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Double
Double: A classic design with two side-by-side opening sashes.
Call us 01709 838188 or Get in Touch
8-10 weeks current supply only lead time
10 year warranty, 60 year life expectancy
12-14 weeks current supply and installation lead time
Designed by you, made to measure by us
98% of our customers would recommend us
Double glazed whole window U-values as low as 1.2W/m²K
Unique flush timber casement windows
Whether you’re renovating a country cottage or farmhouse, looking for replacement windows for a family home, or planning a modern new build, Bereco flush timber casement windows are sure to enhance the character of your property with styling that is reminiscent of our English and Scottish heritage.
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Charming flush casement designs
Flush timber casement windows are an incredibly popular design which work perfectly for either a contemporary or more traditional property style.
Customisable design
With a range of colour and glazing options, you can make your flush casement windows truly bespoke for your project.
High performing
Our flush casement windows achieve fantastic U-values which mean they’re incredibly energy efficient and can help to reduce your energy consumption.
Built to last a lifetime
Made from robust, sustainable timber and crafted through expert joinery to endure for generations, means the typical lifespan of a flush casement window is 60 years.
Excellent security and safety
Featuring high-securing locking handles, our flush casement windows are incredibly safe and secure offering complete peace of mind.
Homeowner Solutions
Find the perfect high-quality timber windows and doors for your home renovation, extension or self-build project today.
Professional Solutions
Discover how our exceptional timber windows and doors can perfectly complement your trade project – whatever it may be.
Styles
Versatile Styles to Suit Every Vision
Our flush timber casement windows are available in a variety of styles to suit your property and preferences:
Each style can be customised with your choice of glazing, color, and ironmongery to perfectly complement your home's aesthetic. Whether you're looking for a traditional or contemporary look, our range of styles ensures you'll find the perfect fit for your project.
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Double - Double Top Light
Features two main sashes with two smaller top lights above
Double - Single Top Light
Two main sashes with a single top light spanning the width.
Single
A simple, elegant design with one opening sash.
Single Top Light
One main sash with a smaller top light above.
Triple Light
Three sashes side-by-side, offering a wider view and more light.
Colour
Add a splash of colour
Every flush casement window is beautifully factory finished using the most environmentally friendly water-based paint or stain. Choose from RAL Classic, RAL Design, NCS and BS colour charts or match to Farrow & Ball, Earthborn or Fired Earth colour collections. With single or dual colour options you can create the perfect match to the exterior facade and interior decor of the property.
View our Paint & Stain Finishes
RAL 9016
Linen
Parchment
BS.10.B.15
RAL 9001
Parlour
RAL 1015
BS.10.C.31
BS.10.B.17
RAL 7032
RAL 7030
RAL 6019
French Green
RAL 6021
RAL 6005
London Dust
RAL 5014
RAL 5013
RAL 5022
RAL 3002
RAL 3011
RAL 3005
Smoke
RAL 7035
RAL 7040
RAL 7037
RAL 7015
RAL 7016
RAL 7024
RAL 9005
RAL Colour
Glazing
Choice of glazing
Glazing is an important consideration for any project, with our timber flush casement windows you can choose from single glazing, SlimLine (narrow cavity) glazing, double glazing, or triple glazing. Add glazing bars to create traditional and contemporary glazing patterns using our applied 16mm, 25mm and 35mm glazing bars.
We offer acoustic double glazing with a range of impressive sound reduction ratings, from 33dB to 42dB. A variety of obscure glazing patterns are also available offering varying privacy levels (rated 1-5 with 5 being the highest level of obscurity). Our obscure, translucent coloured and opaque painted glass also make a great feature.
Frosted (Level 5)
Stippolyte (Level 4)
Niagara (Level 5)
Cotswold (Level 5)
Kocie (Level 4)
Chinchilla (Level 3)
Kora (Level 4)
Delta (Level 5)
Ironmongery
Handles to match
Our flush casement windows come with multi-point espagnolette locking systems that are handle operated. You can choose from an exclusive range of four handles and decorative stays in both modern to traditional styles in up to 10 different colours. Click the link below to view our full range of window ironmongery.
Window Ironmongery
Antique Brass Bulb End Handle
Antique Black Monkey Tail Handle
Bronze Bulb End Handle
Polished Brass Window Handle
Polished Chrome Monkey Tail Handle
Polished Nickel Bulb End Handle
Rumbled Brass Bulb End Stay
Rumbled Pewter Bulb End Handle
Satin Chrome Window Handle
Satin Nickel Bulb End Stay
Stainless Steel Round Bar Handle
Security
Safety (and security) first
Feeling safe and secure in your home is essential for your peace of mind, that’s why our timber flush casement windows are Secured by Design accredited, and 3rd Party tested and certified to Part Q. They come with modern easy clean or egress friction hinges, secure night vents and child safety restrictors. They utilise high-security multipoint espagnolette locking handles and are internally glazed as standard meaning that the glass cannot be removed from the outside.
Secured by Design
PAS 24
ERA Total Security Guarantee
Performance
Product Specification
We’re pleased to share that our products successfully meet industry standards, are fully accredited and have even received certifications related to their security and performance. Check out the complete range of product specifications below.
Certification
Secured by Design
Bluesky certified BS644 General Window Performance
BlueSky Timber High Performance Window Scheme
FSC® 100% Timber
100% PEFC Origin Timber
BlueSky PAS24:2016 Enhance Security Windows
BlueSky Noise Reducing Windows up to 42dB over all window
UKCA Mark
Performance
UW RANGE: 0.9 – 1.4 W/m²K
ACOUSTIC RANGE: 29 – 42dB
G-VALUE RANGE: 0.50 – 0.65
AIR PERMEABILITY: 600 PA
WATER TIGHTNESS: 400 PA
WIND LOAD RESISTANCE: 2400 PA
EXPOSURE CATEGORY: 2000 Special
AIR LEAKAGE: 0.2M³ per hour
Technical
Technical Specifications
View technical drawingsWood
Softwood - Redwood
Hardwood – Dark Red Meranti
Finish
Teknos Fully Factory Finished Painted
Teknos Fully Factory Finished Stained
Teknos Fully Factory Finished Dual Colour
Bars
16mm Lambs tongue
25mm Ovolo
35mm Ovolo
48mm Ovolo
Lead
Antique Black – 6mm, 9mm or 12mm
Silver – 6mm, 9mm or 12mm
Gold – 6mm or 9mm
Old Gold – 6mm or 9mm
Vents
Trimvent Select Xtra XR16 – White
Trimvent Select Xtra XR16 – Brown
Single Side Hung Sizes
Single Side Hung Width: 300 - 1100mm
Single Side Hung Height: 330 - 1800mm
Single Top Hung Sizes
Width: 400 - 1400mm
Height: 310 - 1300mm
Pair with Flying mullion Sizes
Width: 828 - 2200mm
Height: 300 - 1800mm
Combination Sizes
Width: 700 - 2500mm
Height: 300 - 2500mm
Fixed Light Sizes
Width: 300 - 2500mm
Height: 300 - 2500mm
Cill Extensions
Flush (92mm frame)
25mm (117mm total)
47mm (139mm total)
62mm (154mm total)
87mm (179mm total)
100mm (192mm total)
114mm (206mm total)
125mm (217mm total)
140mm (232mm total)
Totally bespoke flush timber casement windows
Totally bespoke sizes and designs of up to 5 metres and five lights wide using any combination of fixed and opening sashes. Available in traditional or heritage mouldings.
Create an oriel or bay feature window or go all out with curved frames or swept heads (curved plates). Create traditional styles such as horizontal, cottage, Georgian, or marginal bar using our applied 16mm, 25mm and 35mm glazing bars.
Make a statement using lead in traditional designs such as diamond, square and Queen Anne style.
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Redwood or hardwood timber windows
All our products are manufactured using certified sustainably sourced engineered laminated timber. We offer both redwood (Scots Pine) and hardwood (Dark Red Meranti) – both with the same extensive warranty. When comparing the two, our hardwood has a more of an open grain structure meaning it gives more of a textured finish, particularly when stained.
Book a free home consultationTimber windows ideal for conservation areas
Our Heritage profile Flush casement windows are specifically designed for Conservation areas and listed buildings, with options for both single glazing and slimline double glazing. Our 16mm slimline double glazing units are internally glazed and utilise a full drainage and ventilation system. They can achieve a centre pane U-value as low as 1.2W/m²K, and are fully compliant with building regulations. This means you get all the benefits of modern window design while still satisfying conservation requirements.
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High performance timber flush casement windows
Enjoy the sound of silence with noise reduction up to 42dB. Double glazing with warm edge spacers as standard offers U-values starting from 1.2 W/m²K, that are fully compliant with the updated Part L Building Regulations. Our casements are part of BlueSky high-performance window scheme and offer exceptional draught-proofing and weather performance.
Book a free virtual consultationDouble glazed timber flush casements with a 1.2 U-value
Our double glazed timber windows and doors exceed the new Part L 2023 building regulations and can achieve impressive U-values starting from 1.2 W/m²K – which is 15% better than the guidelines. Whereas our triple glazed windows and doors achieve U-values starting from 0.8W/m²K which is 43% better than what’s stipulated in the regulations.
Find out moreChoose flush casement windows that don't cost the earth
Our flush casement windows are naturally renewable, carbon neutral and made from only certified sustainably sourced softwood or hardwood. The care and attention we give to our timber before and during the manufacturing process ensures a 60 year+ life span, 10-year warranty and low maintenance for life.
SustainabilityCasement Window FAQ's
What is the difference between flush and lipped casement?
On flush casement windows the sashes are flush with the frame externally. On a lipped or storm-proof casement window the sash overlaps the frame.
Is there a difference in weather performance between lipped and flush casements?
At Bereco, our timber flush casement windows feature double weather seals that offer excellent weather performance and keep out the draughts. In addition, both our window styles come with the ability to adjust and increase compression on the weather seals.
What hinges do your casement windows come with?
All of our casement windows are fitted with easy clean friction hinges.
Do I need a stay on my casement windows to hold them open?
Do you offer mock sash casement windows?
Yes, we can offer these in both side hung or top hung (regency casement) designs, as well as Tilt & Turn (opening in) window styles.
Do I require Part Q on a casement window?
Currently, Part Q is only applied to new dwellings, so if you are building a new home or converting a non-dwelling (e.g. a barn) into a home then it is a required. If you are renovating a home then it is not a requirement. However, we would certainly recommend that you look for a manufacturer who builds security as standard, like we do. Look for espagnolette locking and 3* high-security cylinders (neighbourhood watch approved) where possible.
Want to get hands on?
Order corner samples of popular products including stain, ironmongery and bars delivered straight to your front door.
What our customers say
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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.
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.
