Period homes and conservation areas · Dumfries and Galloway
Triple glazing for period homes and conservation areas in Castle Douglas
We arrange surveys and fitting of period-style triple glazing in Castle Douglas and the DG7 area, with a written, fixed quote after a free survey.

Heritage-style frames and plain advice on consents. In a conservation area, replacing windows on a house is often permitted development if the new windows look similar to the old ones, but councils can remove those rights with an Article 4 direction.
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 |
|---|---|
| Flush casement, woodgrain uPVC medium window | £1,295 – £1,595 |
| Timber flush casement medium window | £2,295 – £2,895 |
| Timber sliding sash medium sash window | £3,395 – £4,195 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for period homes and conservation areas in Scotland
The rules for replacement windows in Scotland are set by the Building Standards Technical Handbook (Domestic), section 6: 1.6 W/m²K. Replacing a window or door, frame and all, does not need a building warrant, but the work must still meet the building standards.
Planning: 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
You will know exactly what you are buying: the quote states the unit build-up, frame, finish, fitting work and how Building Regulations compliance is handled. On fitting day each opening is replaced and closed up before the team moves on.
- Guide prices published, not hidden
- No pressure: the quote is yours to keep
- Frames, glass and fitting in one contract
- Advice on planning and consents before you order
Questions from Castle Douglas
Can I have triple glazing in a conservation area?
Often yes, if the new windows match the look of the old ones and there is no Article 4 direction. Check with your council first.
Will heritage-style frames look chunky with triple glass?
They can if the sections are too slim for a full triple unit. We will show you the frame sizes and, if needed, offer a slim high-performance unit instead.
How long does it take to get period-style triple glazing fitted in Castle Douglas?
After the survey, typical manufacture time is 6 to 10 weeks, and most homes are fitted in 1 to 4 days.
Do you fit period-style triple glazing 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
- Aluminium 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
- Flats and apartments
- Passivhaus and EnerPHit
Period homes and conservation areas 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.
