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Passivhaus and EnerPHit · Buckinghamshire

Passivhaus and EnerPHit windows in High Wycombe

From the first measure to the handover pack, we handle Passivhaus and EnerPHit windows for homes in High Wycombe and the rest of Buckinghamshire.

HP13Postcode district
1.4U-value limit, England (W/m²K)
7h 48mDaylight, 21 Dec
15°Midday sun, 21 Dec
Timber-clad low-energy house with deep-set windows and external shading

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 High Wycombe

On the shortest day, High Wycombe gets about 7 h 48 min of daylight and the midday sun reaches only about 15° 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 High Wycombe

GuideSupply 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 England

England requires replacement windows to achieve 1.4 W/m²K, or a Window Energy Rating of band B or better, which good triple glazing passes comfortably. Replacement windows are a controlled fitting. A competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council within 30 days; otherwise a building control body approves it.

Planning: Replacing windows on a house is normally permitted development if the new ones look similar. New upper-floor windows in a side wall must be obscure glazed and fixed, or open only above 1.7 m. Flats and maisonettes have no householder permitted development rights, so a change that alters their appearance needs planning permission. An Article 4 direction in a conservation area may mean permission is needed, and listed buildings need listed building consent.

How it works

The surveyor measures every opening, checks ventilation, escape windows and safety-glass zones, and talks through styles. Your written quote lists each item with its glass build-up and U-value, and the price is fixed for that specification.

  • Free survey and 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 High Wycombe

Is triple glazing enough for Passivhaus?

Triple glass is the starting point. The frame, spacers and installation all have to perform too.

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 High Wycombe?

Yes. We arrange surveys and fitting in High Wycombe and across Buckinghamshire. Send your postcode and the windows or doors you want replaced, and we will book a free survey.

How long does it take to get Passivhaus and EnerPHit windows fitted in High Wycombe?

After the survey, typical manufacture time is 8 to 14 weeks, and most homes are fitted in 1 to 4 days.

Nearby

Also near High Wycombe: Amersham (10 km), Maidenhead (12 km), Chesham (13 km) and Chalfont St Peter (14 km).

Other products in High Wycombe

Passivhaus and EnerPHit in High Wycombe: book your free survey

Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in England.

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