Passivhaus and EnerPHit · Highlands and Islands
Passivhaus and EnerPHit windows in Stornoway
We take enquiries for Passivhaus and EnerPHit windows in Stornoway. Because HS1 is a remote or island district, surveys and fitting are by arrangement, with travel costs agreed before you commit.

Low-energy triple glazed windows installed to your designer’s details. Passivhaus is a building standard from the Passive House Institute; EnerPHit is its version for retrofits.
Winter light and glass choice in Stornoway
In Stornoway, midday sun in late December sits around 8° high, with roughly 6 h 23 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.
Guide prices in Stornoway
| Guide | Supply and fit, inc VAT |
|---|---|
| uPVC low-energy window medium, deep frame, Uw about 0.8 or better | £1,395 – £1,795 |
| Timber low-energy window medium, thermally broken | £2,395 – £2,995 |
| Alu-clad timber low-energy window medium, certified-component systems on request | £2,695 – £3,395 |
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 Passivhaus and EnerPHit 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
We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.
- 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 Stornoway
Can you fit to my designer’s details?
Yes. We agree position, fixings and airtightness details with your designer before ordering.
Do Passivhaus windows have to be certified?
Not always, but certified components make the certification process simpler. Ask and we will price certified systems.
Do you fit Passivhaus and EnerPHit windows in Stornoway?
By arrangement. Stornoway (HS1) 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 Passivhaus and EnerPHit windows in Stornoway?
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: Dingwall (135 km), Inverness (152 km), Nairn (164 km) and Thurso (172 km).
Other products in Stornoway
- 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
- Period homes and conservation areas
- Flats and apartments
Passivhaus and EnerPHit in Stornoway: 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.
