At Bereco, our mission has and always will be to supply beautifully bespoke timber windows and doors that do not cost the earth. For us it’s no longer just a case of just ‘delivering the difference’ we are striving to make a difference.

Carbon Negative Windows & Doors

Our wooden windows and doors are made from naturally renewable materials that are carbon negative and come from sustainable forests. When you buy our windows and doors you will be able to offset some of the carbon emissions of your own home, reducing its and your carbon footprint.

Lowest embodied carbon

Timber has the lowest embodied carbon of any window material at just 85kgCO²e compared to aluminium at 161kgCO²e

Lower global warming

uPVC windows have a global warming potential of +100kgCO²e. Timber has -60kgCO²e

Carbon saving

Each Bereco window or door bought instead of a uPVC window saves over 252kgCO²e

Counting Carbon

Counting the carbon impact of timber windows.


Are timber windows & doors eco-friendly?

Our Schemes


We make our windows from only FSC® 100% certified timber which is essential in helping in the fight against deforestation.

World Land Trust

We donate £1 for every timber door purchased to World Land Trust, saving acres of rainforest.


Bereco are a proud member of the Alliance For Sustainable Building Products demonstrating our commitment to sustainability.

Bereco production line goes Solar powered
We are excited to announce that we have taken the next steps in reducing carbon emissions with our advanced production facilities now being powered by the sun. The 3687m² installation of solar panels will reduce our carbon emissions by an incredible 580 tonnes each year.
Bereco signs The Anti-Greenwash Charter
In recent years, there has been a significant and negative impact of misleading or false information on the speed of development of the UK’s sustainable built environment. Greenwashing is hindering the dissemination of critical information needed to help us build more sustainably. We have signed the charter to demonstrate and promote a commitment to transparency, accountability, fairness & honesty in our sustainability messaging.

Our Sustainability Story

At Bereco we have always held sustainability at the heart of our business and have remained focused on our environmental responsibilities from our first day of trading. We believe passionately in protecting our planet.

Timeline of our environmental achievements

  • We signed the anti-greenwash charter to demonstrate our commitment to transparency and honesty in our sustainability messaging, and to promote accountability and fairness throughout the industry.
  • We are excited to announce that we have taken the next steps in reducing carbon emissions with our advanced production facilities now being powered by the sun. The 3687m² installation of solar panels will reduce our carbon emissions by an incredible 580 tonnes each year.
  • We were invited to exhibit at the ASBP’s Healthy Buildings Conference & Expo 2019: Plastics in Construction, issues, impacts and alternatives.
  • We joined the Good Homes Alliance and were pleased to be invited to exhibit at their 2019 conference: Delivering Net Zero and Future Homes.
  • We began sponsoring the ASBP’s Plastics in Construction Working Group that is seeking a reduction in the unnecessary use of plastics and encourage the development and adoption of suitable alternative materials.
  • We achieved an 85% reduction in carbon emissions per delivery when importing our products after we changed our method of transportation from road to sea.
  • We saved 153 acres of rainforest with World Land Trust
  • We now power our offices with 100% renewable energy
  • We replaced all plastic paint tubs with metal paint tins in an effort to reduce waste
  • We achieved a bronze level of recognition with the Supply Chain Sustainability School
  • Bereco sales and estimating offices go fully paperless; with all quotations and correspondence now done via email.
  • Bereco supply windows and doors to the Princes Natural House; a show house at the BRE Innovation Park to demonstrate how new houses can meet stringent low carbon targets.
  • We take the decision to discontinue European Oak due to question marks over its FSC chain of custody.
  • The new Bereco Be Inspired brochure is made available for download in our efforts to reduce paper waste.
  • Heriot Watt University undertake life analysis of timber windows on behalf of the WWA proving engineered timber windows have a service life of 60 years and over.
  • We introduce the Bereco Resource Centre; home to all our CAD drawings, drawings can be downloaded in our first step towards becoming a paperless business.
  • We obtain chain of custody from our factory to our head office and now supply windows and doors manufactured from only FSC 100% timber.
  • Water coolers are introduced into our offices to increase staff wellbeing; with water sourced from a local company supplying water from local Yorkshire springs and with the plastic bottles all being reused.
  • We launch our range of triple glazed windows and doors capable of meeting Passivhaus standards with u values as low as 0.7W/m²K.
  • Our windows achieve ‘A’ rated energy efficiency through the BFRC window energy rating scheme.
  • The Heritage range is launched for architecturally sensitive projects; offing u values of 1.3-1.5W/m²K with narrow cavity SlimLine glazing that offer a balance between thermal efficiency and the requirements of conservation.
  • Warm edge spacers are introduced an option for our high performance sealed units for further energy saving possibilities.
  • We become a founding member of the Wood Window Alliance and join forces with the BWF, and Wood for Good in the promotion of timber as a sustainable material for construction.
  • 12 “zed” houses supplied with Bereco windows in Brixton that went on to win Low Energy Building of the Year Award 2006 and was the first commercial development to achieve the coveted BRE Code 6 ‘as built’ certification in 2007.
  • We become self-sufficient dedicated sawmill introduced for complete control of raw materials.
  • We begin to make our own FSC 100% timber pallets from the waste from our dedicated sawmill.
  • Our window achieves acceptance as the only timber window for the One Planet Products buying group, part of the One Planet Living initiative from Bioregional.
  • FSC chain of custody is established from forest to factory.
  • We deliver our first FSC accredited windows and doors.
  • We introduce the use of only fully recyclable timber pallets for our windows and doors to be delivered on.
  • Our first Environmental Policy is established.

Our Commitment

At Bereco we are continually pushing both our business and the products we make to the leading edge in being more sustainable. We have identified 6 core areas key to our business based around the guiding principles of sustainability that we aim to deliver ongoing improvement in.

We commit to continue to use only 100% renewable electricity and carbon neutral gas to power our offices in the UK from 2018 onwards.

We continue to use only 100% renewable energy to power our offices. This commitment means we are lowering our carbon impact by around 3,500 tonnes of CO² which is equivalent to the work of around 1,770 trees capturing and storing the carbon from our atmosphere annually.

We are constantly seeking to improve the energy saving potential of our timber windows and doors over and above the requirements of the building regulations in the UK.

Double glazing has been key to improving the thermal efficiency of windows and doors in our homes in the UK over the last 30 years. Bereco wood windows and doors offer soft coat low ‘e’ argon filled double glazed units as standard. Compared to standard double glazing with air filling just 20m² (the amount in an average 3 bedroom semi home) of Bereco’s soft coat low ‘e’ argon filled double glazing with warm edge spacers can save the equivalent of 1522kW/h or £212 per year on your electricity bills.

We commit to providing transparency on the carbon footprint of both our business operations and of our product.

We are pleased to say that we completed our first Cradle to Gate analysis of our timber sliding sash window and our first Environmental Product Declaration that has given us an insight into the environmental impact and life cycle of our sash window product in the following areas;

  • Global warming potential (CO2e)
  • Non-renewable resource consumption
  • Energy consumption
  • Water consumption
  • Waste reduction

We continue to develop our plans in this area and aim to declare the Carbon Footprint of our products and our business by 2023.

We endeavour to use only natural materials in the manufacture of our windows and doors; and that they seek to reduce the risk of health issues associated with noise and sleep deprivation.

We continue to look to reduce the amount of ‘other materials’ that make up our windows and doors such as vents, weather strips; hinges and ironmongery the objective that we use only materials that can be recycled or reused. In 2018 we set up an environmental working group focussed on the task of eliminating plastic from our products and our supply chain and joined the Alliance for Sustainable Building Products (ASBP) and The Good Homes Alliance (GHA) in an effort to find solutions to this problem.

We continue to be committed to this cause and will review our supply chain annually for any innovation from our supply chain. It is estimated that 54% of the UK population is exposed to day time noise pollution greater than recommended levels, which given the potential health impacts, is concerning. Research is available linking traffic noise to health issues such as cardiovascular disease, heart attack, stroke and dementia, with people living near airports having an ever-greater increased risk of such conditions.

Bereco’s Ambient Range of Timber Windows and Doors launched in October 2018 offers the solution to reducing the health risks associated with noise pollution offering windows and doors with third party certified overall dB ratings of 33dB, 38dB, 41dB and 42dB.

We aim to reduce our non-recyclable waste by 50% through both business and product development by the year 2023.

Our products are delivered on fully recyclable timber pallets made by our very own sawmill from offcuts of our FSC timber. We will endeavour to collect our pallets on which we deliver where possible in an effort to reuse them for future customer deliveries extending their service life before recycling is necessary.

We continue to seek alternative solutions to our packaging and are pleased to be part of the ASBP’s Plastics Working Group who are looking to identify sustainable, cost-effective alternatives to this problem. This year we have eliminated the single use plastic pots that our touch up paint is supplied in eliminating around 2500 plastic pots from going to landfill each year.

We commit to ensuring our chosen haulage company, Truswell Haulage complies with all current legislation and seeks to reduce carbon emissions through everyday practices.

The average truck travelling at a motorway speed of 50 m.p.h. burns 50% of its fuel just pushing air out of the way. It is believed that by further improving vehicle “streamlining” or “air management” a reduction in fuel burn and therefore carbon emissions is achievable. Truswell Haulage operate a Truswell “Traffic Planning and Routing Policy” and a Truswell “Fuel and Tyre management Policy” and continually monitor driver performance and driver training in an effort to reduce fuel burn. The government office for Low Emissions Vehicles and Innovate U.K. has sponsored a major research project which sets the challenge to further improve fuel efficiency by various engineering solutions.

A working group of the best and most knowledgeable companies in this field has been formed, Truswell Haulage are extremely proud to have been chosen to provide the critical driving and vehicle specification data that will be used to explore ways to further reduce fuel consumption and carbon emissions. The rigid vehicles we deliver our windows and doors are to be used as part of this challenge.

We commit to only supply FSC 100% certified timber in our timber windows and doors and to maintain our ongoing FSC chain of custody certification of both our softwood and hardwood, reviewing our supply chain annually.

FSC accredited since 2004 our wooden windows and doors are made from FSC 100% timber. In 2014 we discontinued the supply of European Oak after a review of the supply chain left a question mark over the chain of custody that could not be immediately verified without confidence, we chose to remove Oak from our timber offering. We continue to pioneer and champion the use of only 100% FSC certified timber in the manufacture of our wooden windows and doors.

Our Environmental Policy

As part of our environmental policy, our values do not stop at the product we supply but we consider our environmental impact at all stages from our supply chain down to how our offices are powered.