
Drain Unblocking
Available 24/7. We clear blocked drains, sinks, toilets and gullies on the first visit in the vast majority of cases.
Find out moreNeed a CCTV drain survey in Watford to find the cause of a recurring drain problem, or because you are buying a home?
Real person answers · fixed price agreed before we start

Book a CCTV drain survey in Watford: call 0208 387 5591
Do you need to find the real root cause of a recurring drain problem, or are you in the process of buying a new home in Watford?
Since 1986, Drain 247 has been the trusted local expert for homebuyer reports and complex diagnostic surveys. As a family-run firm headquartered right here in Watford, our reputation is built entirely on honesty. Our dedicated survey team is fully accredited and uses state-of-the-art HD camera technology to inspect every part of your drainage system. They are not just standard engineers; they are expert diagnosticians.
Following the inspection, we provide a comprehensive WRC-approved report, accepted by all insurers, detailing all findings, complete with high-resolution footage. This gives you the clear, factual answers you need to make an informed decision about your property.
Prices and what the report covers are set out on our main CCTV drain survey Hertfordshire page, including homebuyer CCTV drain survey details. If your architect needs a plan of the runs, see drain mapping. For a drain that is blocked now, see blocked drains in Watford.
Watford housing sits on Victorian laterals, 1930s clay and pitch fibre on the inter-war estates, laid in Hertfordshire clay. On a CCTV drain survey in Watford the camera typically shows displaced or open clay joints, root ingress where trees are close to the run, cracks and fractures, and pitch fibre that has deformed or blistered. Scale and fat build-up show up too, and they need a different fix from a damaged pipe.
We survey across WD17, WD18, WD19, WD24 and WD25, from Cassiobury and Nascot to Oxhey and North Watford. Surveys are from £180, with no call-out fee. Our CCTV surveys are WRC-approved and accepted by all insurers, and you keep the footage and the written report.
If the camera finds damage, repairs are quoted separately. See drain repair.

Buying a property in Watford? We provide comprehensive diagnostic surveys to ensure you aren't inheriting thousands of pounds in hidden drainage repairs.
For drains that block repeatedly, we use specialist cameras to navigate the pipework and pinpoint the exact root cause—whether it is a collapsed pipe, severe scale, or root ingress.
We provide full drainage mapping services for commercial properties and industrial sites across Watford, delivering fast, precise, and highly actionable results.
A clear, easy-to-understand technical report accepted by all insurers.
We provide detailed, WRC-approved reports that are easy to understand and accepted by all insurers.
Our engineers are fully trained and highly experienced specialists in CCTV drainage diagnostics, providing a factual, unbiased assessment of your drains.
Tell us the address and why you need the survey (buying, a repeat blockage or an extension). We agree a fixed price before we start, from £180.
“Excellent customer service. Highly knowledgeable and helpful staff, particularly Michael in the office who was on the phone for 20 minutes explaining Insurance and public drains liability. "
"I would like to give Drain247 complimentary feedback on the team who performed the survey. On time, courteous, efficient, hard working, respectful of our garden."
“Excellent service - went above and beyond to ensure the survey was accurate! Thanks guys”

Available 24/7. We clear blocked drains, sinks, toilets and gullies on the first visit in the vast majority of cases.
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High-resolution inspections that identify structural problems, repeated blockages and hidden defects — with a report you can act on.
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Patch lining, full relining and excavation repairs for cracked, collapsed or deteriorated pipework.
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Accurate mapping of underground drainage for planning applications, extensions and compliance checks.
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High-pressure water jetting that scours fat, silt and scale from the pipe wall.
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Vacuum tanker deployment for emptying, interceptors, and jobs too large for a van-mounted unit.
Find out moreSame-day drainage work across Hertfordshire and north west London.
A standard CCTV drain survey is from £180, and a pre-purchase homebuyer drain survey is also from £180. The price is agreed before we start and there is no call-out fee. Call 0208 387 5591 with the address and what you need checked.
If the homebuyer survey has flagged drainage, the drains smell, or the house is older stock with clay or pitch fibre pipes, yes. You get footage and a written report you can pass to your solicitor or lender. Finding a collapse after exchange costs more than the survey.
People use both names for the same camera inspection of the condition of the pipe. If you need a scaled plan of where the pipes run, for an architect or a build-over application, that is drain mapping.
A typical domestic survey is an hour to an hour and a half on site, depending on how many runs we need to cover and how easy the manholes are to access. Someone needs to give us access to a manhole, gully or WC.
We show you the footage and explain what it means. Any repair, such as a no-dig patch or full lining, is quoted separately so you can decide. See drain repairs in Watford.
All of it. We are based on Clarendon Road (WD17) and survey across WD17, WD18, WD19, WD24 and WD25, plus Bushey, Croxley Green, Rickmansworth and Abbots Langley.
Yes. Our CCTV drain surveys are WRC-approved and accepted by all insurers. You get the footage and a written report that you can send to your insurer, solicitor or lender.
Yes. Victorian laterals, 1930s clay and pitch fibre on the inter-war estates are what we survey most in Watford. The camera shows the condition of each run, joint by joint, before anyone recommends a repair.
No. There is no call-out fee. Surveys are from £180 and the price is agreed before we start.
Local engineers, a fixed price before we start, and a real person on the phone 24 hours a day.
The 2026 company brochure: the services, the area we cover, and how a visit works. Handy to send on to an architect, a builder or a buyer.