Cracked walls can be a sign of structural damage caused by subsidence or ground movement.
We can fix the cause of wall cracks in your home using our modern, non-invasive underpinning techniques. Helping to protect your biggest asset.
Get a FREE site assessment in 3 simple steps:
Step 1:
Fill in this online form (include a brief note about the type of issues you are experiencing).
Step 2:
Our friendly team will contact you to schedule a site assessment.
Step 3:
One of our ground engineering experts will visit your home, assess the damage, and ascertain the likely cause. They will then provide you with a detailed quote.
Mainmark’s non-invasive solutions help fix wall cracks. Before and After treatment:
How we get your home back to level in as little as a day.
Step 1: Our technicians drill small holes around the problem area
Strategically-placed injection holes are barely visible, with work typically carried out like key-hole surgery from the outside of the house through 16mm diameter tubes, reducing to as little as 6mm in diameter if applied from inside the home.
Step 2: Polyurethane resin is injected and lift is monitored
Teretek expanding polyurethane resin mix is injected through very small tubes into the ground of the affected area. Our technicians closely monitor the lift with real time laser level monitoring.
Step 3: Unique two-in-one solution improves ground bearing capacity and fills voids
When Teretek is injected into the ground it’s components mix together and expand by chemical reaction, which strengthens the ground, re-levels the building and fills voids quickly and with minimal disruption.
Step 4: Building is brought back to level, wall cracks close-up and floors are lifted
Benefits of Teretek:
✓ Ground beneath building is strengthened
✓ Soil is compacted
✓ Voids in the ground are addressed
✓ Your home becomes structurally sound, helping secure its future
Giving you peace of mind
We provide an industry leading 50-year product warranty and we are licenced builders who provide Home Warranty Insurance/Builders Warranty Insurance.
Mainmark | Teretek® Resin Injection | How it works?
Types of Wall Cracks
Download our Guide to Wall Cracks and learn about the typical type of wall cracks that form in homes and why do they appear?
Step Crack
Often found on masonry walls, they appear like steps in the brickwork/blocks and typically follow mortar lines. The mortar and masonry deteriorates due to the movement of the affected wall.
Horizontal Crack
Found running horizontally between bricks and in some instances, they transition to become a step crack. Internally they typically appear as gaps between the skirting board and floor or between the cornice and ceiling.
Articulation Joint Crack (Expansion joint)
Usually visible in building extensions where two walls join and in modern buildings at the sides of large window and door openings. The gap is often wider at the top of the joint, exposing the lining.
Corner Crack
Buildings built using clay bricks are susceptible to cracks in corners as overtime the clay expands creating lateral force pushing against each other. The mortar around the clay brick deteriorates exposing gaps in the brickwork.
Vertical
Evident in both masonry or concrete walls where the crack is wider at the top, indicating the wall settling or heaving. They are normally jagged or zig-zag and don’t follow a uniform pattern.
Want to learn more about the signs of subsidence?
Explore our interactive house and view typical subsidence problems around your home
