8-10 week supply & installation lead time

10 year warranty, 60 year life expectancy

Designed by you, made to measure by us

98% of our customers would recommend us

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

High quality and long lasting timber windows and doors

At Bereco, the production facility is the key to ensuring our wooden windows and doors last a lifetime. We completely understand that what happens in the factory will determine both the quality and longevity of the wooden windows and doors we will then deliver.

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How we manufacture our timber windows and doors

1. Timber at the ready

When placing your order with Bereco we start by cutting the timber from the sawmill to length for each window size and configuration ordered. Each cut section is then marked with a series of numbers that denotes the window or door position on the production schedule of manufacture. Computers are used at all manufacturing positions with order documentation uploaded so paperwork is not needed at each and every stage of production.

2. Pinpoint accuracy

A heavy investment in IT and equipment ensures absolute precision in the manufacture of your timber windows and doors. The factory is one of the most advanced in Europe with laser-guided cutting machines cutting to a tolerance of 0.001 mm – so when you order a 1215mm wide wooden sash window that is the size you can be sure to receive. All tooling is regularly scanned by a state-of-the-art machine to ensure accuracy is maintained day in and day out.

3. Making frame sections and assembly

An automated CNC machine, the tenon joint machine, now takes the lead based on the product chosen it selects the correct tenon profile for the job profiling each section ready for assembly. Tenons are glued and mechanically pressed creating strengthened joints ready for the timber’s first stage of the factory coating treatment process.

4. Preservative treatment

Assembled frames now take their first trip through our integrated coating booth. At this stage the frames are getting their initial timber preservative treatment, designed to penetrate deep into the timber, it offers protection against rot, fungal decay and stabilises the timber against twist and warp.

5. Sanding and base coating

The sanding process is often an area where shortcuts are made. At our factory, there are three stages of sanding to ensure the smoothest finish on all our wooden windows and doors. Stage one is the after preservative treatment, stage two is after basecoat application and stage three follows the first topcoat application. The majority of the sanding work is done by hand by trained joiners working as an integrated part of our production line.

6. Factory finishing

Our factory has two automated coating booths and drying chambers. This is where the final layer of top coat is applied which provides our timber window and doors with their final weather resistant coating. The coating and hanging out to dry system ensures film thicknesses are consistent across all parts of the product so you don’t get unsightly paint build up in the corners. Manual checking is also carried out on every order to guarantee perfect paint thicknesses so homeowners can be assured the paint will last.

7. Fitting of hardware

All completed frames that have received their final coat of paint or stain will then have protective strips of ply fitted under the cills and sole selections to prevent any damages to finish in transit to hardware fitting. At this location locking systems, hinges, balances for sliding sash windows and restriction devices are installed.

8. Glazing and bars

In maintaining the complete supply chain, we’re also proud to boast that in addition to our sawmill we have a fully operational glass plant at our production facility. The glass plant manufactures from sheet glass double glazed units, while state-of-the-art pressure gas filling machines create bespoke sealed units – with or without spacer bars – just for our wooden windows and doors. This ensure we can offer a full 10-year warranty against sealed unit failure. FSC® 100% timber bars are then hand applied to the surface of the glass and silicone sealed to endure weather performance.

9. Quality checking

Once the glass and fittings are complete, the frames are then cleaned from top to bottom. They then undergo the scrutiny of our quality checking team which is solely dedicated to checking both the operation and quality of each and every wooden window and door that leaves our production facility – their high standards are clear to see.

10. Packaging and shipment

When your completed Bereco timber windows and doors are ready for shipment, we securely palletise them on our FSC® 100% recyclable timber pallets ready to be delivered straight to you.

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

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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
Good Homes Alliance 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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