The Pre-Build Survey Specialist in Catford
Essential drainage diagnostics and mapping for Catford extensions and new builds. Secure your Thames Water build-over agreement with Catford’s technical experts.
- ◉ Building Control Compliant
- ◉ Precision Depth & Invert Level Data
- ◉ Fast-Track Reports for Catford Developers
100% Approval
Our reports are designed to meet all Catford local Council planning criteria.
3-Metre Rule
Expert identification of any public sewers within the critical Catford build zone.
£5M Insurance
Fully insured for all pre-construction and site works within the Catford area.
Technical Foundations for Catford Construction.
In a town with as much development as Catford, from modern urban expansions to sensitive suburban renovations, a Pre-Build Survey is the most critical step in your project’s lifecycle. Building over or near a sewer without professional documentation is a legal and structural risk. Our surveys provide the precise underground intelligence required to protect Catford’s infrastructure and your investment. We identify the exact location, depth, and condition of pipes, ensuring your foundations are designed correctly and your Catford planning application proceeds without a hitch.
Specialized Pre-purchase Drain Survey for Catford Buyers
We offer a suite of specialized investigations that fulfill the rigorous technical requirements of Catford structural engineers and water authorities.

Build-Over CCTV Inspection
The "Before" report required by Thames Water for Catford properties, documenting the structural integrity of the sewer before any groundworks begin.
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Depth & Invert Level Verification
We provide the exact measurements Catford architects need to calculate foundation depths and avoid crushing local drainage lines.
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Public Sewer Identification
Determining exactly which pipes are your responsibility and which are Catford’s public assets—a critical distinction for legal build-over agreements.
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Load-Bearing Site Mapping
Mapping the drainage network to ensure Catford new-build loads are distributed safely, preventing future pipe collapses or subsidence.
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Pre-Construction Structural Audit
A full condition assessment of Catford pipes to identify existing cracks or leaks that must be resolved before construction equipment arrives on-site.
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The "No-Dig" Solution for Catford Developers
Our solution focuses on deliveringthe hhighest-resolutiondata with zero site disruption. We ensure your Catford construction project meets all Part H Building Regulations through non-invasive, high-speed diagnostics.
- ◉ Precision Sonde tracing to identify pipe direction on Catford sites.
- ◉ Detailed WinCan reports accepted by Catford's legal and water authorities.
- ◉ Technical advice on pipe protection and diversion for Catford builds.
Non-Invasive Site Intelligence
Our Pre-Build Survey is entirely trenchless, using advanced camera technology to explore your Catford site without disturbing the ground.
Catford Site Prep
We identify all access points and map the build-zone relative to existing Catford sewer assets.
Our engineer arrives at your Catford address equipped with the latest CCTV technology.
HD CCTV Exploration
High-resolution cameras are inserted to document every joint, crack, and connection in the Catford network.
Data Package Delivery
You receive a professional report containing HD video, site maps, and depth data for your Catford build-over application.
What Our Customers Say
Daniel K., Catford Architect
"Highly Efficient. We needed a Pre-Build Survey for a Catford town-center project. They coordinated with the agent and delivered the Thames Water-ready report in 24 hours."
Megan R., Catford Homeowner
"Peace of Mind. Our Catford builder insisted on a survey before our extension. The team found a collapsed pipe we didn't know about, saving us thousands in potential damage."
Simon V., Catford Project Manager
"Professional Data. Their mapping was millimeter-perfect. Essential for any developer working in the Catford area who wants to avoid planning delays."
Why Choose Us?
We are Catford’s leading pre-construction drainage authority. Our team provides the specialized technical data that Catford’s professional building sector demands for every project.
Catford Infrastructure Knowledge
Our engineers have years of experience working with Catford’s unique drainage topography, ensuring we find assets that generic firms miss.
Advanced Diagnostic Equipment
We use the latest HD crawler cameras and sonar locators to ensure your Pre-Build Survey is the most accurate in the Catford area.
Solicitor & Authority Approved
Our reports are specifically formatted to be accepted by Catford local Council and Thames Water, streamlining your build-over agreement.
Fixed Catford Pricing
We provide transparent, upfront quotes for all Catford projects, ensuring you can budget for your survey without hidden "emergency" fees.
Rapid Site Turnaround
We know Catford construction schedules are tight. We offer priority booking for pre-build projects to keep your development on track.
End-to-End Compliance
From initial tracing to final "post-build" verification, we handle the entire compliance process for Catford developers and homeowners.
Secure Your Catford Build-Over Approval.
Get the professional drainage data your Catford project needs. Book your survey today.
Frequently Asked Questions
Why do I need a Pre-Build Survey for my Catford extension?
A Build-Over Agreement is required if you are building within 3m of a public sewer in Catford. It protects you and the water authority.
Will this survey satisfy Thames Water in Catford?
Yes. We use WinCan reporting software, which is the industry standard accepted by Thames Water and Catford building control.
What happens if you find damage during the Catford survey?
We will provide a clear HD video of the damage and a fixed-price quote to repair it before your Catford build commences.
Do I need a post-build survey as well in Catford?
Often, yes. Water authorities in Catford may require a “Post-Build” check to ensure your construction hasn’t damaged the sewer.
How long is a Pre-Build Survey valid for in Catford?
Usually, these surveys are valid for 12 months, provided no significant groundworks have occurred on your Catford site since the check.
Can you trace the depth of the pipe for my Catford structural engineer?
Absolutely. Our Sonde and Trace technology provides the exact depth data Catford engineers need for footing designs.
Do you work with Catford-based architects?
Yes, we are the preferred drainage partner for many architectural firms across the Catford area for all pre-construction works.
Is the survey messy or disruptive to my Catford property?
Not at all. It is entirely non-invasive. We access the pipes through existing manholes on your Catford site.
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Find your local team
We proudly serve
- • Lambeth
- • Abbey Wood
- • Blackheath
- • Brockley
- • Camberwell
- • Catford
- • Charlton
- • Deptford
- • Eltham
- • Greenwich
- • Kennington
- • Lee
- • Lewisham
- • Peckham
- • Rotherithe
- • Woolwich
- • Crystal Palace
- • Penge
- • Dulwich
- • Forest Hill
- • Sydenham
- • Thamesmead
and all surrounding Area.