
Exterior & Envelope · Greater Philadelphia
Waterproofing in Philadelphia, PA
Dry Basements, Permanently Serving Philadelphia, PA and the surrounding Greater Philadelphia area, with free estimates returned in 24 hours.
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30+
Years of Experience
2,500+
Jobs Completed
Licensed
& Fully Insured
24/7
Emergency Response
Local Waterproofing Specialists in Philadelphia
SMG Plastering INC provides professional waterproofing throughout Philadelphia, PA. Our crews work out of 830 Crum Creek Road, Media, PA 19063, so Philadelphia projects get an owner-supervised team that already knows the neighbourhoods, the building stock and the conditions that cause waterproofing problems here.
A wet basement is rarely one problem — it's a drainage system that stopped working. SMG Plastering INC waterproofs basements, crawlspaces and foundations across Media, Chester, Upper Darby and Delaware County using a diagnosis-first approach: we trace the water path from grading and gutters to footing drains before recommending a single product.
Philadelphia's building stock is unlike anywhere else in the region: block after block of solid masonry rowhomes, party walls shared between neighbors, parapets and cornices exposed on every side, and a century or more of layered repairs. SMG Plastering INC works throughout the city — South Philly, Fishtown, Manayunk, Chestnut Hill, Northeast and West Philadelphia — on the specific problems that architecture creates.
Every Philadelphia project begins with a free on-site assessment and a written, itemized proposal within 24 hours — covering preparation, materials, schedule and price with nothing hidden. For water, mold and storm emergencies in Philadelphia, PA, we answer 24/7.

Why Choose Us
Why Philadelphia Chooses SMG for Waterproofing
Licensed, insured and owner-supervised on every Philadelphia job — with clear pricing and clean, respectful crews.
- Free on-site waterproofing assessment anywhere in Philadelphia, PA, with an itemized proposal inside 24 hours
- Licensed, insured crews with 30+ years of Greater Philadelphia experience
- Root-cause repairs — moisture sources, flashing and drainage corrected, not covered up
- Manufacturer-approved materials chosen for Greater Philadelphia freeze-thaw cycles and humidity
- Clean, protected work areas and direct communication with owner Shane Mc Girr
- 24/7 emergency response across Philadelphia, PA
Related Services
Pairs Well With Waterproofing in Philadelphia
Most projects touch more than one trade. Keep it all with one licensed contractor.

Mold Remediation
Thorough inspection, safe containment-based removal and long-term moisture control for healthy indoor air.
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Water Damage and Restoration
Fast extraction, professional structural drying and full restoration back to pre-loss condition — day or night.
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Pointing Services
Restored mortar joints that protect masonry from water intrusion while preserving original character.
Learn moreOur Waterproofing Process in Philadelphia
- Step 1
Free Consultation
We walk the property with you, identify the root cause, and answer every question — no pressure, no charge.
- Step 2
Detailed Proposal
You receive a written, itemized proposal within 24 hours of the site visit, including materials, scope and schedule.
- Step 3
Work Begins
Our licensed crew protects the site, preps every surface properly, and keeps you updated daily as work progresses.
- Step 4
Enjoy the Result
We walk the finished job with you, clean up completely, and stand behind the workmanship long after we leave.
Gallery
Recent Waterproofing Work
A look at the preparation and finish quality our crews bring to every Philadelphia project.




Find Us
Serving Philadelphia, PA and the surrounding area
Frequently Asked Questions
Waterproofing in Philadelphia — Questions, Answered
Should I waterproof my basement from the inside or the outside?
Exterior waterproofing addresses water before it reaches the wall and is the most complete fix, but it requires excavation. Interior systems manage water that has already entered and are less disruptive and less expensive. We recommend based on your water source, soil and budget — not a one-size-fits-all product.
How much does basement waterproofing cost in Delaware County?
Cost varies with linear footage, wall condition, and whether excavation or a sump system is needed. Targeted crack injection is a small job; a full perimeter system is a larger investment. Your free inspection produces an itemized number with no surprises.
Will waterproofing stop my basement humidity and musty smell?
Usually, yes — when it's paired with the right dehumidification and vapor barrier. If mold has already established itself, remediation must happen first, which our team also performs.
Do you handle Philadelphia L&I permits for masonry and siding work?
Yes. Structural masonry, facade work above a certain height, and siding replacement generally require Licenses & Inspections permits. We file applications, coordinate inspections and carry the insurance certificates the city requires.
Can you repoint a shared party wall between rowhomes?
We do this regularly. Party wall and parapet work usually involves coordinating access with a neighbor, which we help arrange, and we document conditions on both sides before starting.
Get Started
Get a Free Waterproofing Estimate in Philadelphia
Tell us what you need and we'll return a detailed, itemized estimate within 24 hours. Emergency service is available 24/7.
- Office
- 830 Crum Creek Road, Media, PA 19063
- Hours
- Available 24/7 – Emergency services available day or night
Get a Free Estimate
Tell us about your project and we'll respond within 24 hours.
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