Underpinning a house in just 1-2 days

  • Fast resin injection underpinning method
  • 10 year insurance-backed guarantee and 60 year design life for material
  • Custom designed for your property - approved by our chartered engineers
  • Over 200,000 jobs completed with Geobear technology since 1983
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How do we deliver underpinning in just 2 days

We treat the soil under your home, stabilising the ground, closing cracks and resolving your subsidence issue.

Engineer designed treatment plan

Resin injection underpinning plan specific conditions of your soil, foundation and issues.
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We drill tiny holes in the affected area

They're around the size of a coin and usually near the external walls.
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We Inject Geopolymer Resin

This liquid then expands, hardens and stabilises the ground.
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The ground is instantly stabilised

We monitor levels as the ground stabilises and most jobs are completed in less than a day.

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Certified and Guaranteed

You receive a Certificate of Structural Adequacy and a 10 year  transferrable warranty.
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Book a free survey

Trusted by:

Trusted by thousands of homeowners and surveyors

I have used Geobear several times to help resolve ground instability. I would not hesitate to use them again or to recommend them to others

Alan Holmes DipSurv, MRICS, MCIAT, MCIOB Chartered Engineer
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See Geobear in action

  • 3 Bed Semi-Detached House in Croydon

    “Within a couple of days they're done and dusted and away and we can get on with our job”

  • Detached house in Essex

    “Compared to traditional underpinning this was a fraction of the time and a fraction of the cost”

  • Channel 4's “Help My House is Falling Down”

    AS SEEN ON
    CHANNEL 4

  • Hear from Geobear customers

    "The guys were here and within four hours they had underpinned the property.
Free Underpinning Quote

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Get free advice and an underpinning cost estimate from a subsidence expert

Free video inspection with a subsidence expert

One of our team will assess the local soil conditions.

We'll ask you to show us the damage, the outside of the property and trees and drains nearby.

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Free engineer-designed solution

Our team will design a resin injection underpinning treatment, reviewed and approved by our Chartered Engineers. There is no obligation and we'll advise on the best solutions for your property.

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Book your repair

If you decide to go ahead, we'll arrange for our engineers to complete the work.

There are no special access requirements, no need to move out and often you don't even need to move furniture.  

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Book your free survey

Get a free video survey and estimate

  • tick Video inspection with one of our subsidence experts
  • tick-1 Expert advice on your issues
  • tick-2 Engineer-designed treatment plan
  • tick-3 No obligation

Faster, cleaner underpinning solution with Geobear

When a home is affected by subsidence, the goal is always the same: to stabilise the property by addressing the weak ground beneath the foundations.

For decades, the only answer was traditional underpinning, but modern engineering has provided a faster, cleaner, and far less disruptive alternative: the Geobear resin injection underpinning solution.

While both methods aim to solve the problem, how they achieve this is fundamentally different.

 

Traditional underpinning vs. the Geobear resin injection underpinning solution

Feature Traditional Underpinning Resin Injection unerpinining
Process Major excavation, soil removal, and pouring concrete. Small, targeted injections of our specialist geopolymer resin into the ground.
Disruption Extreme. You will likely need to move out for weeks or months. Minimal. No digging, no mess. You stay in your home while we work.
Time Weeks or months. Typically 1-2 days.
Access Requires large machinery and extensive access around your property. Our equipment is compact and can be brought right to your door in our mobile unit.
Result A large concrete block beneath your foundations. The ground itself is strengthened and improved. It’s a solution for the ground, not just the building.

Understanding underpinning: What it is and when you need it

If you're searching for underpinning solutions for your home, it's likely because you've noticed cracks, sticking doors, or uneven floors — signs that the ground beneath your foundations may be moving.

Underpinning a house is the process of strengthening or extending those foundations to reach more stable ground. For decades, this meant only one thing: major excavation, concrete, and weeks of disruption. Today, specialist underpinning contractors like Geobear offer a modern resin injection alternative that achieves the same structural outcome — without the mess, the timescales, or the upheaval.

Why do house foundations need underpinning?

The most common causes include:

  • Clay soil shrinkage — particularly during dry summers, clay contracts and pulls away from foundations
  • Tree root activity — roots draw moisture from soil, accelerating shrinkage near the property
  • Leaking drains — water eroding or softening the soil beneath foundations over time
  • Poor original construction — foundations that were never deep or strong enough for the ground conditions

What are the alternatives to traditional underpinning?

Resin injection underpinning is now the leading alternative for most residential properties. Rather than excavating beneath your foundations, underpinning specialists inject a geopolymer resin directly into the ground. It expands, hardens within minutes, and stabilises the soil — completing what traditional underpinning achieves, but typically in one to two days.

If you'd like an underpinning quote with no obligation, our team can assess your property via a free video survey and provide a full engineer-designed treatment plan.

Frequently asked questions

Common signs include new diagonal cracks (often wider at the top), sticking doors or windows, and rippling wallpaper. While these are strong indicators, the only way to know for certain is with a professional assessment. We can help with an initial, no-obligation consultation to evaluate the signs.

Our solution is a highly engineered geopolymer resin. When injected into the ground, it expands with controlled force and hardens in minutes to improve the soil's strength. Once cured, the material is inert, stable, and environmentally neutral, meaning it won't release any harmful substances into the ground.

Traditional underpinning is like open-heart surgery, requiring major excavation, concrete, and weeks of disruption. Our solution is like keyhole surgery. We inject our material through small tubes, with no need to dig up your garden or move out. It’s faster, cleaner, and far less stressful.

Traditional underpinning can cost anywhere from £5,000 to £50,000+ depending on the scale of the problem — our resin injection method is often comparable or lower when the full cost of disruption is factored in.

Absolutely not. Our process is designed for your convenience. The work is quiet, clean, and our teams are highly professional. You and your family can stay at home and continue your daily routine without interruption.

Most residential projects are completed in just one or two days. The ground is strengthened almost immediately as our material cures to 90% of its full strength in about 15 minutes.

While our initial quote can be similar to underpinning, the total project cost is often significantly lower.

Our non-disruptive method saves you thousands in hidden expenses by allowing you to stay in your home, avoiding the need for alternative accommodation.

Furthermore, because there is no excavation, you also avoid the costs to get your home back to normal. These costs typically concern rebuilding your garden, patio, or driveway, making it a faster and far more cost-effective solution overall.

Yes. We have complete confidence in our engineered solutions. All our work on residential properties is backed by a 10-year, insurance-backed guarantee for your long-term peace of mind.

The best first step is to not panic. Contact us to arrange a friendly, no-obligation chat. We can discuss what you're seeing, answer your questions, and advise on the best course of action.