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Passivhaus and EnerPHit · Surrey

Passivhaus and EnerPHit windows in Banstead

Homes in Banstead can have Passivhaus and EnerPHit windows supplied and fitted, with surveys arranged across Surrey including SM7.

SM7Postcode district
1.4U-value limit, England (W/m²K)
7h 52mDaylight, 21 Dec
15°Midday sun, 21 Dec
Timber-clad low-energy house with deep-set windows and external shading

The windows and installation detail low-energy builds depend on. Passivhaus is a building standard from the Passive House Institute; EnerPHit is its version for retrofits.

Winter light and glass choice in Banstead

On the shortest day, Banstead gets about 7 h 52 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 Banstead

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

In England, replacement windows must meet 1.4 W/m²K, or a Window Energy Rating of band B or better. 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.

Before ordering: 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

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.

  • 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 Banstead

What is EnerPHit?

The Passive House Institute’s standard for retrofitting existing buildings, with slightly relaxed targets compared with new Passivhaus builds.

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 Banstead?

Yes. We arrange surveys and fitting in Banstead and across Surrey. 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 Banstead?

In England, like-for-like replacements on a house are normally permitted development; flats need permission if the change alters their appearance, Article 4 areas may need permission, and listed buildings need listed building 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 Sutton (3 km), Ewell (4 km), Epsom (4 km) and Coulsdon (5 km).

Other products in Banstead

Passivhaus and EnerPHit in Banstead: 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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