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Gutter mesh or balloon

Updated: 23 October 2026

Water is coming over the front and you are choosing gutter mesh or balloon. A balloon protects the hole and leaves the trough to fill. A mesh roll tries to keep debris out of the trough. If the blockage is in the pipe, start with an outlet guard. If the trough overflows while the pipe is clear, an outlet guard will not empty it. The [gutter protection comparison](/hub/diy-supplies/gutter-protection) is the table. The saved amazon.co.uk files are from 21 October 2026. There is no lab test. A qualifying purchase can earn a commission at no extra cost to you.

Water is coming over the front and you are choosing gutter mesh or balloon. A balloon protects the hole and leaves the trough to fill. A mesh roll tries to keep debris out of the trough.

Our top picks

DIVCHI DIVCHI 5 m mesh

Best overall

DIVCHI DIVCHI 5 m mesh
6.0/10about £11.99
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LAOJU LAOJU aluminium strainer

Best value

LAOJU LAOJU aluminium strainer
9.0/10about £6.99
View offer
Merriway Merriway 68 mm balloon

Rank 3

Merriway Merriway 68 mm balloon
8.8/10about £5.25
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On this page
  1. 1.What each one actually covers
  2. 2.When a balloon is the right first buy
  3. 3.When a mesh roll is the conversation
  4. 4.Debris on top is a new blockage
  5. 5.A conditional recommendation

What each one actually covers

An outlet guard sits in the hole. In this set only the Merriway balloon prints 68 mm. None of the outlet pieces covers the length of gutter. If the slots clog, you have moved the blockage up by a few centimetres. A mesh roll lies in the trough. The only one kept here is DIVCHI, 5 m by 15 cm with eight stakes, at £11.99. They do not name a 112 mm half-round, and 15 cm is wider than that trough, so you cut and fold.

When a balloon is the right first buy

Choose a balloon or a strainer when leaves pack the outlet or a water butt has stopped filling. Merriway is stated for 68 mm round, not 65 mm square. LAOJU runs up to 7.5 cm and does not print 68 mm. Wedged pieces can blow out. If the symptom is the hole, best gutter guard separates those two. If the trough is full along its length, neither is the first buy. A valley solid with moss is not a balloon job.
DIVCHI DIVCHI 5 m mesh

Testsieger

DIVCHI DIVCHI 5 m mesh
6.0/10about £11.99
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When a mesh roll is the conversation

Open the roll when water comes over the front lip along the length and the trough is holding a mat. DIVCHI is the only kept listing that sits there. The star line is 5.0 from one review, no text is saved, and the score is capped at 60. You choose it because the job is a trough cover, not because of stars. A 15 cm width has to be cut for a gutter about 112 mm wide.

Debris on top is a new blockage

A balloon buried in leaves can stop the pipe and then the gutter. A mesh with moss on it can send water over the front. Approved Document H, for England, sizes gutters for rainfall and roof area. A cover can change how that gutter behaves once debris sits on it. Trade sites suggest washing a balloon about every six to twelve months. That is advice for system parts, not a measured interval on these ASINs. How to fit a gutter guard is the sequence, including when the ladder should not touch the gutter. Both can be fitted on the same gutter.

A conditional recommendation

If the leaves are at the outlet and the rest of the gutter is usable, buy an outlet guard: Merriway when you have measured 68 mm round, LAOJU when you have several holes inside 7.5 cm and will secure the mesh. The roll is the wrong first spend for that symptom. If the trough overflows along its length and the downpipe is clear, DIVCHI is the only roll kept here, with one review and no saved text. If the gutter has pulled off, or the roof may be asbestos cement, neither is the purchase.

Common questions

Should I buy mesh or a balloon?
Buy an outlet guard if the blockage is the downpipe and the trough is usable. Buy a mesh roll if water comes over the front along the length. Here the balloon that states 68 mm is Merriway, and the only trough roll is DIVCHI at £11.99, with one review and no saved text. You choose the roll for the job, not for the stars.
Will a balloon stop the gutter overflowing?
It can stop an overflow that starts because the outlet is packed. It will not stop a trough that is full of needles from end to end, because the balloon does not cover that length. Merriway reviews talk about leaves kept out of the pipe and about slots that need checking. If the lip overflows in ordinary rain with a clear outlet, look at a trough cover instead.
Will mesh keep moss out?
A roll tries to keep debris from landing in the trough. Moss can still mat on top and send water over the front. DIVCHI's listing does not claim it stops moss, and there is no review text to say otherwise. An outlet balloon does not keep moss out of the trough at all. You still clear whichever surface is collecting the growth.
Can I fit both?
Yes. A balloon in the outlet and a roll in the trough do different jobs. There is no combined price in this set. You still measure the hole and cut the 15 cm roll to the gutter. You still clear both after leaf fall. Fitting both does not turn one 5.0 review into evidence that the stakes hold.
Is the 5 m roll in this set enough evidence?
Not as review evidence. DIVCHI is 5.0 from one amazon.co.uk review, with no text saved, and the score is capped at 60. The printed facts are 5 m, 15 cm wide, eight stakes, £11.99, and cut to fit, with no named gutter profile. That shows it is a trough product and that 15 cm is wider than a typical 112 mm half-round. It does not show the roll has been proven against wind or moss.
What if the leaves are only at the outlet?
An outlet guard is the match, and a 5 m roll is extra length you may not need. Measure the opening first. If it is 68 mm round, the listing that prints that size is Merriway. Do not buy the roll because a page called the balloon inferior. The balloon is the weaker choice only when the trough is what overflows.

Related pages

Gutter guard buying guide

Gutter protection

68mm downpipe leaf guard: which size line meets it

Best gutter guard UK: the 68 mm pick and best value

How to fit a gutter guard and when you should stop

Sources

Public UK sources and the amazon.co.uk listings compared on this page. Listings captured 21 October 2026. Updated 23 October 2026.

  1. Approved Document H (retrieved 23 October 2026)
  2. Scottish technical handbook 3.6 (retrieved 23 October 2026)
  3. HSE: working at height (retrieved 23 October 2026)
  4. HSE: ladders (retrieved 23 October 2026)
  5. Consumer Rights Act 2015, sections 9 and 11 (retrieved 23 October 2026)
  6. FloPlast half-round gutter (retrieved 23 October 2026)
  7. HR Wallingford SR620 (retrieved 23 October 2026)
  8. Screwfix FloPlast balloon, 65 mm and 68 mm (retrieved 23 October 2026)