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Frequently Asked Questions

We provide a 10 year warranty on all window parts. That includes frames, sashes, glass and hardware.

Authentic 1.5

Heritage 1.5

Vintage 1.5

As standard, backed up by UKCA declaration, improved U values are available.

Masterframe windows are generally ‘A’ rated, however this is dependent on the glass chosen and some would be ‘B’ rated or NPD (No Performance Declared)

No we only focus on producing the best, most authentic sash windows possible.

Secured by Design is an ACPO (Association of Chief Police Officers (UK)) Third party endorsement scheme.  The entire window would have to firstly be tested and pass the PAS24 (Publicly Available Specification) standard in order to achieve SDB approval.

– The window frame has more re-enforcement.

– Upgraded rider blocks are used

– A secure locking claw cam catch comes as standard with all windows

Minimum is 345 wide x 750 high

Maximum – this depends on the configuration of the window, range and glass.  If you have your correct dimensions to hand we can confirm if it will be possible for us to manufacture it.

On Authentic windows, if it’s over 916mm wide, then the window will have two cam catches.

On Heritage, Vintage and NEOsash windows, if it’s over 926 mm wide then the window will have two cam catches. 

If the window is less than 926 mm wide then one cam catch is supplied unless there is a central bar in which case there will be two.

Yes, however this is size and weight dependent.

Delivery is free on the UK mainland

Yes, in fact they are our speciality and we offer a range of different shapes including swept heads, arches, Gothic arches and London Style which is square internally and arched externally.

All of our bay posts are non-load bearing but they are hollow which allows load bearing solutions to be used in conjunction

The key difference is:

– The London Sash has an arch infill panel on the glass only, giving the impression of an arch.

– A London Sash and Frame has an additional arched frame section on the external head of the window to replicate the look of an actual arched head. (Only available on Vintage and Heritage)

The closest matches are:

Cream White Woodgrain RAL 9001/Renolit PX 47848 – 10100

White Woodgrain: BS 00E55

White Gloss: RAL 9016

Deep – 105 mm

Large – 63 mm

20 mm

Masterframe can colour match to all leading brand paint brands such as Farrow & Ball, RAL colours, British Standard colours (BS) and Dulux.

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