Double Glazing with Made-to-Measure uPVC Windows
What good double glazing is made of, and how we specify it for your home.
Double glazing, answered first
Double glazing means two panes of glass held apart by a spacer and sealed into one unit, with the gap filled by still air or an inert gas. We supply it in made-to-measure uPVC windows built on Eurocell frames, with Planibel A low-emissivity glass available in the sealed unit, and fit it with FENSA and CERTASS registered installers. Book a free survey and we measure every opening and quote for your house, not a standard size.
The sealed cavity is what does the work. Heat has to cross two panes and a layer of trapped gas, which slows it far more than a single sheet of glass. A low-e coating on one pane reflects heat back into the room while still letting daylight through. The frame matters just as much: a multi-chamber uPVC profile slows heat through the edges where older windows often leak most.
The parts that separate good units from ordinary ones
Glass: a low-emissivity pane such as Planibel A makes the biggest single difference to warmth. Spacer: warm-edge spacer bars keep the edge of the glass warmer than old aluminium spacers, which reduces the cold line and condensation you sometimes see around the border of a pane. Gas: argon is the usual fill, denser than air and slower to carry heat.
Frame: Eurocell profiles are multi-chambered and BBA certified, and we build all our windows on one system so sashes, frames and beads work together. Fit: a well-made window fitted badly still lets draughts in, so our installers seal and finish the opening properly and the job is certified under Building Regulations.
Styles you can have double glazed
Casement windows in standard or flush sash, tilt and turn windows, bay and bow windows and fixed lights are all available. Colours include white, woodgrain and colour foils, and you can add glazing bars, obscure glass for bathrooms and toughened or laminated glass where safety glass is needed. Because everything is made to measure, awkward and older openings are not a problem.
If you are replacing a mixture of old windows, we look at the whole house at survey and suggest a consistent style so the front elevation reads as one design rather than a patchwork.
Double or triple?
Good double glazing with low-e glass is the right answer for most rooms. Triple glazing adds a third pane and a second cavity, and we recommend it where a window is exposed, noisy or unusually large. You can mix the two in one house. Our triple glazing page explains where the extra pane pays off.
What happens after you enquire
We arrange a free survey at a time that suits you, measure each opening, talk through styles and glass, and send a written quote. Once you are happy, the windows are manufactured to those measurements and a fitting date is booked. On the day, old frames come out, new ones go in, and the openings are sealed and finished. You receive your certificate afterwards. Finance is available through our FCA-authorised arrangement (FCA 1055332).
Our office hours are Monday to Friday 9 to 5 and Saturday 9 to 2, and we cover all of Yorkshire and Lancashire.
Signs your double glazing is due for replacement
Older double glazing does not last for ever. Misting between the panes means the seal has failed and the gas has escaped. Draughts around the sash usually point to worn gaskets or a frame that has moved. Frames that have yellowed, stiff handles and locks that no longer engage properly are all reasons people start looking. If several of these apply across the house, replacing the windows as one project is usually simpler than tackling them one at a time, and it gives you a matching set with modern glass and a Building Regulations certificate for the whole job.
Common questions
- Are your double-glazed windows uPVC?
- Yes. Every window we fit is uPVC on Eurocell frames. We use aluminium only for bi-folding and sliding doors.
- What is Planibel A glass?
- It is a low-emissivity glass with a coating that reflects heat back into the room while letting daylight through, used in the sealed unit.
- Do I get a certificate?
- Yes. Our installers are FENSA and CERTASS registered, so the installation is self-certified under Building Regulations.
- Can you double glaze a bay window?
- Yes. Bay and bow windows are made to measure in uPVC with double or triple glazed units.
