6-8 week supply only lead time

8-10 week supply & installation lead time

10 year warranty, 60 year life expectancy

Designed by you, made to measure by us

97% of our customers would recommend us

Whole window U-values as low as 0.8W/m2K

FSC® certified timber

At Bereco, we only use FSC® 100% wood sourced from FSC® certified forests. By buying Bereco timber windows and doors you are not only helping to promote the growth of forests in Europe, and worldwide, but you’re also helping to protect our planet from deforestation and climate change by not choosing the alternative.

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Bereco timber

A fully renewable natural treasure, timber is the pinnacle of sustainability. Trees not only capture carbon dioxide but when used the timber acts as a carbon store. This is because timber retains its carbon dioxide content, rather than releasing it back into the atmosphere.

By trapping CO2, timber is the perfect building material, particularly in the face of climate change. This is why we only use timber in the manufacture of our wooden windows and doors at Bereco.

We predominantly work with softwood when making our timber windows and doors. Our favourite timber, which is used in the manufacture of all our wooden windows and doors we supply, is softwood European Redwood (Pinus Sylvestris) also known as Scots Pine.

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Workers examining tree logs
Pile of tree logs and one being picked up by an operating machine

Our forest

The more we demand sustainability in our products and services, the need for non-sustainable products decreases which has a greater impact on the planet.

There are more than three trillion trees worldwide but 15 billion of those are being cut down each year. Deforestation is a major concern for us and our planet, and it’s something we take very seriously.

As a population we destroy an area of forest, equivalent to the size of a football field, every two seconds worldwide through illegal logging and forest clearing.

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Peace of mind

The Forest Stewardship Council® or FSC®, is dedicated to the promotion of responsible forest management. Forests are inspected by independent organisations approved only by FSC® and as of 2 May 2017 195,597,731 ha of forest has been certified by FSC® worldwide. The forest in Europe makes up a massive 94 million of those hectares of forest.

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A wooded area of tall skinny trees

Timber for a sustainable future in construction

At Bereco, we strongly believe the only way to create a sustainable future is through the use of timber in construction. Using this material in building and production instead of non-renewable materials like the oil used in the production of uPVC is a fantastic step in the right direction for our planet. These sentiments are mirrored by Andrew Waugh, from Waugh Thisleton Architects, who explains in the video above how timber is the only choice for the future of the UK’s construction industry.

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About European Redwood

European Redwood is an evergreen, coniferous tree that grows to around 30 meters in height and around 1 meter in diameter. Sourced from Northern Europe, at Bereco we love European Redwood for many reasons including:

  • Redwood forests are remarkable carbon storage units
  • Redwood forests are some of the most sustainable in the world. Over 48% of the forest in Europe is FSC® certified, the highest in the world, so you can be assured your wooden windows and doors are being responsibly forested.
  • Redwood moisture uptake compared to other species is relatively low, making the wood less prone to dimensional change and movement – a necessity for timber windows and doors.
  • The natural tannins that give European Redwood its distinctive colouring also give it a natural resistance to insects and decay, so gone are the days of rotting timber windows.
  • Slow growing, we harvest the wood between 90 and 130 years of age. This gives the wood tight growth rings and a high heartwood content helping to prevent cracks and shakes appearing in the timber.
  • European Redwood is lighter than most other species of wood with a density of around 500kgm3, whereas Oak is around 700kgm3 for its density. This makes Redwood an extremely durable and stable wood perfect for wooden windows and doors.

Growing our trees

Foresters harvest timber in accordance with forest management plans. A properly managed forest can take up to 130 years before it’s ready for felling and harvesting. Most well managed forests will follow a management plan like the one below.

  • Years 1-3: Soil preparation and planting of saplings
  • Years 4-5: Regeneration inspection
  • Years 10-20: Thinning
  • Years 20-30: Surveying the young forest
  • Years 30-60: Thinning
  • Years 60-80: Fertilising
  • Years 80-90: Forest inventory and road construction
  • Years 90-130: Harvesting and felling

Protecting our forest

When it comes to the process of harvesting, it’s no longer a case of heading into the forest and cutting down trees with an axe or even a chainsaw. Ask people to tell you how it’s done and your brain will conjure up images just like this but the process has become much more efficient considerate of the nature of the area being felled.

Trees can now be harvested easily with a machine called a feller buncher which allows one person to cut down four trees every minute.

Not only is the feller buncher ideal in terms of economies of scale for felling forest areas but the machine also removes the non-usable limbs from the trunks. By laying these on the forest floor, they protect the all-important soil from being damaged by the machines weight which is invaluable to the ecosystem of the forest.

Trees are not pulled from the roots, instead stumps are left to ensure the vital underground root system stays healthy and guarantees the longevity of the forest. Wildlife corridors and transition areas are always left in areas of harvesting. This allows any wildlife to move easily and discretely through areas of felling migrating to greener pastures in the standing forest.

The FSC's work with the forests in Europe

The forest area in Europe is increasing in size. Today forests cover 45% of Europe’s land area and continue to expand increasing at a rate of 770,000 ha per year.

Timber is not only being harvested from the forests of Europe but at the same time, the replanting of trees is happening. Every year foresters in Poland plant about 500 million new trees on average – that’s 57,000 new trees per hour being planted.

48.2% of the forest in Europe is now FSC® certified. This equates to a massive 94,728,048 ha of forest.

Checking FSC Certification

FSC® not only certify the forest from which the timber is harvested but they also track the timber from the forest through the supply chain. This makes it incredibly clear to the end user that the product or item is a truly sustainable source.

The FSC’s tick tree logo is used to identify an FSC® approved product. When you see their logo you can buy forest products with confidence that you’re helping to ensure our forests continue to flourish.

There are three types of FSC® label:

  • FSC® 100%
  • FSC® Mix
  • FSC® Recycled

All our wooden windows and doors are made from only FSC® 100% timber. This means when you buy timber windows and doors from Bereco you can be certain that the material was harvested with no harm to nature and the environment from which it came.

We can trace our chain of custody all the way back to the forest view our FSC® certificate for peace of mind. To check a supplier’s label is legitimate you can check chain of custody here.

The experts in timber windows and doors

Whether you’re a homeowner working on a renovation project for your home, an architect looking for specific windows and doors, or a trade professional building new homes and properties, we offer a tailored service to help you budget, design, and order bespoke timber windows and doors.


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A really good company to deal with. Very helpful team of people from sales, technical support and delivery. Any time I called, I did not have to wait to speak to the right person and help was immediate. So not only great customer service but also terrific products, well designed and exact fit. Competitively priced.

Graham Roberts

I was very happy with Bereco’s service levels and the products are excellent, very good quality. I would have no hesitation in recommending them to others.

Simon Hazelton

Beautifully constructed windows which do the job perfectly. Handled Covid disruption effectively. Installation went smoothly. All in all a job very well done. Would recommend without reservation.


Visited the showroom last year and impressed with the finish and quality. Just as delighted with the windows and back door that we ordered. They look fabulous.


Our memberships & schemes

As a dedicated manufacturer of quality timber windows and doors, we are part of a number of specialist memberships and schemes. Check out the full list below.

The Anti-Greenwash Charter logo
ASBP logo
BlueSky Certification logo
FSC and Forests For All Forever
Secured by Design certificate
World Land Trust logo
Graphic of FENSA certificate

As seen in...

We’re pleased to announce our brand has featured in several national magazines and publications over the years. Here are some of the most recent places our products have been showcased.

The Times logo
Grand Designs Magazine logo
House and Garden logo
Homebuilding & Renovating logo
Construction Forum Magazine logo
Architects' Journal
Improve logo
Showhouse logo

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