Timber mock sash windows made in Yorkshire

  • Hinged casement window with the look of a sash window
  • Sits flush in the frame to create a streamlined look
  • Egress option that complies with safety regulations
Splay bay window with timber mock sash windows

Handmade timber mock sash windows

What are mock sash windows?

The Patchett Joinery timber mock sash window has the look of a sliding sash window with the functionality of a casement window and comes in standard and egress options.

Timber mock sash windows are a great alternative to sliding sash windows to suit tighter budgets whilst complying with safety regulations. They also look more flush to the frame than sliding sash windows creating a sleek and streamlined look, replicating the original appearance of single-glazed windows in historic buildings. Our mock sash windows are stormproof with a head drip feature to protect the window from rainwater and have maximum thermal and acoustic insulation.

How do mock sash windows work?

Mock sash windows open as a hinged casement window, but with a horn detail to replicate the look of a sash window. The egress version has a bottom panel that opens to provide a means of escape and comply with safety regulations.

Why choose Patchett Joinery mock sash windows?

All of our windows and doors are handmade at our West Yorkshire-based workshop utilising more than 180 years of experience and installed by our skilled team of joiners.

Mock sash windows are a great option if:

  • You want the look of sliding sash windows on a tighter budget.
  • Need an egress window that complies with safety regulations and matches non-egress windows
  • Want extra secure windows with a multi-point locking system and security claw option
  • Need a window with slender profiles that sits flush in the frame, replicating the original look of single-glazed windows in historic or listed buildings

Key Features of our Timber Mock Sash windows

Our timber windows are designed to meet the highest standards of performance, durability, and style. Each window is carefully crafted using top-quality materials and precision engineering to ensure long-lasting satisfaction. Key features include:

Benefits & features of timber mock sash windows

Our timber casement windows are designed to offer unmatched quality, sustainability, and energy efficiency while providing a wide range of customisable options. Here’s a detailed breakdown of the key benefits and features that make our windows stand out:

Quality & Craftsmanship
Our windows are crafted with precision and care, ensuring long-lasting aesthetic appeal and durability. The unique aesthetics of timber, combined with energy efficiency, make these windows an excellent choice for any home.
  • Engineered Timber Construction
    Made from high-quality, engineered timber for exceptional strength and longevity, maintaining its appearance over time.
  • Comprehensive Manufacturer Guarantees
    Extensive guarantees provide peace of mind, ensuring your windows remain high-performing for years.
  • Water-Based Paint System
    Our eco-friendly, water-based paint offers excellent weather resistance and UV protection, keeping your windows vibrant and long-lasting.
Sustainability
Our windows are designed with sustainability in mind, making them an environmentally responsible choice.
  • Sustainably Sourced Timber
    We use FSC®-certified, responsibly sourced timber to ensure an eco-friendly and durable window.
  • Eco-Friendly Paint Process
    Our low-emission, water-based paint system reduces environmental impact without compromising on quality or finish.
Customisation
Tailor your timber flush casement windows to match the architectural style of your home with a wide range of customisation options.
  • Custom Hardware
    Choose from contemporary or traditional hardware, featuring stainless steel hinges, locks, and fixings as standard in a variety of finishes.
  • Traditionally Proportioned Timber Sections
    Authentic timber sections replicate original window designs, ideal for maintaining the character of heritage homes.
  • Custom Shapes & Designs
    Bespoke window shapes and designs are available to complement any architectural requirement.
  • Trickle Vents (Optional)
    Discreetly integrated trickle vents allow for optimal ventilation without detracting from the window’s aesthetic.
  • Astragal Bars (Optional)Available in various sizes, astragal bars add a traditional, elegant finish, seamlessly integrated into the window design.
  • Available in Any RAL Paint Colour
    Choose from a wide range of RAL paint colours to perfectly match your home’s exterior or interior design.
Safety & Security
Our windows are equipped with advanced security features to ensure the safety of your home. Replacement windows are designed to enhance both the aesthetics and security of your home.
  • PAS 24 Security Hardware
    Meets stringent industry standards for home security, keeping your property protected.
  • Friction Hinges (Optional Egress)
    Friction hinges provide smooth operation and can be configured for emergency egress, ensuring safety and functionality.
  • Multipoint Locking
    Secures windows at multiple points for enhanced stability and durability.
  • Security Claw (Optional)
    Adds extra protection against forced entry, offering an additional layer of security.
  • Restrictors (Optional)
    Window restrictors help control the opening, providing added safety, especially for homes with young children.
Energy Efficiency
Our windows are designed to deliver superior energy efficiency, reducing energy costs while maintaining a comfortable living environment. Flush casements offer excellent weather performance due to double weather seals, enhancing energy efficiency.
  • Low ‘U’ Values
    Achieve U-values below building regulation standards, maximizing insulation and energy savings.
  • Double & Triple Glazing
    Available with double or triple glazing options to enhance thermal performance and reduce energy consumption.
  • Double Draught Seals
    Superior weatherproofing with double draught seals, providing excellent insulation and noise reduction.
  • Internal Beading
    Factory-fitted internal beading offers added protection from the elements, improving the window’s lifespan.

1000’s of configuration options

Accoya
This timber is the world’s leading high technology long life wood created from sustainably sourced, fast growing softwood in New Zealand. The timber has an average density of 510kg/m3.
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Red Grandis
Our most commonly used hardwood timber, Red Grandis (Eucalyptus Grandis, to give it its botanical name) is a South American hardwood sourced from sustainable and carefully managed timber plantations.
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Heritage glazed sliding sash window in an old English terraced house
Heritage Glazing
Heritage glazing helps replicate the original look of historic houses without the need for bulky secondary glass and comes 'non-stamped'.
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Double-glazed casement window with black iron hardware
Double Glazing
Double glazing uses two panes of glass filled with insulating gas to make a window more energy-efficient. Double glazing can also reduce noise, condensation and increase security.
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Acoustic Glass
Acoustic Glass option
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Anti – Sun Glass
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Decorative Glass
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Gas
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Leaded Glass
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Low Iron Glass
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Obscure Glass
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Planitherm Total+ and Low Emissivity (Low E) Glass
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Spacer Bars
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Standard Glass
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Toughened and Laminated Glass
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Connoisseur Handle
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From the Anvil teardrop Espag window handle
Teardrop Espag Window Handle
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Offset Reeded Handle
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TWF offset bulbous espag handle
Option 101/D: Offset bulbous Espag Window handle (contemporary)
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Offset Bulbous Reeded Espag Window Handle (contemporary)
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Monkey Tail Window Espag Handle
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Bulb End Espag Window Handle (Contemporary)
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Traditional Window Fittings black iron bulb end handle
Iron Bulbend Espag Window Handle
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Traditional Window Fittings Curve Espag handle
Iron Curve Espag Window Handle
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Traditional Window Fittings Round Ring Espag handle
Iron Round Ring Espag Window Handle
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Offset Bulb End Espag Window Handle (contemporary)
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Offset Spoon End Espag Window Handle (contemporary)
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Using only a water-based painting system which allows timber to “breathe” and adapt to climatic changes, our finishes provide maximum protection against weathering, fungal attack and UV degradation. The water-based application significantly reduces harmful emissions and disposal issues associated with solvent based systems.

Working with our paint partner, Sikkens, we can finish in any RAL colour, stain, or match against all well known paint ranges and brands. With the ability to have different internal and external finishes, your windows and doors can be finished just as you require.

Our factory is audited quarterly to ensure that the finished product has the highest quality paint finish and performance you would expect.

Request your free quote today

Get in touch with our team to get a free no obligation quote.

Our extensive guarantees

At Patchett Joinery, we stand by the exceptional quality of our timber sash windows with comprehensive guarantees

Against preservative failure

50 Year manufacturer guarantee on durability (rot resistance) with Accoya timber (30 years with engineered timber)

Paint

Up to 8 years on opaque, 6 years on translucent. 12 years opaque (Accoya) 10 years translucent (Accoya).

Weather Seals

10-year* manufacturer-backed guarantee on weather seals.

Double-Glazing

10-year* manufacturer-backed guarantee on double-glazed units.

Hardware

5-year* manufacturer-backed guarantee on hardware

Case studies

What our customers have to say

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