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With our windows service we aim to deliver the highest quality products and services at a reasonable price. From our initial visits to quote measure and help you design your windows look through to the final installation you’ll find our team professional, hardworking, friendly and easy to communicate with. We’re widely experienced in private domestic work as well as working alongside building contractors glazing new builds, extensions and renovations.

We install across Bedford Luton and Dunstable using quality UPVC Windows manufactured close to home in Northamptonshire by Emplas, for any enquiries regarding our services please contact us today. 

Our range of window manufacture and installation services includes:
  • Full design support and advice
  • PVCu, glazed and double glazed products
  • A and C rated windows in sculptured and chamfered profiles
  • Vertical sliding windows
  • Expert installation by qualified fitters
  • Huge choice in styles and colours
  • Integrated security options
  • Window decoration and furniture
  • Window repairs and replacements

A casement window is a window attached to its frame by one or more hinges at the side.

Our range of open-out Casement Windows provide increased insulation, security and unbeatable performance. We supply and install throughout Bedford and the areas of Luton and Dunstable.

Comprising top hung vents, side hung casements and fixed lights, all windows are fabricated to BS7950 requirements. This accreditation means that our A Rated Energy Efficient PVC-U double glazed windows and PVC-U triple glazed windows have undergone regular testing to comply with British Standards for Enhanced Security Performance of Windows for Domestic Applications.


We provide a complete range of aluminium windows to suit the needs of any project, whether this be on a commercial or residential property. Our aluminium windows are manufactured to only the highest standards. You can rest assured that our aluminium door range is strong, lightweight and sustainable.

Our window profiles have been designed to meet and exceed the performance standards expected in modern building design, whilst also providing the aesthetic appeal that you are looking for. A range of design features and functions shall enable you to choose the aluminium window system that suits your project, whilst being assured of the quality and performance of the final product.

Hailing from the Georgian era, T&K Sash Windows today are both elegant and practical, combining the classical details of the originals with the latest PVC-U technologies.

For many period properties there's no other sensible choice and for all of us there's the convenience of a window that slides inline, rather than opening in or out.

Our latest range, available across Bedford, Luton and Dunstable, uses specially designed steels to enable window sizes of up to 1600mm by 3000mm. Strong side tracks and cross-bars ensure the window stays square and slides effortlessly every time.

Locks conform to the Police's Secured By Design standard and security's further enhanced by an aluminium security bar that blocks the tracks when engaged to prevent the window being levered. The overall result is a beautiful, sturdy window which, until just a few years ago, would have been priced very much at the premium end of the market. Our latest products change all of that.

Our all-round service includes manufacture which offers all our customers incredible choices in styles and looks; traditional windows, bay, bow, top and side opening with plain, patterned, coloured or even leaded glass brings complete flexibility in design.

Tilt before turn PVCU windows utilise large glass panels to create a flood lit environment that brightens up any home. The windows are easy to clean, thanks to the innovative tilt before turn system we offer across Bedford, Luton and Dunstable.

operation that allows windows to be opened wide and cleaned from the inside of your home. Not only do these unique features make for a cleaner and brighter result, they also make maintaining your windows safer too.

The tilt before turn safety locking system feature ensures that the tilt/ventilation option happens first, making it perfect for ground floor installations and a vital consideration in high-rise applications, providing improved child safety. The turn function allows internal and external cleaning to be undertaken at height and without risk as the window opens inwards.

MJG offer you a huge variety of glass options for your double glazed windows and doors.Keep your home warm, quiet and energy efficient, MJG offer you official Energy Rated Window glass as standard, as is toughened safety glass on all MJG doors and full-height windows. All this is at no extra charge too.You can choose from clear glass or obscure glass, even glass that cleans itself, and to add an inspiring and individual touch to your windows, MJG offer a range of decorative glass such as leaded lights, coloured leaded lights and beveled glass. The choice is yours.

Clear Glass

Our clear glass is ideal for windows, doors and conservatories in your home.

Obscure Glass

Obscure glass is ideal for rooms like bathrooms and doors where you require privacy. We have many designs to choose from with different types of privacy available.

Self-Cleaning Glass

Amazing glass that cleans itself, seeing is believing. Cut down on window cleaning bills.

Decorative Glass

Leaded lights, coloured leaded lights and bevelled glass. The choice is yours.

The latest high performance, maintenance free, PVC-U windows wIll keep you warmer in winter and cooler in summer, making your home feel comfortable all year round. With sky rocketing energy prices, they’ll cut your fuel bills and carbon footprint too.

All MJG windows are Energy “A” Rated as standard, the highest official energy rating in the UK, as endorsed by the British Fenestration Ratings Council. MJG double glazed units are manufactured in the UK using the world leading Pilkington “K” high performance, energy efficient glass. As an approved manufacturer of certified Energy Rated Windows & Doors, MJG has exclusive access to U-Comply, which is audited and approved by Certass, Fensa and the British Standards Institute. This allows MJG to demonstrate thermal performance compliance on every single window and door.

Legislation is in place that states that from October 2010, windows installed into existing dwellings need to comply with Approved Document Part L of the Building Regulations. In order to comply the installed products need to achieve a Window Energy Rating Band of C or above and/or achieve an overall U value of 1.6 W/m2k. The Window Installation Company must be able to demonstrate compliance by having its own Window Energy Rating Certification. MJG's BSI certification (KM 594781) was reawarded in April 2013.

You will find a copy of our recently awarded BSI Certification, which details our full range of energy rated windows, a copy of our BSI window energy rating labels for both our double glazed windows and our triple glazed windows and our Pilkington EnergiKare certification at the following links to our download section.

Our standard double glazed casement window achieves a whole window U Value (Uw) of 1.4 W/m2.K, with a centre pane value of 1.2 W/m2.

Our triple glazed casement window achieves a whole window U Value (Uw) of 1.1 W/m2.K, with a centre pane value of 0.76 W/m2.

MJG work in partnership with Pilkington UK, and as so only use the market leader in sealed unit supply (glazing).

Toughened, anti-sharding glass is fitted where required (such as Bathrooms and Doors), in accordance with BSEN12150.


MJG foiled windows come in the following colours incorporating our standard and special order colours. UPVC windows do not only come in white!

You can choose from our foiled range of woodgrain effect windows or have your windows in any colour (RAL) you like.

Or choose your own colour from the MJG special colour range of UPVC Windows and Doors to perfectly match your home.

The results of testing carried out in April last year, in line with the principles of the British Standard 7950 ‘Windows of Enhanced Security’ Certification, proved that the standard MJG window met with the minimum test requirements of withstanding a 3kN perpendicular load and a 1kN parallel load.

The window went on to withstand a load of 6kN perpendicular to the casement and in the direction of opening with a downward pull of 1kN – double the test standard. This testing confirms that the MJG window is the most secure window on the market today.

Finally our Kitemark License in respect of BS 7412:2007/PAS 24:2012 (Enhanced security performance requirements for window assemblies) was re-issued on 23rd April 2013. As standard Secured by Design approved suited window handles are fitted, cycle tested to 50,000 cycles, and tested to corrosion resistance BSEN1670 Grade 5 (480 hours). Secured by Design is the official Police preferred security standard and it is the most stringent security specification and testing process for windows and doors in the UK. It indicates that certified products comply with the very highest standards in security. MJG carry this certification for our entire range of manufactured window and doors.

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