Professional Home Inspection in Devon, PA

InterNACHI-certified home inspection serving Devon and the Chester County Main Line, where Bob personally evaluates every major system — foundation, structure, roof, electrical, plumbing, and HVAC — against InterNACHI standards and delivers a full photo-documented report you can act on at the negotiating table.

Schedule Inspection Call 610-348-6728 Text Bob

Inspections typically scheduled within the week. Bob returns every call within 24 hours.

4.9 on Google
★★★★★

"Easy scheduling and detailed inspection at an affordable price. Would definitely recommend!"

— Pravin Wilkins, via Google Reviews
★★★★★

"Bob was very helpful with my home inspection. He prepared a detailed report that I am currently using for closing on my first property. Would recommend!"

— Ferdia Kenny, via Google Reviews
★★★★★

"I was provided a very detailed inspection report after my appointment date. This was very helpful when it came to the buying process and provided a sense of security."

— Kareem Eleisawy, via Google Reviews
★★★★★

"Bob is my hero! My pristinely clean home had a very slow water leak that produced mold. I reached Bob and he was in my house the next day doing the work. He was kind, efficient and very knowledgeable. You're in good hands with Bob!"

— Sally Moore, via Google Reviews
★★★★★ Read All Our Google Reviews

Devon, Chester County

What does a home inspection in Devon include?

A home inspection in Devon, Chester County is a top-to-bottom evaluation of a single property — foundation, structure, roof, electrical, plumbing, HVAC, and the exterior envelope — performed in person by Bob against InterNACHI standards, with a full photo-documented report delivered promptly after the visit.

Devon is a Main Line community split between Easttown and Tredyffrin Townships in Chester County, anchored on the Lincoln Highway, US-30, and the SEPTA Paoli/Thorndale Regional Rail line that puts a train station within the village. The housing stock reflects a town that grew as an affluent railroad suburb in the first half of the twentieth century: large stone and stucco colonials, Tudors, and center-hall houses from the early 1900s through the 1940s, sitting alongside mid-century homes and newer infill built as lots were subdivided. An inspection in Devon has to read both ends of that range honestly. The big pre-war stone houses were built with real craftsmanship — masonry foundations, slate or heavy asphalt roofs, plaster walls, substantial framing — but they carry close to a century of mechanical upgrades, additions, and deferred maintenance layered one on top of another, and sorting genuine condition from cosmetic appearance takes a methodical walk-through. The newer homes have their own issues, from how additions tie into original structure to how well later thermal upgrades were detailed. Devon's rolling upland forms the headwaters of Crum, Darby, and Valley Creek, which means grading, drainage, and a high seasonal water table all bear on what happens at the foundation, and I evaluate exterior grading and water management on every property because that is where a Main Line stone house most often gets into trouble. I cover the foundation and structure, the roof and attic, the electrical service and accessible wiring, the plumbing supply and waste systems, the HVAC equipment and distribution, the exterior envelope including the stucco systems that are everywhere in Devon, and the interior finishes, windows, and insulation. The goal is a clear, complete picture of the house as it actually stands today, not a generic checklist applied to a house the inspector never really looked at.

When I walk a pre-war stone or stucco house in Devon, I am reading the layers. A house like this has usually had three or four sets of owners make independent decisions about the panel, the heating system, and the plumbing without any of them coordinating, and the seams between those decisions are where the real findings live. Electrical is a frequent one: original wiring sometimes survives in attic and wall cavities even after the panel was modernized, and the junctions where old work meets new are exactly where I look hardest for safety problems. Heating is another. A lot of Devon homes were converted from oil to gas, and those conversions were not always paired with a correctly relined chimney, so I check whether the flue was sized for the new equipment or left oversized in a way that lets exhaust condense. The stucco systems that define so many Devon Tudors and colonials get close attention, because failed stucco and bad flashing details drive water into wall assemblies, and I check the walls below the suspect junctions rather than assuming intact-looking stucco is sound. On the original clay sewer laterals running out under mature trees, root intrusion and bellied sections are an expectation rather than a surprise, and I will tell you when a sewer scope is worth adding. The grading and drainage on the creek-headwater slopes gets evaluated on every job, since that is what determines whether the foundation sheds water or collects it. What I do not do is repairs. I am an independent inspector with no remodeling arm, no referral kickbacks, and no financial stake in anything I find, so the report reflects the house and nothing else. I document every finding with photographs and sort it into immediate safety concerns versus longer-term maintenance, and I put a plain-language repair-cost range on the items that warrant one. Buyers looking next door in Wayne find similar Main Line construction, but every house is its own building and I inspect it that way. I encourage you to attend in person so I can walk you through each finding on site and answer your questions before you sign anything. Call 610-348-6728 to schedule.

20+
Years of Experience
1900s–1940s
Primary Housing Era
4.9★
Google Rating (159)
2
National Certifications

What does Bob check during a Devon home inspection?

Bob approaches every Devon inspection per ASHI and InterNACHI Standards of Practice. With 1900s–1940s housing stock dominant in Devon, he focuses on the era-specific concerns that affect early to mid-20th century construction in Chester 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.

What are common issues in Devon homes?

Based on 20+ years inspecting early to mid-20th century homes in Chester County, these are the issues Bob finds most often in Devon's 1900s–1940s 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

Ready to schedule your Devon inspection?

Inspections typically scheduled within the week. Bob returns every call within 24 hours.

Also Available: Mold Testing & Air Quality in Devon

In addition to home inspections, Bob provides professional mold testing and air quality analysis for Devon properties. PRO-LAB certified lab results starting from $275.

Learn About Mold Testing in Devon

Schedule Your Home Inspection in Devon

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

Get a Free Estimate

Inspection Services in Devon

  • Residential Home Inspection
  • Pre-Listing Inspection
  • New Construction Inspection
  • 11-Month Warranty Inspection
  • WDI / Termite Inspection
  • Radon Testing

Pricing for Devon

Home Inspection
Full inspection + 24-hour report
From $375

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

See Full Pricing Details →

Nearby Areas Also Served

Berwyn Wayne Paoli Malvern Radnor Villanova Tredyffrin
"24-hour report. You always get Bob. My name is on every inspection I do."
InterNACHI Certified • 20+ Years Experience • No Conflict of Interest
610-348-6728 See Pricing

Why Choose Bob

Why do Devon 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 Devon home.

02

InterNACHI Certified

InterNACHI Certified Professional Inspector with 20+ years of specialized expertise in Chester County's 1900s–1940s 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.

From the Blog

What should Devon homebuyers know about inspections?

What Should a Home Inspector Actually Check?

Read More →

First-Time Homebuyer Inspection Guide

Read More →

Get in Touch

How do I schedule a home inspection in Devon?

Same-week appointments available throughout the Philadelphia region.

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

Tell Us About Your Property

Bob returns every call within 24 hours. Inspections typically scheduled within the week. No spam, no email lists.

Common Questions

What are common home inspection questions in Devon?

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

Home inspections in Devon start at $375. The final price depends on square footage, the age of the house, the number of outbuildings, and whether you bundle add-on services such as radon, a sewer scope, termite, or mold air sampling. Devon's larger pre-war stone houses tend to land above the base because there is simply more building to inspect. Call Bob directly at 610-348-6728 and he will give you an honest per-property quote on the first call rather than a menu price.
Every Devon inspection runs against InterNACHI standards and covers the foundation and structural systems, the electrical service panel and accessible wiring, the plumbing supply and waste lines, the HVAC equipment and distribution, the roof and attic, the exterior envelope and grading including stucco cladding, the interior finishes, the windows and doors, and the insulation and ventilation. You receive a photo-documented report after the visit that lays out what was found and sorts it by priority so the document is genuinely useful at the negotiating table.
Most Devon inspections run two to three hours on site, and the larger pre-war stone houses can run longer because there is more square footage, more roof, and more mechanical history to work through. Bob encourages you to attend, because the in-person walk-through at the end is where the report becomes useful instead of just something you read later. You see the conditions yourself and can ask about anything that concerns you while you are standing in front of it.
Every home inspection in Devon is performed in person by Bob Klebanoff, the same certified inspector every time. There are no subcontractors and no rotating technicians — the person you book is the person who shows up and does the work. Bob documents findings with photographs and a plain-language repair-cost range, sorts them into immediate safety concerns versus planned maintenance, and explains each one in plain language so nothing gets buried in jargon. You always get Bob, and you always get a direct conversation about what he found.
Devon's early-1900s-to-1940s stone and stucco houses were built well, but they carry decades of layered upgrades that have to be sorted out. Bob looks hard at the masonry foundation for moisture and movement, at the stucco cladding for cracks and flashing failures that drive water into the walls, at the electrical for original wiring left in place behind a modernized panel, and at the heating for an oil-to-gas conversion that left an oversized chimney flue. None of these are reasons to walk away from a solid old house, but knowing exactly where it stands is the entire point of the inspection, and it tells you what to factor into your offer.
Devon sits on rolling upland that forms the headwaters of Crum, Darby, and Valley Creek, so grading and drainage carry real weight here. Bob evaluates whether the lot sheds water away from the foundation or channels it toward the house, and he checks the basement for the evidence that matters: efflorescence and staining on the masonry, the presence and function of a sump pump, and signs of prior waterproofing work. On a stone foundation the seasonal water table can keep walls damp without any visible intrusion, so this evaluation tells you whether you are looking at routine maintenance or a water-management cost worth negotiating over.
On the older Devon properties it is usually worth it. The original clay sewer laterals run out under mature street trees, and after this many decades root intrusion and bellied sections are common enough that I treat them as an expectation rather than a possibility. A failing lateral is an expensive repair, and it is invisible during a standard visual inspection. Unless there is recent documentation showing the lateral was already replaced, a sewer scope gives you a clear answer on one of the few major systems that the rest of the inspection cannot see, and it is a sensible add-on before you finalize an offer.
Every finding in the report is documented with photographs and sorted into immediate safety concerns versus longer-term maintenance, so you can tell at a glance what needs attention now and what can wait. Items that warrant it get a plain-language repair-cost range. That structure is what lets you decide whether to negotiate, accept, or walk, because you are working from a clear picture of the house rather than a wall of undifferentiated observations. Bob walks you through that sorting in person at the end of the inspection so the priorities are clear before you make a decision.
No, and that is deliberate. Bob is an independent inspector with no remodeling business, no repair arm, and no referral arrangements, which means there is no financial conflict of interest behind anything in the report. He has nothing to gain by inflating a finding or by downplaying one. The report reflects the condition of the house and nothing else, and you are free to take it to any contractor you choose for the work. That independence is the whole reason a buyer's inspection is worth having.
Devon's housing stock has specific patterns — stone and fieldstone foundations, widespread stucco cladding, oil-to-gas heating conversions, clay sewer laterals, and a high seasonal water table on the creek-headwater slopes — and an inspector who works these Main Line towns knows where those issues hide. Bob has inspected many homes across Devon, Berwyn, Wayne, and the surrounding townships, so he is not learning the regional construction on your dime. That local knowledge means the inspection targets the conditions that actually occur in these houses rather than running a generic checklist that misses what is specific to the area.
Call Text Get Free Estimate