Underfloor Insulation & Installation Costs | Effective Home

Effective underfloor

15% of heat loss in your home could be escaping through uninsulated floorboards. Floor insulation is a great way to keep more heat inside and cut your energy bills.

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Benefits of underfloor insulation

  • More comfortable home – traps heat in your home
  • Moderates temperatures in summer
  • Reduced energy bills
  • Improves EPC for property and value
  • Guaranteed for 25 years

You could qualify for free home insulation under the ECO scheme

  • Free loft, cavity wall and
    underfloor insulation
  • Reduce heating bills and energy waste
  • Easy to apply – we can help

Do I qualify?

Costs and savings

Timber floors are often less than 2cm thick. Underfloor insulation can help stop the cold air under your floor spreading through floorboards making the home cold. It works best on the ground floor of houses with timber floors, particularly above unheated spaces – like a cellar, basement or garage.

Effective Home can also insulate suspended underfloors with large access and cellars using a quality spray foam.

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  • Cost of floor insulation
    from £895 for a 3-bed house
  • Floor insulation could
    save £75 a year on your heating bills
  • Carbon footprint impact
    Save 310kg CO2 a year Carbon dioxide savings

Insulate other parts of your home for even lower bills including Loft insulation and Cavity wall insulation

Why choose Effective Home for underfloor insulation?

  • Free, no-obligation home energy survey
  • Installation at your convenience plus easy ways to pay
  • Hassle-free – our experts will leave your home clean and tidy, with minimum disruption
  • Increase your home’s EPC energy rating
  • 25-year guarantee on underfloor insulation
  • Over 30 years’ insulation experience
  • Approved installers and certified products


Why do timber floors need insulating?

Timber floors are on average only 19mm thick and air leakage creates a heat sink under the home drawing the heat out from below.

Why does floor insulation need to meet building regulations?

When adding extra insulation to your floors, the work must comply with the relevant building regulations for where you live. Effective Home can arrange this for you.

If you live in England or Wales, the floor should achieve a U-value of 0.25 W/m2K or less, if possible. The U-value is a measure of how quickly heat will travel through the floor. To achieve this standard, you will normally need at least 70mm of high-performance foam insulation, or 150mm of mineral wool, but this will vary depending on floor type, shape and size.

If you are replacing at least half of a floor then you have to insulate to these standards whether you planned to or not.

How long does it take to get underfloor insulation installed?

Effective Home will first carry out a check to see if you are eligible for ECO funding. Next we will arrange a free survey to ensure your property meets the ECO funding criteria. Once we complete the above process, we can arrange an installation date for your underfloor insulation.

Our easy process means we can turn around a qualifying application in less than a week, ready for installation.

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