Patios & paving · Practical advice
Loose paving: causes and prevention
Look more closely at the causes of unstable paving and how installation choices affect the result. The guide brings together common problems and prevention principles.
Specify the system as well as the slab
This guide focuses on preventing instability in a new patio or a substantial repair. Start by confirming how the selected paving is intended to be installed. Slab material, dimensions, expected use and supporting construction need to work together.
Ask the installer to describe the ground preparation, bedding approach, bond where required, jointing and drainage. A product sample shows the finish, but it does not describe the complete installation that will keep it secure.
Set inspection points before work begins
Agree which stages you would like photographed before they are covered. Useful records include exposed ground, completed supporting layers and representative bedding details. These are not a replacement for competent installation, but they make the work easier to understand later.
If unexpected soft ground or buried material is found, discuss the remedy and any change in scope before construction continues. Covering a problem quickly can make it much more expensive to investigate after the paving is complete.
Control the details that affect stability
For a conventional mortar-bedded patio, reliable support and an appropriate bond are central to the design. Weather, material preparation and working time can affect the outcome. The product instructions should determine how components are used together.
Edges, narrow cuts, step transitions and drainage covers deserve the same attention as the main field of paving. Ask how movement will be accommodated and how water will leave the area. Attractive joints cannot compensate for instability below them.
Protect the finished work
Agree when people, furniture and equipment can return. Do not assume that a surface which looks dry has reached its intended strength. Keep early loads within the installer's instructions and report movement before it causes further damage.
At handover, retain material details, photographs and care instructions. During normal use, check joints and drainage occasionally. If a defect appears, use those records to support a clear repair discussion rather than assuming every loose unit has the same cause. Good prevention combines a suitable specification, careful installation and sensible aftercare.
Common questions
What should I ask when comparing patio quotations?
Ask for the preparation, bedding, drainage, jointing, disposal and finishing scope. Similar slab prices can conceal very different amounts of work beneath them.
Can I inspect everything myself during installation?
You can ask questions and keep records, but hidden technical details may need a competent assessment. Agree communication and inspection opportunities with the installer beforehand.
Discuss your project
Tell us what you would like to change and share photographs of the area. We can discuss the next steps for your property.