Building Surveys

External Defect Investigation London

Technical surveys of building facades, roofs and high-level areas to identify defects before they cause costly internal damage.

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Our Approach

A Survey-Led Approach to Building Defects

External defect investigation provides a comprehensive assessment of your building's external envelope. Rather than responding to individual symptoms as they appear, this approach identifies all current and developing defects in a single survey, allowing you to plan maintenance strategically.

Many building defects are invisible from ground level. High-level pointing failures, hidden gutter blockages, roof covering displacement and parapet deterioration can only be properly assessed at close range. Rope access allows thorough inspection without the cost and delay of full scaffolding where suitable.

This service is particularly valuable for property managers responsible for multiple units or larger buildings where individual tenant complaints may indicate wider issues. A single comprehensive survey can identify multiple related defects that, addressed together, prevent future problems across the building.

When visible damp appears internally, the problem is already established externally. Preventive surveys catch defects before they cause internal damage. This approach is consistently cheaper than reactive repairs because problems are addressed while small and before masonry becomes deeply saturated.

Survey Scope

What We Assess

Facade Condition

Brickwork, pointing, render and cladding assessed for deterioration, cracking and water ingress potential.

Roof Systems

Coverings, flashings, valleys and flat roofs inspected for defects, displacement and end-of-life indicators.

Rainwater Goods

Gutters, hoppers, downpipes and connections checked for blockages, leaks and structural failures.

Parapets and Copings

Parapet walls, coping stones, DPCs and mortar joints assessed for deterioration and water entry risk.

Structural Elements

Lintels, string courses, cornices and projecting elements checked for cracking, displacement or spalling.

Sealants and Junctions

Window seals, expansion joints and material junctions assessed for failure that could allow water penetration.

Deliverables

What You Receive

Photographic Report

Clear annotated photographs of every defect found, referenced to elevation drawings or descriptions so you know exactly where each issue is located.

Prioritised Schedule

Defects categorised by urgency and risk, helping you allocate budget to the items that matter most and plan a maintenance timeline.

Repair Specifications

Practical repair recommendations with indicative costs for each item, enabling informed decision-making and budgeting.

Related services: Roof Inspections Damp Source Investigation High-Level Maintenance All Landlord Services
FAQ

Frequently Asked Questions

Landlords, property managers, freeholders and managing agents who want a clear picture of their building's external condition. It is particularly useful for planning cyclical maintenance budgets or investigating recurring complaints from multiple tenants.
A traditional building survey is typically carried out from ground level and may not include close-range inspection of high-level areas. Our investigation uses rope access to inspect all external elements at close range, providing far more detail about roof-level and high-level defects that are invisible from the ground.
Yes. We can survey and repair. Minor defects can often be resolved during the same mobilisation where possible, and larger works can be quoted based on our detailed findings. This means you get accurate pricing based on close-range assessment rather than estimates from ground level.
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Need a Clear Picture of Your Building's Condition?

A comprehensive external survey lets you plan maintenance strategically. Preventive action is consistently cheaper than reactive repair.

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