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

97% of our customers would recommend us

Double glazed whole window U-values as low as 1.3W/m²K

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Bespoke Timber Sash Windows

Timber sash windows bring unmatched character and charm to Manchester homes, and at Bereco we’ve been crafting them to perfection for decades. Our bespoke wooden sash windows are perfect for properties across Greater Manchester, whether you’re in a leafy suburb like Didsbury, a vibrant neighbourhood such as Chorlton, or a sought-after area like Altrincham.

Every window is made from FSC® 100% or 100% PEFC certified sustainable timber and is designed to deliver period aesthetics alongside energy efficiency and security. With our complete design, manufacturing and installation service, we keep things simple and stress-free.

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external evening shot of a cheshire house with lights on with timber windows

Heritage Charm & Modern Performance

Our premium sash windows bring character and elegance to Manchester properties, respecting traditional aesthetics while meeting today's performance requirements.

Two sash mechanisms

We provide both spiral balance and traditional cord and weight systems, allowing you to select the ideal mechanism that suits your property and preferences.

Authentic period features

Capture the elegance of historic design with our range of window design features including heritage and traditional profiles, glazing bars, sash horns and traditional hardware.

Thermal efficiency

Bereco timber sliding sash windows are available with double or triple glazing. Both options exceed the updated Part L building regulations and deliver impressive U-values.

Acoustic performance

Specify from our Acoustic range for excellent sound insulation, ideal for properties on busy roads or near flight paths.

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.

Timber sliding sash styles for Manchester homes

Modern house with timber sliding sash windows

Sliding Sash Spiral Balance

Spiral Balance is our most popular style of sash window featuring maintenance-free, semi-concealed, in-frame spiral balances. The balances are available in white, brown, black or cream to match your chosen finish, and can be completely concealed to not detract away from the window's traditional style.

Living with a flowery decor and white timber sliding sash windows

Sliding Sash Cords and Weights

Our cords and weights sash windows are the essence of traditional design, featuring lead or steel weights, nylon sash cords with exceptional tensile strength and draught-proof axel pulley wheels. Available with an easy clean facility as well as internal access to the internal and external sash weight pockets.

  • Colour
  • Glazing
  • Hardware
  • Security
  • Technical
  • Colour

    Add a splash of colour

    Every sliding sash window is beautifully factory finished using the most environmentally friendly water-based paint or stain. Choose from any 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 in Manchester.

    Paint & Stain Finishes
    RAL 9016

    RAL 9016

    Linen

    Linen

    Parchment

    Parchment

    BS.10.B.15

    BS.10.B.15

    RAL 9001

    RAL 9001

    Parlour

    Parlour

    RAL 1015

    RAL 1015

    BS.10.C.31

    BS.10.C.31

    BS.10.B.17

    BS.10.B.17

    RAL 7032

    RAL 7032

    RAL 7030

    RAL 7030

    RAL 6019

    RAL 6019

    French Green

    French Green

    RAL 6021

    RAL 6021

    RAL 6005

    RAL 6005

    London Dust

    London Dust

    RAL 5014

    RAL 5014

    RAL 5013

    RAL 5013

    RAL 5022

    RAL 5022

    RAL 3002

    RAL 3002

    RAL 3011

    RAL 3011

    RAL 3005

    RAL 3005

    Smoke

    Smoke

    RAL 7035

    RAL 7035

    RAL 7040

    RAL 7040

    RAL 7037

    RAL 7037

    RAL 7015

    RAL 7015

    RAL 7016

    RAL 7016

    RAL 7024

    RAL 7024

    RAL 9005

    RAL 9005

    RAL Colour

    RAL Colour

    Glazing

    Obscure glazing

    Glazing is an important design element for any project and can make all the difference when creating a feature window or door. A variety of obscure glazing patterns are available with different designs offering varying privacy levels (rated 1-5 with 5 being the highest level) for your Manchester home.

    Delta (Level 5)

    Delta (Level 5)

    Kora (Level 4)

    Kora (Level 4)

    Chinchilla (Level 3)

    Chinchilla (Level 3)

    Kocie (Level 4)

    Kocie (Level 4)

    Cotswold (Level 5)

    Cotswold (Level 5)

    Niagara (Level 5)

    Niagara (Level 5)

    Stippolyte (Level 4)

    Stippolyte (Level 4)

    Frosted (Level 5)

    Frosted (Level 5)

    Hardware

    Handles and locks

    Our timber sash windows come fitted with fitch fasteners, hook lifts and opening restrictors. You can choose from two designs of fitch fasteners known as The Fitch Lock or the Brighton Fasterner, three different designs of the opening restrictor and key operated vent lock, the push and twist vent lock or the angel vent lock.
    Our cords and weights windows also come with round end pulley wheels as well as optional D handles and ring lifts. With single or dual colour options you can even perfectly match the outside and outside of your property.

    Window Ironmongery
    Close up of the hardware on a sliding sash window

    Security

    Safety (and security) first

    Dedicated to delivering security you can rely on, we guarantee our secure sash windows are fitted with the best window hardware which is Secured by Design and Part Q certified, helping to deter unwanted intruders.

    With a range of fitch fasterners, hook lifts and opening restrictors available, you can choose the most suitable product for your needs to guarantee complete peace of mind.

    Black sliding sash windows

    Technical

    Certification

    Secured by Design

    Bluesky certified BS644 General Window Performance

    BS6180:2011 and BS6399-1:1996 compliant

    BlueSky Timber High Performance Window Scheme

    FSC 100% certified timber

    BlueSky PAS24:2016 Enhance Security Windows

    BlueSky Noise Reducing Windows up to 42dB over all window

    UKCA Mark

    Our Certification

    Performance

    UW RANGE: 0.8 – 1.4 W/m²K

    ACOUSTIC RANGE: 29 – 42dB

    G-VALUE RANGE: 0.50 – 0.65

    AIR PERMEABILITY: 600 PA (CLASS 3)

    WATER TIGHTNESS: 250 PA (CLASS 6A)

    WIND LOAD RESISTANCE: 2000 PA (CLASS 5C)

    EXPOSURE CATEGORY: 2000 PA

    AIR LEAKAGE: 0.8M³ per hour

    Bereco Resource Centre

    Made-to-measure windows

    Our timber sash windows are designed entirely to your specifications, with dimensions up to 1.3 metres wide and 2.7 metres in height. Select from any combination of fixed and opening sashes, paired with contemporary, traditional or heritage moulding styles that complement Manchester’s rich architectural character.

    Achieve authentic period aesthetics such as Georgian, cottage, horizontal or marginal bar configurations using our applied glazing bars in 16mm, 25mm and 35mm sizes.

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    Interior view of white timber sliding sash window with astragal bars. A blind covers the top portion of the window and there are several small plants on the windowsill.
    Illustration showing the grain pattern and texture of Redwood
    Illustration showing the grain pattern and texture of Hardwood

    Sustainably sourced timber for lasting quality

    Our sliding sash windows are crafted from premium sustainably sourced timber that’s FSC® 100% or 100% PEFC certified, ensuring every window meets the highest environmental standards.

    We offer redwood (Scots Pine) and hardwood (Dark Red Meranti) and both have the same extensive warranty. The meticulous care and attention we dedicate to timber selection and preparation helps ensure an up to 60+ year lifespan, giving you windows that will grace your Manchester home for generations to come.

     

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    Authentic period details for Manchester homes

    Manchester’s rich architectural heritage spans Victorian terraces, Edwardian villas and Georgian townhouses, making it essential that replacement windows honour these original features. To help you achieve an authentic match for your home, we offer a wide range of traditional styling options.

    From timber-only parting beads to timber staff beads, glazing bars and travel stops, we provide the period details that respect architectural character. We can even incorporate deeper bottom sash rails and seven different sash horn styles, allowing you to faithfully replicate any original sash window design.

    Book a consultation
    A large, white two-story house with a dark slate roof and numerous white timber sash windows. The house features decorative stone detailing around the windows and corners, a large central portico, and bay windows on either side. It is set on a grassy hill with trees in the background under a cloudy sky.
    Interior view of sliding sash windows in bay configuration

    Outstanding insulation & energy efficiency

    Don’t let traditional styling fool you – our timber sliding sash windows offer exceptional thermal performance. Both our double and triple glazed options exceed the latest Part L 2023 building regulations. Our double glazed sash windows achieve U-values starting from 1.3 W/m²K – 7% better than required.

    Our triple glazed alternatives deliver even more impressive U-values starting from 0.8W/m²K – a remarkable 43% improvement on regulatory standards. This superior insulation keeps your Manchester home warm in winter and cool in summer while reducing energy consumption.

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    Acoustic sash windows for peaceful living

    For homeowners on busy streets or near flight paths, our Ambient range offers the only certified noise-reducing timber sash windows available. These specialist acoustic sash windows deliver overall window noise reduction of up to 42dB, while the glazing itself achieves an impressive rating of up to 47dB.

    This makes them ideal for reducing traffic noise, aircraft sound and other urban disturbances, creating a quieter, more peaceful home environment. Whether you’re in the heart of the city centre or on a main road in Didsbury or Chorlton, our acoustic sash windows help you enjoy the tranquillity you deserve.

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    Exterior shot of sliding sash window installed in red brick building. The timber window is painted white and features an astragal bar design
    A window featuring a bird perched gracefully on the sill.

    Sliding Sash Window FAQ's

    How do sliding sash windows operate?

    Sashes slide vertically within the frame. At Bereco we offer cords and weights sliding sash windows, which is a traditional weight and pulley system. We also offer spiral balances which are a tensioned spring mechanism where a coiled spring is discretely concealed inside an encased coloured tube to match the windows finish.

    Do you offer traditional sliding sash windows?

    We offer sash windows in traditional cords and weights or a modern spiral balance method of operation featuring traditional or heritage style mouldings and bars that are perfect for replacement windows or conservation areas.

    What is the difference between spiral balance and cords and weights?

    They are a completely different opening mechanisms. The cords and weights option has wider jambs to hold the lead or steel weight, but there is no difference in the warranty we offer.

    Do you offer a tilt facility on your sash windows?

    At Bereco we don’t offer a tilt facility. This style of window usually comes with unsightly and non-compressing brush seals that can affect weather performance. However, our cords and weights option is available with an easy clean system that allows the bottom sash to open inwards side hung.

    Can I have hardwood cills on softwood frames?

    Even though we can offer this, both our hardwood and redwood timbers have the same warranty and are engineered from defect-free timber that is preservative-treated and fully factory finished. At Bereco every individual timber element of our windows is treated with preservative using the most technologically advanced coating systems from Teknos, which is why we can offer our 30-year warranty against rot and fungal decay.

    Do I have to opt for sash horns?

    No you don’t, it’s completely up to you. But if you do want them we have seven different styles to choose from.

    How long do timber sash windows last?

    Our timber sash windows are built to last, with an up to 60+ year lifespan when properly maintained. This exceptional durability comes from using premium FSC® 100% or 100% PEFC certified sustainable timber, combined with craftsmanship by our skilled team. The quality of the finished job is paramount to us – we use multiple coats of high-quality paint or stain finishes and precision-engineered components to ensure longevity. Unlike uPVC windows which can become brittle over time, timber is a naturally durable material that can be maintained and refinished, making it a sustainable long-term investment that can add to your property value.

    What is the process for ordering new sash windows?

    Our fantastic customer service begins with a free quotation and design consultation. Our team will guide you through the entire process with professionalism and care. We’ll use our live window visualiser to show you different styles, colours and glazing options overlaid on photos of your own home, with real-time pricing. Once you’re happy with the design, our skilled craftsmen manufacture your bespoke windows to exacting standards. We offer competitive prices without compromising on quality, and our 8-10 week lead time includes professional installation.

     

    Want to get hands on?

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

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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.

    ASBP logo
    BlueSky Certification logo
    Secured by Design certificate
    UKCA
    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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