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Verified Pro

Essex Loft Extensions

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Offers services in HARPENDEN
Essex Loft Extensions was founded by a team of experienced local builders with a shared passion for residential constructi...
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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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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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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:

£6,713

Insulation Installer job Insulation Installer cost in 2026
Loft insulation in Harpenden £350-£5,345
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 £3,125-£12,500

Related Insulation Installer searches in Harpenden

Insulation Installer FAQs

how to insulate a loft roof?

Insulating your loft roof comes with a wide range of benefits. Not only do you get to maintain a comfortable temperature in your house for longer, but you’ll also get to cut down on your heating bills. If you wish to insulate your loft roof, you’ve come to the right place! This process can be very tedious and time consuming especially if you don’t what you’re doing or lack the required confidence to pull it off. It’s advisable to hire the services of a reputable professional who can guarantee the best results for help and also save you some time and money that can come from potentially costly errors.

 

Before you start rolling out, you’d have to make sure that all cracks, gaps and holes in the ceiling are filled with either a standard filler or decorators caulk. You can also clean between between the gaps in the joists thoroughly. And finally, check for hazards that can cause you problems before getting stated.

  • Remember to leave ventilation gaps as you start from the eaves. Then work towards the loft’s centre, starting from the point furthest from the hatch.
  • Lay the first layer between the joists which should be 100 mm and then the subsequent layer should be 170 mm to make it up to the recommended 270 mm.
  • Carry the electric cables above the insulation and work around visible light fittings.
  • Cut the roll in the centre of the floor when rolling out from the eaves on both sides with the help of a craft knife. Ensure that there are no gaps between the insulation and the joists’ edges.
  • Lag pipes as you go in order to prevent walking over the insulation to get back to them.
  • Ensure that the loft is totally insulated
  • Insulate the hatch.
how does loft insulation work?

A lot of an uninsulated property’s heat is lost through the roof and that’s even more alarming, when you realize this figure is up to a quarter of the total heat of the house. Hence, the tremendous importance of preventing this heat loss through loft insulation which will go a long way to help you against spending unnecessary thousands of pounds on heating bill as well as energy loss.

 

Loft insulation is an effective method to achieve the desired result, however the question is, how exactly does it work? Well, it’s time to find out!

 

Using either a fireplace or central heating to heat up your home, a large quantity of that heat would be lost through the roof of your home. Generally, heat rises and when it does, there’s simply no way to prevent it - it’s just science. Escaping by both the conduction and convection methods via your roof, the heat escaping through your ceiling, into the loft space and out into the open air outside can only be significantly reduced by laying loft insulation.

 

Generally, the added layer of insulation works by trapping the heat inside the room below the loft so as to enable the air within your house to stay warmer for longer. What’s more? The layer of insulation also keeps cold air from the outside from entering your home. As a result, you don’t have to heat your home as much in order to achieve the same temperature for each individual room. Over time, just by doing this you can potentially save hundreds pounds. Getting it installed in your home may actually seem a bit expensive at first, but it’s something that’ll eventually pay off.

How much does external solid wall insulation cost?

Before the commencement of any project, it’s always best to get an estimation of the cost. However, determining the cost of an external solid wall insulation is not the easiest of tasks as it relies on varying components such as the insulation materials to be used, labour cost and installation as well as the type of decorative finish to be incorporated. And depending on your choice of insulation material, some may need some adhesives while others may require some fixings which also contributes to the differences in price. As a result, the determination of the material cost alone can be tricky and even more so when various materials cover varying areas.

With that in mind, the cost of external solid wall insulation generally ranges between £80 to £100 per square metre2. As a result, a small flat can cost from £6000 to £9000 whereas a large detached house can have a price ranging between £21000 to £23000. To earn back your investment in terms of energy bill savings can take a couple of years, but it’s surely worth the try as there are several other benefits associated with installing an external solid wall insulation system. What’s more? Another huge factor that can influence the cost of your system is also the amount of work that’s required, how easy it is to be accessed by the installers and lots more

If you’re looking to cut down on the cost of your external solid wall insulation, then the best time for an installation might just be when you’re having another decorating or building project done such as fitting a new roof, window painting, installation of solar PV panels and more. This way, you’ll be able to spread the cost and have a greater value for each penny expended.

Are there grants available for external wall insulation?

External wall insulation works to keep your home cosy and comfy while also helping to cut the energy bills. However with the great benefits also comes great costs, so it’s actually a logical decision to know whether there are grants out there which you’re eligible for to help you handle the cost of the external wall insulation.

There are grants available for external wall insulation, but rarely will you find one that covers the full installation cost. With the help of the government’s Energy Company Obligation (ECO) scheme, a couple of energy companies assist in making your home more energy efficient by offering grants or free insulation. In certain cases whereby you receive particular state benefits, you may as well qualify for a higher grant that’ll cover more of the insulation cost.

However, if your energy supplier doesn’t offer any grant, you need not worry as you can save as much on energy bill after installation. Here’s what insulation can help you save per year on energy bills:

• Floor insulation can help you save within a range of £30 to £75 each year.

• Cavity wall insulation can help you save about £85 to £280 a year.

• Loft Insulation (270mm) can help you save about £135 to £250 a year.

Generally, the amount you’ll be able to save on your energy bills depends mainly on the type and size of your property, as well as how energy efficient it already is without the insulation. In the long run, your external wall insulation will more than give you back your investment on the valuable project through your savings on energy bills. In other words, whether or not you’re eligible for a grant should never stop you from installing an external wall insulation.

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.

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 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 good is external wall insulation?

External Wall Insulation (EWI) is the act of insulating a home by fitting insulation to the exterior parts of the building which in turn improves thermal performance, cuts energy consumption ( savings on energy bill) and also adds to the home’s visual appeal. The systems are built in multiple layers, with the insulation board offering a plethora of options with each being suitable to varying projects and their needs. Installing an external wall insulation comes with a variety of benefits, let’s have a look!

• Thermal Performance Improvement

With EWI, the thermal inertia of the walls are greatly enhanced while also restricting the loss of heat. Ultimately, this lowers heating costs, enhances the comfort of indoor thermal and also reduces CO2 pollution.

• Eliminates Noise Pollution

When the noise levels are high, it can have a bad impact on our overall well being. A great way to reduce the disturbances from the outside like traffic noise is by fitting an External Wall Installation system.

• More Comfortable Living Space

Do you know the damp in homes can contribute to respiratory problems? A properly insulated home will greatly limit the impact of condensation by combating the damp issues. As a result, you can always expect your house to be cosy and comfy irrespective of the season. A cooler summer and warmer spring is guaranteed with EWI.

• Enhances The Property’s Visual Appeal

Looking for an excuse to rejuvenate your home’s aesthetic appeal? Well, you can as well try out adding an EWI system. There are a plethora of unique colours and styles you can pick from to beautify your home effortlessly.

• Adds Value To Property

An insulated home will generally cost more than an uninsulated one at the time of resale. Potential home buyers are more interested in the acquisition of a home with an EWI system due to its various benefits - and a higher demand can only imply a higher price!

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