Finlock Gutter Problems

Whatever problems you are suffering with your Finlock Concrete Gutters, you are not alone. Every year we replace concrete guttering for a thousand homes in the UK all of whom have the standard concrete gutter issues – damp in the bedrooms – external leaks down the wall – water in the cavity – bowed windows and a whole host of other issues.

Fear not, we can help you solve these problems.

Why choose us?

Cutting away concrete guttering and replacing it with UPVC is a specialist job and also not an easy one so it is important to choose a company that is qualified and experienced.

Our highly trained fitters have been working in this industry for over 20 years and our attention to detail is second to none.

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Concrete guttering problems

Finlock Concrete Gutters

Concrete guttering can often be found on properties built between 1950’s – late 1960’s and were designed as a cost-effective solution. Sadly as the years have gone by these gutters have caused more and more issues for homeowners.

A lot of homeowners have tried repairing the concrete guttering by having it lined with various things like bitumen, aluminium liners and rubber, unfortunately, this will not solve the issue of cold bridging and the only way to permanently remove any issues caused by these gutters is via a full replacement system like the one we offer.

Finlock Guttering Solutions

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concrete guttering replacement Before & after
Finlock guttering replacement Before & after (1)
concrete guttering replacement Before & after



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What our customers say

Mr Gates – Liverpool

Michaels team worked so hard in the bad weather and did a great job at tidying up after themselves, would recommend

Mr & Mrs Jenkins – Surrey

We chose the concrete gutter specialists over other companies because of their friendly approach and fair quote, there was no hard sell and the workmen were lovely and did a good job

Mrs Herald – Bournemouth

Great Job!

John Speed – London

Excellent work and a tidy job done, very pleased. Mr Speed

Peterson Family

We had 4 quotes and we chose CGS although they were not the cheapest they were not the most expensive either and they seemed to know what they were talking about. The work has been done to a high standard and our leaks have stopped

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Find our how we can help

    Concrete Gutter Problems

    Damp Inside/ Outside:

    This is the most common problem and is untreatable long term without cutting the gutters away and replacing them with uPVC

    Bowed Windows:

    The concrete guttering on a standard semi-detached home can equate to almost a tonne in weight and quite often there is no soldier course between the gutters and your windows, this overhanging weight can cause your window frames to bow.


    Almost every customer we carry out work for has had their concrete guttering lined between 2-4 times over the past 20 years, each time this “quick fix” method has led to further issues and also a reduction in how much water these gutters can effectively hold.

    Concrete Gutter FAQs

    Concrete gutters are also known as Finlock gutters. They are found on homes that were built between 1950s-1970s.

    Finlock gutters were used on houses built between 1950s-1970s. They were used as an alternative to other materials that were scarce because of the war effort.

    Finlock gutters can present many problems. Cold/thermal bridging, damp and mould, puddling, sagging and even destruction of the interior of your home. The main issue with concrete gutters is that they are porous, and water can cause them to break down over time. Not ideal for a gutter.

    You have a few options. You can either choose to line your gutters. Lining Finlock gutters makes them more water-resistant and can help minimise some of the issues with concrete guttering. Repairing the problems is only a short-term fix, it will not last forever, and a lot of the issues with concrete guttering will return until the gutters are entirely replaced.

    The most recommended option is to replace the Finlock gutters entirely. Full removal is the best way to eliminate most of the issues that concrete guttering brings. We can install modern, fit-for-purpose uPVC gutters that will be hassle-free and cost you much less in the long run to maintain.


    Replacing your concrete gutters with another, more trustworthy material such as uPVC can stop damp from occurring due to the concrete gutters. However, if you have mould from your Finlock gutters and then choose to get them replaced, it will take some time for the mould to go away.

    We can help. We would always recommend a Finlock gutter replacement rather than lining. If you are experiencing issues, please contact us and we can look at what is best for you.