Damp causes
Rainwater goods and drainage investigation
Investigate gutters, downpipes and drainage as causes of penetrating damp, with clear referral boundaries.
Why diagnosis matters
Treat the cause, then repair the damage
Overflowing gutters, leaking joints, blocked gullies and poor ground drainage can saturate walls. We inspect accessible evidence and coordinate the right repair route rather than masking the internal symptom.
Complimentary survey
Book Your Complimentary Survey
Over 35 years of independent expertise. Written findings included. No sales pressure. No obligation.
Book your complimentary surveyTechnical review
Dan, Director / Surveyor
Last reviewed: July 2026. Advice is general until the property, access and visible evidence have been assessed.
Guarantee & aftercare
Written guarantee terms are matched to qualifying work, with inclusions, exclusions and aftercare explained before acceptance.
What we consider
Possible causes and lookalikes
Blockages
Cracked or disconnected components
Insufficient capacity
Poor discharge and drainage
Inspection method
A clear work sequence
Step 1
Relate defects to internal symptoms
Step 2
Photograph accessible evidence
Step 3
Repair gutters, downpipes, roofing and plumbing leaks in-house
Step 4
Refer below-ground drainage excavation or CCTV surveys as needed
Scope boundaries
Honest about what the work does—and does not—cover
We repair rainwater goods, roofing and plumbing leaks in-house. Below-ground drainage excavation, CCTV drainage surveys and structural engineering are referred when a project falls outside our direct scope.
Complimentary specialist survey
Your Complimentary Specialist Survey
Backed by over 35 years of independent damp and timber expertise.
We believe in diagnosis before treatment. That's why we offer every homeowner and property manager in Dorset, Hampshire and Wiltshire a complimentary specialist survey — carried out by an experienced specialist, not a salesperson.
Over 400 combined reviews across Google and Checkatrade. Over 35 years protecting Dorset homes.
Common questions
About rainwater goods and drainage investigation
Can a blocked gully cause damp?+
Yes. Water can pond against walls or overflow repeatedly, increasing saturation and splashback.
Do you clear gutters?+
Yes. We clear and repair gutters, downpipes and rainwater goods, and carry out associated roofing work in-house. Below-ground drainage excavation is referred where needed.
Should internal plaster be repaired first?+
No. The external water source should be corrected and drying assessed first.
Is the specialist survey really free?+
Yes — completely. We offer every homeowner and property manager across Dorset, Hampshire and Wiltshire a complimentary specialist survey at no charge. This includes an on-site inspection, written findings, a clear scope of any recommended work, and an honest referral if the problem falls outside what we do. You pay nothing for the survey. You only pay if you commission the remedial work, and you are under no obligation to do so. The reason we do this is straightforward: we believe in diagnosing the problem before recommending a treatment. A proper inspection takes time, and we'd rather invest that time up front than quote a solution before we've understood the cause.
Not sure if this is your problem?
That's exactly what the survey is for. Book your complimentary specialist survey and one of our experienced team will identify the cause on-site, consider the alternatives, and give you written findings — at no charge and with no obligation.
Related services
Continue your investigation
Recent work
Photographed on our own projects
A selection of real jobs from this service, photographed on site across Dorset, Hampshire and Wiltshire.
Reviewed by local homeowners
Trusted across Dorset, Hampshire and Wiltshire
Independent feedback from customers on Google and Checkatrade — alongside over 35 years of damp proofing and plastering experience.
Next step
Claim your complimentary survey before choosing a treatment
Tell us what you can see, when it changes and where the property is. Photographs can help us triage the next step.