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Cutting Metal Guttering Methods

We often get asked what the right equipment or method is for cutting metal guttering and downpipes. The answer depends on the metal that you intend cutting or drilling into.

Cutting Galvanised Steel wtith a hacksaw
Cutting Galvanised Steel wtith a hacksaw

Cutting Galvanised Steel

Use a hacksaw. NEVER use a spinning blade as heating the galvanised steel will release toxic fumes.


Cutting Aluminium with a circular/chop saw

Cutting Aluminium

We recommend a fine toothed circular saw – as many teeth as possible to make the cut. Then deburr any rough edges with an Iron File or similar filing tool. Clean the area, and then use touch up paint on any exposed areas to protect from corrosion.

One of our regular installer customers told us:

“If you are going to be making a lot of cuts  –  buy the best – a Hilti Circular or ‘Chop’ Saw – This is critical for visible straight cuts”.

A more basic DIY enthusiast might have a De-Walt version of a circular/chop saw.

When it comes to the blade, Installers use “cold cut” Carbine TIP metal cutting blade. Critical when items are PPC and will be visible, then a little touch up paint is still required. These blades could cost >£100.

Cheaper alternatives are out there but would not last as long, which might not be an issue for a one-time installation project.”

Cutting Cast Iron with an angle grinder

Cutting or drilling into Cast Iron

A steel drill bit for drilling and a diamond cutting blade for an angle grinder for cutting.


Or get in touch with the friendly, knowledgeable team at Rainclear Systems. Call 0800 644 44 26 or email sales@raiclear.co.uk.

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