P Mulvana
The appointment was incredibly easy to arrange, they were able to fit me in far quicker than I anticipated and the service was professional and clearly explained to me. Would recommend.
Detailed build over surveys
A pre-build survey, or a build-over survey, is required when you are considering whether to build a conservatory, garage, or any other extension. Since 2011, legislation states that access to drains must not be impeded and that any work will not affect the pre-existing drainage infrastructure.
As a result, your local authority will insist that a CCTV drainage survey is completed before work is due to start near or over drains, identifying the location, condition, depth, and size of all drainage. In particular, homeowners and contractors benefit from increased insight for future decision-making.
Professional CCTV surveys
Sewage systems are commonly located near private property, and therefore, projects can impact the public sewage network. Our experts will give you the confidence that no drain or sewage pipe issues will occur and will help discover what is required before building work can begin.
We use advanced cameras to map out your drainage system, surveying, tracing and dye testing to prove existing pipe connections to main sewers and to confirm that any new drains implemented meet industry standards. Our pre-build surveys help to prevent damage to existing drains, reduce disruption, and provide detailed insight, with a report delivered at the end of the service.
Find a drainage engineer near you
At Drain Doctor, we have hundreds of engineers across the country ready to tackle your drainage problems. Enter your postcode below to find your local team.
CCTV and other service videos
Watch our videos below to see how our expert engineers carry out CCTV surveys and solve common drainage problems.
CCTV survey
Localised drain repair
No dig pipe repair
Ground drainage check
How we work
Our specialist teams are on hand to provide an efficient but effective pre-build survey solution, in addition to any other plumbing or drainage issues you may have.
Step 1
Contact us
We offer 24/7 support across the country. Whether you need routine checks, a survey, or have an emergency blockage, you can speak to your local engineer any time, day or night, regardless of the problem.
Step 2
Free call out
Once we receive your enquiry, our team springs into action. We respond within 15 minutes and can come out to your location straight away, depending on the urgency of the issue.
Step 3
Quote
During our visit, we’ll evaluate your situation. From here, we provide recommendations and a quote for prompt survey services.
Step 4
Work begins
After the quote is approved, we can start the work for you there and then to ensure your drainage issues are cleared quickly. We work in a way that minimises disruption to your property and clean up after the job is done.
Helping customers for over 30 years
We have been helping customers across the country for over three decades, delivering efficient, cost-effective drainage solutions of all sizes. Check out what they have to say about their experience with us.
Book an engineer right now
Need urgent help?
Do you have an urgent issue? Your local engineer will be in touch within 15 minutes to come and fix the issue.
Great, your engineer is booked
Booking confirmed
Next step: Our engineer will call you as soon as possible to confirm their time of arrival.
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Need help right now?
If you’re looking for urgent assistance, call the number below to speak to a member of our team.
Why choose Drain Doctor
We have over 30 years of experience in drainage solutions, like pre-build surveys. We are fully accredited, our engineers are DBS checked, and we provide an unmatched level of service to our customers.
Available 24/7, 365 days
Over 60 locations and 24/7 support
Our local engineers are always available to help you with any drainage or plumbing issues that you may be facing.
No obligation quote
At Drain Doctor, we pride ourselves on our transparency.
We provide a no-obligation quote before any work commences, and you’ll receive a fixed price for the work needed.
Rapid response times
When you contact us, we aim to respond within 15 minutes.
We’re known for our fast response time, and we can help provide a quick diagnosis and resolution, with minimal disruption.
No call out fee
When you book an engineer, you can rest easy knowing that you won’t have to pay any hidden consultation fees.
Our specialists are here to help and understand the problem at hand.
Fully accredited drainage company
We hold industry recognised accreditations, so you can rest easy knowing that you’re receiving the best level of advice and service for the job at hand.
Find your local team
We have teams up and down the country. Enter your postcode below to find your local Drain Doctor team and get in touch today.
Frequently asked questions
If you’ve got questions about pre-build surveys, take a look at our FAQs or get in touch with your local team.
With our pre-build surveys, our engineers can help to uncover damaged pipes, blockages, root ingress, and non-compliant drainage systems.
Pre-build surveys can be requirement for homeowners, developers, builders, architects, and commercial project managers.
You are not allowed to build over a drain, manhole, or pressurised pumping main, as your local water authority will require constant access. However, there is the option to move the manhole, or redirect the sewer if it interferes with your plans. This is more likely to be a problem in densely populated areas, where a pre-build CCTV survey can help.
Our engineers use CCTV footage to map the drainage layout, identify ownership of the existing drainage, and understand the drain depth. We use all this insight and make it available to architects at the planning stage.
Your go-to guide for all things drainage.
From simple how-tos to specialist advice and step-by-step videos, we’ll help you learn more about drainage and plumbing so that you can tackle common issues and keep your drains flowing with ease.
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