Commercial Roof Surveys​
Maguire Brothers provide independent commercial roof surveys across London and the Southeast. Building surveyors, facilities managers and property owners get a clear, unbiased picture of their roof’s condition and what needs to happen next.
As a specialist commercial roofing contractor rather than a manufacturer, we are not tied to any particular system or product range. Our surveys and reports are genuinely independent. We tell you what is right for your building, not what suits a sales target. This includes industrial roof surveys across manufacturing, warehouse and distribution sites, as well as commercial flat and pitched roofs. Every report includes our terms of reference, a detailed site survey, clear recommendations, and a fully priced specification.
We have over 45 years of experience in commercial roof surveys
We work across all building types and sectors: schools, hospitals, local authority estates, industrial facilities, heritage buildings and large residential blocks. Once appointed to carry out the works following a survey, we already have an in-depth knowledge of the building and site conditions, saving time and cost from day one.
For more on what to expect during the process, see our guide to what a roof inspection involves.
ABOUT OUR SURVEYS
Ready to Get Started? Talk to Our Team Today
Book a roof survey today and benefit from clear reporting, expert advice, and buildable solutions that minimise disruption and maximise value.
What’s Included in Our Roof Surveys?
Terms of Reference
An outline of the survey scope, objectives, and methodology.
Survey Findings
A detailed summary of the existing roof condition based on our on-site assessment.
Observations
Practical, buildable solutions tailored to the specific requirements of the building.
Priced Specification
A clear, itemised breakdown of proposed works and associated costs.
Appendix
Includes a fully referenced photographic survey and any relevant technical documentation to support our findings.
Advanced inspection methods for accurate assessments
At Maguire Brothers, we use the latest inspection technology alongside traditional access methods to deliver accurate, thorough commercial roof surveys with minimal disruption to your building.
Our survey techniques include:
- Drone and aerial surveys - safe, high-resolution inspection of hard-to-reach areas without the need for scaffolding or access equipment
- Core sampling - establishing the existing roof build-up, deck type and moisture content with precision
- Moisture scanning - identifying trapped water beneath the surface before it causes structural damage
- Thermal imaging - detecting hidden moisture, insulation failures and heat loss that visual inspection alone would miss
These methods give us a complete picture of your roof’s condition – not just what is visible on the surface.
Contact Maguire Brothers
Our commercial roof surveys give you everything you need to make a fully independent decision: a clear condition report, honest recommendations, and a priced specification ready to take to tender.
To arrange a survey, get in touch with our team. We will talk through your requirements, agree a convenient time and carry out the survey with minimal disruption to your building.
Frequently Asked Questions
What issues do your commercial roof surveys typically identify?
Our surveys commonly identify water ingress, failed or deteriorated roof coverings, defective flashings, inadequate drainage, thermal inefficiencies, and signs of structural movement. We also assess insulation condition, upstands, rooflights, and detailing around penetrations. Every finding is documented with photographic evidence and set out clearly in the written report – giving you the information you need to make decisions about repair, maintenance or replacement.
How much does a commercial roof survey cost?
In most cases we provide commercial roof surveys free of charge, particularly where the building owner or surveyor is considering commissioning refurbishment or replacement works. For specialist surveys involving thermal imaging or detailed drone inspection, additional charges may apply. We will always confirm costs clearly before visiting. Contact us to discuss your requirements.
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How long does a commercial roof survey take?
Most commercial roof surveys can be completed within half a day, though larger or more complex sites with multiple roof areas, restricted access or extensive plant will take longer. We plan all surveys to minimise disruption to your building’s day-to-day operations and will agree a convenient time with you in advance.
Do you offer training or CPD support for surveyors?
Yes. We provide free CPD seminars designed specifically for building surveyors and roofing professionals, covering a wide range of commercial roofing topics. All seminars are accredited and can be delivered at your offices. For more information visit our CPD page.