Structural Repairs in London
Commercial and Residential Structural Repairs in London
Buildings in London may be in need of structural repair due to a variety of issues, and subsidence is a common
problem. Subsidence can lead to structural damage, and it is important that any damage is fixed quickly to
avoid further problems.
There are several reasons why buildings may suffer from structural damage caused by subsidence. Environmental
factors such as rain impacting the foundational soil may lead to subsidence. Many historic buildings in London
will have foundations that have become weakened through years of wear and tear caused by natural and man-made
Properties in busy areas of London may also need structural repair. Vibrations from traffic and heavy
machinery often put stress on the foundations of buildings, causing movement in the soils beneath and
ultimately causing subsidence.
For business and property owners in London who need structural repairs, We provide the best solution. SAU has
a team of expert engineers who are dedicated to providing the most effective structural repair work.
Cracked Wall Repairs London
SAU specialises in solutions for cracked walls for customers in London. The experienced team are on hand to
provide repairs and preventative work on a variety of projects. All work completed to the highest standard
with minimal disruption.
One of the first signs of significant structural damage caused by subsidence is cracked walls. Although in
some cases, the appearance of cracked walls might not be significant, it often the case that immediate
attention is needed. It may be the case that the foundations of the property are sinking or are damaged. If
this is the case, fast action is needed to prevent further damage.
Large cracked walls are usually a sign that the foundations of the building have weakened. These cracks may
begin to form around windows, doorways or corners of the building. Thinner, hairline cracks are usually a sign
of less significant issues that may need so be patched and repainted.
Why are larger cracks appearing?
This is usually a sign of weakened foundations, this has then lead to the building sinking into the ground.
This is known as subsidence and it may be caused by issues with the soil underneath the building becoming too
wet or too dry. Properties in busy areas of London are often affected by environmental factors. High traffic
areas in London can lead to ground vibrations that may impact the foundations of a property and lead to
Keep a close eye on cracks that appear, if they become larger then it is a sign that action needs to be taken
to avoid significant damage.
Solutions for cracked walls London
At SAU, we provide solutions for both domestic and commercial properties with cracked walls. Regardless of the
size of the project, our team of experts are on hand to provide effective and long lasting support to
Experts at SAU will carry out an initial inspection of the property to identify the cause of the cracked
walls. Once a plan has been drawn up, work will begin immediately.
If the cracked walls are caused by problems with the foundations, it is usually the case that the property
will need to be re-levelled. At SAU, we employ modern and effective approaches to re-levelling. This approach
is superior to traditional concrete underpinning methods, and is far less invasive.
Once re-levelling work has been carried out, large cracks will close as the property is raised, leaving only
hairline cracks that are then patched and painted.
Treatment for cracked walls
The treatment for cracked walls that is caused by subsidence involves the re-levelling and strengthening the
ground under the building. As the foundations are re-levelled the cracked walls will close up and the
remaining cracks can be easily repaired.
Usually this process, known as underpinning involves excavation of the foundations to allow for pouring of
concrete. This process can be extremely costly and time consuming, with projects often taking weeks and months
At SAU we do use a modern approach to underpinning which does not involve any excavation of the site, instead
our resin injection method is far more efficient and less costly. Without the need for excavation, the time
taken to repair the foundations is a fraction of what it would be with traditional underpinning, and there is
no need for customers to vacate the building as work is completed.
Causes of Sinking Floors
There are several causes of sinking floors, it is often the case however, that subsidence caused by water
interference is the main cause.
Water interference may come from several factors both natural and man-made, these may include:
• Damages drains and burst pipes
• Extensive rainfall
• Removal of resources such as gases, liquids or minerals from the ground
• Tree roots absorbing the water from soils
• Vibrations from traffic and heavy machinery
Solutions to Sinking Floors in London
Sinking floors can happen at any property and although there are several causes, it is usually the case that
it is being caused by subsidence.
Resin injection solutions by SAU can repair the cause of sinking floors and in most cases, lift the floor to
its original place.
In most cases, sinking floors are caused by the concrete slab set within a buildings structural walls. The
team at SAU can fix this issue in one day; by using resin injection through drilled holes in the affected
area, the expanding resin will lift concrete floors back into place.
The process of resin injection is non-invasive as it does not require the use of excavation. Resin injection
with SAU is a far superior alternative to traditional underpinning and it can be completed in as little as one
day, without the need for homeowners to vacate the property.