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Sagging Floors

Notice sagging floors in your home? With Groundworks, you get industry-leading repair services conducted by the nation’s leading experts.

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a home baseboard with a laser level across it indicating sagging floors

Level, stable floors are integral to the overall structural integrity of your Canadian house. If you notice your floors are sagging, it’s usually a sign that deeper structural issues need to be addressed immediately.

Sagging floors may signal moisture issues or floor joist decay.

At Groundworks, we excel in foundation repairs and preventative maintenance. Our experts diagnose and provide custom solutions for foundation issues, using SettleStop™ IntelliJack™ Crawl Space Jacks.

We examine sagging floor causes and provide an overview of our repair system, including our customer-centered approach.

Contact us for a free estimate for your sagging floor issues today!

What Are Sagging Floors?

Sagging floors, as the name suggests, are sloping or bowing floors that dip between supporting walls or beams. This might make your steps feel unsteady, or cause furniture to lean to one side.

While a visible slope or bow in the floor is an obvious sign of sagging floors, other indicators may be less apparent. If you notice any of the following common signs, don’t hesitate to contact us:

a rusted metal stand holding up sagging floors.

Sagging floors, like other structural issues, won’t improve on their own. If left untreated, they can worsen, potentially resulting in the floor detaching from the beams or support walls in more complex cases. Early detection and intervention are crucial to prevent this.

Causes of Sagging Floors

Foundation problems often result in sagging floors. Let’s explore the main causes:

Beam and flooring is breaking from the basement causing sagging floors
  • Pest Infestation: Termites, common in many parts of Canada, along with rodents or other pests, can weaken a home’s structure by damaging the wooden supports.
  • Water Damage: Moisture in an unencapsulated crawl space can cause structural decay through wood rot.
  • Floor Joist Problems: If floor joists are improperly placed, they may not adequately support the floor.
  • Wear and Tear: Over time, floor components, particularly those made from inferior materials or installed haphazardly, can degrade.
  • Installation Errors: Mistakes made during any stage of floor installation can contribute to sagging.
  • Foundation Shifts: Changes in the strata supporting the house’s foundation, typically due to soil expansion and contraction, can result in misalignment of the structural supports over time.

A professional inspection and evaluation are essential to identify the exact cause of sagging floors. At Groundworks, our first step is a thorough inspection, allowing us to tailor the right solution for your needs.

Can You Fix Sagging Floors?

Yes, sagging floors can be fixed. However, it’s not advisable to attempt this alone. Our technicians, who are professionally trained, use specialized tools and materials to complete even the most complex repairs.

DIY or “big box” solutions often don’t provide a long-term solution for sagging floors as they fail to address the fundamental issues occurring beneath the floors.

At Groundworks, we adopt a holistic approach. We develop lasting solutions by conducting precise assessments and installing custom-made, proven support systems for your home.

Groundworks’ Approach to Sagging Floors

Here are the steps we follow for sagging floor repair:

  • We conduct a thorough crawl space inspection
  • We diagnose the causes of damage
  • We install IntelliJack™ Crawl Space Jacks
  • We customize each jack to match the specific height of the crawl space
  • We make final adjustments to each jack to reach the specified height

We use the IntelliJack™ system, which supports over 24,000 lbs. per jack. We strategically place the jacks to ensure your home’s structural integrity meets both code requirements and our high standards. If necessary, we can adjust the jacks to restore the floors to their original position.

IntelliJack™ posts are superior to other jacks available at local hardware stores. They address the cause of sagging floors, not just the visible symptoms.

Why Act on Sagging Floors Immediately

While your foot may not break through the floor immediately, it’s crucial to quickly address the underlying problem for several reasons:

  • Prevent Further Damage: By identifying and rectifying the cause, you can prevent additional damage to your home, such as cracks in the walls or floors, or jammed windows and doors.
  • Improve Safety: Eliminate tripping hazards to ensure the safety of your family, pets, and guests.
  • Avoid Costly Repairs: The longer you delay fixing the sagging floor and foundation issues, the more complicated and expensive the repairs will become. In the worst case, you might need to replace the entire subfloor and flooring.
  • Enhance Property Value: Rectifying sagging floors improves curb appeal by removing visible signs of structural issues. Even if you’re not planning to sell soon, implementing a structurally sound preventative solution can increase your home’s value.

To prevent further damage to your home, contact the professionals at Groundworks.

Choose Groundworks for Sagging Floor Repairs

Ground Works man inspecting the outside of a home.

Looking for an expert solution to your saggy, bouncy floor issue? Our Groundworks team provides customer-focused, professional support. We identify the root cause of your structural issues and install custom crawl space jacks and other structural supports to solve them.

Contact us today to schedule your free inspection and estimate.


We aim to complete each job within two to three days. However, depending on the extent of the damage or other necessary steps, the repair may take longer. We will coordinate with your schedule to find the best time for you.

Every home is unique, so we provide custom quotes based on your needs. The cost can increase if the damage is extensive. Detecting the problem early usually results in a less time-consuming and costly repair.

Yes, with Groundworks’ special floor and foundation jack system, we can often solve the cause of sagging floors without complete replacement. However, if the floors are too damaged, replacement may be necessary for safety.