Underinsurance starts with the wrong figure.
Tenant fitout, specialist plant and non-standard construction make commercial rebuild costs uniquely complex - and uniquely easy to understate. A RICS assessment is the only defensible way to establish the correct sum insured.
Why commercial rebuild is so complex to get right.
Commercial buildings carry hidden cost layers that generic tools ignore entirely. Three drivers account for the majority of commercial underinsurance in the UK.
Tenant Fitout
Category A and B fitout is often excluded from building schedules but must be reinstated.
Specialist Plant
HVAC, lifts, substations and process equipment carry replacement values no index can capture alone.
M&E Services
Mechanical and electrical infrastructure routinely represents 20-40% of rebuild cost.
Why commercial rebuild is so complex to get right.
Commercial buildings carry hidden cost layers that generic tools ignore entirely. Three drivers account for the majority of commercial underinsurance in the UK:
Tenant fitout
Category A and B fitout installed by tenants is often excluded from building schedules but must be reinstated - adding substantial cost.
Specialist plant
HVAC, lifts, substations and process equipment carry high replacement values that no index can capture without a site assessment.
M&E services
Mechanical and electrical infrastructure in offices, retail and industrial buildings routinely represents 20–40% of rebuild cost.
How approaches compare
Online calculators
Miss fitout, plant and M&E - wrong for most commercial properties.
Index-linking alone
If the base figure was wrong, index-linking compounds the error.
Old or inherited valuations
Build costs rose 30%+ since 2020 - pre-pandemic figures mislead.
RICS Rebuild Cost Assessment
Captures all cost layers. Accepted by all UK insurers. PI-insured and defensible.
Own multiple commercial properties? See our portfolio assessment service ?
Property Types We Assess
Every commercial property type, covered.
From single-tenant industrial units to multi-let city centre offices, our RICS-regulated assessors have the sector knowledge to establish an accurate rebuild cost - whatever the asset class.
Mixed-use developments are assessed under a single instruction, with the output separated by use class so your insurer has clean, compliant figures for each element.
Specialist assessments for specialist buildings.
Tenant Fitout Captured
We identify and value Category A and B fitout installed by occupying tenants - a cost layer that online tools and index-linked valuations routinely miss entirely.
Learn moreListed Commercial
Grade I, Grade II* and Grade II commercial buildings assessed by surveyors experienced in historic fabric, specialist materials and Heritage England compliance.
Learn moreMixed-Use Assessment
A single instruction covers the entire development. Output is separated by use class - residential and commercial figures presented cleanly for your insurer.
Learn moreThe trusted choice for homeowners.
RICS Regulated
Every assessment is carried out by or under the supervision of a RICS-registered member.
Fully Insured
Every instruction is covered by comprehensive professional indemnity insurance for your protection.
24-Hour Response
We respond to every enquiry within 24 hours and deliver on the timescales we agree.
Insurer-Ready Report
A clear, defensible figure accepted by every UK insurer and broker, without amendment.
Related services
Our Services
Desktop, on-site and 3-Year Protection Plan: pick the assessment that fits your property.
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Blocks of Flats
Specialist assessments protecting every leaseholder in a shared building from the average clause.
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Managing Agents
Discharge your compliance obligation and protect your PI file with a defensible valuation.
Learn morearrow_forwardCommon questions.
Direct answers to the most common questions about commercial Rebuild Cost Assessments.