Loft InsulationInstallers

Rafter insulation in Hertfordshire

We cover Hertfordshire for rafter insulation. It starts with a free survey and a fixed written quote.

We work in Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City and everywhere in between.

Guide price £1,645 to £2,595 Hertfordshire
Insulation boards fitted between roof rafters

Where we work around Hertfordshire

We work across the Hertfordshire council area.

Postcodes starting AL, CM, EN, HP, SG and WD are all inside our area.

CouncilsHertfordshire
Postcode areasAL, CM, EN, HP, SG, WD
Towns listed18

What is rafter insulation?

Because the whole roof slope, the gables and the party walls now have to be insulated, this costs much more than insulating the floor and saves less heat for the money. It earns its place when you need a warm loft. More about rafter insulation.

  • Insulated plasterboard lining where specified
  • Build-up designed for your type of roof underlay
  • Rigid insulation between the rafters, joints taped

Why book with us in Hertfordshire

Plain-English advice

We explain what we find in plain English, and say so when nothing needs doing.

No pressure selling

You get everything in writing and decide in your own time.

Photos of the finished loft

You see the work done without climbing the ladder.

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

How much does rafter insulation cost in Hertfordshire?

£1,645 to £2,595About 30 m² of roof slope. Free survey and a fixed written quote before any work.

Part of this work can be zero-rated as energy-saving materials until 31 March 2027, and part is standard-rated. If VAT applies, your quote shows which is which.

Work out a guide price for your loft

Building regulations in England

In England, a loft insulated across more than half its area should reach a U-value of 0.16 W/m²K. Insulation alone is not usually notified to building control. How the rules work across the UK.

Questions about rafter insulation in Hertfordshire

How do I book a survey in Hertfordshire?

Send the form or call us. We call back to agree a time and confirm it in writing.

Can you quote for several properties in Hertfordshire?

Yes. Landlords and agents can send a list of addresses and we will survey them in as few visits as we can.

Can I use the loft as a bedroom after rafter insulation?

Insulation alone does not make a loft habitable. Fire escape, stairs, floor strength and headroom all come into a conversion, which needs building control.

Will it cause condensation?

It can if the build-up is wrong for the roof. Old bitumen felt needs a ventilation gap behind the insulation; a modern breathable membrane may not. We check before we design it.

Rafter insulation in other towns

Other loft work in Hertfordshire

Find out what your loft needs

Free survey and a fixed written quote for installation work. Guide prices first if you prefer.