Sandstone Foundation Repair Winnipeg
Old-world charm meets modern-day challenges when it comes to sandstone foundation repair. At Assured Foundations, we specialize in restoring and stabilizing sandstone basement walls throughout Winnipeg. These beautiful, historic foundations require precise techniques, the right materials, and a deep understanding of the stone’s characteristics to ensure both safety and preservation.
Whether you’re dealing with shifting blocks, cracks, or crumbling mortar, we provide permanent solutions while respecting the historical value of your home.

Why Sandstone Foundations Fail Over Time
Sandstone is a soft, porous material that was commonly used in Winnipeg homes built in the late 1800s and early 1900s. While attractive and breathable, sandstone isn’t as structurally resilient as modern concrete—and it doesn’t tolerate neglect.
Common causes of sandstone foundation problems include:
Freeze-thaw damage in Winnipeg winters
Water absorption and saturation
Mortar degradation or erosion
Soil pressure pushing against basement walls
Poor drainage or outdated waterproofing
Lack of proper maintenance or repointing
If left unchecked, these problems can lead to bowing walls, moisture damage, and structural instability.
Signs You Need Sandstone Foundation Repair
Crumbling or flaking sandstone basement walls
Visible cracks or gaps between blocks
Water seeping through foundation walls
Bowing or bulging sections of the wall
Missing or deteriorated mortar
Musty smells or dampness in the basement
Shifting foundation leading to uneven floors
If you’ve noticed any of these signs—don’t delay. Sandstone issues only get worse with time.
Our Sandstone Foundation Repair Services
1. Sandstone Repointing
We restore the integrity of your foundation by carefully removing deteriorated mortar and applying a custom-matched, breathable mortar suited for repairing sandstone foundations. This process, known as repointing, is essential to reinforce the structure and prevent further moisture infiltration.
Need a quote for repointing or repair? We offer free assessments across Winnipeg.
2. Structural Wall Reinforcement
When your sandstone walls begin to bow or separate under soil pressure, we install structural reinforcements such as steel I-beams, carbon fiber straps, or interior wall bracing. These solutions prevent collapse and stop progressive movement in your foundation.
3. Crack and Gap Filling
We repair visible fractures in the sandstone and between stones using materials that match the original structure while allowing for natural breathability and drainage. Filling cracks in sandstone foundation is critical to keeping out water and pests.
4. Waterproofing Sandstone Foundations
Because sandstone is porous, water management is essential. We provide complete sandstone foundation waterproofing, including:
Exterior excavation and sealing
Interior vapor barrier installation
Sump pump systems
Weeping tile installation
Drainage correction and grading
5. Full Wall Rebuild or Block Replacement
If the damage is too far gone, we offer partial or full sandstone wall rebuilds. We preserve as much original material as possible and rebuild using historically accurate methods and reinforcement techniques.
Sandstone Foundation Repair Cost in Winnipeg
The cost of repairing a sandstone foundation depends on the condition of the mortar, the extent of cracking or bowing, and whether structural reinforcement is needed.
Service Type | Estimated Cost Range |
---|---|
Minor Repointing & Crack Repairs | $1,500 – $4,000 |
Full Repointing (Basement Walls) | $4,000 – $10,000+ |
Structural Wall Bracing or Anchoring | $3,500 – $12,000+ |
Waterproofing & Drainage Solutions | $2,500 – $6,500 |
Full or Partial Wall Rebuild | $12,000 – $30,000+ |
Want an exact quote for your home? Call today for a free, no-pressure inspection.
Why Choose Assured Foundations?
10+ Years of Experience Restoring Stone Foundations
Specialized in historic sandstone and limestone repair
Custom mortar matching for seamless aesthetic
Respectful of heritage homes and architectural value
Fully licensed, insured, and warranty-backed
Transparent pricing with no upselling or surprises
We’re not just foundation contractors—we’re preservation specialists. When it comes to repairing sandstone foundations, we protect your structure and your home’s legacy.
Book Your Free Foundation Inspection Today
Your sandstone foundation can last another 100 years—but only if it’s properly maintained. If you’re seeing crumbling walls, water in the basement, or signs of movement, don’t wait.
Call Assured Foundations at 204 998 1850
Or submit our short online form and we’ll get back to you within 24 hours.
Schedule An Appointment
If you need help immediately, please email
reply@assuredpropertymgmt.com
Or you can schedule an appointment by submitting the form below.