So what is it to be...
Timber or PVC-u windows?

A decision that many homeowners face when looking to update their home or start a self-build project.

Weighing up the pros and cons is not always easy either but we hope this recent study by Dr Gillian Menzies, of the Institute for Building and Urban Design at Heriot Watt University will help.

The results provide direct comparisons for a range of timber window products manufactured to Wood Window Alliance (WWA) standards against PVC-u windows in mild, moderate and severe conditions.

We’ve also created an infographic to show the key findings of the report and what the data actually means.

We are really pleased that this report not only demonstrates the clear environmental benefit of choosing timber windows but also the financial benefit. How nice that you can make a decision that is good for the environment and good for the pocket!

In summary the report found that:

  • All timber-based window frames are more environmentally-friendly than PVC-U
  • Timber window products actually have a negative global warming potential (GWP) meaning that over their 60+ year service life they actually reduce the amount of C02e in the atmosphere
  • In all tests timber windows had a service life of at least twice that of PVC-u windows
  • All timber window frames offer better long-term value than PVC-u The full report can be downloaded from the Wood Window Alliance website.
Timber Performance infographic

Timber windows & doors?

Nature’s solution that can last a lifetime.

Whether you’re renovating your home, in the process of a self-build or just looking to the future, you want to source the very best – not least when it comes to products that will help protect your home from the elements.

At Allan Bros, we’ve spent a lifetime (almost 4 lifetime’s if you’re counting!) working with one of nature’s most amazing products, a product that can outlive manufactured uPVC by almost double, a product that not only looks beautiful but performs to a standard that far exceeds British building standards. Timber.

Find out more about the FSC® certified Redwood Timber used by Allan Bros

There are many reasons to choose timber frame windows and doors - select one of the following to learn more:

Long-life timber

Windows with an expected lifespan of over 60 years

Service life & warranties

Studies show that timber windows made to Wood Window Alliance standards, like those made by Allan Bros, have a life expectancy of over 60 years! Not bad when you consider that the average uPVC window is expected to last no longer than 30 years.

High performance timber frame windows aren’t as high maintenance as you might think either. We’re happy to back this up with industry leading warranties and guarantees on all of our products to give you added peace-of-mind.

windows & doors

Using the finest timber from FSC® certified forests


Good for the environment

It might be nice to know that when choosing energy efficient windows and environmentally friendly doors from Allan Bros you are choosing products that:

  • are ‘Carbon Neutral’
  • come from FSC certified forests
  • are naturally renewable

We’re proud of our products and we’re proud of what they stand for. All of the Redwood timber we use is sourced from certified Forest Stewardship Council (FSC) forests in Northern Scandinavia. This means you can be sure the timber used to make your windows and energy efficient doors has come from a sustainable and responsibly managed source. Unlike any other window material, timber can be traced to the original forest in which the wood grew.

Our timber frame windows are also carbon neutral, which means they absorb more CO2 from the atmosphere than they produce. Small things to some, but hugely important to us.

Creating products that have a positive impact for you and your home as well as the environment is fundamental principal of our business and that of our parent company, Inwido Group - Northern Europe’s leading supplier of innovative, environmentally friendly, wood-based windows and doors.

Options and performance

A decision that will make you feel all warm inside

High performance timber windows and doors

Timber is one of nature’s masterpieces. Strong, renewable and a natural insulator, timber offers superb performance and comfort for you and your home.

Designed to meet the demands of 21st century living and manufactured from the highest quality Scandinavian Redwood, our energy efficient windows and eco-friendly timber doors are easy to maintain and offer the highest levels of security and performance.

Allan Bros products will:

Timber Performance
  • enhance the appearance of your property
  • reduce your energy costs
  • add value to your home for years to come

Of course the glazing solution also plays a major role in the efficiency of your windows and glazed doors – which is why we offer a range of options to suit your requirements. All of our solutions surpass current UK Building Regulations and have U-values (a measurement of heat loss) well in excess of present requirements.

As well as our standard energy efficient window units we can provide triple-glazed and argon filled units to fit a more demanding environmental criteria.

Committed to Excellence

Make sure your windows and doors meet the Allan Bros’ standard.

Choosing windows and doors for your home is a big decision and we know you have to be happy with much more than just the product. It has to look right and perform well but most importantly the decision has to feel right. Nobody can influence this, it’s just a gut feel.

Below are just a few reasons we are proud to work for and recommend products from Allan Bros. Biased? Definitely, but who wouldn’t be with our history, environmental policies and products.

Allan Brothers timber frame windows

  • Timber from FSC® certified forests
  • Members of the Wood Window Alliance
  • Highly durable 60 year lifespan
  • Carbon neutral
  • Comprehensive warranties
  • Independently verified performance, security and energy ratings
  • Part of the Inwido Group
  • 200 years of experience and craftsmanship

We hope our energy efficient windows and doors give you the feeling and we are happy to help you at every stage of your journey. From measuring up and pricing to selecting the finishing touches and installing – the Allan Bros team are on hand to offer as much, or as little assistance as you need.

Call our team of experts on 01289 334600 or send us an email with your requirements.

Created by nature, crafted by us...

  • Casement Windows

    This is a high performance stormproof casement window available as side hung or top hung with the option of glazing bars to create classic designs.

    Casement Windows »

  • Sash Windows

    Allan Bros manufactured sash window incorporates modern thinking and technology whilst maintaining traditional styling and values.

    Sash Windows »

  • Patio & French Doors

    Allan Bros range of Patio Doors includes traditional sliding and French opening types. They are supplied fully assembled for quick and accurate installation.

    Patio & French Doors »

  • Exterior Doors

    Our range of energy efficient doors combine tried and proven Scandinavian technology with traditional British styling, giving exceptional performance against the weather and a high level of security.

    Exterior Doors »

Need help?

Our team of experts are here to take away all the hassle. We can help you find the perfect window solution, advising on style and finish and taking care of everything from measuring up to installation.

Tel: 01289 334600


The Allan Bros' promise

After more than 200 years of hand crafting the finest timber windows and doors, you can expect us to be more experienced than most. You can also expect us to have learnt a thing or two about what our clients want, need and demand – and we have. That’s why we offer an unrivalled support service backed up by industry leading warranties and guarantees.