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Loft & roof insulation

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The short answer

Loft, room-in-roof, rafters

Price from
£100.00
Time on site
2 to 6 hours

What you get

You get a well-insulated roof space, leading to a much warmer home, lower energy bills, and improved comfort.

Get up to 3 quotes

When do you need a Loft & roof insulation?

You should check your insulation if your home feels draughty or was built before 2000.

  • When your current layer is under 100mm thick.
  • If upstairs rooms feel too cold in winter.
  • Before you rent out or sell a home.
  • When you want to lower your heating bills.
  • If you notice snow melting quickly on your roof.
  • When you are planning a loft conversion project.

What happens on the day

A specialist will check for damp and clear space before laying the new wool.

  • They check for leaks and safe electrical wiring.
  • Fire covers are fitted over any ceiling lights.
  • First wool layers go between the floor beams.
  • A second layer goes across to reach 270mm.
  • Vents are left clear to prevent timber rot.
  • As a guide, expect to pay £500 to £900.

How to prepare

  • Clear all boxes from the loft floor
  • Ensure the hatch is easy to access
  • Check for any signs of roof leaks
  • Fix any known electrical wiring issues first
  • Keep pets and children in other rooms
  • Provide a safe space for the installer
  • Identify where your cold water tank sits

How to improve your result

  • Fit a thick insulated cover to the hatch
  • Use raised loft legs for storage boards
  • Ensure your water tanks are also insulated
  • Never squash the wool with heavy items
  • Add extra vents if the loft feels humid

Why it is useful day to day

Better insulation makes your home more comfortable all year round.

  • You will spend less money on monthly energy.
  • The house stays cooler during hot summer days.
  • It helps improve your property's overall energy grade.
  • Your boiler won't have to work as hard.
  • It adds value by making the home greener.
  • The materials last for up to 40 years.

Why we ask these questions

Professional installers make sure your home stays safe while getting warmer.

  • Experts ensure your roof has enough air flow.
  • They use fire-safe materials for your peace of mind.
  • Installers can fit stilts for your storage boards.
  • They check that no heavy cables are buried.
  • Professionals give you a certificate for your records.
  • The work usually only takes a few hours.

Frequently asked questions

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