Aluminium windows · Dumfries and Galloway
Triple glazed aluminium windows in Castle Douglas
We arrange surveys and fitting of triple glazed aluminium windows in Castle Douglas and the DG7 area, with a written, fixed quote after a free survey.
Slim sightlines and a powder-coated finish, with three panes of glass. Triple glazed aluminium windows use thermally broken aluminium frames, where an insulating strip separates the inside and outside of the frame, holding a three-pane sealed unit.
Winter light and glass choice in Castle Douglas
On the shortest day, Castle Douglas gets about 7 h 11 min of daylight and the midday sun reaches only about 12° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.
Guide prices in Castle Douglas
| Guide | Supply and fit, inc VAT |
|---|---|
| Small window about 600 x 1000 mm (bathroom, landing) | £1,095 – £1,395 |
| Medium window about 1200 x 1200 mm (bedroom) | £1,495 – £1,895 |
| Large window about 1800 x 1200 mm (lounge) | £2,295 – £2,795 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for aluminium windows in Scotland
Scotland requires replacement windows to achieve 1.6 W/m²K, which good triple glazing passes comfortably. Replacing a window or door, frame and all, does not need a building warrant, but the work must still meet the building standards.
Before ordering: Since May 2024, replacement windows on houses are widely permitted development, including in many conservation areas, with front elevations expected to match the existing closely; your council tells you if prior notification applies. Flats outside conservation areas generally need permission only if the opening size changes. Listed buildings need listed building consent.
How it works
After the free survey you get a written quote naming the frame system, the glass build-up and the whole-window U-value for every item. Windows are made to order, then fitted, sealed and made good, one opening at a time.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions from Castle Douglas
Are aluminium windows cold?
Not if the frame has a proper thermal break. Modern thermally broken systems with triple glass reach whole-window U-values around 1.0, well inside the Building Regulations limit for replacement windows.
Can aluminium windows take triple glazing?
Yes, and the strength of aluminium suits the extra weight. The system needs a glazing rebate deep enough for the unit, which we check on survey.
How long does it take to get triple glazed aluminium windows fitted in Castle Douglas?
After the survey, typical manufacture time is 5 to 7 weeks, and most homes are fitted in 1 to 4 days.
Do you fit triple glazed aluminium windows in Castle Douglas?
Yes. We arrange surveys and fitting in Castle Douglas and across Dumfries and Galloway. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
We also cover nearby Dumfries (25 km), Lockerbie (42 km), Annan (43 km) and Stranraer (70 km).
Other products in Castle Douglas
- uPVC windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- Composite front doors
- French doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Aluminium windows in Castle Douglas: book your free survey
Written quote fixed for the specification, after a free survey. No building warrant is needed for a straight replacement in Scotland; we fit to the building standards and give you a written handover pack.