Glass-only replacement · Highlands and Islands
Triple glazed sealed unit replacement in Lerwick
We take enquiries for triple glazed replacement sealed units in Lerwick. Because ZE1 is a remote or island district, surveys and fitting are by arrangement, with travel costs agreed before you commit.

Triple units for frames that can take them; better double units when they cannot. Sealed unit replacement means changing only the glass in an existing frame.
Winter light and glass choice in Lerwick
By midsummer Lerwick has about 18 h 56 min of daylight, but in December only around 5 h 49 min, with the noon sun at about 6°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.
Guide prices in Lerwick
| Guide | Supply and fit, inc VAT |
|---|---|
| Small unit up to about 0.6 m2, frame checked first | £145 – £195 |
| Medium unit about 0.6 to 1.2 m2 | £195 – £245 |
| Large unit about 1.2 to 2 m2 | £295 – £395 |
Guide prices are the same UK-wide; for island and remote districts, travel and access costs are added and shown separately on your quote. Your written quote fixes the price for the specification shown.
Rules for glass-only replacement in Scotland
In Scotland, replacement windows must meet 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.
- Survey by arrangement, then a written quote fixed for the specification
- Glass build-up and whole-window U-value on every quote
- Written handover pack at the end of the job
- Guarantees on frames, units and fitting in writing
Questions from Lerwick
Can I put triple glazing in my existing windows?
Usually not in a way that helps. Most frames take up to about 28 mm units; a triple unit that thin performs about the same as, or worse than, good double glazing. We check your frames before recommending anything.
Will heavier glass damage my hinges?
It can. Triple units are about 50% heavier, so hinges and packers are checked and upgraded where needed.
Do you fit triple glazed replacement sealed units in Lerwick?
By arrangement. Lerwick (ZE1) is a remote or island district, so we confirm availability before booking a survey and show any travel or access costs separately on your quote.
Do I need permission for triple glazed replacement sealed units in Lerwick?
In Scotland, replacement windows on houses are widely permitted development since May 2024, with front elevations expected to match closely; listed buildings need consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
Nearby
Nearest towns on our list: Kirkwall (165 km), Thurso (220 km), Wick (220 km) and Fraserburgh (279 km).
Other products in Lerwick
- 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
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Glass-only replacement in Lerwick: ask about a survey
Written quote fixed for the specification, with travel and access costs shown separately. No building warrant is needed for a straight replacement in Scotland; we fit to the building standards and give you a written handover pack.
