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6-8 weeks current supply only lead time
10 year warranty, 60 year life expectancy
10-12 weeks current supply and installation lead time
Designed by you, made to measure by us
99.5% of our customers would recommend us
Double glazed whole window U-values as low as 1.3W/m²K
Side hung casement windows are one of the most popular choices for UK homeowners. With their classic outward-opening design, these versatile windows suit everything from period cottages to contemporary new builds.
At Bereco, we craft premium side hung casement windows from sustainably sourced timber. Each window is made to measure for your project, offering exceptional quality, security, and energy efficiency that will serve your home for generations.
Book a consultationThere are many reasons to choose classic side hung casement windows.
Side hung casement windows open outward from hinges attached to the top and bottom of the sash, meaning they don't take up any interior space. This makes them ideal for rooms where furniture is placed close to windows, maximising your living space.
Available as flush casements (where the sash sits flush with the frame) or lipped casements (with an overlapping sash for extra weather protection). Both styles suit traditional and contemporary properties.
Engineered laminated timber construction, careful preparation, and factory finishing ensure exceptional durability. With minimal periodic maintenance, our side hung casements will serve your home for over 60 years.
Our double-glazed side hung casements achieve U-values from 1.3 W/m²K – 7% better than building regulations – whilst triple glazing reaches 0.8 W/m²K.
Find the perfect high-quality timber windows and doors for your home renovation, extension or self-build project today.
Discover how our exceptional timber windows and doors can perfectly complement your trade project – whatever it may be.
Colour
Every side hung 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.
Paint & Stain FinishesRAL 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
Glazing is an important consideration for any project, with our side hung 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 and a variety of obscure glazing patterns are 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 makes for a great feature.
Frosted (Level 5)
Stippolyte (Level 4)
Cotswold (Level 5)
Kocie (Level 4)
Chinchilla (Level 3)
Kora (Level 4)
Delta (Level 5)
Ironmongery
Our side hung 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 IronmongeryAntique Brass Bulb End Handle
Black
Bronze Bulb End Handle
Polished Brass Window Handle
Polished Chrome Monkey Tail Handle
Polished Nickel Bulb End Handle
Rumbled Brass
Rumbled Pewter Bulb End Handle
Satin Chrome Window Handle
Satin Nickel
Stainless Steel Round Bar Handle
Security
Feeling safe and secure in your home is essential for your peace of mind, that’s why our timber side hung 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
At Bereco, we offer side hung casement windows in both flush and lipped profiles, each engineered to deliver outstanding energy efficiency and weather protection for your home.
With double glazing that achieves U-values from 1.3 W/m²K (7% better than building regulations) and triple glazing options reaching 0.8 W/m²K (43% better than requirements), our side hung casements keep your home warm, dry, and comfortable year-round. Warm edge spacer bars are fitted as standard, further reducing heat loss and helping to lower your heating costs whilst maintaining superior protection against the British weather.
Get in touchAll of our side hung casement windows are manufactured using certified sustainably sourced engineered laminated timber. We offer both redwood (Scots Pine) and hardwood (Dark Red Meranti), with both options covered by the same comprehensive 10-year warranty.
When comparing the two, our hardwood has a more open grain structure that creates a textured finish, particularly attractive when stained, whilst redwood offers a finer, more even grain. Both timber species are either FSC® 100% or 100% PEFC certified, engineered for exceptional stability and durability, and built to last over 60 years with minimal maintenance.
Book a free home consultationIf you live near a busy road, railway line, or under a flight path, our Ambient range of acoustic side hung casement windows can transform your home environment.
Offering impressive sound reduction ratings from 33dB to 42dB, these specially designed windows dramatically reduce external noise, turning a busy urban street into something resembling a quiet library. This exceptional acoustic performance allows you to enjoy peace and tranquillity inside your home, regardless of what’s happening outside.
Get in touchOur timber windows exceed the new Part L 2023 building regulations and can achieve impressive U-values starting from 1.3 W/m²K – which is 7% 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 moreOur casement windows are naturally renewable, carbon neutral and are 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.
SustainabilitySide hung casement windows are windows with sashes that are hinged at the side and open outward. They’re operated by a handle that controls a multi-point locking system. This classic design has been a feature of British homes for centuries and remains one of the most popular window styles in the UK today.
Flush casement windows have sashes that sit flush with the frame when closed, creating clean, elegant lines ideal for both traditional and contemporary properties. Lipped casement windows (also called storm-proof casements) feature a sash that overlaps the frame, providing additional weather protection. Both styles offer excellent performance, with the choice often coming down to aesthetic preference and property style.
Our side hung casement windows are built to last over 60 years with proper care. The engineered laminated timber construction, factory finishing, and precision manufacturing ensure exceptional durability. With minimal periodic maintenance – typically repainting every 8-10 years depending on exposure – your windows will serve your home for generations.
Our side hung casement windows open outward. This design means they don’t take up interior space when open, making them ideal for rooms where furniture is placed near windows. The outward opening also makes them easier to clean from inside and allows them to catch passing breezes for effective ventilation.
Absolutely. Our Heritage profile flush casement windows are specifically designed for conservation areas and listed buildings. They feature traditional profiles with slimline double glazing that achieves modern U-values of 1.4 W/m²K whilst maintaining a historically appropriate appearance that satisfies conservation requirements.
Order corner samples of popular products including stain, ironmongery and bars delivered straight to your front door.
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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.
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.
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