walk through the report with you and help you triage. We do this with every buyer.
Negotiating after the inspection
The Pennsylvania Association of Realtors standard agreement gives buyers a 10-day inspection contingency by default. Within that window you can:
- Request the seller to make specific repairs
- Request a credit at closing instead
- Walk away entirely with your earnest money returned
Why a credit beats a repair request 9 times out of 10
Cash beats their contractor choice every time.
- You control the quality and timing
- You can fold it into your loan and pay it over 30 years instead of out of pocket
- If you want to upgrade beyond the basic repair, you can
- Sellers who are forced to do repairs often hire the cheapest contractor and rush the job
- You avoid the awkward post-inspection re-inspection scheduling and possible new issues
The exception: items where you genuinely need the seller's repair before financing will close (FHA-required repairs, certain VA-flagged items, lender-required mitigation).
What inspections we ALWAYS recommend in this market
For our Central PA clients, the standard package on any home over 25 years old is:
- General home inspection
- Radon test
- Sewer scope (if on public sewer) OR septic inspection (if on septic)
- WDI termite inspection
- Well water test (if on well)
That is $700-$1,100 total. On a $250,000-$400,000 home, the protection is well worth the cost. We have a vetted list of local inspectors we have worked with for years and will share when you are ready.
Common inspection mistakes
- Skipping radon to save $150. A reading of 8.0 pCi/L is a $1,500-$3,000 mitigation negotiation. The radon test pays for itself many times over when it is positive.
- Not attending the inspection. Even an hour at the end gives you knowledge that no report can convey.
- Asking for cosmetic items in your inspection request. Sellers tune out when you ask them to fix a chipped tile alongside your foundation crack request. Stick to safety + functional. Live with cosmetic.
- Hiring the cheapest inspector. A $200 inspector who misses a $15,000 sewer issue is the most expensive inspector you ever hired.
- Letting the seller pick the inspector. Always your inspector, never theirs.
- Skipping the sewer scope on an old home. Most expensive single mistake we see buyers make.
Bottom line
An inspection is not a guarantee that everything is fine. It is a flashlight in dark places. Knowing what your inspector will catch, what they will miss, and which additional inspections to add for Pennsylvania conditions is the difference between buying a home with confidence and buying with a knot in your stomach.
Spend the $700 to $1,100 on the right combination of inspections. Walk through every report with someone who knows what they are looking at. Negotiate strategically — cash credits over forced repairs in almost every case. And reach out when you are ready; we will introduce you to the inspectors we trust and walk through the entire process with you.