Cavity Wall insulation Prices

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Cavity wall insulation

Cavity wall insulation

Homes built after 1920 are more likely to have wall cavities, which is a gap between two layers. Insulation will fill this gap, reducing heat loss and effectively cutting your annual energy bills.

How much will I save with wall cavity insulation?

With wall cavity insulation you have a cheap way to insulate your home and reduce your energy bills.

With cavity insulation you’ll make savings on your household bills and your carbon dioxide emissions. This means you’ll be financially better off, whilst helping the environment with global warming issues.

Having wall insulation installed will save you up to £135 every year and considering costs are between £100 and £350, payback is as little as three years. This will help many homes escape fuel poverty, which is classified as spending 10% or more of income on dual fuel bills.

On top of this financial saving you’ll also see a major carbon saving, reducing your home’s footprint. As much as 550kg of carbon emissions can be cut every year with the simple installation of cavity insulation.

Is my home suitable for cavity insulation?

Cavity wall insulation is likely to be suitable for your home if:

  • The cavity in your walls is at least 50mm in width

  • The brickwork of your walls remains in good condition

  • The property is over 10-years-old

  • The external walls have unfilled cavities

How is wall cavity insulation installed?

When wall insulation for the cavities is installed, small holes are drilled into the wall at intervals. Insulation is then blown into the cavity with special equipment until the gap has been filled, and the holes are refilled.

This isn’t something that can be done with DIY and a registered, professional installer will be needed. The job takes roughly two hours for a trained installer, so it’s a simple and quick method with no mess left behind.

Cavity wall insulation quotes

Wall cavity insulation is a proven way to reduce your energy bills, and is one of the cheapest ways to slash energy bills.

If you’re interested in cutting your expenses and retaining more heat in your home, complete our quick form and receive up to four FREE quotes from vetted and reputable insulation companies in your area.

Average Cavity wall insulation cost

Average price per Cavity wall insulation job in 2021

Avg. price low

Avg. price low
£600

Avg. price

Avg. price
£800

Avg. price high

Avg. price high
£920

£1100

£825

£550

£275

£0

Cavity wall insulation installation cost in 2021

Labour cost £560
Material cost £200
Waste removal £40

Advantages for Cavity wall insulation

  • There is no possibility of the moisture travelling from the outer wall to the inner wall
  • Cheaper than exterior or interior wall insulation.
  • Doesn't increase the thickness of your walls
  • Minimal disruption when installed as all done from outside

Disadvantages for Cavity wall insulation

  • Thickness of insulation is restricted by width of cavity
  • There is also the possibility that the installation will leave unfilled air pockets –causing ‘cold spots’

Cavity wall insulation Manufacturers

Cavity wall insulation FAQs

Does cavity wall insulation lead to damp problems?

Insulating a cavity wall should not affect the damp proofing of the wall. All insulation approved for use in cavity walls has been tested to ensure that it does not allow damp to pass through the wall. Some walls which receive a lot of wind driven rain are unsuitable for cavity wall insulation.

ThermoFoam Installations

Based: in Bodmin, PL31

The UK Spray Foam Insulation Specialists 100% NATIONWIDE COVERAGE – FREE on-the-spot estimate,...

Latest review

Charles A., EX17
24th May 2017

Insulation | Cavity Wall in Crediton

The surveyor knew his job, but still awaiting quote & fear it will be very expensive.

BRIGHT HOME RENEWABLES

Based: in Bournemouth, BH8

Bright Home Renewables are a leading polyurethane spray foam insulation, roofing and loft room speci...

Latest review

H., PO12
27th January 2017

Insulation | Cavity Wall in Gosport

Bright Home were the only company who came back to me and they were good.

Rated Local builders

Similar Customer Enquiries for Cavity wall insulation

15 Apr

Insulation | Cavity Wall

Huntingdon - PE26

Enquiry from: Neil W

Start Date: Immediate

mr requested quotes for cavity wall insulation from a builder around huntingdon. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information...

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15 Apr

Insulation | Cavity Wall

Seascale - CA20

Enquiry from: Joanne B

Start Date: Immediate

customer in the seascale area made an enquiry a couple of projects including cavity wall insulation.call anytime and arrange an appointment to discuss. below is some details about this project: are yo...

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15 Apr

Insulation | Cavity Wall

Bristol - BS7

Enquiry from: Robert B

Start Date: Immediate

customer made an online enquiry for cavity wall insulation and confirmed on telephone, sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to qu...

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15 Apr

Insulation | Cavity Wall

Dumfries - DG1

Enquiry from: Tom H

Start Date: Immediate

old cavity wall removal replaced with new are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 property age: 1930-70 are you in a conservation ...

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14 Apr

Insulation | Cavity Wall

Tunbridge Wells - TN2

Enquiry from: Howard L

Start Date: Immediate

mr requested quotes for cavity wall insulation from a builder around tunbridge wells. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the inform...

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13 Apr

Insulation | Cavity Wall

Guildford - GU2

Enquiry from: James F

Start Date: Immediate

mr requested quotes for cavity wall insulation from a builder around guildford. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information ...

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13 Apr

Insulation | Cavity Wall

Nottingham - NG9

Enquiry from: Stephen S

Start Date: Immediate

customer made an enquiry for cavity wall insulation and confirmed on the quotatis site they would like quotes from a builder.mr lives in the nottingham area and would like a call to discuss options.se...

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12 Apr

Insulation | Cavity Wall

Bexhill-on-Sea - TN39

Enquiry from: Anita W

Start Date: Immediate

customer in bexhill-on-sea area has requested that we arrange quotes for their cavity wall insulation project.mrs are considering various options and would like to discuss with a builder directly.plea...

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12 Apr

Insulation | Cavity Wall

Minehead - TA24

Enquiry from: Tim L

Start Date: Immediate

cavty wall insulation for kitchen extension are you the property owner: owner of the property how many bedrooms do you have: 3-4 property age: pre 1900 are you in a conservation area: yes are you loo...

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10 Apr

Insulation | Cavity Wall

Dumfries - DG1

Enquiry from: Tom H

Start Date: Immediate

40 year old cavity wall removed and replaced with new are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 property age: 1930-70 are you in a c...

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09 Apr

Insulation | Cavity Wall

Seascale - CA20

Enquiry from: Stephen W

Start Date: Less than one month

customer made an enquiry for cavity wall insulation and confirmed on the quotatis site they would like quotes from a builder.mr lives in the seascale area and would like a call to discuss options.see ...

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08 Apr

Insulation | Cavity Wall

Montrose - DD10

Enquiry from: Paul W

Start Date: Immediate

loft better insulated. under floorboards and walls are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 3-4 property age: 1970-2000 are you in ...

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08 Apr

Insulation | Cavity Wall

Stafford - ST19

Enquiry from: Tracey R

Start Date: Immediate

customer in stafford areas is looking to do a couple of projects at the moment, and would like quotes for cavity wall insulation.confirmed interest via email at 08/04/2021 14:04.please call to arrange...

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07 Apr

Insulation | Cavity Wall

Cirencester, Fairford, Lechlade - GL7

Enquiry from: Ian D

Start Date: Immediate

customer has a insulation project they are looking to have done, specially they want quotes for cavity wall insulation. they are unsure of options so would like to discuss with a builder.confirmed int...

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07 Apr

Insulation | Cavity Wall

Newry (South Armagh section) - BT35

Enquiry from: Elaine Q

Start Date: Immediate

looking to get walls insulation are you the property owner: owner of the property how many bedrooms do you have: 3-4 property age: post-2000 are you in a conservation area: unknown property type: det...

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07 Apr

Insulation | Cavity Wall

Morecambe - LA4

Enquiry from: Sue S

Start Date: Immediate

cavity wall insulation into 1 wall from the outside ( end of terrace) are you the property owner: owner of the property how many bedrooms do you have: 3-4 property age: 1900-30 are you in a conservati...

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06 Apr

Insulation | Cavity Wall

Sandy - SG19

Enquiry from: Daniel S

Start Date: Immediate

customer made an online enquiry for cavity wall insulation and confirmed on sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote. are yo...

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02 Apr

Insulation | Cavity Wall

Plymouth - PL1

Enquiry from: Stuart R

Start Date: Immediate

mr requested quotes for cavity wall insulation from a builder around plymouth. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information b...

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01 Apr

Insulation | Cavity Wall

Barnard Castle - DL12

Enquiry from: John W

Start Date: Immediate

customer has a insulation project they are looking to have done, specially they want quotes for cavity wall insulation. they are unsure of options so would like to discuss with a builder.confirmed int...

Post a similar request >

01 Apr

Insulation | Cavity Wall

London - SE7

Enquiry from: Romnath P

Start Date: Immediate

customer in the london area made an enquiry a couple of projects including cavity wall insulation.call anytime and arrange an appointment to discuss. below is some details about this project: are you ...

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