Timber windows and doors made with traditional skills

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  • Prestige Wooden Windows

    Prestige Wooden Windows

  • Casement Windows

    Casement Windows

  • Conservatory Windows

    Conservatory Windows

  • Sash Windows

    Sash Windows

  • Cottage Windows

    Cottage Windows


GBS offers a range of windows that can be tailored in style to suit individual properties.  Traditional flush casement, standard storm, HP storm, HP flush casement and double hung sliding sash.

All our windows are produced to meet today's efficiency standards. Double glazed with highly efficient Planitherm low E glass coatings along with Argon and Krypton gas fill and warm edge bar.

Furniture in a choice of styles and finishes including fitch fasteners, finger lifts and sash eyes with hook and pole add to the fine finish of these windows. Restrictors and security locks are also fitted for peace of mind and to meet insurance requirements

Factory paint finished in an industry developed low maintenance paint system developed specifically for timber in any colour, dual colour available.

Casement Windows

Casement windows are a popular choice of window that are commonly found in traditional properties such as estate cottages.

Whether plain, cottage bar or Georgian bars, these windows will add charm and character to your home whether for new build or a renovation project.
Combined with efficient double glazing and draught stripping to achieve the best possible performance.

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Casement Window 1
Casement Window 2
Casement Window 3

Sash Windows

Sliding sash windows have been a very familiar sight in various properties for hundreds of years. 

Our method of box construction has not changed since that seen in early joinery workshop manuals. Tongued together and incorporating traditional mouldings, glazing bars and sash horns, it is our aim to continue with this traditional method.

Double draught stripping to sash edges to provide the smooth running of sashes. Operating on new weights, cord and pulleys or on spiral balances.

Sasg 5
Sash 1
Sash 3
Sash 4


Double Ovalo

Double Ovalo

Single Ovalo

Single Ovalo

Lambs Tongue

Lambs Tongue



Planitherm Glass

planitherm glassAll of the timber windows and doors that you’ll find here at GBS Joinery incorporate Planitherm double glazing which offers the latest technology in its completely new generation of high performance, soft coat low E (emissivity) glass. With the inclusion of warm edge spacer bars and argon gas, GBS are able to reduce cold edge bridging on all of your casement, box sash or sliding sash windows.

Planitherm glass will ensure that your windows are more efficient in keeping your home warm & bright; in fact it has been proven to offer THREE TIMES more efficiency than standard double glazing. Thermal glass coating offers our customers the latest advancements, allowing them to reduce household costs by pushing them further towards the recommended energy saving status.

As Europe’s leading energy saving double glazed glass providers, Planitherm is one of the highest quality products available on the window market. By reflecting radiated heat back into the rooms in your home rather than letting it escape, your property will act as a much brighter and welcoming environment for you and your family to enjoy. Both stylish and efficient, Planitherm is able to capture the natural daylight and allow it to pass through the glass.

The Results?

A more comfortable, lighter, brighter, warmer and more energy efficient home that saves you money on your monthly bills which are often costly, especially in the winter.

Thanks to Planitherm’s advanced thermal insulation, you get 3 times more efficient than single glazed windows. Not only that, these windows are at least 25% more efficient than most double glazed windows.

  • Free Solar Heat gain

    Free Solar Heat gain

    PLANITHERM uses advanced coating technology to capture warmth from natural daylight to help heat the home.

  • Thermal Insulation

    Thermal Insulation

    The advanced coating reflects heat back into the room, meaning less energy is needed to heat the home to the desired temperature.

  • Optimal Energy Ratings

    Optimal Energy Ratings

    PLANITHERM brought together with virtually any window frame (including Timber and Accoya) will achieve a Window Energy Rating (WER) of B and an A+ is much easier to reach.

  • Haze & tint free windows

    Haze & tint free windows

    PLANITHERM maximises the amount of natural light into the home, without the haze or tint effects associated with some older double glazed windows.

  • Eliminate Condensation

    Eliminate Condensation

    PLANITHERM helps to virtually eliminate internal condensation and reduce draughts and cold spots in and around windows.

    Double glazed glass for your timber windows, casement windows and box sash windows is available from GBS Joinery today. Call us on 0161 456 0501 for double glazed wooden window and front door fitting across Lancashire, Cheshire, Shropshire and Staffordshire.



All timber used by GBS in the manufacture of it’s products is sourced from importers and merchants that are FSC (Forest Stewardship Council) and PEFC (Programme for the Endorsement of Forest Certification) registered and as such operate a chain of custody from a sustainable source.

Commonly used Softwoods sourced from uses
Redwood Sweden, Finland, Russia and Canada All forms of joinery; some construction; panelling.
Douglas Fir, Columbian Pine Canada & USA Panelling; heavy construction; joinery.
Commonly used Hardwoods sourced from uses
Merranti. S.E. Asia Shop fitting, joinery, furniture, finishing’s, flooring.
Sapele, Iroko, Utile, Idigbo. W Africa Shop fitting, joinery, furniture, finishing’s, flooring.
Oak Europe & USA Shop fitting, joinery, furniture, flooring, construction (Oak).

Timber Quality

Timber being a natural product is prone to defects and as such we endeavour to not only source the best possible quality of timber but to deal with as many of the defects as possible during the manufacturing process.


Factory painting of windows and doors by GBS uses a specialised industry developed and recognised microporous paint system designed specifically for timber windows and doors to provide long lasting protection against weathering and to resist cracking and flaking.

Maintenance and redecoration will be required throughout the life of the product at intervals of between 8 – 10 years for light colours, reduced to 5 – 8 years for dark colours depending on exposure and orientation.
It is advisable to wash down paintwork annually with a mild detergent and soft cloth to prevent the build up of dirt . Do not use any abrasive products.
When re coating use only microporous paints, do not use traditional oil based paints or paints that will seal the surface.

  • Please thank your craftsmen for an outstanding job. Good quality workmanship all around. Regards, Bob Screen.

    B Screen - Northwich, Cheshire
  • Thank you! The quality of the workmanship [For our wooden door replacement] is wonderful, and the fitting was excellent – it fits so perfectly into place, with no damage to the internal architrave or existing step. I can hardly believe it’s a replacement door. Great fitters and excellent communication throughout. I wouldn’t hesitate to recommend you

    Anna, Cheshire.
  • Our new Door is exceptional , making good outside and inside all superb by Ryan who is a great asset to your company, for very hard working, attention to detail, high skill level and is and a really nice likable guy

    Mr P Stevens , Cheshire.
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