Party Wall Insulation

Insulation is sometimes installed close to a party wall, for reasons of soundproofing, particularly having regard to the use of the room concerned, and the use of the room next door.

It is sensible to have a specialist consider the source of the noise, and how it is being transferred, before any soundproofing works are carried out. Noise can come ‘through’ a wall, roof or floor structure, with the structure itself assisting in the transfer of noise.

Noise or sound can also be airborne, like music from a speaker being heard across a room.

In some cases, in order to be effective, party wall insulation isn’t fixed into the party wall. It is placed adjacent to the wall, and a structure built to obscure it.

It is not therefore always the case that the provision of party wall installation is ‘notifiable’ under the Act, this will depend on the design of the proposed works.

If, in installing the installation, the party wall needs to be cut into, or repaired, then a Notice will need to be served, and the Adjoining Owner(s) given the opportunity to respond to the Notice.

At Harding Chartered Surveyors, we’re a team of independent and impartial RICS surveyors that can carry out party wall matters. If you have any questions or need advice don’t hesitate to call us on 020 7736 2383.

Party Wall Insulation
Written & Reviewed by Jeremy Goldney
Party Wall and Boundary Surveyor · MFPWS MPTS
Last reviewed: September 2026

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I contacted Handing Chartered Surveyors to undertake a Level 2 RICS survey for a help to buy redemption in Southall, following issues with the paperwork produced by a large online competitor, resulting in the original valuation document being rejected. On contacting Harding I set out my needs along with the issues faced previously, and Harding were very quick to respond, as well as to confirm they were happy to be flexible if there were issues with the process after the valuation report was produced. Jessica from the team visited and undertook the survey following a discussion about my specific situation and needs, as well as discussing the process and next steps. She was kind, courteous and communicative throughout, calling to discuss the valuation prior to it being finalised and issued. Help to Buy subsequently accepted the valuation with no issues at all, a success! While it is sometimes cheaper and quicker to go with a large provider, it is also very difficult to discuss case specifics, and to address any challenges. I am personally very grateful for the service I received, a strong reminder to go local to get what you need, and I will very happily employ Harding again for any future survey needs.
Alexander N.
Harding Surveyors are very prompt, professional and helpful. Their reports are detailed and very clear. They have saved me from major property headaches that I couldn’t see myself.
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Joe M.
Very straighforward process, excellent support from staff
Judy G.
Alaa came when Hardings said he would, looked at everything, explained as he was going along, explained what he thought the issues were as he surveyed, took time to talk to our neighbour who is also affected by the subsidence, sent report when promised and then has been very available to explain what might happen next and why. Great service.
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Lee R.
Delivered ahead of time and in agreed scope.
Tim E.
Good service, the initial deadline was missed but the quality of work is good.
Ten P.
I have used Harding Chartered Surveyors three times in the last 2 years to carry out valuations of properties. I found them to be efficient and good value. Kate always got back to me quickly and I was also able to communicate directly with the surveyor. Their final reports were polished and professional. I can recommend.
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