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Party wall insulation is an insulation material designed to be installed between semi-detached or terraced properties. The gap in the wall between you and your neighbour’s property is called a party wall. When a party wall is insulated, it prevents cold air from moving up and down the side of the house, which causes heat loss. Around 5 million homes could benefit from party wall insulation. At Trade Insulations, we offer our very best prices on party wall insulation.

125mm Isover RD Party Wall Insulation – 4.55m2 Roll

£41.99 ex VAT

150mm Isover RD Party Wall Insulation 3.64m2 Roll

£39.99 ex VAT

Knauf Masonry Party Wall Slab

£1,100.00 ex VAT

75mm Isover RD Party Wall Insulation – 7.74m2 Roll

£41.90 ex VAT

100mm Isover RD Party Wall Insulation – 5.46m2 Roll

£37.90 ex VAT
Knauf Masonry Party Wall Slab

Knauf Masonry Party Wall Slab – 100mm – 131m2 pallet

£1,320.00 ex VAT
Knauf Masonry Party Wall Slab

Knauf Masonry Party Wall Slab – 75mm – 174.8m2 pallet

£1,320.00 ex VAT

What is a party wall?

In the UK, a party wall refers to a shared wall, fence, or structure that separates two adjoining properties or land belonging to different owners. Party walls are common in residential areas, especially in urban settings where properties are built in close proximity to one another.

Party walls are jointly owned by the owners of the adjacent properties. Each owner has a legal right to use and maintain the wall. They provide benefit to both properties by dividing the space between them, supporting the structural integrity of each building, and preventing potential disputes over property boundaries.

The Party Wall etc. Act 1996 is a UK law that governs party wall matters. It outlines the rights and responsibilities of property owners when it comes to party walls, including procedures for carrying out works that might affect the wall, such as renovations, repairs, or extensions.
Party walls play a crucial role in maintaining harmonious relationships between neighbouring property owners and ensuring that any works carried out do not negatively impact the structural integrity or enjoyment of the adjoining properties. The Party Wall Act provides a clear framework for handling party wall matters in a fair and transparent manner. Party wall insulation consists of party wall insulation roll products.

If the property has cavity walls, then the party wall may also have a cavity. Sometimes these cavities are sealed which prevents air flowing through them and heat loss however if your party wall cavity has vents connecting to the outside air, then cold air will flow into the cavity taking heat from all the adjoining rooms and drawing it up into the loft space.

How is party wall insulation installed?

Always call a specialist to install your party wall insulation to prevent problems occurring in the future or damages being made to the property.
Cavity party walls are insulated by drilling a hole in the relevant walls and then injecting mineral wool, polystyrene beads, or other types of insulation materials into the cavity.
The drill hole is then filled, and the wall is refinished to match the rest of the wall.
Party wall insulation is provided by several brands including Rockwool, Isover and Knauf, and others.

Cheap Party Wall Insulation

Party wall insulation will make your home warmer and provide a more comfortable environment. It will save you up to £90 per year on your energy bills and make your home more energy-efficient by reducing the carbon footprint. It can also reduce the sound levels caused by neighbouring properties. It will not cause too much disruption in your home to install as no scaffolding is needed and the insulation is injected into the walls as opposed to dismantling the walls.
Funded energy-efficient opportunities are now available for millions of homes in the UK. You can see if you qualify for fully funded party wall insulation online today. As well as this, if you have party wall insulation installed and you have an old or inefficient boiler you may also qualify for an upgrade on your boiler for free!
A party wall agreement may be needed when installing building works that is connected to another property. The affected neighbours must be informed and provided with a party wall notice; a party wall agreement should be made in writing by you.

Masonry Party Wall Slab is an insulation slab made up of glass mineral wool designed for use in masonry separating party walls. It offers great thermal quality and acoustic performance. It is moisture resistance, rot-proof and odourless. This product is lightweight and easy to cut, handle and install. This product is 1200mm by 455mm and is available in thicknesses 75mm and 100mm. It is non-combustible insulation with the best possible Euroclass A1 reaction to fire classification and is manufactured using Knauf Insulation's unique bio-based binder, ECOSE® Technology.

Separating Wall Insulation

At Trade Insulations, we boast many separating wall insulation products. Knauf's Masonry Party Wall Slab is a full-fill built in solution that is highly popular. The slabs can be placed snugly between the inner and outer layers of the wall. These slabs can then be secured by wall ties and are non combustible.

The purpose of separating wall insulation is twofold: first, to counteract heat loss through convection by completely filling the cavity and preventing an inadvertent chimney-like effect; second, to minimise sound transmission between adjacent living spaces.

What are the benefits of having a party wall?

Having a party wall offers several benefits, including:

  • Structural Support: Party walls provide structural stability to buildings by separating adjoining properties. They help distribute loads and resist lateral forces, contributing to the overall stability of the structures.
  • Sound Insulation: Party walls help reduce noise transmission between adjacent units or properties. This is especially valuable in multi-unit dwellings, as it enhances privacy and minimises disturbances caused by sound.
  • Fire Protection: Party walls act as fire barriers, preventing the spread of fire from one property to another. This adds an extra layer of safety and protection for occupants in case of a fire incident.
  • Thermal Insulation: A well-insulated party wall can contribute to better energy efficiency in buildings. It helps prevent heat loss and keeps indoor spaces comfortable, which can lead to reduced energy consumption and lower utility bills.
  • Legal Clarity: Clearly defined party walls can help avoid disputes between neighbours regarding property boundaries, shared responsibilities, and potential issues arising from construction or alterations.
  • Property Value: Properties with properly constructed and insulated party walls can be more attractive to potential buyers or renters. The enhanced privacy, noise reduction, and safety features can make a property more desirable.
  • Privacy: Party walls offer separation between living spaces, enhancing privacy and reducing the chances of unwanted intrusion from neighbouring units.
  • Regulatory Compliance: The construction of party walls in certain types of buildings can help ensure safety, fire protection, and proper structural integrity.
  • Flexibility in Design: Party walls provide a clear boundary between properties, allowing for more design options and customisation within individual units.
  • Cost Sharing: In some cases, the cost of constructing and maintaining a party wall can be shared between property owners, potentially reducing the financial burden on each party.