Dunoon · Argyll & Bute
Replacement Glass in Dunoon
If a pane in Dunoon is cracked, scratched or not up to current safety rules, our glaziers can measure it and supply a made-to-order replacement.
- PA23
- Guide from £135
Dunoon: double glazing glass replacement
Sealed units are made to measure, so the glazier records the width, height and overall thickness of the existing unit rather than the frame opening. The new unit has to match that thickness to sit correctly in the rebate and take the original beads, otherwise the seal and security of the pane suffer.
Units with Georgian bars or leaded designs can be remade to match the originals. The glazier notes the bar width, colour and layout, or the lead pattern, so the new unit lines up with neighbouring windows. Bars fitted inside the cavity are protected from dirt and need no separate cleaning.
Before replacing glass, the glazier checks the frame for rot, cracks, failed hinges and worn seals. If the frame itself is failing, new glass may not be good value, and the quote will say so, so you can decide between glass only, repairs to the frame or a new window.
The price of replacement glass depends mainly on the size of the pane, the glass type and thickness, whether it is a single pane or sealed unit, special features such as bars or leaded designs, and access. Upper-floor panes that need ladders, towers or extra hands cost more to fit.
What's included
- Survey and measurement of the existing glass or unit
- Removal of the old pane and cleaning of the rebate
- Removal of old glass and packaging from site
- Made-to-measure glass or sealed unit to suit the frame

Local details for Dunoon
- Postcodes covered
- PA23 and the surrounding area, including Gourock, Greenock and Helensburgh
- Coast
- Dunoon is about 1 km from the coast or a tidal estuary, so salt air and wind-driven rain are worth planning for. Near the coast, salt air and wind-driven rain test the seals around replacement glass. Good bedding, correct packers and sound beads matter more, and stainless or coated fixings resist corrosion. Exposed panes may also need thicker glass to cope with wind load.
- Daylight and sun
- In Dunoon the midwinter sun reaches about 11° above the horizon at noon, with roughly 6.7 hours of daylight, rising to about 58° and 17.3 hours in midsummer. On south and west elevations, a solar control or low-E coating changes how much heat and glare new glass lets in. North-facing rooms usually benefit more from glass that keeps heat in while admitting as much daylight as possible.
- Access and setting
- Older rural properties often have timber frames, small panes or leaded lights that need careful measuring and hand-made units. Panes in exposed spots may need thicker glass, and the survey confirms every detail so the fitting visit runs smoothly.
- Rules in Scotland
- Section 4 (Safety) of the Scottish Technical Handbooks covers glazing that people could collide with, such as glass in and beside doors and low-level glazing, where safety glass is needed.
Guide prices in Dunoon
| Typical job | Guide price inc VAT |
|---|---|
| Small double glazed unit, 500 × 700 mm | £135 – £175 |
| Standard unit, 600 × 900 mm | £165 – £205 |
| Large unit, 1200 × 1200 mm | £285 – £365 |
| Toughened unit for a door, 750 × 1800 mm | £345 – £435 |
| Triple glazed unit, 600 × 900 mm | £235 – £305 |
Get a guide price for your size
Section 6 (Energy) of the Scottish Technical Handbooks sets the thermal performance that replacement windows, doors and rooflights should achieve.
Options to choose between
Georgian bar or leaded unit
Decorative bars or lead designs inside or on the glass, matched to existing windows for a consistent look across the property.
Toughened safety glass
Heat-treated glass that breaks into small, relatively blunt pieces, used in doors, low-level panes and other critical locations.
Low-E energy unit
A coated pane and gas-filled cavity that reduce heat loss through the glass compared with older plain float glass units.
Replacement Glass in Dunoon: questions
Should I upgrade to low-E glass when replacing a unit?
If the existing unit is plain float glass, a low-emissivity unit is worth considering because it reduces heat loss through the glass and keeps the inner pane warmer, which can reduce condensation on the room side. It fits the same frame, provided the overall thickness matches. The quote can show standard and low-E options side by side.
What is the difference between toughened and laminated replacement glass?
Toughened glass is heat treated so that, if it breaks, it crumbles into small, relatively blunt pieces and leaves the opening empty. Laminated glass has a plastic interlayer between two sheets that holds the pieces together, so the pane stays in the frame. Both count as safety glass when classified to the relevant standard, and laminated also helps with security and noise.
What guarantee comes with replacement glass?
Manufacturer guarantees apply to new sealed units and glass, and the terms are confirmed in writing. Guarantee terms for the fitting are set out in writing with your quote. Keep the paperwork with your property records, as it identifies the unit and its specification if anything needs to be checked or claimed later.
Can I replace a sealed unit myself?
Single panes in simple frames are sometimes replaced by confident DIYers, but sealed units and safety glass carry risks. A unit that is not packed correctly can make an opening sash drop or crack under load, and handling large panes is hazardous. A glazier also checks whether safety glass is required and that the new glass carries the correct marking.
Do you cover Dunoon for replacement glass?
Yes. We can quote for replacement glass across Dunoon and the surrounding Argyll & Bute area, including postcode districts PA23, and nearby Gourock, Greenock and Helensburgh. Start with your postcode on the quote form and a glazier will arrange a free survey before giving you a written quote.
Get a written quote in Dunoon
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.