Roof Leak Detection & Tracing in Reading
Professional Roof Leak Detection You Can Rely On
Professional Roof Leak Detection & Tracing Services
Roof leaks are rarely where the water appears. In many cases, moisture enters a roof system at one point, travels along timbers, membranes, or insulation, and only becomes visible days or weeks later inside the property.
Expert Roof Leak Detection Focused on Finding the True Cause
CRS Roofing provides professional roof leak detection and tracing across Reading and surrounding Berkshire areas. With more than 15 years of hands-on roofing experience, we identify the true source of leaks on pitched and flat roofs and deliver clear, repair-ready solutions that stop repeat damage.
If your roof is leaking after heavy rain, storms, or prolonged damp weather and you cannot identify the cause, our diagnostic-first approach ensures the problem is fixed properly, not patched temporarily.
How Professional Roof Leak Detection Works
Effective roof leak detection is a process, not guesswork.
Our inspections focus on tracing how water enters and migrates through the roof structure. This includes:
External inspection of tiles, slates, membranes, ridges, valleys, flashings, and roof penetrations
Internal loft and ceiling checks to identify moisture paths and secondary damage
Flat roof outlet, upstand, seam, and fall assessments
Junction analysis at chimneys, parapets, rooflights, and abutments
Drainage and gutter flow inspection to rule out overflow-related ingress
Where required, we use drone surveys and targeted moisture detection tools to inspect inaccessible areas without unnecessary disturbance.
The result is a precise diagnosis of the leak source, supported by photographic evidence and a clear repair strategy.
Why Choose CRS Roofing for Leak Detection
Diagnostic-first approach focused on root cause
We do not chase visible water damage. Every inspection is structured to trace the true entry point of moisture through tiles, membranes, flashings, or roof junctions. This prevents repeat leaks and wasted repair work.
Over 15 years of roofing experience
Our leak detection is backed by hands-on experience across thousands of pitched and flat roofs in Berkshire. We understand how different materials fail over time and how water migrates through real roof structures.
Specialists in pitched and flat roof systems
From slate and tiled roofs to EPDM rubber, GRP fibreglass, and felt flat roofs, our team applies system-specific inspection methods to ensure accurate diagnosis and technically correct repairs.
Fully insured and qualified roofers
All inspections and repair recommendations are carried out by trained, insured roofing professionals working to current UK safety and roofing standards. Your property is protected at every stage.
Trusted Across the Region
With over 300 five-star reviews, customers come back to us for one reason: we’re reliable, transparent, and we do the job properly.
Flat Roof Leak Detection for EPDM, GRP and Felt Systems
Flat roofs require specialist leak tracing due to their layered construction. Common flat roof failure points include:
Blocked or undersized outlets
When outlets cannot discharge water efficiently, rainwater backs up across the roof surface, increasing the risk of leaks at seams, penetrations, and perimeter details.
Poor falls causing standing water
Insufficient roof falls allow water to pond after rainfall, accelerating membrane breakdown and increasing stress on joints and fixings.
Failed seams or laps
Seams that have split, lifted, or degraded allow water to track beneath the membrane, often travelling away from the visible entry point before appearing internally.
Deteriorated felt systems
Older felt roofs can crack, blister, or delaminate over time, particularly under UV exposure and repeated thermal movement.
Improperly detailed upstands and edge trims
Weak detailing at upstands, parapets, and edges creates vulnerable junctions where wind driven rain can bypass the waterproof layer.
Condensation caused by missing vapour control layers
Without a vapour control layer, warm internal air condenses within the roof build-up, leading to trapped moisture that mimics or worsens leak symptoms.
What to Expect When You Work With Us
Areas We Cover for Roof Leak Detection
CRS Roofing provides professional roof leak detection and tracing services across Reading, Tilehurst, Caversham, Woodley, Earley, Wokingham, Bracknell, Maidenhead, Windsor, Newbury, and Theale.
Our local Reading roofing specialists understand how different property types and roof structures behave across Berkshire and the Thames Valley, allowing us to trace leaks accurately and recommend the correct repair first time.
Each inspection is carried out with local building styles, weather exposure, and drainage challenges in mind, ensuring reliable results and long-term protection for homes and commercial properties throughout the region.
Frequently Asked Questions (FAQs)
How do roofers accurately trace the source of a roof leak?
Professional roof leak tracing combines visual inspection, moisture meters, and targeted testing to identify the true point of water entry. Water often travels inside the roof structure before becoming visible, so the internal leak location is rarely the source. Accurate tracing prevents unnecessary repairs and repeat leaks.
Can a roof leak be caused by condensation rather than rainwater?
Yes. Many apparent roof leaks are caused by condensation within the roof build-up due to poor ventilation or missing vapour control layers. This is common in flat roofs and loft spaces. A professional inspection distinguishes between condensation and rain ingress before any repairs are recommended.
Why do some roof leaks only appear days after heavy rainfall?
Delayed leaks occur when water enters the roof system and becomes trapped in insulation, decking, or timbers before reaching internal ceilings. This is common with flat roofs, chimneys, and flashing failures. Leak tracing focuses on identifying where water enters, not just where it appears.
Do insurers accept professional roof inspection and leak detection reports?
Yes. Insurers typically require clear evidence showing the cause of damage, the affected area, and whether the issue was sudden or gradual. A professional leak detection report with photographs, findings, and repair recommendations supports faster insurance assessments and claim decisions.
Is it better to repair a roof leak or replace the roof entirely?
In most cases, targeted repair is sufficient when the leak source is accurately identified. Full replacement is only recommended when the roofing system has reached the end of its service life or shows widespread failure. A diagnostic-first approach ensures repairs are technically justified and cost-effective.
What Our Customers Say !
Great service and professional job.’
Jack M.
Polite, friendly, professional, and reliable. Great timekeeping too. I’ddefinitely usethem again if needed.
Sarah M.
Prompt and cheerful service. All work discussed and completed exactly as agreed and as per estimate.
Stephen K.
Very good and clean work, quick, efficient, and very knowledgeablegroup of workmen. Also,very pleasantand friendly. Would highly recommend.
Matthew A.
Book a Professional Roof Leak Inspection
Roof leaks do not resolve themselves. The longer moisture is allowed to enter a roof structure, the greater the risk of timber rot, mould, insulation failure, and internal damage. With over 300 5-star Google reviews, we are the roofing team you can trust!
CRS Roofing delivers accurate roof leak detection, honest advice, and long-lasting repairs backed by experience and evidence.
Book a professional roof leak inspection today and stop the damage before it spreads.
Request a free site visit and quote now.