Email Us!

Call Us!


Click for a Free Quote!

Fill out our quote request
form for prompt service!

AM Wall Anchor & Water Proofing Blog Article:

Exterior Foundation Waterproofing Explained

waterproofing membrane installed around the exterior of a new construction home

Exterior foundation waterproofing protects your foundation walls by managing the moisture of the soil around your basement, slab, or crawlspace. Keeping your basement dry isn’t always as simple as installing a sump pump and calling it a day. Before moisture enters your home, it saturates the outside sol, which grows heavier and presses against your basement walls. Effective basement waterproofing incorporates both interior and exterior measures to manage this moisture, support your home’s integrity, and prevent damage that can leave you with a soggy basement and high repair bills.

Cause Vs. Effect

Interior basement waterproofing often treats the effects of soil oversaturation. This can include interior dehumidifiers, sumps to gather moisture, and a sump pump to move water out and away from the home actively. It’s largely concerned with managing moisture that is already inside the home, mitigating the risks it brings, and moving it elsewhere as soon as possible. 

Exterior foundation waterproofing seeks to prevent water from entering the home by controlling it before it can force its way through pipes, cracks, or gaps. This also helps keep the weight of the soil pressing against the sides of your foundation controlled, easing the stresses your walls have to hold back to maintain your home’s integrity. 

What is Exterior Foundation Waterproofing?

New construction basement foundation with a heavy duty waterproofing membrane installed

This process shouldn’t be confused with the broader waterproofing measures taken outside your home and around your property. While the goal of these broader waterproofing measures is to collect and control the flow of water and, in the process, protect your basement or crawlspace walls, exterior foundation waterproofing is more focused. Designed solely to keep your basement dry and walls secure, active and passive waterproofing measures are installed directly next to the walls of your foundation underground, where they can directly affect the soil and water closest to it. 

The Exterior Foundation Waterproofing Process

Exterior foundation waterproofing of existing properties is often more expensive and time-intensive than interior waterproofing. This is largely due to the need for careful excavation and wall preparation. It can be a great choice for new properties when it can be installed during the construction process, but it may also be the best next step for existing properties where interior drainage isn’t providing the moisture control needed to keep the property safe. Professional exterior foundation waterproofing is a straightforward process with time-tested results.

  1. Excavation – The land directly around your foundation is excavated down to the foundation footers. This gives your contractor complete access to the foundation walls for a thorough inspection during the waterproofing process.
  2. Repair and Barrier Application – The exposed foundation walls will be cleaned, and any damage will be assessed to determine its extent and severity. Damage found during the inspection will be repaired. This could be as minor as replacing eroded mortar in joints or the spaces between bricks or stones or more major repairs such as replacing damaged and cracked sections. Once the wall is repaired, a thin waterproof membrane may be applied, coating the wall to make it more resilient, or a sheet membrane may be placed against the wall. Basement or crawlspace window wells and vent wells may also be replaced, as leaking wells are frequent causes of basement moisture.
  3. Drainage Installation – Drainage pipes will be placed or replaced along the foot of your foundation. These French drains have perforations that allow water to enter from the soil. As with the interior drainage systems meant to keep your basement dry, once inside the drainage system, water will be collected and directed away from your foundation walls to a natural drainage source.
  4. Backfilling—Soil and substrate will be carefully added back around your home’s foundation. Care will be taken to avoid damaging your repaired foundation walls, the new drainage system, moisture barriers, and window wells. Properly backfilled soil will also help control moisture by helping to direct water either away from your home or into the drainage system for removal.
  5. Landscaping and Final Touches – Grass will be planted where appropriate to help secure your new soil and aid water management. You can also add water-sequestering bushes and other landscape waterproofing heroes to manage moisture further. Downspout extensions may be added to your gutter system to further reduce oversaturation around your foundation walls or direct runoff into your exterior foundation waterproofing drainage system for easy removal.

When is It Time to Consider Exterior Foundation Waterproofing?

While it’s always best to consult a foundation expert when considering your foundation waterproofing needs to ensure your property’s unique concerns are being met, there are a few good times to consider exterior foundation waterproofing proactively.

  1. New Construction – Exterior drainage is easier to add during new construction when the land is already excavated, and the addition won’t disrupt the household. Best of all, working to keep your basement dry from the beginning minimizes the need for costly mitigation and remediation measures down the road.
  2. Other Waterproofing Methods Aren’t Working – If your interior drainage isn’t keeping your basement dry, exterior foundation waterproofing may be needed as part of a more comprehensive foundation waterproofing and support plan.
  3. Excavation is Needed for Foundation Repair – If your foundation walls are damaged and in need of repairs requiring full or partial excavation, it can be a great time to install the drainage that will better protect your newly repaired walls. 
New construction addition to a residential home with exterior basement waterproofing

Get Your Free Foundation Inspection

There’s no cost or obligation to have an experienced foundation professional inspect the interior and exterior of your property for signs of damage and to assess the risks it faces. They’ll schedule a visit, assess your property, and tailor a foundation waterproofing plan that keeps your home safe and on solid footing. Investing in a dryer basement helps prevent high repair bills down the road. Schedule your free quote with A.M. Wall Anchor & Waterproofing today.

Want to learn More about A.M. Wall Anchor & Waterproofing Services?

Click any of the links below!

Don't Delay! Click To Contact Us Now! 

Don't let that small problem destroy your investment!

Just send in some small details and we’ll get back to you quickly!  Protect your home and rest easy knowing you and your loved ones are safe! 

Contact Info

Home Improvement Giveaway Terms & Conditions


1.1 The Home Improvement Gift Card Giveaway (the “Giveaway”) is open to residents of the following counties in Ohio & Pennsylvania who are 21 years old or older at the time of entry:

Ohio Counties:
  • Ashtabula County
  • Columbiana County
  • Jefferson County
  • Mahoning County
  • Trumbull County

Pennsylvania Counties:

  • Allegheny County
  • Armstrong County
  • Beaver County
  • Bedford County
  • Butler County
  • Cambria County
  • Cameron County
  • Centre County
  • Clarion County
  • Clearfield County

Pennsylvania Counties (cont.):

  • Crawford County
  • Elk County
  • Erie County
  • Fayette County
  • Forest County
  • Greene County
  • Indiana County
  • Jefferson County
  • Lawrence County
  • McKean County
  • Mercer County
  • Potter County
  • Somerset County
  • Venango County
  • Warren County
  • Washington County
  • Westmoreland County

1.2 Employees of AM Wall Anchor & Waterproofing, its affiliates, subsidiaries, advertising and promotion agencies, and their immediate family members or those living in the same household are not eligible to participate.

Giveaway Period:

2.1 The Giveaway begins on March 8 at 10:00 AM EST and ends on March 17 at 6:00 PM EST (the “Giveaway Period”).

How to Enter:

3.1 To enter, participants must complete the Home Improvement Giveaway Page entry form.

3.2 Only one entry per person is allowed. Multiple entries will be disqualified.

3.3 Entries that are incomplete, illegible, or late will be void and not eligible.

Winner Selection:

4.1 Winners will be selected at random from all eligible entries received during the Giveaway Period.

4.2 The odds of winning depend on the number of eligible entries received.

4.3 Winners will be notified via email within 24 hours of the end of the Giveaway Period.

4.4 If a potential winner cannot be contacted within 2 days of the first attempt to contact them, or if they fail to comply with the official rules, the prize may be forfeited, and an alternate winner may be selected.


5.1 The prize for the Giveaway is one $500 Home Depot Gift Card.

5.2 The prize is non-transferable and cannot be exchanged for cash or any other item.

5.3 AM Wall Anchor & Waterproofing reserves the right to substitute the prize with another of equal or greater value if the advertised prize becomes unavailable.


6.1 By participating in the Giveaway, participants agree to allow AM Wall Anchor & Waterproofing to use their name, likeness, and entry for promotional purposes without additional compensation, except where prohibited by law.

General Conditions:

7.1 AM Wall Anchor & Waterproofing reserves the right to modify, suspend, or cancel the Giveaway at any time for any reason.

7.2 By participating, participants agree to be bound by these official rules and the decisions of AM Wall Anchor & Waterproofing, which are final and binding in all matters relating to the Giveaway.

7.3 AM Wall Anchor & Waterproofing is not responsible for any lost, late, incomplete, illegible, or misdirected entries, or for any technical or human error that may occur in the administration of the Giveaway.

7.4 The Giveaway is subject to all applicable laws and regulations and is void where prohibited.

Release and Limitations of Liability:

8.1 By participating in the Giveaway, participants agree to release and hold harmless AM Wall Anchor & Waterproofing, its affiliates, subsidiaries, advertising and promotion agencies, and their respective officers, directors, employees, and agents from and against any claim or cause of action arising out of participation in the Giveaway or receipt or use of any prize.

8.2 AM Wall Anchor & Waterproofing is not responsible for: (a) any incorrect or inaccurate information, whether caused by participants, printing errors, or by any of the equipment or programming associated with or utilized in the Giveaway; (b) technical failures of any kind, including, but not limited to malfunctions, interruptions, or disconnections in phone lines or network hardware or software; (c) unauthorized human intervention in any part of the entry process or the Giveaway; (d) technical or human error which may occur in the administration of the Giveaway or the processing of entries; or (e) any injury or damage to persons or property which may be caused, directly or indirectly, in whole or in part, from participant’s participation in the Giveaway or receipt or use of any prize.

8.3 If, for any reason, an entry is confirmed to have been erroneously deleted, lost, or otherwise destroyed or corrupted, the participant’s sole remedy is another entry in the Giveaway.


9.1 By participating in the Giveaway, participants agree to receive marketing communications from AM Wall Anchor & Waterproofing. Participants can opt out of receiving these communications at any time.


The Giveaway is sponsored by AM Wall Anchor & Waterproofing.

By participating in the Giveaway, participants agree to abide by these official rules and the decisions of AM Wall Anchor & Waterproofing, which are final and binding in all matters relating to the Giveaway.

For questions or concerns regarding the Giveaway, please contact