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

Build-Over CCTV Inspection
The "Before" report required by Thames Water for Pimlico 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 Pimlico 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 Pimlico’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 Pimlico 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 Pimlico 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 Pimlico Developers
Our solution focuses on deliveringthe hhighest-resolutiondata with zero site disruption. We ensure your Pimlico construction project meets all Part H Building Regulations through non-invasive, high-speed diagnostics.
- ◉ Precision Sonde tracing to identify pipe direction on Pimlico sites.
- ◉ Detailed WinCan reports accepted by Pimlico's legal and water authorities.
- ◉ Technical advice on pipe protection and diversion for Pimlico builds.
Non-Invasive Site Intelligence
Our Pre-Build Survey is entirely trenchless, using advanced camera technology to explore your Pimlico site without disturbing the ground.
Pimlico Site Prep
We identify all access points and map the build-zone relative to existing Pimlico sewer assets.
Our engineer arrives at your Pimlico address equipped with the latest CCTV technology.
HD CCTV Exploration
High-resolution cameras are inserted to document every joint, crack, and connection in the Pimlico network.
Data Package Delivery
You receive a professional report containing HD video, site maps, and depth data for your Pimlico build-over application.
What Our Customers Say
Daniel K., Pimlico Architect
"Highly Efficient. We needed a Pre-Build Survey for a Pimlico town-center project. They coordinated with the agent and delivered the Thames Water-ready report in 24 hours."
Megan R., Pimlico Homeowner
"Peace of Mind. Our Pimlico 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., Pimlico Project Manager
"Professional Data. Their mapping was millimeter-perfect. Essential for any developer working in the Pimlico area who wants to avoid planning delays."
Why Choose Us?
We are Pimlico’s leading pre-construction drainage authority. Our team provides the specialized technical data that Pimlico’s professional building sector demands for every project.
Pimlico Infrastructure Knowledge
Our engineers have years of experience working with Pimlico’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 Pimlico area.
Solicitor & Authority Approved
Our reports are specifically formatted to be accepted by Pimlico local Council and Thames Water, streamlining your build-over agreement.
Fixed Pimlico Pricing
We provide transparent, upfront quotes for all Pimlico projects, ensuring you can budget for your survey without hidden "emergency" fees.
Rapid Site Turnaround
We know Pimlico 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 Pimlico developers and homeowners.
Secure Your Pimlico Build-Over Approval.
Get the professional drainage data your Pimlico project needs. Book your survey today.
Frequently Asked Questions
Why do I need a Pre-Build Survey for my Pimlico extension?
A Build-Over Agreement is required if you are building within 3m of a public sewer in Pimlico. It protects you and the water authority.
Will this survey satisfy Thames Water in Pimlico?
Yes. We use WinCan reporting software, which is the industry standard accepted by Thames Water and Pimlico building control.
What happens if you find damage during the Pimlico survey?
We will provide a clear HD video of the damage and a fixed-price quote to repair it before your Pimlico build commences.
Do I need a post-build survey as well in Pimlico?
Often, yes. Water authorities in Pimlico 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 Pimlico?
Usually, these surveys are valid for 12 months, provided no significant groundworks have occurred on your Pimlico site since the check.
Can you trace the depth of the pipe for my Pimlico structural engineer?
Absolutely. Our Sonde and Trace technology provides the exact depth data Pimlico engineers need for footing designs.
Do you work with Pimlico-based architects?
Yes, we are the preferred drainage partner for many architectural firms across the Pimlico area for all pre-construction works.
Is the survey messy or disruptive to my Pimlico property?
Not at all. It is entirely non-invasive. We access the pipes through existing manholes on your Pimlico site.
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Find your local team
We proudly serve
- • Pimlico
- • Brixton
- • Chelsea
- • Clapham
- • Earls Court
- • Fulham
- • South Kensington
- • Battersea
- • Balham
- • Barnes
- • North Sheen
- • Putney
- • Streatham
- • Tooting
- • Wandsworth
- • Wimbledon
- • Raynes Park
and all surrounding Area.