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How to Maintain Your House's Foundation

blog Choose Chad Team July 8, 2025


A home’s foundation is its most critical structural component. It supports the entire building, sets the stage for long-term durability, and significantly influences property value. In New Buffalo, a region facing seasonal soil shifts, moisture fluctuations, and freeze‑thaw cycles, proper foundation maintenance is essential. Homeowners committed to preserving their investment need to stay proactive, understand local conditions, and perform regular upkeep.

This guide provides comprehensive, practical advice on foundation care—covering inspections, moisture control, landscape strategies, and seasonal maintenance—helping New Buffalo homeowners protect their property and ensure lasting structural integrity.

1. Why Foundation Maintenance Matters

The foundation transfers your home’s weight to the ground and safeguards it against shifting soils, erosion, and extreme weather. Left unchecked, foundation issues can lead to structural damage: cracked walls, uneven floors, sticking doors, and costly repairs—such as underpinning or wall stabilization. Regular maintenance prevents small issues from becoming major liabilities and preserves both safety and resale value.

2. Know Your Foundation Type

Foundation maintenance starts with awareness:

  • Concrete slab foundations are poured directly onto the ground. They are vulnerable to moisture infiltration and soil shifts.
  • Crawl space (pier & beam) foundations offer ventilation but can suffer from moisture, rot, and pests.
  • Basement foundations provide added living space but require rigorous waterproofing to prevent flooding or seepage.
Each type demands specific maintenance routines and protection strategies, especially in New Buffalo's lake‑effect environment.

3. Conduct Regular Inspections

A proactive homeowner regularly walks around the home’s perimeter and interior, inspecting for signs like:

  • Vertical, horizontal, or stair-step cracks in walls and floors
  • Gaps around doors, windows, and baseboards
  • Bowing, leaning, or outward bulging of foundation walls
  • Uneven or sloping floors
  • Mold, mildew, or persistent dampness in basements or crawl spaces
  • Water stains, efflorescence, or soft spots in soil near the house
Document findings in a foundation log—photographs with dates—to track changes and identify escalating issues over time.

4. Control Water Around the Foundation

Water is the top threat to foundations. Toward this end:

a. Maintain Proper Grading

Ensure soil slopes away from the foundation at a 5% grade for at least 5 feet. This discourages pooling and reduces hydrostatic pressure.

b. Keep Gutters and Downspouts in Check

Clean gutters twice annually to prevent overflow. Extend downspouts at least 5–10 feet away from the foundation using splashes, flexible piping, or underground drains.

c. Install Drainage Solutions

In drainage‑challenged zones, add French drains, surface drains, or gutter extensions. A well‑placed sump pump in basements or crawl spaces can redirect water before it impacts the foundation.

d. Monitor and Repair Plumbing Leaks

Leaks from pipes—even slow ones—can saturate soil, causing swelling or erosion. Schedule annual plumbing inspections and fix any drips promptly.

5. Manage Soil Moisture

Seasonal dryness and drought can cause soil to shrink, while heavy rain or melting snow causes it to expand. This soil movement can stress the foundation. To mitigate:

  • Water the perimeter evenly during extended dry spells to prevent excessive soil shrinkage.
  • Retain mulch beds away from foundation walls to avoid uneven soil moisture.
  • Trim tree roots, or install root barriers to prevent roots from disrupting soil beneath the house.
Balanced moisture control stabilizes soil movement and foundation settlement.

6. Create a Protection Buffer

Landscaping choices greatly affect foundation health:

  • Plant trees and shrubs at least 10–15 feet from the house. Large root systems can pull moisture from soil and create instability.
  • Use smaller plants directly beside the home in shallow-rooted beds.
  • Avoid impermeable barriers near the foundation that hold water—like wooden beds—a source of rot and moisture retention.

7. Waterproof and Seal

For basements and crawl spaces:

  • Apply exterior waterproofing membranes during construction or renovation.
  • Seal cracks with hydraulic cement or appropriate sealants.
  • Consider interior sealers for damp walls and upgrade to exterior solutions if seepage persists.
  • Install vapor barriers under floors or on walls in crawl spaces to reduce moisture and improve air quality.

8. Repair Small Cracks Immediately

Cracks under ¼ inch are common, but still warrant attention:

  • Fix minor foundation cracks with epoxy or polyurethane injection—especially working cracks that change over time.
  • Seal masonry or concrete joints with flexible polyurethane or silicone sealant to prevent water infiltration.
  • Widen or bulging cracks should be professionally evaluated, as they can signal serious structural concerns.

9. Maintain the Roof and Exterior

The roof, siding, and flashing direct moisture away from your foundation:

  • Inspect roof shingles and flashing seasonally, especially after winter.
  • Clean and repair siding to prevent leaks.
  • Seal or replace protective barriers around basement windows and exterior penetrations.
Consistent upkeep here helps reduce the load on foundation waterproofing systems.

10. Assess HVAC and Plumbing Systems

HVAC condensation lines, humidifiers, and old plumbing can seep water near the foundation. Maintain them by:

  • Checking condensate drains and line flow.
  • Controlling humidity levels in basements and crawl spaces.
  • Upgrading outdated plumbing systems and insulating pipes to prevent freezing.

11. Take Action the Smart Way

If problems persist or signs escalate, seek professional foundation assessment. Licensed contractors can perform:

  • Soil stabilization and underpinning
  • Exterior excavation and waterproofing
  • Foundation rebuilds or wall reinforcement
Always vet contractors for licensing, local experience, insurance, and clear estimates.

12. Seasonal Maintenance Checklist

Spring

  • Clean gutters and downspouts
  • Inspect foundation after thaw
  • Regrade and reseed the lawn as needed

Summer

  • Water around the foundation during dry months
  • Trim plants and maintain clear drainage paths

Fall

  • Clean gutters of leaves
  • Check downspout positioning before winter

Winter

  • Keep snow away from foundation
  • Monitor exterior ice dams and remove them carefully

13. Why Attention Now Saves Money

Small preventative steps—like cleaning gutters or sealing a crack—can prevent catastrophic foundation damage. Basic measures typically cost under $500. In contrast, foundation repair in this region can range from $10,000 to $30,000 or more. By acting early, homeowners in New Buffalo can protect their property, peace of mind, and resale value.

Maintain Your Investment with Confidence

Proper foundation care protects the entire home. For New Buffalo residents, keeping a proactive maintenance routine is essential to long-term stability and property value.

If you’re planning to buy or sell a home in New Buffalo and wish to ensure the foundation is sound, Chad Gradowski of Chad Gradowski & Associates can guide you toward trusted home inspectors, local contractors, and expert advice every step of the way.



About The Authors

Choose Chad Team, led by Chad Gradowski, is comprised of top-producing New Buffalo, MI real estate agents for Coldwell Banker. The team serves the real estate needs of Grand Beach, Union Pier, Lakeside, Harbert, Sawyer, Stevensville, and its surrounding areas. Don't miss out on the unparalleled expertise and personalized service offered by the Choose Chad Team. Whether you're buying or selling a home, trust them to guide you toward success. Contact Choose Chad Team today to make your real estate goals a reality!

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Don't miss out on the unparalleled expertise and personalized service offered by Chad Gradowski and the ChooseChad Team. Whether you're buying or selling a home, trust the #1 Real Estate Agent in Southwest Michigan to guide you towards success. Contact Chad today to make your real estate goals a reality.