Does artificial grass drain, and why can it still hold water?
A permeable grass backing is only one part of the route rainwater has to take. The condition of the surface, the construction beneath it and where water can go all matter. A drainage figure for a grass product alone cannot establish how a completed garden will perform.
Loose debris may collect on top, a low patch may repeatedly hold water, or the base and surrounding ground may need investigation. These are possibilities to discuss, not a diagnosis from a photograph. Changing the top grass without understanding the cause can leave the same problem underneath.
What to record after rain
Take one photograph showing the whole lawn and another showing the affected area. Note when the rain stopped, whether the puddle is shrinking, and whether the same place is affected each time. Include adjacent surfaces and the direction water appears to move. If it was freezing, mention that too.
Tell the installer when the issue started, the approximate age of the lawn and whether there have been changes nearby, such as building work, altered levels or drainage work. A record from more than one rainfall is useful when the problem is intermittent. You do not need to lift the grass to make an initial enquiry.
Checks you can make without disturbing the installation
Clear loose leaves and surface debris gently with equipment appropriate for the grass. Check accessible outlets for obvious leaves or obstructions without lifting covers or entering drains. Look for loose joins, ripples and soft areas, and keep people away from an unstable or slippery patch.
Do not puncture the backing, drive a fork through it or cut extra holes to try to improve drainage. Avoid repeatedly soaking an already flooded area or using more pressure as a substitute for finding the cause. Ask the installer before lifting the surface or attempting a repair, particularly on a recent installation.
When cleaning helps, and when it does not
A clean may help when material on the surface contributes to the problem. It does not change an unsuitable base, repair settlement or provide a missing route for water to leave. Persistent pooling, a recurring dip or water moving towards the building needs a site-specific assessment rather than a promise that brushing will solve it.
We do not set one universal number of minutes for every lawn to drain: rain intensity, the site and surrounding conditions differ. Explain the pattern and duration to the installer. If water is threatening the property, prioritise appropriate help for that situation rather than waiting for routine lawn maintenance.
Repair, replacement or a new installation?
An assessment may identify surface maintenance, local reinstatement or wider base and drainage work. The written quotation should distinguish these tasks and state what will be retained or replaced. Our repair and replacement page explains the starting information and why a patch may differ from older grass.
For a new garden installation, discuss existing puddles at the free site survey. Show us known drains and retained access covers, and provide any available plans. Preparation and drainage must be specified for the site; a new lawn is not automatically a solution to every water problem.
Send the right enquiry to Saygrass
For surface cleaning, send your lawn size, pictures and address through our maintenance enquiry. No installation survey is needed for a cleaning quotation. Tell us about standing water before arranging work so cleaning is not confused with a drainage repair.
For recurring pooling, send photographs and your observations to info@saygrass.co.uk, with the address and installation details. If Saygrass installed the lawn, include your job reference so we can review the agreed specification and any relevant cover.
For other symptoms, see our problems and repairs guide, moss advice and pet odour guide. General advice cannot determine the cause or warranty position for an individual lawn.