Artificial Grass Problems: Lifting Edges, Open Joins and Repairs

By Saygrass · Originally published 2022-12-14 · Reviewed on 5 November 2026

A lifted edge, open join or ripple in artificial grass needs a closer look before you add glue, pins or infill. The visible symptom does not always identify the cause. A local fixing problem is a different job from repairing damaged backing or correcting the base underneath.

This guide focuses on installation-related problems around edges, joins and uneven areas. For moss, weeds, pet odours and other care questions, start with our wider artificial grass troubleshooting guide.

Make a loose or raised area safe first

Keep children, pets and other users away from a lifted flap, exposed fixing or raised join until it has been assessed. Do not pull on the grass to see how far the problem extends. Avoid dragging furniture across it or using powered brushing and pressure washing over the loose area.

Take photographs before attempting a repair, especially if the installation is recent. Contact the original installer with the location, when you noticed the issue and whether it changes after rain or use. Check your supplied warranty documents rather than assuming every defect is covered.

Is it the perimeter edge or a join between rolls?

The perimeter edge is where the lawn meets a boundary, paving, planting or another surface. A loose section may need the existing fixing and its support checked. Adding more fixings will not necessarily resolve deteriorated edging, damaged backing or movement underneath. Our edging guide explains the purpose of a secure lawn boundary.

A join or seam is where separate pieces of grass meet. Ask whether it is simply a visible line, a raised overlap, a gap or an actual loss of bond. Those observations help an installer decide what to inspect; they are not a diagnosis from a photograph alone.

A join assessment may include alignment, pile direction, trapped fibres, the backing edges and the condition of the joining tape and bond. Do not cut rows away from an existing lawn just because a general installation guide gives a trimming measurement: the remaining material and condition need checking first.

Why not glue it down immediately?

Adhesive must be compatible with the grass backing, joining materials and supporting surface. Different products have different limits for moisture, temperature, preparation and curing. A product described as suitable for outdoor use is not automatically suitable for every repair or every winter day.

An installer should establish why the edge or seam has opened, prepare the appropriate surfaces and follow the instructions for the actual adhesive being used. There is no universal curing time to promise here. Covering an old failed bond with a new bead of glue can leave the original problem unresolved and make later assessment harder.

A professional repair may involve opening the affected area, preparing or replacing joining material, re-aligning the grass and allowing the specified cure before use. The method depends on what can be retained. Do not use household glue or heat to force a curled section flat.

Ripples, dips and puddles need a different check

A ridge or hollow may involve the fit of the grass, the base or both. Record whether it appeared suddenly, after heavy use or following wet weather. If the problem keeps returning, simply stretching or re-fixing the surface may not address its cause.

Where the lawn is opened for assessment, the installer can check the condition of the supporting layers and whether further work is needed. Reusing a base should be a considered decision, not an automatic assumption. Read our base preparation and compaction advice for related questions to ask.

Can a small section be repaired instead of replacing everything?

An isolated edge, seam or damaged patch may be a candidate for local repair if the surrounding grass and support are suitable. Widespread wear, torn backing or an unsuitable base may call for more extensive work. An assessment should distinguish the immediate repair from any underlying work needed.

A new piece may remain visible against an older lawn because the product, pile direction, colour and wear can differ. Saygrass uses its own supplied grass for grass repairs and replacement; we discuss the likely appearance and agreed scope before you accept a quotation. We do not promise an invisible patch.

Cleaning can help a dirty lawn, but cannot restore melted fibres or rebuild failed groundwork. If the issue is mainly dirt or flattened pile without loose sections, our cleaning and maintenance service may be the appropriate starting point. Maintenance quotations use photographs and approximate lawn size; an installation survey is not needed for a cleaning enquiry.

Does adding sand fix lifting grass?

Do not add sand to disguise a gap or raised edge. Infill is not a substitute for the appropriate joining or perimeter fixing method. Requirements depend on the particular grass system; a blanket instruction that every artificial lawn must be sand-filled is not appropriate.

Saygrass does not use sand infill in its normal residential installations. Follow the instructions supplied for your existing lawn rather than changing an unfamiliar system. Our infill advice explains what to check before adding anything.

What to send for a repair assessment

• A full view showing where the problem sits in the lawn.
• Close-ups of the edge, join, gap or damaged area, without lifting it further.
• The approximate affected length or area, garden address and access details.
• The installation age and product name, if known.
• What happened, when it started and any previous repairs or cleaning attempts.

See our artificial grass repairs and replacement service and current service areas, then email the details to info@saygrass.co.uk. A quotation should identify the repair, any replacement material, base work and waste removal included. An isolated repair cannot be priced accurately from the general installation calculator alone.

If assessment points towards a new lawn or full replacement, book a free Saygrass site survey so we can check the garden and explain the proposed work. The existing surface, access and hidden base condition can affect the final scope.