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Most buildings that come to us have already had a contractor out. Sometimes two or three. The leak stops for a few weeks - then it's back.
That's because a roofer can patch what they can see. They can't tell you why water is getting in, where the waterproofing has failed, or what will happen to the structure if it's left.
Without accurate diagnostics, you're not fixing a problem - you're delaying it. Costs rise. Disruption returns. And the longer it goes on, the more damage water does to everything underneath.
We Diagnose it Properly. Once.
RAM uses specialist testing methods - dynamic leak investigation, electronic leak detection, thermal imaging, moisture mapping and more - to find the exact source of water ingress and building defects. Not an educated guess. Not a visual inspection. Evidence-led findings you can act on with confidence.
Every investigation concludes with a detailed report: what we found, how we found it, and what needs to happen next. Your team, your contractors, your insurers - everyone gets clarity.
And because we're also a RICS-regulated building consultancy, we can take you from diagnosis all the way through to specification, project management and completion. You don't need to start again with someone else.

Why Building Surveyors, Facilities Teams and Property Managers Choose RAM
Our approach is built on accuracy, evidence, and experience. As a RICS Regulated firm, we combine specialist testing methods with clear, detailed reporting to provide reliable insight – helping you understand the problem properly and take the right action to fix it, for good.

Find the Source, Not Just the Symptom
We test methodically from the lowest point up - eliminating causes one by one until we can say with certainty: this is where it's coming in, and this is why. No guesswork. No revisits.
Reports You Can Actually Use
Our findings don't just sit in a drawer. Clients use our reports as work schedules, contractor specifications, and tender documents. Clear, photographic, actionable.
One Team, From Investigation to Resolution
Testing uncovers what needs fixing. Our consultancy team can then specify the works, manage the contractor, and ensure it's done right. Fewer handoffs. Less risk of things getting lost in translation.
Specialist Testing. Full Building Consultancy.
All Under One Roof.
Most clients come to us because something is leaking. Many stay because we can handle everything that follows.
What Our Clients Have Said
The engineers who attended our site to complete the dynamic water stress test were 100% professional, very friendly and spent time to explain each test they were going to complete and how/why these were needed. I was then taken up onto the roof where they explained their findings. They cleaned up after themselves and left no mess behind. Would 100% recommend RAM Building Consultancy.
Daren Bishop, Health & Safety Manager, MNB Precision Limited
“We were recommended RAM Building Consultancy after leak repairs failed, after spending the majority of our budget on repairs we decided to get the roofing experts in. After one day of diagnostics they had found the defect, which we swiftly had fixed and are now water tight once again.”
Chris Durrant, Toshiba Tech
“I have engaged with Ram Consultancy over the past two years to carry out electronic integrity testing on some of our PVC flat roofing projects in the Greater London area. I would have no hesitation in recommending their services as they are very professional and efficient. Andrew and his team are a pleasure to deal with."
City Roofing Contractors
“We recently hired RAM Building Consultancy for a comprehensive roof condition survey, and the experience was exceptional from start to finish. Andrew Hood, the Commercial Manager, personally visited our site, ensuring a thorough understanding of our requirements. His hands-on approach and attention to detail were evident throughout the project. RAM's team demonstrated professionalism and expertise, providing us with a detailed report that was both informative and easy to understand. Their commitment to delivering high-quality service, truly reflects in their work. We highly recommend RAM Building Consultancy to anyone seeking reliable and expert advice on building diagnostics and roof surveys. Their dedication to excellence and customer satisfaction is commendable.”
Dean Robinson, Maintenance & Facilities Manager, Beaumont Road Industrial Estate, Banbury
“We've partnered with RAM Building Consultancy on several projects and they’ve consistently delivered great service. Their team is highly responsive, professional, and knowledgeable when it comes to leak detection. They always provide accurate diagnostics and clear reports that help us move forward with confidence. Reliable and efficient —highly recommended!”
Annie Clerkin, Personal Assistant, Day Associates Ltd
“I recently hired RAM for a construction project, and I couldn't be happier with the results. From the very beginning, their professionalism, communication, and attention to detail stood out. The team was punctual, respectful, and incredibly skilled. They kept me informed at every stage, handled permits and inspections smoothly, and stayed on budget without compromising quality. The craftsmanship is top- notch, and the final result exceeded my expectations. RAM combines integrity, transparency, and true expertise the work was delivered all of that and more. I highly recommend them to anyone looking for reliable, high-quality specialized work.”
Ligia De Castro, Community Works Surveyor, London Borough of Lambeth
“Always find the leaks, great service and well written reports”
Kevin Day, Director, Day Associates Ltd
“I must comment on the professionalism and courtesy shown by RAM when conducting the survey. It was excellent.”
Alun Lewis, Alexander House
“I have worked with RAM very successfully on a number of capital projects, securing in excess of £4M in a two year period, with a 90% applications success rate. The advice and support provided by the RAM team has been outstanding throughout, from initial evaluation, the tender process, the appointment of school-friendly contractors, financial forecasts, value for money and excellent project management.”
Michael Lavell, School Resource Management Adviser
“I’d first like to say thank you for carrying out the enabling works and leak detection tests. The team at the store had great things to say about your engineers and appreciated your dedication to this instruction.”
Taeya McFarlane, Graduate Building Surveyor - Building Surveying, JLL
The Steps to Your Success
Book a Free Consultation
Before we quote, we want to understand the problem properly. We'll arrange a free site visit or a Teams call - whichever works. We're not going to send you a generic proposal without knowing what we're dealing with.
We Investigate and Report
We carry out the agreed testing on site, working through each potential cause methodically. At the end, you get a detailed report: findings, evidence, photographs, and a clear recommendation of what needs to happen.
We Help You Resolve It
Whether you need a specification to go to tender, a contractor to manage, or a full project managed end to end - our team can take it from here. Or hand it back to you. Your call.
The Numbers Behind the Work
Our approach is driven by data, not assumptions. Through specialist testing and analysis, we deliver clear, evidence-based insights you can trust to make confident decisions.
658
Leaks Detected
Leaks Detected
28 +
Years of Excellence
Years of Excellence
1698 +
Valued Clients
Valued Clients
Our Latest Case Studies
Common Questions
We know you may have questions before getting started. Here, you will find simple, honest answers to help you understand how everything works and what you can expect at each stage.
What types of buildings do you work with?
We work with commercial, public sector and mixed-use buildings across the UK - including retail, education, healthcare, hospitality, industrial and office properties. If you manage or maintain a building and have a water ingress or defect issue, we can help.
We've already had contractors out and the leak keeps coming back. Can you help?
Yes - and this is one of the most common reasons clients come to us. Contractors carry out repairs based on what they can see. Our job is to find what they couldn't: the actual source of ingress, tested and evidenced. Once you know exactly what's failing and why, repairs can be targeted and lasting.
How quickly can you attend site?
In most cases we can be on site within a week or two of instruction. We do carry out a credit check and onboarding process for new clients before mobilising, so the earlier you get in touch, the sooner we can move. If it's urgent, call us - we'll do what we can.
What does a Dynamic Leak Investigation involve, and how long does it take?
A DLI is a targeted, systematic test of your building's waterproofing - working from the lowest point upwards to eliminate causes methodically. A typical investigation takes one day with two engineers on site. You'll receive a full report with photographic evidence, findings, and remedial recommendations.
Do you only investigate roof leaks?
Water ingress is our most common instruction, but we also carry out building condition surveys, structural surveys, drone surveys, thermal imaging, moisture mapping, endoscopic surveys and more. If you're not sure what you need, tell us what's happening and we'll advise.
Can you manage the repair works as well, or just the investigation?
Both. We can provide an investigation report for you to take to your own contractors, or we can specify the works, manage the tender, and oversee the project from start to finish. Many clients find it easier to keep it with us - particularly for complex or multi-phase projects.
Something leaking? Had repairs done that haven't held?
Speak to our team. We'll ask a few questions, understand the problem, and tell you straight whether we're the right people to help.
No obligation. No vague quotes. Just a clear conversation.









