Planning to renovate or open up your living space? A Rolled Steel Joist (RSJ) is often required for supporting walls when creating open-plan rooms.
However, before installing an RSJ, you may need to comply with the Party Wall Act.
This guide explains the rules, the process,
and how a local party wall surveyor can help you avoid delays.
If the RSJ touches or is supported by a party wall shared with your neighbour, then a Party Wall Agreement is required. It protects both homeowners by ensuring the work is safe and adequately documented.
How much does a Party Wall Agreement cost when installing an RSJ?
Costs vary depending on the complexity of the work and the number of surveyors involved. On average, fees range from £700 to £1,500. If both neighbours appoint their own surveyor, costs will usually be higher.
How long does a Party Wall Agreement take?
From serving the initial notice to having an agreement in place, it can take anywhere from 2 to 8 weeks, depending on how quickly neighbours respond.
Who pays for the Party Wall Agreement when installing an RSJ?
The building owner (the person carrying out the work) is responsible for paying all reasonable surveyor fees and agreement costs.
How much notice must I give before installing an RSJ?
You must serve a Party Wall Notice at least 2 months before work begins if the RSJ affects a shared wall. It gives your neighbour enough time to respond.
If you’re planning to install an RSJ as part of your renovation, our local surveyor service can guide you through the Party Wall process and help you avoid costly mistakes.
👉 Call us today for advice on RSJ installations and Party Wall Agreements.
Seeking expert advice before installing an RSJ ensures safety, legal compliance, structural integrity, and avoids costly mistakes or neighbour disputes.
Need advice before you install an RSJ?
Contact Jason Edworthy, your local party wall surveyor, for a free consultation today.
Installing an RSJ FAQS
Do I need a Party Wall Agreement to install an RSJ?
Yes. If a shared party wall supports the RSJ, the Party Wall Act requires you to serve notice and obtain an agreement before starting work.
How much notice do I need to give before installing an RSJ?
You must give your neighbour at least two months’ notice before beginning any work that affects a party wall.
Can I serve a Party Wall Notice myself?
Yes, but most homeowners appoint a party wall surveyor to ensure the notice is valid and to avoid disputes.
What happens if my neighbour refuses consent for the RSJ installation?
If your neighbour dissents, both parties appoint surveyors who will prepare a Party Wall Award that sets out the terms of the work.
Who pays for the Party Wall Agreement when installing an RSJ?
In most cases, the homeowner carrying out the work (the building owner) is responsible for surveyor fees and agreement costs.
If you’re planning to install an RSJ as part of your renovation, don’t leave it to chance. Our team specialises in Party Wall Agreements for RSJ installations and other structural projects.
📞 Call Jason Edworthy Party Wall Surveyors today for expert advice and a free initial consultation.