EWS1 Form & External Wall Advice London for Flats, Leaseholders & Managing Agents

EWS1 (the External Wall System form) is an industry process introduced to help mortgage valuers and lenders deal with flats in multi-storey residential buildings where the external wall construction or cladding creates valuation uncertainty. A suitably qualified professional assesses the external wall and records an outcome on a standard form so a valuation can proceed. It is a lender and valuation-facing process: a way to communicate that an assessment has been done, not the assessment itself and not a building safety approval.

No. EWS1 supports lender and valuer enquiries about external wall systems. RICS describes it as a way for a building owner to confirm that an external wall system has been assessed by a suitable expert. EWS1 is not a life-safety certificate, not a general building fire safety certificate, and it does not replace the statutory fire risk assessment or the duties of the responsible person or accountable person. Treating it as a safety sign-off is a common and serious misunderstanding.

In simple terms, A ratings indicate the external wall is unlikely to support significant fire spread, with A1 and A2 reflecting different construction and evidence positions, and A3 indicating remediation may be needed despite a relatively low risk. B1 indicates the fire risk is sufficiently low that no remedial works are required. B2 indicates that remedial works are required to the external wall. The right interpretation always depends on the specific assessment evidence and the building, which is why the outcome needs explaining rather than reading the letter alone.

No. EWS1 is not a legal requirement and is not needed for every building. Whether it is requested depends on the building height and construction, the external wall and cladding, the lender's policy and the valuation context. Government and industry guidance has, over time, reduced the circumstances in which lenders should ask for one. We help establish whether one is genuinely needed before any work is commissioned.

An EWS1 form must be completed by a professional who is competent for the specific building and the assessment type, and who carries appropriate professional indemnity insurance for external wall work. Competence and insurance are building-specific, not generic. We are explicit about scope and competence, and where the building requires input beyond our appointment we coordinate competent specialists rather than over-reaching.

An EWS1 form is generally valid for five years for the building it assessed, provided there is no material change to the external wall. It can be relied on by any party for that building during that period, which is why a building-level EWS1, rather than a flat-by-flat approach, is usually the efficient route for a block. A material change or remediation can require reassessment.

No, and the distinction matters. PAS 9980 is the code of practice and a FRAEW is the Fire Risk Appraisal of External Walls carried out under it — the substantive technical assessment of external wall fire risk. EWS1 is the lender-facing form that can communicate the outcome of that assessment for valuation purposes. The FRAEW is the professional work; the EWS1 is the summary communication. An EWS1 is only as good as the FRAEW or assessment behind it.

B2 indicates that remedial works are required to the external wall. It does not by itself tell you the scope, cost or urgency of those works — that comes from the underlying FRAEW evidence and further investigation. A B2 can stall sales and remortgages, so the priority is usually to understand the evidence, the remediation route and any funding options rather than to react to the letter alone. We help interpret the position and plan the next step.

Yes. After a B1 we can help confirm the position and communicate it to lenders and leaseholders. After a B2 we can review the underlying evidence, advise on the remediation route, and link the building into cladding remediation and Cladding Safety Scheme or Building Safety Fund support where eligible. The aim is to move the building forward on an evidenced basis, not just to hold a form.

No. No competent professional can guarantee a particular EWS1 rating or outcome — the outcome reflects the building's actual construction, materials and condition and the evidence available. We can confirm scope and competence and give a clear, honest assessment of the likely position; we will not promise a rating to win an instruction, and we are cautious about any provider who does.

Yes. Managing agents, freeholders, RMCs and RTM companies often field repeated leaseholder and lender EWS1 requests for a block. We review the building's external wall evidence, advise whether a building-level FRAEW and EWS1 route is appropriate, and provide the plain-English communication agents and boards need to manage leaseholder expectations consistently across the block.

Yes. If your flat sale or remortgage has stalled on an EWS1 request, we can review what the lender has asked for, explain the building's position and the realistic routes forward, and advise whether the responsibility and the right instruction sit with you, the freeholder or the managing agent. Early, clear advice often prevents an individual leaseholder commissioning work that should be handled at building level.

An EWS1 assesses the whole building, so it is usually commissioned at building level by the freeholder, resident management company or managing agent rather than by an individual leaseholder. Whether the cost can be recovered through the service charge depends on the lease and on current leaseholder-protection rules, which is a matter for advice on the specific lease. Because one building-level form covers every flat, an individual leaseholder paying for a standalone assessment is often unnecessary; we usually advise checking the building's position and who should instruct before anyone commissions work.