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External Wall Assessments

EWS1 Surveys & Certificates

EWS1 External Wall System fire review surveys for residential buildings. Required by mortgage lenders before lending on properties in buildings with external wall safety concerns. Carried out under PAS 9980:2022.

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Turnaround7 to 14 working days
Response1 to 2 working days
CoverageLondon & UK wide
PI insuranceUp to £5M
4,000+
Projects Delivered
30+ yrs
Collective Experience
7-14
Working Day Turnaround
UK Wide
Coverage
Chartered
Independent Practice
up to £5M
Professional Indemnity
What Is an EWS1 Certificate?

The certificate mortgage lenders require before lending on affected residential properties

An EWS1 — External Wall System fire review — certificate is produced by a chartered fire engineer following a FRAEW under PAS 9980:2022. It records the assessment of the fire risk from the building's external wall system.

The EWS1 form was introduced in 2019 and categorises buildings into pathways based on whether combustible materials are present and whether remediation is required.

EWS1 certificates have been required for tens of thousands of residential buildings, affecting leaseholders' ability to sell, remortgage, or staircase. A correctly produced EWS1 from a competent chartered engineer is the key to unlocking those transactions.

Certificate Type
External Wall System Fire Review
Records the FRAEW assessment outcome and external wall fire risk category.
Assessment Standard
PAS 9980:2022
Every EWS1 must be underpinned by a FRAEW conducted under PAS 9980.
Required By
Mortgage Lenders & Valuers
UK Finance member banks require an EWS1 before lending on affected properties.
Related Services

You may also need

FRAEW Assessments
The FRAEW is the assessment process that every EWS1 certificate is based on.
Learn more
PAS 9980 Assessments
PAS 9980 is the standard governing how FRAEWs are carried out.
Learn more
Residential Buildings
EWS1 surveys are most commonly required for multi-storey residential blocks.
Learn more
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Common Questions

Frequently asked questions

What is an EWS1 certificate?
An External Wall System fire review certificate produced by a chartered fire engineer following a FRAEW under PAS 9980:2022. Required by mortgage lenders before lending on properties in affected residential buildings.
Which buildings need an EWS1?
Residential buildings above 11 metres or those with certain cladding, combustible insulation, or balcony construction where a lender requires fire safety confirmation.
What do the EWS1 categories mean?
Pathway A: no combustible materials present. Pathway B: combustible materials present. Category 1 (A1 or B1): no remediation required. Category 2 (A2 or B2): remediation identified as necessary.
How long does an EWS1 survey take?
Typically 7 to 14 working days from receipt of all required information. Buildings needing intrusive investigation may take longer.
Who can sign an EWS1 form?
A suitably qualified professional with relevant competence. Our engineers hold IFE membership and the qualifications to sign EWS1 forms.
Accreditations & Memberships
SSIP Accredited
SSIP Accredited
Institution of Mechanical Engineers
Institution of Mechanical Engineers
Homes England Approved
Homes England Approved
Constructionline Gold Member
Constructionline Gold Member
IIRSM
IIRSM
Institution of Fire Engineers
Institution of Fire Engineers
IOSH
IOSH
Social Value
Social Value
Fire Protection Association
Fire Protection Association
Acclaim Accreditation
Acclaim Accreditation
Safety and Reliability Society
Safety & Reliability Society
Chartered Engineer
Chartered Engineer
Fire Industry Association
Fire Industry Association
Institute of Fire Safety Managers
Institute of Fire Safety Managers
Regional Numbers
London 020 3797 3053 Birmingham 0121 401 1053 Manchester 0161 207 3053 Leeds 0113 400 1053 Glasgow 0131 215 1053
Fire Safety Services
Fire Engineering & Safety

Fire Safety Services is a chartered independent fire engineering and safety consultancy. We deliver fire strategy reports, building safety cases, EWS assessments, planning fire statements, and specialist consultancy across London and the UK. Advisory-only, conflict-free advice from engineers with over 30 years of collective experience.

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