Cavity Wall insulation Prices

Compare Cavity Wall Insulation Prices Near You

Home > Insulation Projects > Cavity wall insulation

Average Cavity wall insulation cost

The average cost of Cavity wall insulation is £700 in your area. Costs can change based on the materials and the tradesman picked. The upper price range can be as high as £820 in your area. The material costs are in general about £200.

Average price per Cavity wall insulation job in 2024

Avg. price low

Avg. price low
£400

Avg. price

Avg. price
£700

Avg. price high

Avg. price high
£820

£1000

£750

£500

£250

£0

Prices based on actual Cavity wall insulation costs for your area, as reported by local LeadsDoWork members.

Cavity wall insulation installation cost in your area 2024

Labour cost £460
Material cost £200
Waste removal £40
Time frame: 1-2 days

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

Is cavity wall insulation a good idea?

Cavity wall insulation is basically the process of installing an insulating material between the two layers of brick making up a cavity wall, either as a retrofit measure or at the time of building. Obviously this is not a choice if you have solid wall, but for those who do possess a cavity wall, it represents an opportunity you may not want to let slide as it is a worthwhile and affordable wall insulation option. Clearly, cavity wall insulation will make your home or property feel warmer, but it also does come with a range of other benefits which is why we’d recommend installing it. In this post, we’re going to look at a number of reasons why having a cavity wall insulation done is a good idea.

  • It’s one of the cheapest energy saving measures that’s available. Not only is cavity wall insulation really effective, but it can also deliver great saving. In other words, it possesses a bigger payback compared to other options. When compared to other types of insulation, you can’t install cavity walls insulation by yourself, however it’s not so expensive to have it installed. The cost of the insulation will be determined by a number of factors such as your location, the company hired and more.
  • It reduces your energy bills. Cavity wall insulation can save you about £100 to £200 on a yearly basis on heating bills. In other words, this is usually able to pay for itself in as little as two years.
  • It reduces your carbon carbon footprint. If your home is heated with gas or electricity like several other homes, producing that energy involves burning fossil fuels which is known to be hazardous for the environment. If the heat generated is now allowed to escape through the walls, that means you’d have to use more to keep up your required temperature. Installation of cavity wall insulation in homes will enable a more efficient usage of the energy which will ultimately cut UK’s carbon usage.
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.

How does cavity wall insulation work?

In recent times, more and more home and property owners are starting to come to terms with the large returns and little investment in cavity wall insulation provides. For a relatively little amount you can achieve a lot, from an increase in your home’s energy efficiency and reduction in heating bills to a huge boost in your property’s resale value and lots more. This makes you wonder how an ordinary insulation can help you achieve so much, right? Well, you’re definitely not alone! Several other potential investors are also eager to know exactly how the cavity wall insulation works to deliver all these juicy benefits. In this post, we’re going to go provide you with a detailed insight on how cavity wall insulation works. Let’s take a look!

 

Typically, cavity wall insulation works as acting as a shield which prevents the escape of heat from your home. It features a reflective surface which serves as a barrier to reflect heat from one side of the panel, effectively minimizing the amount of heat conduction that escapes through. This protection of your home from heat penetration comes with a couple of benefits with the obvious one being an incredible thermal efficiency. An insulated home or property is able to maintain a much more balanced temperature throughout the year – staying a lot cooler during the summer months and retain the heat generated during the winter months. However, a less talked about benefit is the fact that when an insulation is done during the construction of a house, the whole development phase can be completed a lot quicker. This is mainly because insulation offers total protection against weather conditions which enables internal trades to continue without the need to wait for brickwork or cladding to be completed.

How do I know if I have cavity wall insulation?

With cavity walls being very similar to other type of brick works, it can be quite confusing to figure out the type of wall your property possesses. If your house was constructed after the 1920s, then its highly likely the you have cavity walls, while older houses (houses before the 1920s) are likely to have solid walls. What’s more? If you happen to own a home that was built in the last decade, then it’s very possible that it was built with insulation installed during construction.

An effective way to determine whether or not your property is built with cavity wall is to examine the brickwork on your home’s exterior. The bricks will typically possess a regular pattern if it features cavity walls. In the event whereby the brick work is covered by render, you can also figure it out by taking a measurement of the wall’s width. If the brick wall is beyond 3000mm in thickness ( from the exterior wall to the interior wall), then it probably features a cavity. Meanwhile, a wall that’s narrower is very likely to be solid. Stone walls, on the other hand, may actually be thicker but are most times solid.

In a situation whereby your house is built using steel frame or timber frame, or made using pre-fabricated concrete, there are varying rules that applies when it comes to insulation and should be examined by an expert before any insulation is installed. More often than not, most contractors will have installed special air vents, which can also be a good indicator that a cavity wall insulation has been done.

InstaFibre 'Filling the Gap' - Cavity Wall Insulation

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love LeadsDoWork it's a big part of my …

Love LeadsDoWork it's a big part of my Business I would recommend to anyone

Home Energy Save GB

Based: in Stoke-on-trent, ST4

At Home Energy Save GB Ltd we are specialists in all fields of damp proofing and energy efficiency ...

Latest review

Chris M., L31
22nd November 2023

Insulation | Cavity Wall in Liverpool

Made appointment. sat in for the two hour window and nobody came.

Weatherdry Insulation

Based: in Tamworth, B79

We are a company that specialises in Damp Proofing & Insulation. We have a 100% success rate in res...

Latest review

Benjamin J., CV35
1st November 2021

Insulation | Cavity Wall in Warwick

Home consultant didn't bother turning up or contact to cancel prior.

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

Weatherdry Insulation Ltd

7 review(s)
Based: in Tamworth, B79 7XH

We are a company that specialises in Damp Proofing & Insulation. We have a 100% success rate in resolving damp issues connected to any form of damp. We can also offer the latest solutions to condensation. We offer a FREE, NO OBLIGATION damp ...

Home Energy Save GB

7 review(s)
Based: in Stoke-on-trent, ST4 2RW

At Home Energy Save GB Ltd we are specialists in all fields of damp proofing and energy efficiency within the home. Whether your problem is loft condensation, rising damp, penetrating damp, black mould or simply heat loss then we can help. We sp...

Bright Home Renewables LTD

7 review(s)
Based: in Bournemouth, BH8 8EW

Bright Home Renewables are a leading polyurethane spray foam insulation, roofing and loft room specialist. Whether you are a domestic client looking for loft insulation or roof stabilisation or an architect or contractor needing assistance with a ...

Similar Customer Enquiries for Cavity wall insulation

25 Nov

Insulation | Cavity Wall

Bodmin - PL30

Enquiry from: Jacqueline A

Start Date: Immediate

In need of cavity wall insulation for a double garage with a studio flat above and possibly insulation for the floor of the flat.

Post a similar request >

20 Nov

Insulation | Cavity Wall

Llandudno - LL30

Enquiry from: Aishah M

Start Date: Immediate

single layer wall internally insulated

Post a similar request >

19 Nov

Insulation | Cavity Wall

Lincoln - LN3

Enquiry from: Michael G

Start Date: Immediate

Bungalow cavity wall insulation

Post a similar request >

07 Nov

Insulation | Cavity Wall

Brampton, Carlisle - CA8

Enquiry from: Trevor B

Start Date: Immediate

Update our internal insulation to reduce electric bill.

Post a similar request >

05 Nov

Insulation | Cavity Wall

Bristol - BS9

Enquiry from: Valerie H

Start Date: Immediate

customer in bristol 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.please call...

Post a similar request >

28 Oct

Insulation | Cavity Wall

Leeds - LS13

Enquiry from: June R

Start Date: Immediate

customer made an enquiry for cavity wall insulation and confirmed on the local quotes site they would like quotes from a builder.miss lives in the leeds area and would like a call to discuss options.s...

Post a similar request >

24 Oct

Insulation | Cavity Wall

Luton - LU1

Enquiry from: Ashuk A

Start Date: Immediate

flat roof insulation 28m2, installation of dry wall to external walls approx 85m2 and cavity wall insulation approx 43m2 are you the property owner: tenant (with permission) property type: commercial...

Post a similar request >

24 Oct

Insulation | Cavity Wall

Loughborough - LE12

Enquiry from: Steven H

Start Date: Immediate

Cavity wall insulation Lead Cavity wall insulation Lead

Remove old (installed in 1998) and install new CWI . 1980's, box-standard 2-story, 4 Bed house, which is approximately 9m wide and 9m deep.

Post a similar request >

22 Oct

Insulation | Cavity Wall

Crewe - CW2

Enquiry from: David G

Start Date: Immediate

We had cavity wall insulation installed several years ago. However, when we had some building work done, it was obvious that the insulation had not been installed completely, throughout all the exter...

Post a similar request >

22 Oct

Insulation | Cavity Wall

Ilford - IG2

Enquiry from: Syed A

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...

Post a similar request >

17 Oct

Insulation | Cavity Wall

Pontefract - WF8

Enquiry from: Diane C

Start Date: Immediate

Cavity wall insulation on gable end and front wall where there are windows and doors

Post a similar request >

09 Oct

Insulation | Cavity Wall

Preston - PR4

Enquiry from: Jim W

Start Date: Immediate

looking for someone who can install graphite coated beads in the Euxton area for my daughter

Post a similar request >

02 Oct

Insulation | Cavity Wall

Barnet - EN4

Enquiry from: James M

Start Date: Immediate

customer in the barnet 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 ...

Post a similar request >

14 Sep

Insulation | Cavity Wall

Omagh - BT78

Enquiry from: Patrick W

Start Date: Immediate

Cavity wall insulation to terrace house with a entry

Post a similar request >

14 Sep

Insulation | Cavity Wall

Kendal - LA9

Enquiry from: Sophie J

Start Date: Immediate

Cavity wall inspection Report

Post a similar request >

14 Sep

Insulation | Cavity Wall

Tain - IV20

Enquiry from: Katie M

Start Date: Immediate

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

Post a similar request >

09 Sep

Insulation | Cavity Wall

St. Austell - PL25

Enquiry from: Lionel H

Start Date: Immediate

large commercial building requiring wall insulation

Post a similar request >

07 Sep

Insulation | Cavity Wall

Forres - IV36

Enquiry from: Kelvin E

Start Date: Immediate

We need wall cavity EPS insulation in a property at Forres area by next month. The Existing insulation need remove & install EPS bead. If interested, I will send more details.

Post a similar request >

06 Sep

Insulation | Cavity Wall

Oxford - OX3

Enquiry from: Adam W

Start Date: Immediate

3 x buildings to have cavity wall insulation installed

Post a similar request >

05 Sep

Insulation | Cavity Wall

Norwich - NR13

Enquiry from: Christine J

Start Date: Immediate

Cavity wall installation , for detached bungalow

Post a similar request >

How it works

Tell us about your Cavity wall insulation project

Answer a few quick questions, so we can match you with professionals who can help.

Find up to 4 Builders in your area

Get free, no-obligation quotes from 4 verified Builders working in your area.

Hire with confidence

Compare customer reviews, services and prices, and choose the right professional for you.