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Verified Pro

Loft & Build

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Offers services in HARPENDEN
We can cover all aspects of a loft conversion and extensions. If you require, we can also design the project including dr...
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Coastal Prime

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Offers services in HARPENDEN
Coastal Prime Ltd provides expert home insulation services across the UK, helping homeowners enhance energy efficiency and...
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Local Roofing Consultants

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Offers services in HARPENDEN
Ring for free survey our quotes on budget on time .we offer insurance backed guarantees members of confederation of roofin...
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Furnish Home

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Offers services in HARPENDEN
We Provide Loft Conversions, Boarding, Loft Insulation, Hatch, Ladders, Velux, plasterboarding & Loft Storage Solutions in...

Recent Insulation Installer Enquiries

17 Nov

Insulation | Cavity Wall

Harpenden - AL5

Enquiry from: Simon S

Start Date: Immediate

cavity wall insulation in a detached chalet bungalow. are you the property owner: owner of the property property type: detached how many bedrooms do you have: 1-2 property age: 1930-70 are you in a c...

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16 Dec

Insulation | Loft / Roof

Harpenden - AL5

Enquiry from: Martyn L

Start Date: Immediate

are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 property age: 1970-2000 are you in a conservation area: no are you looking for loft insula...

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15 Dec

Insulation | Cavity Wall

Harpenden - AL5

Enquiry from: Martyn L

Start Date: Immediate

are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 property age: 1970-2000 what is your current source of heating for the renewable incentive...

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29 Aug

Insulation | Cavity Wall

Harpenden - AL5

Enquiry from: David K

Start Date: Less than one month

We would like a quote for cavity wall insulation please. 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...

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13 Sep

Insulation | External Wall

Harpenden - AL5

Enquiry from: Esther P

Start Date: Immediate

Assessment of cavity walls in extension to house. Older part of house may not be suitable. Would like quotes and information on available grants. Are you the property owner: Owner of the property Pro...

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31 Mar

Insulation | Cavity Wall

Harpenden - AL5

Enquiry from: John E

Start Date: Immediate

Cavity wall insulation to the original remaining walls,extension and refurb in progress Homeowner Supplied and fitted Please contact to appoint

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16 Mar

Insulation | Cavity Wall

Harpenden - AL5

Enquiry from: Charlotte N

Start Date: 1 to 3 months

Homeowner Cavity wall insulation to non extended parts of property Are you the property owner: Owner of the property Property Type: Semi detached How many bedrooms do you have: 3-4 Property Age:...

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15 Mar

Building work | Sound Proofing

Harpenden - AL5

Enquiry from: Caroline W

Start Date: Immediate

I need an effective sound proofing solution installed in the living room and bedroom of my ground floor, high ceiling'd Victorian property, as soon as possible. Impact and airborne noise pollution is ...

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23 Feb

Insulation | Loft / Roof

Harpenden - AL5

Enquiry from: Sally M

Start Date: Immediate

Insulation of loft / roof (between 3rd floor of house and roof) Are you the property owner: Owner of the property Property Type: Semi detached How many bedrooms do you have: 5+ Do you currently ha...

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03 Mar

Building work | Sound Proofing

Watford - WD19

Enquiry from: Christine A

Start Date: Immediate

To supply and fix 10mm DBX pro acoustic boards directly to party wall sealed with DBX tape followed by 15mm acoustic plasterboard and sealed with acoustic sealant. Wall area 8.17 sq meters no door/wi...

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10 Oct

Building work | Sound Proofing

Rickmansworth - WD3

Enquiry from: Sue G

Start Date: Immediate

Insulation for kitchen then plastering.

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29 Jun

Building work | Sound Proofing

Barnet - EN4

Enquiry from: Monika A

Start Date: Immediate

Sound insulation in one medium sized bedroom wall

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10 Mar

Building work | Sound Proofing

Watford - WD19

Enquiry from: Duncan K

Start Date: Immediate

Soundproofing south facing walls of terrace house. Don’t have room for full system due to door and window junctions, so looking at soundproofing layer.

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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 ...

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22 Jan

Insulation | Cavity Wall

Barnet - EN5

Enquiry from: Bhavesh P

Start Date: Immediate

Cavity wall insulation - beads

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09 Jan

Insulation | Cavity Wall

Watford - WD18

Enquiry from: Angello M

Start Date: Immediate

customer in the watford 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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17 Oct

Insulation | External Wall

Barnet - EN5

Enquiry from: DAVID S

Start Date: Immediate

Solid wall external insulation, semi detached bungalow with attic conversion

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21 Sep

Insulation | External Wall

Barnet - EN4

Enquiry from: Kate N

Start Date: Immediate

External wall insulation (not cavity) on one external wall only (side of house).

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03 Oct

Insulation | External Wall

Bushey - WD23

Enquiry from: Andrei E

Start Date: Immediate

I am looking to insulate my flat roofs.

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30 Sep

Insulation | Loft / Roof

Borehamwood - WD6

Enquiry from: Ruth G

Start Date: Immediate

roof insulation and loft boarded are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 3-4 do you currently have loft insulationn: yes do you require...

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How much do Insulation Installer services cost?

How much do Insulation Installers in Harpenden cost?
Costs for Insulation Installers around Harpenden can fluctuate relying on the sort of task that you require to have performed in your residence. It's the question we get asked a whole lot "how much do Insulation Installers in Harpenden charge?". It's definitely very good to have an idea of how much a Insulation Installer are going to likely cost for their services. Prices will rise and fall based upon the products as well as the tradesperson chosen. The list reveals the sorts of service that Insulation Installers typically do as well as the regular price range of these projects. Some projects take longer to complete than others so prices do vary by project.

Tasks that Insulation Installers in Harpenden can do:

View our Insulation Installer cost guide View our Insulation Installer advice

The average price
of an Insulation Installer in Harpenden is:

£6,256

Insulation Installer job Insulation Installer cost in 2026
Loft insulation in Harpenden £300-£3,714
Cavity wall insulation in Harpenden £325-£5,410
Roof insulation in Harpenden £3,875-£10,750
Soundproofing in Harpenden £575-£25,690
External wall insulation in Harpenden £2,250-£10,000

Related Insulation Installer searches in Harpenden

Insulation Installer 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.

How to get free external wall insulation?

This is a very great opportunity to not only get free external wall insulation, but also cut down your energy bills depending on the type of property you live in. Generally, to enjoy free external wall insulation you must at least be part of the group receiving one of the benefits listed below and also depends on the amount of money you earn. The benefits include:

• Income based jobseeker’s allowance (JSA)

• Income support

• Income-related employment and support allowance (ESA)

• Tax credits

• Pension credit guarantee credit.

• Universal credit.

There are also other important factors that determines if you can have a free insulation fitted on your property. These includes the place you reside, the carbon level of your home and according to some suppliers, the level of beneficial impact the insulation will have on your home. In order to have a free external wall insulation installed, you must either be the owner of your home or at least obtain the go ahead from your landlord before any external wall insulation activity can be made.

Good news is, if you fit the aforementioned criteria and you’ve already installed an external wall insulation, you just may be entitled to receive a refund for the good job done. However, to really find out if you’re eligible, we’d recommend you get in touch with your supplier directly. Also, the Energy Saving Trust (EST) can direct you to some organizations who can assist you in the determination of your eligibility.

As a home and property owner living in England, you can also check out the Each Home Counts Advice Website which is committed to giving impartial energy efficiency advice.

At the end of the day, if it turns out you happen to be ineligible for a free external wall insulation, you can still go ahead to contact a professional installer for a help at a competitive price to enjoy the several benefits that comes with home insulation.

does loft insulation cause condensation?

The short and simple answer to this question is yes, loft insulation does cause condensation. Over the years, problems with condensation in loft spaces have become increasingly common. While this may not be harmful in anyway, when the condensation becomes excessive it can lead to more serious issues taking root in your loft like wet rot, dry rot as well as black spot mould. Generally, the best thing to do if you’re concerned about the condensation in your loft space and that it may rapidly become a bigger problem is to get in touch with a damp specialist as soon as possible.

 

Even though insulating your loft space comes with a wide array of benefits like making the top floor rooms warmer, it’s however comes at the cost of making your loft or room space cooler. Condensation in lofts take place primarily due to the humid air making its way through insulation or other gaps into the loft space and touching a cooler surface which in turn results in beads of moisture on the timbers, lintels as well as the underside of the roof. This is why its always a great idea make use of thermal insulation with a vapour barrier that’s installed on the warmer side of the insulating material.

 

Condensation in loft is caused by excess moisture in the air and lack of adequate air ventilation. Here are some top reasons that gives rise to this in the loft:

  • Extra insulation has been installed in the loft leading to a restriction on the natural air circulation in the property.
  • When the storage boxes or other items that has been stockpiled in the loft blocks the roof vents.
  • The release of steam and moist air into the loft space by hot water tanks.
Will external wall insulation stop condensation?

Damp issues on a property are usually generated by a lot of factors such as a poor or broken guttering, condensation and lots more. The question arising here is what is the possibility of External Wall Insulation (EWI) preventing condensation? Not only is EWI a reliable way to reduce condensation-caused damp, but it’s also one of the major reasons property owners in solid wall homes consider thermally rendering or cladding their external walls.

Condensation arises as a result of warm moist internal air hitting a cold surface such as the steaming up of both windows and mirror when having a shower. What happens here is the condensation of the water vapour in the air from a gas to liquid in the process of touching the cold surface - one whose temperature is significantly reduced to reach the dew point. At the dew point, condensation is very rampant, and to tackle this issue you’ll have to heighten the wall temperature in order to convert the moisture to vapour and permit it to pass through the wall. And that’s exactly the job of an external wall insulation!

To get started you must ensure that the walls are clean and dry prior to fitting the external wall insulation. The month of May through to September when the weather tends to be dry and more stable are usually the best period to carry out the project. The external wall insulation will function just like a cosy blanket around the building. Ultimately, changing the feel and temperature of the inside of your home. As a result, the previously cold walls will no longer be cold which goes a long way to mitigate the effects of condensation. Furthermore, when an EWI is installed, the rooms of your home will automatically trap more thermal mass as the heat is saved in the walls’ fabric and released back when the temperature drops.

how much is loft insulation?

More often than not, several homeowners fail to realize there’s so much value sitting right under their roof - the loft. When a loft is insulated, there are so many juicy benefits that can be derived. It can go a long way to save increase you energy savings and several more functions. Therefore, if you really wish to maximize the space under your home’s roof, you’d have to considering insulating it. So how much would it cost to have your loft insulated? Here, you’ll discover the cost of insulating your lofts so you that you can set a budget and start to plan.

 

The cost of insulating a loft is actually affordable for several individuals, however, this depends on a wide range of factors such as the size of the house as well as the type of insulation being installed. One significant factor is the insulating material that you choose to install. If done properly, you’d be able to prevent heat from escaping through the roof of the house which helps improve energy efficiency and ultimately, save you some money on heating bills.

 

If you’d prefer to make it a DIY project and you go for a blanket insulation it costs about £5 per m2. therefore, this will cost within the range of £100 to about £150 for a small home.

 

For a professional service, you’ll be provided with a quote for both the materials and labour. The amount will be based on the number of insulation required, the company hired, your location as well as the method selected. The price to purchase and install blanket insulation  would be between the range of £300 to £400 depending on the size of your home.

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.

how to insulate a loft?

Do you know about 25 percent of heat that escapes from an uninsulated house are lost through the roof? Fortunately, roof insulation is something that can done by all DIYers irrespective of their experience levels. However, if you happen to lack the confidence necessary to pull off this, then it’s strongly recommended that you hire the services of a professional who can guarantee the best results and also save you time and money that could arise from potential cost mistakes. Let’s take a look!

  • Clear out all clutter. This involves taking out all the rubbish and clutter from the loft. In order to work effectively, you’ll need a totally clear and empty loft space.
  • Ensure that there’s sufficient insulation. The importance of a good ventilation cannot be overstated. Poor ventilation will result in forming of condensation and this condensation can make the roof timbers rot and compromise the structural integrity of the entire roof. If there are no roof windows which is the easiest way to provide a loft ventilation, the next best option would be to follow the loft floor along to the point where the roof comes down to meet it. There should be a gap at this point, also referred to as the eaves, between the outside wall and the underside of the roof.
  • Measure your loft area. Take a measurement of the loft space in order to calculate the amount of insulation as well as the type you need. If you’re not sure, always get more that it’s required as skimming on the amount you use will only back fire in form of increased energy costs
  • Check for water pipes.

 

To get started, simply make sure all cracks and gaps in the ceiling are filled using a standard filler or decorator caulk. Once done, clean the gaps in the joists and even to the point of hovering all the dust up. Finally,check for the hazards that can cause you problems before laying the loft insulation.

Is external wall insulation safe?

With the numerous benefits that comes with the installation of an external wall insulation in a building, it’s also important to find out whether it’s also safe before proceeding to fit one in your home. Firstly, to ensure that external wall insulation systems are safe, they must be BBA approved, which means they’ve been subjected to a thorough testing by the British Board of Agrement and therefore, suitable for use in UK homes.

Given the fact that cladding materials have recently generated a lot of debate and negative press about how reliable some particular materials are, questions are being asked of the safety and reliability of external wall insulation. However we must clarify that, although external wall insulation can be classified under cladding, it is very different to rainscreen cladding - which caused the Grenfell fire tragedy.

External wall insulation is completely safe. However, when it comes to fire, the safety of your system depends largely on the insulation type in question. The safest type of insulation you can have installed is the Rockwool insulation boards which are rated as Euroclass A1 non-combustible. The board is specially designed in such a way that it contains fire - preventing it from reaching the other areas of the building. They also do not produce harmful emission or smoke when impacted by fire.

Meanwhile, the Wood Fibre, is also a great insulation which is known to char and not burn. Contrary to many beliefs, it actually burns slowly creating this charring effect which produces an oxygen barrier that helps reduce the spread of fire.

To make your system safer, you can also make use of Fibreglass Mesh for reinforcement. It helps to improve the strength of the tensile which promotes the security of the boards attached to the wall.

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