Alton Drainage

The Pre-Build Survey Specialist in Alton

Essential drainage diagnostics and mapping for Alton extensions and new builds. Secure your Thames Water build-over agreement with Alton’s technical experts.

100% Approval

Our reports are designed to meet all Alton local Council planning criteria.

3-Metre Rule

Expert identification of any public sewers within the critical Alton build zone.

£5M Insurance

Fully insured for all pre-construction and site works within the Alton area.

Technical Foundations for Alton Construction.

In a town with as much development as Alton, 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 Alton’s infrastructure and your investment. We identify the exact location, depth, and condition of pipes, ensuring your foundations are designed correctly and your Alton planning application proceeds without a hitch.

CCTV drain inspection detecting pipe damage

Specialized Pre-purchase Drain Survey for Alton Buyers

We offer a suite of specialized investigations that fulfill the rigorous technical requirements of Alton structural engineers and water authorities.

Recurring drain blockage caused by debris build-up in underground pipe

Build-Over CCTV Inspection

The "Before" report required by Thames Water for Alton properties, documenting the structural integrity of the sewer before any groundworks begin.

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Cracked and collapsed drain pipe found during CCTV inspection

Depth & Invert Level Verification

We provide the exact measurements Alton architects need to calculate foundation depths and avoid crushing local drainage lines.

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Tree roots penetrating underground drainage pipe

Public Sewer Identification

Determining exactly which pipes are your responsibility and which are Alton’s public assets—a critical distinction for legal build-over agreements.

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Damaged drain joint allowing rodent entry

Load-Bearing Site Mapping

Mapping the drainage network to ensure Alton new-build loads are distributed safely, preventing future pipe collapses or subsidence.

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Unblocking external gully and manhole drain

Pre-Construction Structural Audit

A full condition assessment of Alton pipes to identify existing cracks or leaks that must be resolved before construction equipment arrives on-site.

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HD CCTV drain inspection report with WinCan digital footage

The "No-Dig" Solution for Alton Developers

Our solution focuses on deliveringthe hhighest-resolutiondata with zero site disruption. We ensure your Alton construction project meets all Part H Building Regulations through non-invasive, high-speed diagnostics.

Non-Invasive Site Intelligence

Our Pre-Build Survey is entirely trenchless, using advanced camera technology to explore your Alton site without disturbing the ground.

Alton Site Prep

We identify all access points and map the build-zone relative to existing Alton sewer assets.

Our engineer arrives at your Alton address equipped with the latest CCTV technology.

HD CCTV Exploration

High-resolution cameras are inserted to document every joint, crack, and connection in the Alton network.

Data Package Delivery

You receive a professional report containing HD video, site maps, and depth data for your Alton build-over application.

What Our Customers Say

Daniel K., Alton Architect

"Highly Efficient. We needed a Pre-Build Survey for a Alton town-center project. They coordinated with the agent and delivered the Thames Water-ready report in 24 hours."

Megan R., Alton Homeowner

"Peace of Mind. Our Alton 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., Alton Project Manager

"Professional Data. Their mapping was millimeter-perfect. Essential for any developer working in the Alton area who wants to avoid planning delays."

Professional drainage installation team on site

Why Choose Us?

We are Alton’s leading pre-construction drainage authority. Our team provides the specialized technical data that Alton’s professional building sector demands for every project.

Alton Infrastructure Knowledge

Our engineers have years of experience working with Alton’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 Alton area.

Solicitor & Authority Approved

Our reports are specifically formatted to be accepted by Alton local Council and Thames Water, streamlining your build-over agreement.

Fixed Alton Pricing

We provide transparent, upfront quotes for all Alton projects, ensuring you can budget for your survey without hidden "emergency" fees.

Rapid Site Turnaround

We know Alton 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 Alton developers and homeowners.

Secure Your Alton Build-Over Approval.

Get the professional drainage data your Alton project needs. Book your survey today.

Frequently Asked Questions

A Build-Over Agreement is required if you are building within 3m of a public sewer in Alton. It protects you and the water authority.

Yes. We use WinCan reporting software, which is the industry standard accepted by Thames Water and Alton building control.

We will provide a clear HD video of the damage and a fixed-price quote to repair it before your Alton build commences.

Often, yes. Water authorities in Alton may require a “Post-Build” check to ensure your construction hasn’t damaged the sewer.

Usually, these surveys are valid for 12 months, provided no significant groundworks have occurred on your Alton site since the check.

Absolutely. Our Sonde and Trace technology provides the exact depth data Alton engineers need for footing designs.

Yes, we are the preferred drainage partner for many architectural firms across the Alton area for all pre-construction works.

Not at all. It is entirely non-invasive. We access the pipes through existing manholes on your Alton site.

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