Passivhaus and EnerPHit · Forth Valley
Passivhaus and EnerPHit windows in Alloa
Passivhaus and EnerPHit windows for homes in Alloa: measured on a free survey, made to order and fitted by installation teams working for us across the Forth Valley.
Certified-component systems on request, with data for PHPP. Passivhaus is a building standard from the Passive House Institute; EnerPHit is its version for retrofits.
Winter light and glass choice in Alloa
In Alloa, midday sun in late December sits around 10° high, with roughly 6 h 55 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 Alloa
| 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. Your written quote after the free survey fixes the price for the specification shown.
Rules for Passivhaus and EnerPHit 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.
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.
- 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 Alloa
Do Passivhaus windows have to be certified?
Not always, but certified components make the certification process simpler. Ask and we will price certified systems.
Can you fit to my designer’s details?
Yes. We agree position, fixings and airtightness details with your designer before ordering.
Do you fit Passivhaus and EnerPHit windows in Alloa?
Yes. We arrange surveys and fitting in Alloa and across the Forth Valley. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Do I need permission for Passivhaus and EnerPHit windows in Alloa?
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
We also cover nearby Stirling (9 km), Grangemouth (12 km), Falkirk (13 km) and Auchterarder (21 km).
Other products in Alloa
- 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 Alloa: 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.