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Basement Waterproofing in Philadelphia

Basement Waterproofing Scientists uses cutting edge technology to identify the source of basement leaks in Philadelphia so we can fix them permanently for less cost.

Philadelphia Basement Waterproofing BBB

Philadelphia Basement Waterproofing Contractors

Basement Waterproofing Scientists helps homeowners and commercial property owners in the Philadelphia PA area.
With 30 years experience, we provide basement waterproofing services, crawl space repair, sump pump installation, and foundation repair. Call today for free estimates and free inspections.

Basement Waterproofing Services in Philadelphia

Whether looking for waterproofing crawl space or installation of a basement system, call Basement Waterproofing Scientists today. We’ll keep your basement dry, fix basement wall cracks, and solve foundation problems. We’ll offer you a free estimate and inspection. We’re locally owned and we’ll solve your water intrusion problem in a timely manner.

Basement Leak Repair in Philadelphia

Basement Leak Repair

Does your basement leak after it rains?  Do you wonder where the leak is coming from?  Give us a call, we’re experts in finding leaks at their source and providing permanent solutions.

basement crack repair Philadelphia

Basement Crack Repair

Cracks in basement walls can range from a minor nuisance to a major structural issue.  Do you have leaking cracks in your basement walls?  Give us a call for your free inspection.  Click here to learn more.

Foundation repair in Philadelphia

Foundation Repair

Do you think you have movement in your foundation?  Do you have widening cracks, step cracking or shifting?  Give us a call, we are experts at foundation repairs whether large or small.  Learn more

foundation waterproofing in Philadelphia

Foundation Waterproofing

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Exterior waterproofing in Philadelphia

Exterior Waterproofing

Do you have leaking walls.  Is your basement constructed of stone?  Do you have a nicely finished basement that leaks?  We are pros at exterior waterproofing.  Call us for your free inspection today.  Learn more

basement drainage systems in Philadelphia

Basement Drainage Systems

Basement drainage systems can be one of the most effective ways to keep water out of your basement.  If your basement leaks when it rains heavily, this may be an option for you.  Call us for a free inspection and estimate!  Learn more

Fast, Easy & Reliable Basement Waterproofing Process

We provide a free inspection of your basement

We provide you with the options and pricing

We perform the job your select with pride

We leave you with a lifetime worry free warranty

What Our Philadelphia Clients Say

Our Basement Waterproofing Clients Say it Best

Allison G

After quotes and assessments with with multiple basement waterproofing companies we went with Basement Waterproofing Scientists, and I’m so glad we did! Darin had insight to the cause behind the leaks that none of the other companies pointed out...

T Massolina

Darin Garvey is excellent at communicating and was 100% there to make sure everything got done correctly. He had better prices than all of the competitors and his descriptions of what would be done were more accurate. Thanks again....

Charles Werner

Very professional and thorough. Provided a great explanation of the work to be done and the costs. The quality of the work was outstanding. I received estimates from many competitors and am so glad I went with them. Their pricing and service were better and I am thrilled with the quality.


Frequently Asked Questions

How much does basement waterproofing cost?

The costs vary widely on the cause of the problem and the size of the basement. The average customer we serve spends $5,800

Can I waterproof my basement myself?

In most cases, invasive repairs should be left to the professionals. Very mechanically inclined people with a good set of tools can likely accomplish poured concrete repairs on their own.

What is the best way to waterproof a basement?

This depends greatly on the cause of the leak. The absolute best way to waterproof a basement is to apply durable coatings to the exterior walls, and sub floor piping at the time of construction.

Is it better to waterproof basement from inside or outside?

This depends on the source of the leak. Interior systems are generally more economical than exterior systems. Exterior waterproofing does not rely on pumps so can be more reliable during a power outage or during a pump failure.

How do you completely waterproof a basement?

Complete basement waterproofing can be done with interior dual drainage application, or exterior foundation waterproofing.

Should I drylock my basement walls?

Sealants like Drylock can prevent minor seepage through block walls. With large water pressure over time, the block may become more porous requiring other methods.


Basement waterproofing in Philadelphia is a crucial aspect of maintaining the integrity and value of a property. It ensures that your basement stays dry, preventing damage due to moisture and water intrusion that can compromise the overall structural integrity of a home. The process often involves one or several  different methods, including the use of sump pumps, drainage systems, waterproof coatings, and specific building materials like hydraulic cement.

 What does a sump pump do? This device collects water that accumulates in a sump basin, typically located at the lowest point in the basement, and pumps it away from the house, preventing it from causing damage. Sump pumps are often used in conjunction with other waterproofing methods to provide a comprehensive solution against water intrusion.

In addition to sump pumps, a well-designed and installed drainage system is another cornerstone of basement waterproofing. Interior drains, such as a sub floor pressure relief system, can be highly effective in keeping basements dry. A sub floor pressure relief system (sometimes called a french drain) involves a trench filled with gravel and a perforated pipe that redirects water away from the basement. This system is especially useful in managing hydrostatic pressure, which can force water into the basement through foundation walls.

The use of hydraulic cement and waterproof coatings on concrete walls are also common practices in basement waterproofing. Hydraulic cement, which expands as it dries, is used to fill cracks and holes in concrete walls, creating a waterproof seal. This can be an economical first step and can also be used as a DIY basement waterproofing approach. 

Moreover, a waterproof coating can be applied to interior walls and floors as an extra layer of protection. This coating creates a barrier that prevents moisture from seeping through the concrete. It is important to note that while waterproof coatings are a useful part of the overall waterproofing plan, they should not be used as the sole method to keep a basement dry.