Home Inspector Drexel Hill, PA | Home Inspection & Mold Testing

All Seasons provides professional home inspections and PRO-LAB certified mold testing in Drexel Hill, Delaware County. InterNACHI-certified owner-operator Bob personally performs every inspection — 20+ years experience, 4.9 stars on Google, 24-hour reports. Home inspections from $325, mold testing from $290. Call 610-348-6728 for a free estimate.

Drexel Hill, Delaware County

What home inspection and mold testing services are available in Drexel Hill?

Stone-front twins line block after block of Drexel Hill, their porches stepping down the slope toward the Lansdowne Avenue and Garrett Road crossroads that still anchors daily life here. Streets like Burmont Road, Shadeland Avenue and State Road carry a housing stock built mostly between the 1920s and the 1950s, and the difference between the two ends of that range shows up on nearly every block. The pre-war twins around Aronimink and the older sections off Lansdowne Avenue generally sit on poured concrete or concrete block foundations with full basements, plaster over wood lath, and hardwood buried under decades of carpet. The post-war singles and ranches that filled in toward Pilgrim Gardens and the streets feeding Township Line Road came later, with shallower footings, simpler framing, and in some cases slab construction that changes how water moves under the house entirely. The landmarks give the geography its shape: Upper Darby High School on North Lansdowne Avenue, Drexel Hill Middle School, the Drexeline center at State Road, the former Delaware County Memorial Hospital campus, and the 101/102 trolley sharing a common trunk down Shadeland Avenue toward the 69th Street terminal, also in Upper Darby Township. Because Drexel Hill has always been both an entry point for first-time buyers and a place families stay for thirty years, one street can hold a home with a new roof, a new service panel and a finished basement standing next door to one where the original clay sewer lateral, the original plaster, and a furnace converted off oil decades ago are all still in service.

The pattern Bob sees most often in Drexel Hill is a house that has been half modernized and half left alone, and the seam between the two is where the problems hide. A 1928 stone twin off Burmont Road may have a newer breaker panel feeding forty year old branch wiring, or a basement finished over a foundation wall that was never waterproofed. A 1949 colonial near Pilgrim Gardens may have a high efficiency furnace sitting where an oil unit used to be, vented into a chimney that was never relined to the right diameter. Those two situations look nothing alike on paper, and both of them tend to end with moisture somewhere it does not belong. That is why Bob handles the whole picture himself. He is InterNACHI and ASHI certified for the home inspection and PRO-LAB certified for mold, so when a Drexel Hill basement smells musty or a plaster ceiling shows a stain nobody can explain, he can pull air samples on the same visit instead of handing you a referral and a second appointment two weeks out. The same goes for indoor air quality testing on houses with original ductwork or questionable retrofit insulation. One inspector, one report, one person to call with a follow up question. Bob has worked this corner of Delaware County for more than twenty years, including Havertown just across Township Line Road, and he answers his own phone and books his own appointments. Call 610-348-6728, describe the house, and he will tell you what it actually needs.

20+
Years Inspecting Drexel Hill
1920s–1950s
Primary Housing Era
4.9★
Google Rating (159)
2
National Certifications

What does a home inspection in Drexel Hill include?

Bob approaches every Drexel Hill inspection per ASHI and InterNACHI Standards of Practice. With 1920s–1950s housing stock dominant in Drexel Hill, Bob pays particular attention to the era-specific issues that affect early to mid-20th century construction in Delaware County.

Block & Poured Foundations with Clay Laterals

1920s–1940s homes typically feature poured concrete or concrete block foundations — an improvement over stone, but still vulnerable to cracking and water intrusion after 80+ years. Bob pays special attention to clay sewer laterals common in this era, which suffer from tree root intrusion and joint separation.

Early Electrical Upgrades & Oil-to-Gas Conversions

Many homes from this era have had multiple electrical upgrades layered over original wiring — sometimes creating code violations where old and new systems connect improperly. Bob also evaluates oil-to-gas furnace conversions, checking that chimney liners, supply lines, and venting meet current safety standards.

Original Slate Roofs & Plaster-Over-Lath Moisture

Original slate and clay tile roofs from the 1920s–1940s may still be serviceable but require careful inspection for worn fasteners and deteriorating underlayment. Bob checks for plaster-over-lath moisture issues where exterior water intrusion saturates wall cavities behind intact-looking plaster surfaces.

Plaster Walls, Hardwood Floors & Early Insulation

These homes feature quality craftsmanship — hardwood floors, plaster walls, built-in cabinetry — but often lack adequate insulation by modern standards. Bob evaluates whether past insulation retrofits were done properly and checks for moisture trapped behind plaster from exterior or plumbing leaks.

How does mold testing work in Drexel Hill?

Homes from the 1920s–1940s combine aging infrastructure with building practices that create persistent moisture pathways — clay sewer laterals, minimal foundation waterproofing, and plaster walls that mask moisture damage.

Clay sewer laterals with tree root intrusion causing backup and sub-slab moisture

Oil-to-gas conversion furnaces with condensation issues from improper chimney liner sizing

Plaster-over-lath walls that hold moisture for extended periods without visible exterior signs

Basement window wells with deteriorating drainage directing water toward foundation walls

Clear Results & Honest Recommendations

Bob walks you through exactly what the lab results mean — no jargon, no panic. All samples go to a PRO-LAB certified lab with results in 2-3 days. Mold testing starts at $290.

What are common issues in Drexel Hill homes?

Based on 20+ years inspecting early to mid-20th century homes in Delaware County, these are the issues Bob finds most often in Drexel Hill's 1920s–1950s housing stock:

  • Clay sewer laterals with tree root intrusion and bellied sections
  • Layered electrical upgrades with code violations at old/new connections
  • Oil-to-gas furnace conversions with improper chimney liner sizing
  • Original slate or clay tile roofs reaching end of useful life
  • Plaster-over-lath moisture damage hidden behind intact-looking walls
  • Inadequate insulation and single-pane windows driving high energy costs

Schedule in Drexel Hill

Same-week appointments available. Bob personally oversees every inspection — you always know who's walking through your home.

610-348-6728

Mon–Sat, 7am–7pm • Urgent pre-closing available

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Pricing for Drexel Hill

Home Inspection
Full inspection + 24-hour report
From $325
Mold Testing
PRO-LAB certified lab analysis
From $290

Every home is different. Call Bob for your specific quote — he'll give you an honest number on the spot.

See Full Pricing Details →
"24-hour report. You always get Bob. My name is on every inspection I do."
Serving Drexel Hill since 2003 • InterNACHI Certified • No Conflict of Interest
610-348-6728 See Pricing

Why Choose Bob

Why do Drexel Hill homeowners choose All Seasons?

01

You Always Get Bob

When you hire All Seasons, Bob personally oversees your inspection — start to finish. No corporate dispatch, no unknown inspector. You know exactly who's walking through your Drexel Hill home.

02

InterNACHI Certified

InterNACHI Certified Professional Inspector with 20+ years of specialized expertise in Delaware County's 1920s–1950s housing stock.

03

24-Hour Reports

Your detailed, photo-rich inspection report delivered the same day. No waiting — so you can make decisions within your contract timeline.

04

Early to mid-20th century Expertise

Bob has deep experience with 1920s–1940s construction — homes built with real craftsmanship but aging infrastructure. He knows the common failure points: clay laterals, layered electrical upgrades, oil-to-gas conversions, and plaster moisture issues that other inspectors miss.

Get in Touch

How do I schedule an inspection in Drexel Hill?

Same-week appointments available throughout the Philadelphia region.

Serving Philadelphia, Montgomery, Bucks, Chester & Delaware Counties. All major credit cards accepted.

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What Drexel Hill Clients Say

★★★★★
"Bob inspected our 1948 colonial in Drexel Hill and was more thorough than the inspector on our previous home, which cost twice as much. He found HVAC issues that a service company later confirmed would cost $4,500 to fix. Worth every dollar."
RL
Robert L.
Google Review • Drexel Hill, PA
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Common Questions

What are common home inspection questions in Drexel Hill?

Questions buyers and sellers in Drexel Hill ask us most often — answered directly.

A full residential home inspection in Drexel Hill starts at $325. The final number depends on the square footage, the age of the house, and how much there is to look at, so a compact 1920s twin off Shadeland Avenue and a larger post-war single with a finished basement and an addition are not going to price the same. Bob quotes honestly on the first call rather than reading from a menu. Every inspection includes a digital report delivered within 24 hours with photographs of what was found, plain language on what matters now versus what to plan for, and a phone call afterward if you want to walk through it together. Bob performs the inspection personally. Call 610-348-6728 with the address and he will give you a firm price.
All three of the core services are available throughout Drexel Hill and the rest of Upper Darby Township. Residential home inspection starts at $325, mold air sampling starts at $290, and standalone indoor air quality testing starts at $290. Bob also handles pre-listing inspections, new construction inspections, 11-month warranty inspections, and post-remediation clearance testing. The important part is that Bob Klebanoff personally performs every one of them. There are no subcontractors, no rotating technicians, and no handoff to a lab technician you have never spoken to. He is InterNACHI and ASHI certified for inspection work and PRO-LAB certified for mold sampling, which means a single visit can cover the structure, a mold question, and an air quality concern without three separate vendors and three separate schedules.
Yes. Drexel Hill sits in the core of Bob's service area, and he has been inspecting homes in this part of Delaware County for over 20 years, from the twins near Aronimink to the post-war singles out toward Township Line Road. He also covers Havertown, Upper Darby, Clifton Heights, Springfield, Broomall, Newtown Square and the surrounding Delaware County communities, plus Montgomery, Chester, Bucks and Philadelphia counties. Scheduling in Drexel Hill is usually quick because it is close to home, and Bob can often work around a tight contract deadline if you call early. Mold and air quality testing are also available on the New Jersey side, though home inspection is Pennsylvania only by design. Call 610-348-6728 to check availability for your date.
Clay sewer laterals are near the top of the list. Drexel Hill has mature street trees, and eighty year old clay pipe with mortared joints is exactly what tree roots find. The result is a lateral that backs up, bellies, or leaks under the basement slab, and homeowners often blame the fixture instead of the line. The second recurring item is layered electrical work, where a modern breaker panel has been installed but the original branch circuits behind the plaster were never touched, leaving problem connections at the point where old meets new. Bob also looks closely at original slate and clay tile roofs that may still shed water but are running out of fastener life, and at plaster over lath walls that hold moisture long after an exterior leak has been patched, showing nothing on the surface.
They can be, and Drexel Hill has a lot of them because so much of the housing stock was originally heated with oil. The conversion itself is usually fine. What goes wrong is the chimney. An old masonry flue sized for an oil burner is far too large for a modern gas appliance, and if it was never relined to the correct diameter the exhaust cools on the way up, condenses, and starts eating the flue from the inside. That shows as damp chimney walls in the basement, spalling brick above the roofline, and in the worst cases a draft problem that pushes combustion byproducts back into the house. Bob checks the liner, the sizing, the supply piping and the venting on every converted system, and he checks the abandoned oil tank situation while he is down there.
Any time the basement is part of the value of the house. Most Drexel Hill homes have full basements with foundations that predate real waterproofing, plus window wells whose drainage has quietly failed over the decades, so damp is common and finished basements can hide it. If the space smells musty, if there is staining at the base of a wall, or if the previous owner finished it and you cannot see what is behind the framing, mold air sampling starting at $290 answers the question with lab data instead of a guess. Air quality testing starting at $290 makes sense on houses with original ductwork that once served an oil furnace, deteriorating plaster and horsehair lath, or attic insulation of unknown vintage. Because Bob is PRO-LAB certified, both can be done during the same appointment as the inspection.
Start with the shared wall and the shared roof plane. On a twin, a problem originating next door does not stay next door, so Bob looks at the party wall in the attic, the flashing where the two roof sections meet, and any evidence that only one side has been maintained. Then the exterior stone and mortar, because failed pointing lets water into the wall assembly where plaster hides it. Inside, the recurring items are galvanized supply piping running slow, original single pane windows behind newer storms, insulation that was either never added or blown in without an air seal, and knob and tube remnants left live in a wall cavity. None of these are deal breakers on their own. They are budget items, and the point of the report is to tell you which ones are urgent and which can wait.
Three reasons show up over and over. First, the lots slope, and on many streets the grade has drifted back toward the house over eighty years of settling, patios and driveway repaving, so the ground now sends water at the foundation instead of away from it. Second, the basement window wells on these homes were built with gravel drainage that has long since silted in, turning the well into a bucket against the foundation wall. Third, the downspouts on a lot of older Drexel Hill houses discharge into the same failing clay line that carries the sewer lateral, so a hard storm overwhelms the pipe and the water comes up rather than out. Bob checks all three during the inspection and tells you which one is actually driving the water, because fixing the wrong one is expensive and does not work.
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