Frequently Asked Questions

This page contains the questions that our customers most frequently ask. The page is subdivided into five sections covering Accoya Timber, Casement Windows, Sash Windows, Sash Window Upgrades, and Wooden Windows.

Accoya Timber

Yes.  Accoya doors and windows have significantly lower levels of swelling and shrinkage, up to 75% less than other types of timber. This ensures they can be opened and closed throughout the year easily. In addition, Accoya is a sustainable and highly durable timber with a guaranteed lifespan of 50 years above ground and 25 years in-ground or freshwater settings.

Accoya is a type of timber that is produced using sustainable methods. The process involves locking in carbon from the atmosphere, which helps to make the timber more durable and stable. This means that the timber lasts longer and is, therefore, more useful. Additionally, the carbon remains locked in the timber for a longer time, contributing to a more sustainable future.

Accoya wood is a non-toxic and completely biodegradable material.

Accoya wood is a type of modified wood that is manufactured from radiata pine trees that are grown in New Zealand.

Yes. The acetylation process changes the chemical makeup of wood's cell wall, significantly improving its durability, stability, and hardness. Accoya wood can withstand even the most extreme external environments.

Yes, we do spray paint our Accoya products. Additionally, it is also possible to paint Accoya with a brush.

You can use oil- and water-based stains to stain Accoya any colour, even black.

Accoya wood is mostly sold to joinery manufacturers and construction companies.

Radiata pine timber undergoes a modification process (Acetylation) at an ACCYS factory in the Netherlands.  The process produces Accoya, the world's most stable wood.

Radiata pine timber undergoes a modification process (Acetylation) at an ACCYS factory in the Netherlands.  The process produces Accoya, the world's most stable wood.

Rough-sawn timber undergoes a chemical reaction when soaked in acetic anhydride, resulting in modified wood properties.

Acquiring Accoya wood involves purchasing it from timber merchants, who may offer varying prices throughout the year. We recommend contacting your local timber merchants for the most current price information.

Select a paint recommended by ACCYS for Accoya and follow the instructions on the tin.

Accoya wood is naturally beautiful. It is similar in colour to the Radiata Pine, the source species.

Accoya is made from the Radiata Pine.

The species is Pinus Radiata.

Accoya wood begins life as Radiata Pine in sustainably managed forests in New Zealand.

Casement Windows

Casement windows are usually less expensive than sash windows (depending on the size and complexity of the windows).

Casement windows with side-opening sashes (of sufficient size) can provide safe egress from a building.  However, windows located at ground level are the safest option for egress.

Casement windows are secure, and many easily-fitted locking devices are available to increase security.

Casement windows are a good investment, especially when manufactured from long-lasting timber such as Accoya.

Yes, an appropriate contractor can install insect screens on wooden casement windows.

Timber casement windows are an old technology that can sometimes be repaired.  However, repairing old wooden windows can be hazardous, so this work should be left to companies specialising in this area.

Yes, it is possible to manufacture timber casement windows with inward-opening sashes.  But it would be wise to carefully consider the positive and negative consequences before investing in new windows.

Yes, timber casement windows can be installed sideways.  But careful consideration of the building's outward and inward appearances would be required.

Yes, timber windows can be adjusted and eased should it become necessary.

A casement window is attached to a window frame. The window is usually hinged at the side of the frame and opens in an outward direction.  Casement windows can be side-hung or top-hung and are usually manufactured with single or double window panels.

Hinges attach casement windows to window frames.   The hinges allow the casement windows to be opened and closed by hand.

We would advise you to appoint an appropriate contractor to undertake window fitting.

Sash Windows

Yes.  There are many security fasteners available to bolster the traditional sash-window catch.

Timber sash windows can be double-glazed.  We provide sash-window double-glazing and upgrade packages for wooden windows.

We manufacture sash windows to high standards and fit draught excluders as standard.

Yes. We always strive to produce quality products and achieve customer satisfaction.

Providing a meaningful answer without knowing the exact window to compare is impossible. It depends upon the type of window in comparison.  There are many different types and styles of windows available.

Yes.  We provide sash-window upgrade packages for timber windows.

Sash windows can be triple-glazed. However, we manufacture alternative window styles that would be more suitable for triple glazing.

Timber sash windows are an old technology, and repairs are sometimes possible.  However, working with old and brittle glass can be dangerous.  So, we strongly recommend you appoint an appropriately skilled contractor to undertake sash-window repairs.

We recommend you fit sash window locks to prevent external window openings.

Yes, the sashes can be removed from the frame.  But we recommend you appoint an appropriate contractor to undertake the work.

Most sash windows contain two vertical sliding sashes that can be opened at both the top and bottom of the window frame.

A pulley wheel and weight* are fitted within the window frame.  The weight counterbalances the weight of the sliding sash.  A sash cord connects the sliding sash to the weight (via the pulley wheel).  The mechanism makes the sliding sashes easy to move. (*We also fit spiral balances).

Working with old and brittle glass can be dangerous.  So, we strongly recommend you appoint an appropriately skilled contractor to remove your sash windows.

It is impossible to provide a generic answer. The cost depends upon many factors, such as timber type, window size and glass.  We provide free, no-obligation quotations.  Contact Ryedale Joinery by telephone or Email to request a quotation.

The sliding sashes move, so brush painting is possible.  But great care must be taken to ensure the paint does not seal the windows and make sash movement impossible.  We receive many requests to visit properties where well-meaning amateur painters have inadvertently stopped the sash mechanism from working.

Sash window basics have changed little over time.  However, distinct styles are associated with the Georgian, Victorian and Edwardian architectural periods.

The roller is another name for the pulley wheel through which the sash cord runs.  The sash cord connects the sliding sash to the counterbalance weight within the window frame.

We understand that the answer to this question is lost in “the mists of time”.  However, 17th-century examples of sash windows exist - most notably at Ham House in Richmond, London.

Some customers replace sash windows because they are old and rotting.  Others replace windows so they can enjoy the benefits of double-glazing, draft exclusion (etc.).

Sash windows consist of an outer frame and one or two sliding sashes.  The sashes contain glass windowpanes.  Sashes can be opened to provide ventilation.

Sash windows do not contain hinges.  Sash windows can be manufactured with either vertical or horizontal sliding sashes.  Most open vertically and contain two sashes.

Ryedale Joinery manufactures and installs every type of timber sash window.  A quick Google search should identify your area's sash window manufacturers and fitters.

The sash is the moveable part of a window.  It is a frame that holds the glass.

Sash window basics have changed little over time.  However, distinct styles are associated with the Georgian, Victorian and Edwardian architectural periods.

We always recommend Accoya because of its longevity and sustainability.  But many sash windows are manufactured with redwoods.

Sash windows were most probably invented to provide improved and more controllable ventilation.

Sash windows provide good ventilation and security.  They also have an aesthetic appeal.

Sash windows are more expensive because of the time it takes to manufacture and install them, the quantity of timber required, and the cost of the mechanisms for the sliding sashes.

Sash Window Upgrades

We can manufacture and fit a new window frame if you want us to. However, we usually only replace frames when it is necessary to do so. You can rest assured that your existing window frame will be thoroughly checked and repaired as appropriate.

Yes. We replaced the glazing bar positions to maintain the window’s traditional look and style.

We use Accoya® because it is durable and guaranteed for 50 years when used above ground.  Please take time to watch the Accoya video on our website.  It explains why the timber has such long-lasting qualities.

No, upgraded sash windows are much heavier. We usually fit spiral balances to counterbalance the additional weight. However, we can fit heavier lead weights if a customer prefers to retain the traditional mechanism.

Yes, we fit draught excluding staff and parting beads as standard.

Yes, we have a spray-painting facility at our workshop. So, you can have your new sash windows finished in any (RAL) colour you choose.

No, we use our staff. Our approach to quality is based on Ryedale Joinery controlling the process from start to finish.

Wooden Windows

Wooden windows are better than UPVC when the wood used is a sustainable timber such as ACCOYA.  The Accoya wood ensures longevity, durability, superior appearance, and a carbon-neutral impact on the environment over the lifetime of the windows.

We recommend a sustainable timber, such as ACCOYA, for windowsills.  The Accoya wood ensures longevity, durability, superior appearance, and a carbon-neutral impact on the environment over the lifetime of the sills.  Accoya is guaranteed for 50 years when used above ground.

Wooden windows are old technology, and it is sometimes possible to make an effective repair.  However, working with and close to old and brittle glass can be dangerous.  So, we strongly recommend that only experienced and appropriately skilled joinery contractors undertake repairs.

Yes.  Wooden windows require periodic painting as part of their maintenance plan.  One of the advantages of repainting is that the paint colour can be changed to keep the windows and property looking fashionable.

Yes, it is possible to double-glaze wood windows.  The Ryedale Joinery website (www.ryedale-joinery.co.uk) contains much information regarding the double glazing of timber windows.

Wooden windows are old technology, and it is sometimes possible to make an effective repair.  However, working with and close to old and brittle glass can be dangerous.  So, we strongly recommend that only experienced and appropriately skilled joinery contractors undertake repairs.

Wooden windows are old technology, and it is sometimes possible to make an effective repair.  However, working with and close to old and brittle glass can be dangerous.  So, we strongly recommend that only experienced and appropriately skilled joinery contractors undertake repairs.

This question is complex, given the number of window types and permutations.  So, use the Ryedale Joinery website (www.ryedale-joinery.co.uk) to obtain a direct quote for your windows.  You can either use the contact form or telephone the office.

Contact your local paint supplier for advice on the best product based on the paint product previously applied to the window.

The longevity of wooden windows is primarily down to two aspects.  Firstly, the type of timber used to manufacture the windows.  We always recommend Accoya because it is guaranteed for 50 years when used above ground.  Secondly, the amount and quality of maintenance the windows receive.

Many types of wooden windows exist.  Customers usually order windows to suit the age and style of their properties. Listed properties may have limitations on the window types that can be fitted.

Windows manufactured from timber.

We recommend sustainable timber, such as ACCOYA, for windowsills.  The Accoya wood ensures longevity, durability, superior appearance, and a carbon-neutral impact on the environment over the lifetime of the sills.  Accoya is guaranteed for 50 years when used above ground.

We recommend sustainable timber, such as ACCOYA, for window frames.  The Accoya wood ensures longevity, durability, superior appearance, and a carbon-neutral impact on the environment over the lifetime of the frames.  Accoya is guaranteed for 50 years when used above ground.

We recommend a sustainable timber, such as ACCOYA, for casings.  The Accoya wood ensures longevity, durability, superior appearance, and a carbon-neutral impact on the environment over the lifetime of the casings.  Accoya is guaranteed for 50 years when used above ground.

Wooden windows are usually replaced when the timber is old and decaying.  Today, windows are also replaced to upgrade to double-glazing.

No.  Wooden windows have been used for centuries.  However, it is best to order new windows from a quality contractor and to specify a long-lasting timber such as ACCOYA.

Many types of wooden windows exist.  Customers usually order windows to suit the age and style of their properties. Listed properties may have limitations on the window types that can be fitted.