cracked exterior brick wall on a terraced house

Resin injection Leeds

Resin injection in Leeds: a less disruptive option

Describe the cracks or slopes you have noticed at home. A specialist will read what you send and tell you whether resin injection suits your ground, without charging for that first look.

Describe the problem Read about subsidence first

Subsidence repair options around Leeds

Different ground conditions need different repairs. A specialist picks the method that fits the soil beneath your home, whether that means filling voids under a slab or supporting deep footings on made ground.

  • leeds subsidence

    Subsidence Help

    A specialist surveys the movement in your home, identifies why the ground has shifted, and sets out what needs doing next.

  • leeds subsidence

    Underpinning

    A contractor excavates beneath the existing footings and pours new concrete bases where the ground cannot support the current depth.

  • leeds subsidence

    Concrete Cracking

    A specialist examines cracked slabs, drives or garage floors to determine if the damage is surface wear or structural settlement.

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    Screw Piling

    A piling firm drives steel helical piles through weak fill or old mine workings to reach load-bearing strata far below.

How it works

Geopolymer ground stabilisation in Leeds homes

Foundation lifting without underpinning relies on expanding resin to fill voids and compact loose soil beneath a settled floor or footing.

  • Lifting a settled floor The specialist drills small holes through the slab and injects geopolymer resin. As it expands, it compacts the soil beneath and raises the floor back toward level.
  • Stabilising footings Soil injection for cracked walls starts at the foundation edge. The resin fills voids left by shrinking clay or washed-out material, stopping further movement.
  • Monitoring the lift Laser levels sit on the walls throughout the process. The specialist watches the readings constantly and stops injecting the moment the target height is reached.
  • Where it does not fit Deep mining voids or heavily waterlogged ground may need screw piling instead. A survey determines which method suits the soil beneath your home.
a large building with a green and white sign in front of it

What you do and what the specialist handles

Most of the effort falls on the contractor. You describe the symptoms at home, clear a path to the affected room, and let the specialist handle the technical work from there.

The specialist

  1. Survey the movement and check the soil conditions beneath the house
  2. Drill small diameter holes through the slab or alongside the footing
  3. Inject the geopolymer resin while watching laser levels on the walls
  4. Stop the injection once the floor reaches the agreed tolerance
  5. Seal the drill holes and leave the room ready for redecoration

You

  1. Describe the cracks, sticking doors or sloping floors you see
  2. Clear furniture away from the affected wall or floor area
  3. Let the contractor into the rooms they need to access

Checks before resin injection begins

A specialist follows a fixed sequence so they know exactly what lies beneath the floor before any drilling starts. Skipping steps risks treating the wrong cause.

  1. Visual survey of cracking patterns

    The specialist maps where cracks appear, their width, and direction. Stepped cracks near corners point to footing movement; horizontal lines suggest thermal expansion instead.

  2. Soil and drainage inspection

    Trial pits or boreholes reveal whether the ground is shrinkable clay, loose fill, or sand. Drain cameras rule out leaking pipes washing soil away.

  3. Level survey of the floors

    Precise measurements show how far the slab has dropped and where the lowest point sits. This tells the contractor how much lift the resin needs to achieve.

  4. Suitability assessment for resin

    The specialist compares the soil type, depth of the problem, and building load against what geopolymer can support. Some sites need deeper foundations instead.

If the drainage check finds a leak, that must be repaired before any ground stabilisation proceeds.

Questions about resin injection for your home

Cost compared to underpinning
Resin ground injection cost is typically lower than digging out and pouring new concrete bases. Since no heavy excavation is needed, the saving holds up over time as long as the ground remains stable.
Mess and living at home
The work produces very little mess inside the house. Drill holes are small, dust is contained, and most homeowners stay in their rooms while the contractor moves along the affected wall.
Insurance acceptance
Many insurers accept this method as an alternative to underpinning for a house, provided a structural engineer specifies it. Check your policy wording or ask the loss adjuster handling your claim.
Redecorating after the work
Once the resin cures, which happens within hours, you can lay new flooring or paint over filled cracks. There is no waiting weeks for concrete to set.
Building regulations approval
Structural repairs usually require building control sign-off. The specialist submits the engineering calculations and method statement so the local authority can approve the floor slab re-levelling in Leeds.

Ask about resin injection for your home

Send details of the cracks or slopes you have noticed. A specialist reads what you write and replies with whether resin suits your ground, with no obligation to book work.

  • No fee for the first look
  • No booking required
  • Reply within working hours

What you tell us goes to one independent subsidence specialist covering Leeds, and that specialist may pay us for the introduction. You are charged nothing by this website, seeking further quotations is entirely up to you, and our privacy notice explains in more detail how your details are handled.

Prefer email? Write to hello@leedssubsidence.co.uk