Insulation info – Advice on insulating walls, floors and roofs
By insulating your house, your energy consumption will drop significantly. This entails both financial and ecological advantages. On this website, you can find advice and prices of insulation services and materials. Receive free and non-binding quotes for insulation services on the quotation page.
Types of insulation work
By carrying out insulation work, the EPC value of your house will strongly improve. Moreover, you can earn back the investment quite fast thanks to insulation grants. Below, we discuss the main parts of the house where insulation really matters:
① Insulate roof
Insulating a roof is possible on both the inside or outside. In case of insulation along the outside, the roof covering will have to be replaced. The insulation method also depends on the roof type (pitched or flat roof).
If the space beneath the roof does not serve as a living space, it is actually better to insulate the floor of the attic. The volume covered by insulation will be smaller this way, so you will be able to heat more efficiently.
② Wall insulation
You can also limit heat losses with wall insulation. Insulating a wall is possible in three ways: on the inside, on the outside or through the cavity wall.
Wall insulation along the outside is quite expensive, as the facade will require a new finishing layer as well. Insulating a cavity wall is much cheaper and you won’t lose any living space either. One does not often apply wall insulation on the inside of the house: this is a delicate job that leads to a loss of space inside the room.
③ Insulate floor or ceiling
It is only possible to insulate a floor from the bottom if there is a room underneath (like a cellar). Floor insulation from above requires more demolition work. Moreover, one should mind pipelines. These might get damaged if you’re not careful. Next, a new finishing layer will be installed.
Sound insulation is especially a main concern in the case of floors and ceilings that are situated between two storeys. With sound insulation, you can block sounds from the outside and preserve sounds on the inside.
Which insulation material to use?
Obviously, there are many types of insulation materials. Think for example of glass wool, PIR boards or polyurethane foam (PUR). Which material suits your situation best, depends on your budget and the type of insulation job.
We can sort out the insulation types in different ways. It is possible to classify them according to their appearance: insulation batts (glass wool, rock wool,…), insulation boards (PIR, PUR,…), insulation spray (PUR foam) and blow-in insulation (cellulose,…). Another partition method is the purpose of the insulation work. A distinction can be made here between thermal insulation, sound insulation and acoustic insulation.
Which factors determine the price of insulation services?
Insulation should be considered as a true investment: by insulating your house, the energy use will drop and you will be able to save a lot of money on the long run. The return-on-investment time depends, among others, on the energy savings and the costs of the insulation work. The price of this job will be determined by several factors:
- Insulation method: the price of insulation work depends on what you want to insulate and how this happens (for example roof insulation on the in- or outside). Demolition work may be required as well, for example when you want to insulate an existing floor (from above).
- Surface: In general, the price per square metre will be lower when a large surface needs to be provided with insulation.
- (Thickness of) the insulation material: prices can strongly vary according to the different types of insulation material. The costs will depend on the insulation value and the thickness of the chosen material. If a material has a very good insulation value, a thinner insulation layer can be used.
- Finishing: after the insulation has been applied, it may sometimes be necessary to provide a new finishing layer (for example in the case of external wall insulation).
- Grants: you can earn back part of the insulation costs thanks to insulation grants.
- The insulation expert: obviously, prices may vary depending on the insulation expert you choose. For this reason, it is recommended to request quotes from several professionals. This way, you can compare prices and choose the most interesting offer.
Via our quote service, you can request customised and non-binding from insulation specialists for free. Click here to receive prices for your insulation project.
Earn back the investment faster with grants
Thanks to several insulation grants, you can strongly reduce the return-on-investment time. Grants are paid, for example, for roof -, wall- and floor insulation. Obviously, there are some conditions that should be met in order to qualify for these grants. These conditions have to do with the house, the insulation material and the bills.
Why is insulating a good idea?
- Lower energy bill: by installing insulation material, warmth will stay in the house much longer. As a result of this, heating costs will drop. You can save a hundreds of pounds on your annual energy bill. It is even possible to recover your investment within just two years time.
- Improved living comfort: as warmth can be preserved better, the living comfort will be more enjoyable when it is cold outside. On the other hand, the house will also remain cooler if it is hot outside. Many insulation materials also offer sound insulation, so you won’t be really bothered by sounds from outside any longer. After the insulation has been installed, it is important to keep on ventilating the house sufficiently. Otherwise, damp problems might pop up.
- Environmentally friendly: the reduced energy consumption is an ecological advantage of insulation. However, some insulation materials are considered to be polluting, but there are some ecological alternatives. These materials consist of natural products or recycled waste.
- Sometimes obligatory: maximum criteria of heat permeability apply for new-build projects.
- Favourable for EPC: if you sell your house in the future, the presence of insulation will positively influence your EPC score. A good EPC score makes your house attractive to potential buyers.