Exterior Foundation Insulation

Keeping the cold out and the heat in starts at the ground level. At SolidHome Concrete Solutions Corp., our exterior foundation insulation services do more than just lower your heating bills—they actively protect the lifespan of your concrete.

By wrapping your foundation from the outside, we move the “thermal boundary” of your home further out. This means the concrete wall itself stays closer to room temperature, preventing the extreme temperature swings that cause expansion, contraction, and cracking.

The Benefits of Insulating from the Outside

  • Stops Freeze-Thaw Damage: By keeping the concrete warm, we eliminate the risk of moisture freezing and expanding inside the foundation walls.
  • Reduces Basement Condensation: Warm, humid indoor air won’t condense on your basement walls if the concrete is insulated from the freezing exterior soil.
  • Protects Waterproofing: Rigid exterior insulation acts as a physical shield, protecting your waterproofing membrane from rocks, roots, and settling backfill.
  • Lower Energy Bills: A continuous layer of exterior insulation provides a massive thermal break, making your basement significantly warmer and cheaper to heat.

Our Installation Process

We carefully excavate the perimeter of your foundation to expose the bare concrete. After cleaning and preparing the wall (and addressing any necessary waterproofing or crack repairs), we install high-density rigid foam insulation panels. The panels are secured and sealed to provide a continuous, highly effective thermal barrier before the area is safely backfilled.

Upgrade Your Foundation’s Defense

Whether you are finishing your basement or just tired of a freezing cold lower level, exterior insulation is a smart investment in your property. Reach out to SolidHome Concrete Solutions Corp. to learn more about protecting your foundation from the outside in.

Frequently Asked Questions: Exterior Insulation

Do I really need exterior insulation if my basement is already insulated on the inside?

Interior insulation keeps your living space warm, but it leaves your concrete foundation exposed to the freezing soil outside. This can actually make the concrete colder, increasing the risk of freeze-thaw damage and cracking. Exterior insulation protects the concrete itself by keeping it closer to the ambient temperature of your home.

Will digging up my foundation ruin my landscaping or driveway?

Excavating the perimeter of a home does require moving soil, which can disrupt plants, walkways, or grass immediately adjacent to the foundation. We discuss the exact path of excavation during your consultation to minimize the impact as much as possible, but some disruption to the immediate perimeter is necessary to do the job right.

Does exterior insulation replace the need for waterproofing?

No, they serve two different purposes but work perfectly together. Waterproofing membranes stop moisture from entering the concrete, while rigid insulation stops heat transfer. In fact, installing exterior insulation over a new or existing waterproofing membrane provides an excellent physical shield that protects the waterproofing from backfill damage.

Do I need a structural engineer to approve exterior insulation?

For standard excavation, waterproofing, and insulation, an engineer is not required. SolidHome Concrete Solutions Corp. specializes in these protective and preventative repairs. However, if we excavate and uncover severe bowing, structural shifting, or major damage to the foundation walls, we will pause the work and recommend consultation with a 3rd party licensed structural engineer to assess the safety of the structure before we proceed.

How long does the process take?

Most standard residential exterior insulation projects take a few days, depending on the size of the home, the depth of the foundation, and weather conditions.