The short answer
The ongoing costs of artificial grass are low but not zero. Day to day, the main running cost is your time: brushing the pile to keep blades upright, removing leaves and debris, and the occasional rinse to clean off dust or pet mess. You may also need to top up the sand infill over the years and pay for the odd repair to a seam or burn. The larger future cost is replacement — artificial grass typically lasts around 10 to 20 years before the pile flattens or fades and it needs renewing, though a sound existing base can often be reused. Compared with a real lawn, there is no mowing, feeding, watering or weed-and-feed cost.
Artificial grass is marketed as low-maintenance, and it largely is — but it is not maintenance-free. Knowing the small recurring costs helps you plan realistically.
Artificial grass running costs
- Routine costMostly your time — brushing and clearing debris
- CleaningOccasional rinse; pet-area rinsing
- Infill top-upOccasional sand replenishment
- RepairsRare — seams, burns, pet damage
- Replacement~Every 10–20 years
Routine upkeep
Most of the ongoing cost of artificial grass is time rather than cash, and the routine is light:
- Brushing: periodically brushing the pile with a stiff broom or a power brush keeps the blades upright, especially in high-traffic areas where the grass flattens. This is the main regular task.
- Clearing debris: removing leaves, twigs and other organic matter stops it breaking down on the surface and feeding moss or weeds. A leaf blower or rake does the job.
- Rinsing: an occasional hose-down clears dust, pollen and light dirt, and keeps the lawn looking fresh. In pet areas, regular rinsing helps prevent odour.
- Weed checks: a quality membrane stops most weeds, but windblown seeds can occasionally root in the infill at the surface and are easily pulled or treated.
None of this needs special equipment beyond a broom and a hose, and the cash cost is minimal — a far cry from the petrol, feed and water a real lawn consumes.
Occasional and longer-term costs
Beyond routine upkeep, there are some less frequent costs to factor in over the lawn's life:
- Sand infill top-up: the kiln-dried sand brushed into the pile can compact or migrate over the years, and topping it up keeps the blades supported and the lawn hard-wearing.
- Repairs: seams can occasionally lift, and the grass can be damaged by a barbecue, fire pit or cigarette burn (it melts rather than burns) or by determined pets. Patching or re-gluing is usually a small, infrequent cost.
- Deep cleaning: households with pets or heavy use may occasionally use a specialist artificial-grass cleaner or disinfectant, a modest consumable cost.
- Moss treatment: in shaded, damp UK gardens moss can settle on the surface over time, and an occasional treatment and brush keeps it at bay.
The replacement cost and the comparison with a real lawn
The biggest future cost is replacement. Artificial grass does not last indefinitely — over roughly 10 to 20 years the pile flattens, the colour can fade and the backing eventually ages, at which point the grass needs renewing. The cost of replacement is lower than the original installation if the existing sub-base is still sound, because the expensive groundwork can often be reused; you mainly pay for new grass, fresh infill and the labour to lift the old and lay the new.
Set against a real lawn, the running-cost picture is favourable:
- No mowing: no petrol, electricity or mower upkeep, and no weekly time cost through the growing season.
- No feeding or weed-and-feed: none of the periodic lawn-care products a natural lawn needs.
- Little watering: only the occasional rinse, rather than watering through dry spells.
- No reseeding: no patching bare or worn areas.
The trade-off is clear: artificial grass swaps the steady, mostly-time cost of a real lawn for a very low routine cost now and a single larger replacement cost years down the line. For households that dislike or cannot manage regular lawn care, that exchange is often worthwhile; for keen gardeners who enjoy a natural lawn, the calculation looks different.
A realistic maintenance routine through the year
It helps to see how the small ongoing tasks fall across a typical UK year, because the upkeep is seasonal rather than constant. Spreading the light work across the seasons keeps an artificial lawn looking fresh without it ever becoming a chore:
- Spring: a thorough brush to lift the pile after winter, clear any moss that has settled in damp, shaded spots, and a rinse to wash off winter grime. Check the edges are still secure and the drainage holes are clear.
- Summer: the main task is keeping it cool and clean — an occasional rinse to clear dust and pollen, and a hose-down on hot days if children or pets use it. Pet areas benefit from more frequent rinsing in warm weather to prevent odour.
- Autumn: the busiest season for upkeep, as fallen leaves need regular clearing with a rake or leaf blower so they do not break down on the surface and feed moss. Keeping on top of leaf fall is the single most useful autumn habit.
- Winter: very little is needed. Snow and frost can be left to melt naturally rather than scraped, which risks damaging the pile, and the lawn stays usable and mud-free through wet weather.
Across the whole year, this amounts to a brush and rinse now and then, regular leaf clearing in autumn, and a little extra attention to pet areas in summer — a fraction of the time a natural lawn demands. Set against that light routine are the occasional costs already covered: a sand top-up every few years, the rare repair, and the eventual replacement. Planning for these as part of the picture, rather than expecting a truly maintenance-free surface, gives a realistic view of what an artificial lawn costs to keep over its life.
Frequently asked questions
Does artificial grass need any maintenance at all?
Yes, but only light upkeep. The main tasks are brushing the pile to keep it upright, clearing leaves and debris, and an occasional rinse. Pet areas benefit from more regular rinsing. There is no mowing, feeding or watering, so the running cost is mostly a little of your time rather than cash.
How often do you need to top up the sand infill?
There is no fixed schedule. The kiln-dried sand can compact or move over the years, particularly in busy areas, so an occasional top-up keeps the blades supported and the lawn hard-wearing. Many lawns go several years between top-ups; a flattening pile in high-traffic spots is the usual sign it is needed.
What happens when artificial grass wears out?
After around 10 to 20 years the pile flattens and the colour can fade, and the grass needs replacing. Replacement is cheaper than the first installation if the existing sub-base is still level and free-draining, because that groundwork can be reused. You then mainly pay for new grass, fresh infill and the labour to swap it over.
Sources & further reading
- Which? — artificial grass pros and cons
- Royal Horticultural Society — lawns
- Checkatrade — artificial grass cost guide
Figures on this page are typical UK ranges drawn from published cost guides and are intended as guidance, not a quotation.