Every window sits in a frame of some description and at Sherriff Stained Glass Specialists we can remove or fit windows to any sort of frame or sub-frame whether they’re made from stone, metal, wood or uPVC.



Sometimes you may find that the stone rebates of windows have been pointed with a Portland cement-based mortar. This can cause problems for the stonework surrounding the window as water can become trapped behind the mortar and make the stone rot and become friable (crumbly).

External steel strengthening bars and metal window frames also have their ends secured into the stonework and as they rust they can expand in their holes and cause the stone to split apart from the pressure of expansion. If conservation of the window is required the bars are removed from the stonework for refurbishment where we will either weld new stainless steel tips or dip the ends in lead to provide a protective barrier between the bar and the stone. As an alternative we can supply new lead-covered steel, stainless steel or phosphor bronze.

For pointing refurbishment we use a lime/aggregate mix where we source an aggregate colour to accurately match the stonework.


At Sherriff Stained Glass Specialists we specialise in refurbishing the metalwork connected with windows. Often the original metal frame can be restored and thus save the expense of getting a new frame custom-made. We use metal-coating paints that are specially designed to provide long-term protection from rust and weathering.



Mullions are the vertical element that forms the division between windows. They can be used decoratively or to provide structural support. Its horizontal counterpart is called a transom. Transoms and mullions are susceptible to rot where they join at the sill. These can often be repaired without the need to purchase or create an entirely new wooden window frame.



Many modern churches and homes use uPVC double glazed windows. Our stained glass window experts can make a stained and leaded glass window and then encapsulate it within a double glazed unit so that you can take advantage of the texture and colour of real stained and leaded glass without compromising on your insulation.

If you have an old or original window that you wish to upgrade to uPVC without compromising on the look or design, we can resize the window so that each stained and leaded glass element is placed inside the double glazed unit for extra protection.

We can also coordinate the design, supply and fit of a brand new uPVC window frame for either a plain or colour coated aluminium window frame all complete with your chosen glass units.




We manufacture high-quality aluminium windows and doors with sleek designs, excellent insulation qualities and long-lasting materials. Aluminium windows and doors are cost effective and ideal for both residences and commercial businesses. We can have them ready within 1 week of order.