Find an Insulation Installer you can trust in Welwyn Garden City.

Choose from 64 Insulation Installers, all rated by people like you.

Over 22 reviews & an average rating of 4.6/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Insulation Installers near you

View Shortlist
Verified Pro

MCC Service London

0 review(s)
Offers services in WELWYN GARDEN CITY
MCC Services London Ltd. is a specialist building company located in North London and covering all of London and the surro...
Verified Pro

DK construction solutions

0 review(s)
Offers services in WELWYN GARDEN CITY
At DK Construction Solutions, we bring your vision to life with a wide range of expert services, including: Tiling: Per...
Verified Pro

Handyfox

0 review(s)
Offers services in WELWYN GARDEN CITY
If need home repairs or have a list of things to do around the house, and you are having trouble finding a skilled handyma...
Verified Pro

Home Insulation Contractors

0 review(s)
Offers services in WELWYN GARDEN CITY
Home insulation contractors are your trusted source to compare Quotes from top-notch Insulation contractors. Our extensive...
Verified Pro

Timberwise (UK)

0 review(s)
Offers services in WELWYN GARDEN CITY
Caring for properties for almost 50 years throughout the UK in Damp Proofing, Dry Rot, Wet Rot, Woodworm, Waterproofing an...

Recent Insulation Installer Enquiries

07 Jun

Insulation | Loft / Roof

Welwyn Garden City - AL7

Enquiry from: Janine H

Start Date: Immediate

loft insulation quote on semi detached house are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 3-4 do you currently have loft insulationn: y...

Post a similar request >

03 Nov

Insulation | Cavity Wall

Welwyn Garden - AL8

Enquiry from: William P

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 >

03 Nov

Insulation | Loft / Roof

Welwyn Garden - AL8

Enquiry from: William P

Start Date: Immediate

hi, i'd like to have my loft/roof insulated its 44 sqm of ceiling joist area. thank you. billy. are you the property owner: owner of the property property type: semi detached how many bedrooms do you...

Post a similar request >

18 Sep

Insulation | Cavity Wall

Welwyn Garden - AL8

Enquiry from: Jim W

Start Date: Immediate

customer in welwyn garden areas is looking to do a couple of projects at the moment, and would like quotes for cavity wall insulation.confirmed interest via sms and email at 18/09/2022 15:54.please ca...

Post a similar request >

17 Jan

Insulation | Cavity Wall

Welwyn Garden City - AL7

Enquiry from: Peter W

Start Date: Immediate

quote for cavity wall insulation to mid terrace 1950's property. note there is a single storey upvc conservatory to rear. are you the property owner: owner of the property property type: terrace how ...

Post a similar request >

29 Oct

Insulation | Cavity Wall

Welwyn Garden - AL8

Enquiry from: Nick C

Start Date: Immediate

3 Bedroom semi detached house, about to renovated in early 2021 and we're looking for cavity wall insulation for the existing dwelling.

Post a similar request >

08 Jan

Building work | Sound Proofing

Welwyn Garden - AL8

Enquiry from: Mrs A

Start Date: 1 to 3 months

Soundproofing on a low ceiling in the communal dining-room Time scale: 1-3 months Please call to appoint

Post a similar request >

22 Aug

Insulation | Loft / Roof

Welwyn Garden City - AL7

Enquiry from: Swarn P

Start Date: Immediate

Are you the property owner: Owner of the property How many bedrooms do you have: 3-4 Do you currently have loft insulationn: No Age of Property: 1970-2000 Time scale: Immediate Are you interested in c...

Post a similar request >

19 Jun

Insulation | Cavity Wall

Welwyn Garden City - AL7

Enquiry from: James G

Start Date: Immediate

Commercial building Are you the property owner: Tenant (with permission) Property Age: 1930-70

Post a similar request >

04 Sep

Insulation | Cavity Wall

Welwyn Garden City - AL7

Enquiry from: Ash B

Start Date: 1 to 3 months

Homeowner Supplied and fitted Please contact to appoint *

Post a similar request >

29 Jan

Insulation | Loft / Roof

Welwyn Garden City - AL7

Enquiry from: Tina M

Start Date: Immediate

Insulation in our loft to be checked and improved 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: Ye...

Post a similar request >

26 Oct

Insulation | External Wall

Welwyn Garden City - AL7

Enquiry from: Paul R

Start Date: Immediate

2 No Air to Air heat pump + 1 Air to Water heat pump in WGC|Aim to replace electric heaters with air to air heating. Have hot water tank for hot water system. Or a combined system. Are you the proper...

Post a similar request >

25 Oct

Insulation | Loft / Roof

Welwyn Garden - AL8

Enquiry from: F

Start Date: 1 to 3 months

Loft insulation and boarding 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 Age of Property: 19...

Post a similar request >

16 Feb

Insulation | Loft / Roof

Welwyn Garden - AL8

Enquiry from: Nigel F

Start Date: Immediate

putting insulation and boarding in the loft Are you the property owner: Owner of the property How many bedrooms do you have: 3-4 Do you currently have loft insulationn: No Age of Property: 1930-...

Post a similar request >

How much do Insulation Installer services cost?

How much do Insulation Installers in Welwyn Garden City cost?
Costs for Insulation Installers around Welwyn Garden City can vary depending upon the type of task that you want to have actually performed in your home. It's the inquiry we get asked a whole lot "how much do Insulation Installers in Welwyn Garden City cost?". It's generally better to have an idea of how much a Insulation Installer are going to likely cost for their services. Prices are going to rise and fall based on the materials as well as the tradesperson selected. The list reveals the sorts of task that Insulation Installers normally do as well as the typical price range of these projects. Some jobs take longer to complete than others so costs do differ by project.

Tasks that Insulation Installers in Welwyn Garden City can do:

View our Insulation Installer cost guide View our Insulation Installer advice

The average price
of an Insulation Installer in Welwyn Garden City is:

£4,300

Insulation Installer job Insulation Installer cost in 2025
Loft insulation in Welwyn Garden City £450-£690
Cavity wall insulation in Welwyn Garden City £400-£820
Roof insulation in Welwyn Garden City £7,500-£11,500
Soundproofing in Welwyn Garden City £900-£1,380
External wall insulation in Welwyn Garden City £6,000-£15,000

Related Insulation Installer searches in Welwyn Garden City

Insulation Installer FAQs

how thick should loft insulation be?

Over the years there has been an increase in the recommended thickness of loft insulation by the government. Obviously, the reason behind this is pretty simply - the thicker the layer of your loft insulation the bigger your savings. The UK government is very keen to every house in the country to have loft insulation fitted where possible as it helps to minimize the heating demands of these properties. Households get to benefit from loft insulation in so many ways which includes reduced energy energy bills as well as having a home that stays at a more comfortable temperature for longer.

 

Generally, for the government energy efficiency is crucial as it implies that the highest demand ( which is usually the time of the day when gas or electricity use is at its peak ) reduces, since each building requires slightly less energy. Overall, that ultimately implies that new power plants don’t have to be built which is some nice cost savings for the government.

 

In the 1980’s, any thickness of loft insulation from 25 mm to 50 mm was considered the standard. But then, building regulations stated that homes should have as much as 100 mm of loft insulation. Over time, this gradually increased to 270mm for new builds and also recommended for other properties, although not essential. As a result of this, there’s always a need to check how much insulation you currently have in your loft before you decide to purchase more. You may discover that you already have something within the range of 20 mm to 200 mm up there and knowing this and the insulation values will assist in determining how much more you’ll need to purchase, if any at all. You should also note that some modern materials can offer the same thermal insulation whilst not being as thick.

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 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.

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.

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.
Is loft insulation flammable?

When thinking about the right insulation material for your loft, some of the first few things that comes to mind is the various properties of that material as well as how good they fit with your home’s needs.naturally, you’d like to ensure that the insulation will be efficient enough to add to the overall energy efficiency of your home, however there are also other features that may not get as much attention but also happens to be equally important. As the primary function of an insulation is to blanket your house to offer a barrier against heat loss, going for an insulation material that’s also fireproof is crucial as loft insulation can burn. Although most insulation materials are fireproof, a myriad of problems can actually make your insulation burn.

 

For instance, fibreglass insulation is produced using glass combined with plastic polymers and is naturally resistant to fire. However, even at that you’d have to be careful with batts that are supported with foil or paper due to the fact that these materials can burn pretty quickly. Cellulose, on the other hand, is not fireproof and is required to be treated by other flame retardants in order to help reduce combustion. Some of the best insulation materials that are resistant to fire includes the following:

  • Fibre glass. This is made of glass that’s spun into fibres, then combined using plastic polymers. As a result, fiberglass insulation is naturally resistant to fire.
  • Mineral wool. Having a high melting temperature, this insulation material happens to be a great fit for thermal applications due to its superior fire resistant properties. In fact, mineral wool is still naturally non-combustible even if composed of recycled iron and steel by-products, or from actual mineral rock itself.
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.

Do I need planning permission for external wall insulation?

If you want to install an external wall, it is only wise to consider whether or not a planning permission is required in order to avoid a hefty fine. In a great kudos to the government and a welcome relief to home and property owners, the installation of external wall insulation is seen as an “improvement to the house and not an “extension or an “enlargement. Ultimately, this implies that external wall insulation fitting is to be done under permitted development and a planning application may not be required. However, like many other regulations, there are also exceptions to this rule and the main one is if the activity changes the appearance of your property. Properties such as a listed building having tighter regulations may pose some issues. As a result, we’d advise you to consult your local authority to ensure that there’s no fast rule to this topic before commencement of the external wall insulation project.

At the moment, according to the Government Building Regulations, the surface of the entire wall is to be improved to existing standards if the area to be insulated exceeds 25 percent of the wall. In normal situations this is usually the typical case, however to prevent avoidable fines and other possible punishments, it is always best to reach to your local authority and check out the rules guiding external wall insulation in your constituency. Furthermore, since external wall insulation is not a task that’s recommended to be done by yourself, you can also ask the professional external wall insulation fitting company for the applying rules before proceeding. As a good professional, the company should have a better knowledge of the rules and regulation guiding its activities.

Insulation Installer help and advice

How it works

Tell us about your Insulation Installer project

Answer a few quick questions to help us match you with the right Insulation Installer

Get up to 4 free quotes

Receive no-obligation quotes from 4 Insulation Installers working in Welwyn Garden City.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Insulation Installer.

Are you a Insulation Installer in Welwyn Garden City?

View our open Insulation Installer jobs near you

Join today
View Shortlist