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Passivhaus and EnerPHit · Wales

Passivhaus and EnerPHit windows in Clwyd

From Wrexham to Mold, we arrange Passivhaus and EnerPHit windows for homes across Clwyd, with every quote fixed for the specification shown.

11Towns with local pages
WalesRules applied
1.4U-value limit (W/m²K)
8 to 14 weeksTypical lead time
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.

Guide prices across Clwyd

uPVC low-energy window

medium, deep frame, Uw about 0.8 or better

£1,395 – £1,795inc VAT · £1,160 – £1,495 ex VAT

  • Deep multi-chamber frame
  • Airtightness tapes and insulated fixing
  • Installation details recorded
Typical project

Timber low-energy window

medium, thermally broken

£2,395 – £2,995inc VAT · £1,995 – £2,495 ex VAT

  • Engineered timber, deep section
  • Airtightness tapes and insulated fixing
  • Installation details recorded

Alu-clad timber low-energy window

medium, certified-component systems on request

£2,695 – £3,395inc VAT · £2,245 – £2,830 ex VAT

  • Timber inside, aluminium outside
  • Airtightness tapes and insulated fixing
  • Installation details recorded

Guide prices, supply and fit. The written quote after your survey fixes the price for the specification shown; anything extra is agreed with you first.

Towns in Clwyd

Rules in Wales

The rules for replacement windows in Wales are set by Approved Document L for Wales (2022 edition, with 2024 amendments): 1.4 W/m²K, or a Window Energy Rating of band B or better. As in England, replacement windows are a controlled fitting: a competent person scheme installer self-certifies the work, or building control approves it.

Before ordering: Householder permitted development rules do not cover flats, and councils can remove rights with Article 4 directions. Listed buildings need listed building consent. Check with your council before changing the style or material.

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.

  • Every opening measured, including escape and vent needs
  • Frames rated for the weight of triple glass
  • Old windows removed and taken away
  • Each opening closed up the same day

Questions

Do Passivhaus windows have to be certified?

Not always, but certified components make the certification process simpler. Ask and we will price certified systems.

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 cover all of Clwyd?

We arrange surveys and fitting across Clwyd.

Do I need permission for Passivhaus and EnerPHit windows in Wales?

In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent.

Passivhaus and EnerPHit in nearby areas of Wales

Other products in Clwyd

Passivhaus and EnerPHit across Clwyd

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 Wales.

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