Find an Insulation Installer you can trust in Caernarfon.

Choose from 6 Insulation Installers, all rated by people like you.

Over 14 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

Home Energy Save GB

7 review(s)
Offers services in CAERNARFON
At Home Energy Save GB Ltd we are specialists in all fields of damp proofing and energy efficiency within the home. Wheth...
Verified Pro
Trusted roofing specialists delivering top-quality repairs, replacements, and installations for homes and businesses. With...

ECO Spray Foam Insulation

0 review(s)
Offers services in CAERNARFON
We know a thing or two about Spray Foam Insulation. We have over 30 years experience in the building trade and over 10 yea...

Recent Insulation Installer Enquiries

29 Jun

Building work | Sound Proofing

Caernarfon - LL54

Enquiry from: Gwyn H

Start Date: Immediate

Sound-proofing in one bedroom.

Post a similar request >

27 Sep

Insulation | External Wall

Caernarfon - LL55

Enquiry from: Pamela B

Start Date: Immediate

Lean 2 wRm roof and new french doors! New lead, and gutter around the conservatory please. Caernarfon. Gwynedd. Ready yo go asap

Post a similar request >

17 Oct

Insulation | Loft / Roof

Caernarfon - LL55

Enquiry from: Ben A

Start Date: Immediate

are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 1-2 bedrooms property age: 1900-30 interested in quote for cavity wall and loft insulation: lof...

Post a similar request >

17 Oct

Insulation | External Wall

Caernarfon - LL55

Enquiry from: Ben A

Start Date: Immediate

i'm looking at getting external wall insulation for my 2 storey mid terrace house. i would like the front of the property to be done and the rear done at a later time. however at present there is a da...

Post a similar request >

02 Dec

Building work | Sound Proofing

Caernarfon - LL54

Enquiry from: Neville H

Start Date: Immediate

Replacement 3 way Diverter and NTC sensor fitted to my Main Combi ECO range boiler.

Post a similar request >

22 May

Building work | Sound Proofing

Caernarfon - LL55

Enquiry from: Julie L

Start Date: Immediate

Soundproof in living room from neighbours Time scale: Immediate Please call to appoint

Post a similar request >

05 Jan

Insulation | Loft / Roof

Caernarfon - LL55

Enquiry from: David l

Start Date: Immediate

Attic insulation

Post a similar request >

21 Aug

Insulation | Loft / Roof

Caernarfon - LL55

Enquiry from: Eifion R

Start Date: Less than one month

Loft insolation Are you the property owner: Owner of the property How many bedrooms do you have: 3-4 Age of Property: Pre 1900 Time scale: Less than one month Are you interested in cavity wall insulat...

Post a similar request >

12 Jan

Insulation | External Wall

Caernarfon - LL55

Enquiry from: Moira T

Start Date: Immediate

External wall insulation (solid wall) mid terrace so just one wall Are you the property owner: Owner of the property Property Type: Terrace How many bedrooms do you have: 1-2 Bedrooms Property Age: ...

Post a similar request >

04 Jun

Insulation | Loft / Roof

Caernarfon - LL54

Enquiry from: Stephanie P

Start Date: Immediate

To increase loft insulation (100ml at moment) to bungalow Are you the property owner: Owner of the property Property Type: Detached How many bedrooms do you have: 1-2 Do you currently have loft insula...

Post a similar request >

09 Feb

Insulation | Cavity Wall

Caernarfon - LL55

Enquiry from: Karen J

Start Date: Immediate

Home owner Cavity wall insulation in gable end of new house extension Supplied and fitted 3-6 months Please contact to appoint *

Post a similar request >

09 Feb

Insulation | External Wall

Caernarfon - LL55

Enquiry from: Karen J

Start Date: Immediate

15yrs old , external wall cavity on cable end of house extension requires foam injection insulation. Homeowner Supplied and fitted Please contact to appoint

Post a similar request >

How much do Insulation Installer services cost?

How much do Insulation Installers in Caernarfon charge?
Costs for Insulation Installers around Caernarfon can fluctuate depending on the type of task that you want to have actually done in your house. It's the question we are asked a great deal "how much do Insulation Installers in Caernarfon cost?". It's often very good to have an idea of how much a Insulation Installer are going to likely cost for their work. Rates will likely change based on the products as well as the tradesman picked. The list shows the types of service that Insulation Installers typically do and the regular price variety of these tasks. Some tasks take longer to finish than others so prices do vary by project.

Tasks that Insulation Installers in Caernarfon can do:

View our Insulation Installer cost guide View our Insulation Installer advice

The average price
of an Insulation Installer in Caernarfon is:

£4,300

Insulation Installer job Insulation Installer cost in 2026
Loft insulation in Caernarfon £450-£690
Cavity wall insulation in Caernarfon £400-£820
Roof insulation in Caernarfon £7,500-£11,500
Soundproofing in Caernarfon £900-£1,380
External wall insulation in Caernarfon £6,000-£15,000

Related Insulation Installer searches in Caernarfon

Insulation Installer FAQs

How long does it take to install insulation?

How long it takes to install insulation will depend on the size of your property. In general, loft and cavity wall insulation can be installed in a day or two. External wall insulation will usually take longer to install. The rep or installer will be able to advise you when quoting for the job how long this will be.

what is the best loft insulation?

If you have a loft, then the next thing that’s crucial is a loft insulation. Asides from cutting down on your carbon footprint, when you’re able to install an effective loft insulation you can slash your heating bills by up to £250 per year. What’s more? Besides making your home more energy efficient, it can also increase the value of your property a great deal. So if you’re also considering the insulation of your loft, one of the few things that comes to mind is, what loft insulation is the best to incorporate? In order to help you make the best informed decision possible, this post is going to address this issue and put you on the right path.

 

In truth, there’s no way to say exactly which type of insulation is the best as all types usually have a different purpose as well as usage. The insulation you choose for your home’s loft is be based largely on the how you’re going to make use of the space as well as any unique challenges you might face given the shape of your home’s loft. Below are some types of insulation to give you a better idea:

  • Blanket insulation. This is the most common type that comes in rolls of rock, glass or mineral fibre ( or foil-backed felt ). It normally the most affordable and also a good all-purpose insulation which is easy to fit although not suitable for the roof.
  • Loose-fill insulation. This type of insulation features a loose, lightweight material such as cork granules, cellulose fibre, mineral wool etc. It can either be incorporated as a top up or on its own. The primary drawback is it isn’t very secure and can also be very messy.
  • Sheet insulation. This is the best solution for the roof’s underside as it offers a highly effective insulation for your loft space and can also be decorated over. The drawback here is that it’s usually the most expensive type to purchase and install.
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.

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.

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.
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.

Which type of insulation is best?

The best type of insulation for your property will depend on the type of walls and any insulation that’s already present. It’s usually a good idea to have some form of wall insulation as well as loft insulation, as this helps to prevent heat loss in both areas.

Will insulation save me money on my energy bills?

This depends on the amount of insulation already present in your property. However, adding insulation has been proven to improve the energy efficiency of your home and decrease your heating bills, this is more obvious in older properties or where single glazing is still in situ.

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 Caernarfon.

Pick the right pro for you

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

Are you a Insulation Installer in Caernarfon?

View our open Insulation Installer jobs near you

Join today
View Shortlist