Gutter materials compared for Glasgow homes: uPVC, aluminium, cast iron and zinc
Pick the wrong gutter material and you will know about it every winter. Glasgow gets a lot of rain, a lot of moss and the occasional hard frost, and each material copes with that differently.
This is a plain comparison of the four you are most likely to be offered. If you want the full run-down, including profiles and seamless runs, see our guide to gutter types and materials for Glasgow homes.
What to weigh up before choosing
Most people ask about price first. We cannot give you a number in an article, because it depends on how much gutter you have, how high it is, how we reach it and how many downpipes are involved. What we can do is tell you what each material is like to live with.
Four questions sort most choices out:
- What is the house like? A 1930s semi, a sandstone tenement and a new extension each suit different things.
- How much upkeep will you accept? Some materials need painting. Some only need an occasional clean.
- How does it look from the street? Gutters are a big part of your roofline.
- Are you matching what is already there? A single new section in a different colour or shape stands out.
uPVC: the common choice for most houses
This is the plastic gutter you see on most Glasgow houses built or re-guttered in the last few decades. It does not rust, it is light, and it comes with clip-together joints and fittings for corners and outlets. That makes it quick to fit and the usual choice when a budget matters.
The downsides are honest ones. White plastic can discolour over time, it can turn brittle with age and the rubber seals in the joints can dry out and start to drip. It also does not like heavy weight, so a ladder leant on it can crack it.
Best for
Modern houses, extensions, garages and anywhere the gutter is not a feature of the building.
Aluminium: slimmer, stronger and available in colours
Aluminium does not rust and is stronger than plastic. It comes in a range of colours, so black, grey and white runs are all easy to get. It can also be made in one long length on site, which means fewer joints to leak. We cover that in our guide to seamless aluminium gutters.
It dents more easily than cast iron, and it generally costs more than plastic. For a house where you want a neat, modern line and fewer joints, it is a sound choice.
Best for
Longer runs, newer homes, and anyone who wants a colour that suits the windows and doors.
Cast iron: right for older and traditional buildings
Cast iron is what sandstone tenements and many villas were built with. It is heavy, strong and looks right on a period building. Properly looked after, it lasts a very long time.
It is also the one that needs the most care. If the paint wears through, it rusts. Joints can leak, and brackets that have been fixed into soft stone for decades can come loose. Because it is heavy, a failed bracket matters. For tenements in particular, read our guide on restoring or replacing cast-iron gutters.
Best for
Listed or traditional buildings, and any house where the original metal is part of the look.
Zinc: a long-lasting metal with a distinct look
Zinc is less common on ordinary homes, and it is chosen mostly for appearance. It starts a bright grey and weathers to a soft, even tone. It does not need painting, and it suits modern and high-end building work.
The catch is that it needs fitting by someone who knows how to work and join it, so it is not a job to give to just anyone. It also tends to be one of the dearer options.
Best for
Architect-designed houses, feature roofs and projects where the gutter is part of the design.
How Glasgow weather changes the answer
Moss and leaf litter are the real enemy of any gutter here, whatever it is made of. Wet silt and moss hold water against the metal or plastic, and they add weight. A material that suits your house will still fail early if it is never cleared.
That is why we always suggest a regular gutter clean in Glasgow, whatever you choose. Clean gutters last longer in every material, and a cleaner can spot a loose bracket or a weeping joint before it turns into a repair.
So which should you choose?
- Modern house, sensible budget: uPVC.
- Modern house, fewer joints and a colour match: aluminium.
- Sandstone tenement or period house: cast iron, or a like-for-like replacement.
- Design-led project: zinc.
If your current gutters are failing and you are deciding between mending them and starting again, our post on repairing or replacing gutters will help. Otherwise, phone us, tell us what you have, and we will talk you through the options for your house.