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Passivhaus and EnerPHit · Hertfordshire

Passivhaus and EnerPHit windows in Hoddesdon

If you live in Hoddesdon (EN11) and want Passivhaus and EnerPHit windows, start with a free survey: every opening measured, then a written quote that fixes the price.

EN11Postcode district
1.4U-value limit, England (W/m²K)
7h 47mDaylight, 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 Hoddesdon

By midsummer Hoddesdon has about 16 h 41 min of daylight, but in December only around 7 h 47 min, with the noon sun at about 15°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.

Guide prices in Hoddesdon

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

The rules for replacement windows in England are set by Approved Document L (2021 edition, with 2023 amendments): 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

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.

  • 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 from Hoddesdon

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 Hoddesdon?

Yes. We arrange surveys and fitting in Hoddesdon and across Hertfordshire. 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 Hoddesdon?

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

Nearby towns on our list include Hertford (6 km), Cheshunt (7 km), Waltham Abbey (8 km) and Harlow (9 km).

Other products in Hoddesdon

Passivhaus and EnerPHit in Hoddesdon: 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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