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Passivhaus and EnerPHit · Ayrshire

Passivhaus and EnerPHit windows in Irvine

Passivhaus and EnerPHit windows for homes in Irvine: measured on a free survey, made to order and fitted by installation teams working for us across Ayrshire.

KA12Postcode district
1.6U-value limit, Scotland (W/m²K)
7h 02mDaylight, 21 Dec
11°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 Irvine

Winter days in Irvine are short: about 7 h 02 min of daylight on 21 December, with the sun peaking near 11°. That low angle reaches deep into south-facing rooms, so we match the glass to each elevation rather than using one spec for the whole house.

Guide prices in Irvine

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 Scotland

The rules for replacement windows in Scotland are set by the Building Standards Technical Handbook (Domestic), section 6: 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

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.

  • 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 Irvine

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.

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

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

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

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 Kilwinning (5 km), Troon (8 km), Kilmarnock (10 km) and Ayr (18 km).

Other products in Irvine

Passivhaus and EnerPHit in Irvine: 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.

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