Drain Survey Reports Birmingham

A drain survey report is the written record of what your CCTV drain survey found. It uses the industry-standard WRc condition grading system (0 to 5), industry defect codes, HD footage references, and measured defect locations to create a document that is useful to you, your solicitor, your insurer, and any drainage contractor carrying out repairs. Our Birmingham drain reports are issued within 24 hours of survey.

Updated: April 2026

What Does a Drain Survey Report Contain?

A professionally produced drain survey report contains several distinct sections, each serving a specific purpose.

Executive Summary

The executive summary is written in plain English — no jargon. It answers three questions directly: what condition are the drains in, are there any urgent problems, and what should happen next? This section is the one most commonly read by solicitors, estate agents, and property buyers who need a quick overview before reading the technical detail.

Drain Run Schedule

The run schedule lists every drain run that was inspected — foul drains, surface water drains, and combined runs — along with the access point used, the pipe material, the pipe diameter, the depth at access, and the total length inspected. This gives a complete picture of the drainage system’s extent and lets any future engineer pick up where the survey left off.

Condition Grades and Defect Codes

Each defect identified during the survey is listed with:

• Its WRc condition grade (0 to 5).
• Its WRc defect code (see below for the most common codes).
• A plain-English description of the defect.
• The distance from the access point where the defect was found.
• The clock position within the pipe bore (for example, a crack at 3 o’clock on the right-hand side of the pipe).
• A reference to the corresponding footage timestamp.

This level of detail allows a repair contractor to go directly to the defect location without needing to re-inspect the drain. It also allows engineers to monitor defect progression over time by comparing reports.

HD Footage and Still Images

The report includes stills extracted from the HD footage at each defect location. For the most significant findings, we include a sequence of three stills — approaching the defect, at the defect, and leaving the defect — so the extent of damage is clearly visible. The full video footage is provided as a digital file alongside the report.

As of 2026, all our surveys are recorded in a minimum of 1080p HD. This is now the industry standard for drainage CCTV; older-generation cameras produced standard-definition footage that was significantly harder to interpret.

Boundary Assessment

The boundary assessment identifies the point at which private drainage ends and Severn Trent Water’s public sewer begins. This is critical for properties in Birmingham where the 2011 transfer of private sewers moved responsibility for many shared laterals to Severn Trent — but where boundary ambiguities still exist.

The boundary is shown on a simple drainage plan included with the report. Any defects are plotted on this plan with their WRc grade, allowing immediate identification of whether a defect falls within private or public responsibility.

Repair Recommendation Schedule

The repair schedule lists recommended actions in priority order. Each recommendation includes:

• The defect or condition being addressed.
• The recommended repair method (jetting, patch lining, full relining, or excavation and replacement).
• The priority level (immediate, within 3 months, within 12 months, or monitor).
• An approximate cost range for the repair.

The cost ranges are indicative. For firm quotes, you will need a drainage contractor to attend — but the report gives you enough information to obtain competitive quotes without commissioning a second inspection.

WRc Condition Grading Explained

WRc grading is the universal language of the drainage industry in the UK. Every drainage engineer, solicitor dealing with drainage disputes, and insurance loss adjuster understands what a WRc grade means. Here is how the scale works:

Grade 0 — No defect. The pipe is in perfect condition. No action required.

Grade 1 — Minor defect. A superficial issue with no structural implications. Monitoring recommended.

Grade 2 — Moderate defect. The pipe has a defect that may worsen over time. Planned repair or monitoring depending on context.

Grade 3 — Significant defect. The pipe’s structural integrity is beginning to be compromised. Repair should be planned within 12 months.

Grade 4 — Severe defect. The pipe’s structural integrity is significantly compromised. Repair required promptly — within three months.

Grade 5 — Critical defect. Structural failure. Immediate action required.

In practice, a property might have several Grade 1 and 2 findings alongside one Grade 3 or 4 defect. The executive summary will highlight the most urgent issue and give context for the rest.

As of 2026, approximately 60% of drain surveys carried out on pre-1960 Birmingham properties return at least one Grade 3 or above finding (Source: industry survey data compiled by Drainage UK, 2024). This reflects the age and condition of clay and pitch fibre drainage across the city’s older neighbourhoods.

Common Defect Codes in Birmingham Drain Reports

The WRc Manual of Sewer Condition Classification (MSCC) provides a standardised set of codes for every type of drain defect. The codes you are most likely to see in a Birmingham drain report are:

ROO — Root ingress. Roots growing into the pipe bore through a joint or crack. Extremely common in Edgbaston, Moseley, Harborne, and any area with mature tree coverage. Can range from fine hair roots (Grade 1) to a complete root mass blocking the bore (Grade 4 or 5).

DAF — Deformation (loss of shape). The pipe has changed from round to oval or worse. Almost exclusively found in pitch fibre pipes in post-war properties across Castle Vale, Chelmsley Wood, and similar estates. A DAF finding confirms pitch fibre is present and beyond its service life.

BAJ — Broken, angular joint. A pipe section has shifted so the joint is no longer aligned. Common in Victorian clay drainage in Digbeth, the Jewellery Quarter, and Aston where ground movement has disrupted the pipe bed.

CRF — Circumferential fracture. A crack running around the circumference of the pipe. Can be caused by point loading from above — for example, a heavy vehicle crossing an unprotected drain run — or by ground movement.

ING — Infiltration. Groundwater is entering the pipe through a crack or open joint. More common in properties near the canal network (Gas Street Basin, Brindleyplace) or the River Cole flood plain.

COL — Collapse. A section of the pipe wall has fallen in. This is always a Grade 4 or 5 finding and requires urgent action.

OBS — Obstruction. A physical object is blocking the pipe bore — could be a build-up of grease, a displaced pipe section, or foreign material.

How Reports Are Used

Conveyancing and Property Purchase

A homebuyer drain survey report is the standard document used in conveyancing when drainage condition needs to be established. Solicitors can raise formal enquiries about drain condition backed by the WRc-graded report. See our homebuyer drain survey page for the full pre-purchase process.

Insurance Claims

When a drain collapse causes damage to a property — flooding, subsidence, damp ingress — the buildings insurer will typically require a drain survey report as the first step in the claims process. The report establishes the nature and extent of the damage and its probable cause. WRc grading and defect codes are the standard evidence format for drainage insurance claims.

Severn Trent Water Disputes

If you believe Severn Trent Water is responsible for a drain defect affecting your property, the report is your primary evidence. Severn Trent’s own engineers use the same WRc framework, so a well-produced report speaks directly to the criteria they use to assess responsibility. Including clear boundary markings and defect location measurements in the report is essential.

Planning Applications and Building Regulations

When submitting a planning application for an extension or conversion in Birmingham, you may need to demonstrate that existing drainage is adequate or that proposed new connections have been properly assessed. The drain survey report provides the baseline evidence your architect needs. See our drain mapping and tracing page for the additional location data that architects and structural engineers require.

Ongoing Maintenance Records

For landlords and property managers with multiple properties in Birmingham, drain survey reports form part of a maintenance log that demonstrates compliance with housing standards and supports any future insurance or warranty claims.

Receiving and Using Your Report

Reports are issued as a PDF document via email within 24 hours of the survey. The PDF includes:

• The executive summary.
• The drain run schedule.
• The condition grade and defect code table.
• Still images for each defect.
• The drainage plan with boundary markings.
• The repair recommendation schedule.

The full HD video footage is provided as a separate MP4 file via a secure download link. Video files are large — a two-hour survey can produce several gigabytes of footage — so download links are provided rather than email attachments.

We can also send the report directly to your solicitor, architect, loss adjuster, or contractor by email. Simply provide the relevant contact details when you book.

Booking a Drain Survey in Birmingham

Call 0121 XXX XXXX to arrange a CCTV drain survey anywhere in Birmingham. We cover all B-prefix postcodes and the wider West Midlands area. Reports are issued within 24 hours and are formatted for immediate use in conveyancing, insurance claims, and Severn Trent disputes.

For commercial properties, larger drainage layouts, or surveys requiring additional mapping and tracing, see our drain mapping and tracing and commercial drain survey pages.

Frequently Asked Questions

What is WRc condition grading and what do the grades mean? WRc (Water Research Centre) condition grading is the industry-standard system for classifying drain defects. Grades run from 0 (no defect, pipe in perfect condition) to 5 (structural failure, immediate action required). Grade 1 and 2 defects are minor and may only need monitoring. Grade 3 indicates a moderate defect requiring planned repair. Grades 4 and 5 require prompt or urgent action. The system gives solicitors, insurers, and engineers a consistent, objective basis for assessing drain condition.

How quickly do I receive my drain survey report? We issue drain survey reports digitally within 24 hours of the survey in most cases. Where a same-day report is required — for example, to meet a conveyancing deadline — we can often provide this for no additional charge. Hard-copy reports printed and posted take two to three working days. We can email reports directly to your solicitor, insurance broker, or architect on request.

Can I use the report for an insurance claim? Yes. Drain survey reports are accepted as evidence by the majority of UK home and buildings insurers. If your buildings insurance policy includes underground drainage (many standard policies do), the report supports your claim by documenting the location, type, and severity of the defect. The WRc grading and defect codes in our reports use the same terminology drainage loss adjusters recognise. We can produce a supplementary letter addressed to your insurer if required.

Will the report help me dispute a Severn Trent Water responsibility decision? Yes. Severn Trent Water’s initial response to drainage complaints is often that the problem is the householder’s responsibility. A professionally produced report with accurate boundary markings and defect location measurements gives you solid evidence to contest this. Our reports include a boundary assessment identifying where private drainage ends and Severn Trent’s public sewer begins. We can annotate the report specifically to support a formal Severn Trent complaint or a referral to the Consumer Council for Water.

What defect codes are used in drain survey reports? Our reports use the standard WRc defect codes from the Manual of Sewer Condition Classification (MSCC). Common codes you will see include: BAJ (broken, angular joint), DAF (deformation — loss of shape, typical of pitch fibre), ING (infiltration — groundwater entering), ROO (root ingress), CRF (circumferential fracture), and COL (collapse). Each code is accompanied by a plain-English description so the report is useful to non-specialists as well as engineers.

Can I get a drain report for a commercial property in Birmingham? Yes. Commercial drain survey reports follow the same WRc framework but often cover larger-diameter pipes, more complex layouts, and compliance-specific requirements such as grease trap condition and FOG (fats, oils, and grease) accumulation. Reports for commercial properties are formatted for use by facilities managers, commercial solicitors, and planning authorities. See our commercial drain survey page for details.