Basement Waterproofing & Foundation Repair in Montgomery County, PA
Down Under Waterproofing has been protecting Montgomery County homes from water damage, foundation failure, and moisture-related structural deterioration since 2006. We proudly serve homeowners throughout the county — from older inner-ring suburbs and historic boroughs to larger townships and residential communities across Montgomery County.
Call (908) 812-5040 for a Free EstimateProtecting Montgomery County Homes Since 2006
Montgomery County presents a wide range of waterproofing and foundation challenges due to clay-heavy soils, elevated groundwater, creek watersheds, and a large concentration of older homes with aging stone, brick, and early concrete block foundations. Homes throughout the county can experience basement seepage, crawl space moisture, settlement, foundation cracking, and long-term structural deterioration caused by repeated moisture intrusion and hydrostatic pressure.
Whether your home is in Cheltenham Township, Glenside, Jenkintown, Abington Township, Horsham, Lansdale, Norristown, Ambler, Blue Bell, Hatboro, or anywhere else in Montgomery County, Down Under Waterproofing provides reliable, long-term solutions for basement leaks, foundation cracks, crawl space moisture, and structural issues.
Common Waterproofing & Foundation Challenges in Montgomery County
- Clay-heavy soils creating hydrostatic pressure against basement walls and floors
- Elevated groundwater near the Tookany Creek and Wissahickon Creek watersheds
- Older stone, brick, and early block foundations in historic boroughs and inner suburbs
- Long-term water infiltration and mortar deterioration in pre-1960s homes
- Poor drainage and runoff issues in mature neighborhoods with aging grading systems
- Water seepage in basements and crawl spaces throughout both older and newer homes
Montgomery County Towns We Serve
We proudly provide basement waterproofing and foundation repair services throughout all of Montgomery County, PA.
Towns with dedicated service pages:
Cheltenham Township | Glenside | Jenkintown | Abington Township
Additional towns we serve:
Ambler | Ardmore | Bala Cynwyd | Blue Bell | Collegeville | Conshohocken | East Norriton | Fort Washington | Hatboro | Hatfield | Horsham | King of Prussia | Lansdale | Lower Merion | Narberth | Norristown | Plymouth Meeting | Pottstown | Souderton | Willow Grove
If your town is not listed above, contact Down Under Waterproofing — we likely service your area.
Our Montgomery County Service Area
We serve homeowners throughout all of Montgomery County, PA. Use the map below to find your community.
Trusted by Homeowners Across Montgomery County
Google Rating
Homeowners throughout Montgomery County trust Down Under Waterproofing for reliable, long-term waterproofing and foundation repair solutions.
Angi Rating
We maintain a 5.0 rating on Angi, reflecting consistent quality workmanship and customer satisfaction across Montgomery County.
Why Homeowners in Montgomery County Choose Us
- Serving Montgomery County since 2006
- Licensed and insured in NJ & PA — NJ License #13VH03267600 | PA License #PA175894
- Open Monday through Saturday, 7:00 AM to 7:00 PM
- Free written estimates with clear, honest recommendations
- Specialized in basement waterproofing, foundation repair, crawl space encapsulation, and masonry repair
- Deep knowledge of Montgomery County’s older housing stock, creek watersheds, and clay-heavy soil conditions
Our Services in Montgomery County, PA
Basement Waterproofing
Interior and exterior waterproofing systems designed for Montgomery County’s groundwater conditions, older homes, and clay-heavy soils.
Learn More →Foundation Repair
Crack repair, wall stabilization, and structural reinforcement for Montgomery County homes — from older masonry foundations to newer poured concrete systems.
Learn More →Crawl Space Encapsulation
Full moisture barrier installation to eliminate mold, odors, and structural damage in Montgomery County crawl spaces.
Learn More →Masonry Repair
Tuckpointing, repointing, and crack repair for Montgomery County’s older brick, block, and stone foundations throughout the county.
Learn More →Stucco Repair & Application
Expert stucco repair and application for Montgomery County homes with weather-resistant finishes matched to your home’s appearance.
Learn More →Retaining Wall Construction
Custom retaining wall design and construction to stabilize soil, manage drainage, and protect Montgomery County properties with grade changes or uneven terrain.
Bilco Door Installation
Professional installation and replacement of Bilco basement doors for safe, secure, and weather-resistant exterior basement access.
Egress Window Installation
Egress window installation to improve safety, natural light, and code compliance for finished basements in Montgomery County homes.
Above Grade Waterproofing
Exterior caulking, flashing repair, and waterproof coatings to stop water entry above the foundation line throughout Montgomery County.
Learn More →Frequently Asked Questions — Montgomery County, PA
Do you serve all of Montgomery County?
Yes. Down Under Waterproofing serves homeowners throughout Montgomery County, PA, including Cheltenham Township, Glenside, Jenkintown, Abington Township, Horsham, Lansdale, Norristown, Ambler, Blue Bell, Hatboro, and all other Montgomery County municipalities.
What causes basement water problems in Montgomery County, PA?
Montgomery County’s waterproofing challenges are shaped by the Tookany Creek and Wissahickon Creek watersheds, clay-heavy soils, and the county’s large concentration of older homes with aging stone, brick, and block foundations. Elevated groundwater, hydrostatic pressure, and long-term foundation deterioration can all contribute to basement leaks, seepage, and structural movement.
Does the Tookany Creek affect Montgomery County homes?
Yes. The Tookany Creek watershed runs through Cheltenham, Glenside, and surrounding communities, and elevated groundwater during heavy rain events can affect homes well beyond the immediate creek corridor. Even properties not directly adjacent to the creek may experience basement seepage, hydrostatic pressure, and drainage-related moisture problems.
Are older Montgomery County homes more vulnerable to foundation problems?
Yes. Many Montgomery County homes were built in the 1920s through 1950s with stone rubble, brick, or early concrete block foundations. These older foundations are more vulnerable to mortar joint deterioration, water infiltration, and structural movement caused by clay soil expansion and contraction.
How much does basement waterproofing cost in Montgomery County, PA?
The cost of basement waterproofing in Montgomery County depends on the size of the basement, the foundation type, the extent of water intrusion, and the drainage conditions on the property. Older stone and brick foundations common in Montgomery County often require more comprehensive solutions. Down Under Waterproofing provides free on-site inspections and written estimates.
Nearby Areas We Serve
Cheltenham Township | Glenside | Jenkintown | Abington Township
Get a Free Estimate in Montgomery County, PA
Don’t wait until water damage or foundation problems get worse. Contact Down Under Waterproofing today for a free inspection and written estimate. We’re open Monday through Saturday from 7:00 AM to 7:00 PM.
Call (908) 812-5040 NowLicensed & Insured | NJ #13VH03267600 | PA #PA175894