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

Bereco warrants all fully factory finished products for 10 years against manufacturing defects, factory applied coating defects, glazing defects, glazing failure (condensation) and factory fittings/ironmongery failure. Rot and fungal decay for 30 years; and the installation of those products for 6 years where the installation forms part of the contract entered into at the time of order.

Bereco warrants that it will (at the Company’s choice after assessment and within a reasonable time) either repair or replace any products that are faulty, correct any faults with or re-perform the services if deemed not to be in accordance with the applicable building regulations at the time of order placement or refund the full purchase price of any products and services which are found and reported within 5 days of the defect becoming apparent.

Please note: Timescales for the commencement of works under this warranty due to the bespoke nature of the goods and services are subject to the availability of the specialist skilled labour, materials and components required to correct any defects and no claims for delays in the relation to the commencement of these works or their completion will be accepted under this warranty.

To make a claim under this warranty;

  • the warranty claim form on our website must be completed in full and successfully submitted.
  • the following must be provided for each claim;
    1. the order reference number
    2. your name, address and contact information including both your email address and a contact telephone number should we need to contact you to discuss your claim in more detail
    3. a full description of the defect or fault
    4. video and photgraphic evidence clearly identifying the product, how it has been installed and the defect itself
    5. a completed maintenance schedule for the installed life of the products
    6. a valid warranty certificate

The warranties offered on all Bereco factory finished products are based on the following conditions:


  • The warranty must be registered at https://www.bereco.co.uk/register-your-warranty within 6 months of delivery in the case of supply only contracts.
  • The warranty must be registered at https://www.bereco.co.uk/register-your-warranty within 30 days of the completion of the installation in the case of supply and installation contracts.
  • Full and final payment has been made for the purchase.
  • The products are fully factory finished and not basecoat only, unfinished, unassembled or unglazed, as these carry no warranty.
  • Claims made under the warranty are made within 5 days of the defect or fault becoming apparent to prevent further exacerbation and compound damages.
  • The product is fit for its intended use.
  • The product has not been modified in any way that could affect its structural integrity or its performance.
  • Our installation, operation, adjustment & maintenance guidelines have all been followed.
  • The product has not failed due to the fitting of ancillary products such as but not limited to blinds, shutters or security devices.
  • The product has not been damaged during transit on other modes of transport other than the company’s method of transport.
  • The product has not been damaged by accident from an associated incident.
  • The product has not been damaged due to water penetration, either before, during or after installation.
  • Moisture and humidity have been controlled during and post installation as detailed in our fact cards on our website www.bereco.co.uk
  • Window and door combination frames, particularly those spanning one or more storeys, have been assessed by a structural engineer to ensure they are of a suitable construction, satisfactory for in-service performance, long-term durability and in full compliance with current UK Building Regulations and British Standards.

Storage & Installation

  • The products have been stored and handled in accordance with our practical storage and site care guidelines and installed within 14 days of delivery.
  • The products have been installed in an existing dwelling in the case of supply and installation contracts.
  • The products have been installed in accordance with BS8213-4:2016 and the installation instructions at www.bereco.co.uk in the case of supply only contracts.
  • The products have been installed at an address within mainland Great Britain.
  • The products have not been removed from their originally installed location and reinstalled in another building or property.
  • The external face of the products has been installed a minimum of 50mm back from the face of the building.
  • Window and door cills project no more than 30mm from the face of the building.
  • Products have been suitably sealed at the perimeter within 14 days of installation using a low modulus polysulphide-based sealant, approved to ISO 11600-F-25LM.
  • Adequate ventilation was provided at the time of installation to regulate moisture content.
  • Loose cills and cover facings have been fitted in accordance with our instructions and suitably sealed using our recommended products.


  • Bereco after care kits have been used and our maintenance schedule followed and completed.
  • The coating has not failed due to poor maintenance of the building, or by the buildings inadequate design.
  • The coating has not failed due to improper storage or installation.
  • The coating has not been allowed to accumulate dirt and debris leading to excessive mould growth.
  • The coating has not been exposed to excessive pollutants or heat (fire, heating appliances etc).
  • The coating has not been subjected to physical (ladders etc) or chemical (cleaning agents) damage.
  • The coating has not been damaged due to improper washing or cleaning. i.e. through the use of ammonia-based cleaning products.
  • The coating has not been damaged due to the use of adhesives or tapes having been affixed to the products.

Please note: Due to the unpredictable nature of the weather; signs of weathering of the coating i.e. dulling, peeling, cracking and thinning earlier than stated in our maintenance guidelines is beyond the control of Bereco and is not considered a defect under the terms of this warranty.

Glazing, Fixtures and Fittings

  • The glass is suitable for its intended and ongoing use and location in the building.
  • The glazing has not failed due to poor maintenance of the building, or by the buildings inadequate design.
  • Glazing defects i.e. bubbles, blisters, fine scratches and minute particles are categorised in accordance with the GGF quality of vision guidelines.
  • All moveable parts including handles, hinges and mechanisms have been serviced (cleaned, and lubricated) during routine maintenance following the manufacturer’sinstructions.

Please note: Cracks in glazing occurring post-delivery will not be covered by this warranty unless clear evidence of a manufacturing defect or fault can be provided.

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.


Want to get hands on?

Order corner samples of popular products including stain, ironmongery and bars delivered straight to your front door.

Order Product Samples

We replaced the window that our designers and construction team had ordered from Potton as it was far too high and small. I ordered a much bigger window direct from Bereco. They were extremely helpful and kept in touch regularly, helping us by bringing the date forward as we needed the replacement window urgently to allow work to progress.
The window fitted perfectly. It was of a very good quality and I am really pleased I decided to order a bigger one.


At all stages throughout the process of getting information, getting a quotation and dealing with queries, placing the order and organising delivery the staff were very polite, clear and professional.
The product arrived safely and has been admired by local skilled timber craftsmen.

Ian Bloese

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
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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