Mold Inspection & Testing in Jenkintown, PA

Jenkintown, Montgomery County, PA

How does mold testing work in Jenkintown?

Last updated May 4, 2026

Jenkintown is one of Montgomery County's most compact and historically layered boroughs, a walkable community where Victorian twins, stone colonials, and pre-war rowhouses sit shoulder to shoulder along Cedar Street, Greenwood Avenue, and the blocks radiating outward from the Old York Road commercial corridor. The borough covers barely half a square mile, yet packs in a century or more of construction history — from the ornate late-1800s doubles near the SEPTA Jenkintown-Wyncote station on West Avenue to the modest brick rowhouses that line Runnymede Avenue and Greenwood Avenue closer to the Cheltenham township line. Homes along Jenkintown Road and Wyncote Road date to the Victorian era, built when the Reading Railroad made this borough a desirable commuter destination for Philadelphia professionals. That dense, pre-1920 housing stock is the defining feature of Jenkintown's character — and its central mold risk. Pre-1920 homes are among the highest-risk properties for mold growth due to stone foundations that wick moisture, lime mortar joints that crack over time, and original drainage systems that predate modern waterproofing. Porous stone foundations with no vapor barrier allow constant moisture migration from the surrounding soil, while original clay drainage tiles beneath the property may have cracked or clogged over decades, redirecting groundwater toward the foundation wall rather than away from it. Lime mortar repointing gaps open with settling and freeze-thaw cycles, creating entry points for moisture at the very places where the foundation meets the first floor. Unventilated basement spaces with earth or deteriorating concrete floors stay perpetually damp, creating the kind of stable, humid microclimate that Cladosporium, Penicillium, and Aspergillus species favor year-round. Along the low-lying areas near Tookany Creek, which runs along Jenkintown's eastern border, the water table sits close to grade — meaning even a well-maintained stone foundation can see seasonal seepage that never fully dries. Buyers and current owners of properties in Jenkintown Borough, the Greenwood Heights area, the blocks near Noble Road, and the rowhouse stretches close to the downtown train station should treat mold testing as a baseline step, not an afterthought.

I have been inspecting homes in this part of Montgomery County for more than twenty years, and Jenkintown is the kind of borough where you learn to check everywhere. The Victorian twins along Cedar Street and Greenwood Avenue are beautiful properties, but their shared walls and original stone party foundations mean that moisture problems in one unit often affect the adjacent one — sometimes years before either owner notices visible growth. The rowhouses near Old York Road and the blocks close to the SEPTA Jenkintown-Wyncote station were built quickly during the late 19th and early 20th century commuter boom, and the construction economy of that era prioritized speed over vapor management. What I find most consistently in this type of housing is the combination of unventilated basement space and an original clay drain tile system that has deteriorated silently over decades. The clay tiles crack, the joints separate, and instead of channeling groundwater away from the foundation, they direct it straight toward the footing. The result is a perpetually damp perimeter that feeds mold colonies behind finished walls, under subflooring, and in the joists above the basement ceiling — none of which are visible during a routine walkthrough. Homes near Tookany Creek and the low-lying stretches along Wyncote Road face additional hydrostatic pressure during heavy rain events that older drain systems simply were not designed to handle. The 1920s and 1930s additions common in this borough — enclosed rear porches, converted carriage house spaces, finished basement family rooms — often sealed off original ventilation paths without providing modern alternatives, locking humidity in. I also see elevated spore counts fairly regularly in attic spaces on the older stock along Runnymede Avenue and Noble Road, where original slate or wood-framed rooflines have developed slow leaks that go undetected until the attic sheathing is compromised. Adjacent boroughs like Wyncote share much of the same pre-war construction profile and the same creek-adjacent moisture challenges. Every sample I collect in Jenkintown, I collect personally. No rotating technicians, no subcontracted lab crew. Bob walks every client through the results in plain language — what the counts mean, whether remediation is needed, and who to call if it is. No jargon, no scare tactics. Call 610-348-6728 to schedule.

Why are Jenkintown's 1890s–1950s homes at risk for mold?

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.

How does Bob test for mold in Jenkintown?

Bob follows a systematic approach calibrated to the specific risks of early to mid-20th century construction in Montgomery County. All sampling protocols follow EPA mold testing guidelines:

What are common issues in Jenkintown homes?

Based on 20+ years testing early to mid-20th century homes in Montgomery County, these are the issues Bob finds most often:

• 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