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EPS insulation · Hertfordshire

EPS external wall insulation in Letchworth Garden City

From Letchworth Garden City to Hitchin, we price EPS external wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. Where eaves are shallow on a house in Letchworth Garden City, grey EPS can sometimes avoid the cost of extending the roofline.

  • Free survey in SG6 and nearby
  • Guide price from £105 per m² + scaffold, 0% VAT
  • Fixed written price before work starts

Free survey in Letchworth Garden City

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Included as standard

  • Light boards mean fewer fixings and a faster install
  • Used on low-rise houses; combustible, so not for taller buildings
  • Thermal conductivity around 0.031–0.038 W/mK depending on grade
  • Grey graphite EPS reaches a given U-value with a thinner board
Close-up of white EPS insulation boards being fixed to a brick wall with orange-capped mechanical fixings

Before we quote in Letchworth Garden City

We also cover Hitchin and Stevenage, close to Letchworth Garden City. Letchworth Garden City sits around 24 miles from Watford. The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.

Much of Hertfordshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.

We compare EPS against mineral wool for each Letchworth Garden City enquiry rather than assuming one board suits every wall.

Postcode district
SG6
County or area
Hertfordshire
Nation
England
Nearby
Hitchin, Stevenage, Luton, Ampthill

Planning and building control in England

For a house in Letchworth Garden City, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.

Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.

When is EPS the right choice?

EPS suits most two-storey houses, bungalows and park homes where the wall is sound and there are no fire-height restrictions. It is a good fit where eaves are shallow, because grey EPS can hit the target with less thickness. On buildings with a storey 11 metres or more above ground, or where the guidance asks for non-combustible materials, mineral wool is used instead.

EPS external wall insulation prices in Letchworth Garden City

EPS external wall insulation guide prices
ItemGuide priceNotes
EPS + silicone render£105–£145 per m²0% VATExcluding scaffold
Grey EPS uplift+£4–£8 per m²0% VATThinner board for the same U-value
Bungalow, full house£6,700–£12,8000% VAT55–75 m² of wall, including scaffold

Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.

From enquiry to finished wall

  1. Enquiry

    Send your postcode and a few details.

  2. Measured survey

    Walls, damp, eaves, cills and services recorded.

  3. Written price

    A fixed price with the specification attached.

  4. Work and handover

    Installed, inspected and documents handed over.

EPS insulation in Letchworth Garden City: questions

Will woodpeckers damage EPS?

It happens occasionally, especially near woodland. Damage is to the render and board surface and is repaired with a mesh patch and colour-matched finish.

How long does EPS last on a wall?

The board itself doesn't degrade when protected by the render system. Service life depends on the render, sealants and detailing, typically 25–30 years or more with maintenance.

Is EPS insulation safe on a house?

EPS is used inside render systems that are fire-tested as a whole. On low-rise houses it is widely used. On taller buildings, or where guidance calls for non-combustible materials, mineral wool systems are specified instead.

Do you cover Letchworth Garden City?

Yes — we survey and quote EPS external wall insulation in Letchworth Garden City (SG6) and nearby Hitchin, Stevenage and Luton, with a fixed written price before any work starts.

EPS insulation in Letchworth Garden City

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