Royal Grass® warranty and aftercare
A warranty on artificial grass covers manufacturing defects. It does not cover wear, misuse or installation faults, and understanding which is which saves an argument later.
This guide explains what the two warranties in play actually cover, and the aftercare that keeps a lawn looking as it should.
6 minute read · Updated November 2026
Two warranties, not one
When you buy a lawn from us there are two separate warranties. The manufacturer warrants the product against defects in materials and manufacture for the period shown against that lawn in our catalogue. We warrant our installation workmanship separately.
- Manufacturer warranty: the lawn itself, for the period shown on the product page. Terms are set by Royal Grass and vary between lawns.
- Installation warranty: the work we carry out, for example joins, edging, levels and fixing.
- Neither covers accidental damage, misuse, or work carried out by someone else.
What the manufacturer warranty covers
Product warranties of this kind are written around defects: premature degradation of the yarn, failure of the backing, colour loss beyond normal fading. They are not a guarantee that the lawn will look new in ten years, and normal flattening in heavily used areas is not a defect.
What it does not cover
- Wear from traffic, bicycles, football and dogs.
- Damage from chemicals, hot objects, fireworks or spilled fuel.
- Lifting or opening joins caused by an inadequate sub-base or a flooded garden.
- Work carried out by another contractor.
- Cosmetic flattening of the pile in a walkway or under furniture.
What keeps a warranty valid
Reasonable aftercare and a correctly built base. Manufacturers expect the lawn to be brushed, kept clear of debris and not subjected to substances that damage the yarn. Keep your order confirmation, which records which lawn was supplied and when, because a claim starts with the product and the date.
Brushing
Brush against the pile direction with a stiff garden broom, monthly in normal use and more often in worn areas. Brushing lifts flattened fibres, redistributes infill and stops debris working into the base. It is the single most effective thing you can do.
Infill maintenance
Where a lawn is infilled with silica sand, the infill settles and needs topping up periodically, typically in the first year and then every few years. Low infill shows as a lawn that no longer stands up and feels thin underfoot. Do not overfill: a heavy layer stiffens the pile and holds moisture.
Cleaning that does no harm
- Warm water and a soft brush for most marks.
- A mild pet-safe cleaner for organic spills, rinsed through.
- No bleach, no solvents, no pressure washing close to the backing.
- Blot oil and paint immediately; do not spread them with a cloth.
Common causes of damage
The damage we are asked about most is not mysterious: a join lifting where the base was uneven, an edge pulling away where there was no fixing, scorch marks from a barbecue or a discarded firework, and flattened pile under a paddling pool left out for weeks. All of them are preventable, and most are repairable with a spare offcut.
Where to go next
Questions answered in this guide
Related buying guides
Maintenance
The full aftercare routine, season by season.
Royal Grass product comparison
Warranty periods for every lawn.
Artificial grass accessories
Brushes, infill and repair materials.
