Compare homebuyer CCTV drain surveys by confirmed pipe coverage, mapping, footage, defect reporting and availability. The evidence does not support a quality ranking because it comes from provider pages rather than independent testing.[1][2][3][4][5][6] 
CCTV drain survey services compared
| Provider | Pipe scope and mapping | Evidence supplied | Stated availability |
|---|---|---|---|
| EMP Drainage | Waterproof-camera inspection; pipe allowances and network mapping are not confirmed. | Report covering drain condition and defects. | Suffolk and surrounding areas; the company description names Suffolk, Norfolk and Essex.[1] |
| ExJet | Foul and surface-water networks; annotated diagrams, manhole details and connectivity or ownership information. | Live or recorded footage, located defects, recommendations and indicative remedial costs. | Devon, Cornwall, Dorset and Somerset.[2] |
| Mantank | Main drainage runs and accessible laterals; mapping details are not confirmed. | Footage, written report, recommendations and condition grading. The exact grading standard is not named. | The provider claims UK-wide support; availability is not independently verified.[3] |
| GD Environmental | Camera or crawler inspection; distance markers and, where possible, GPS mapping. | Recorded findings, footage and a written report. | Geographical coverage is not confirmed in the supplied source.[4] |
| Aspect | Its pre-purchase option adds a plan showing pipe positions, flow, gullies, connections, depth, diameter and access points. | Mapped survey information; the provider distinguishes this from a standard CCTV inspection. | Coverage is not confirmed, although the source discusses London and Home Counties pricing.[5] |
| Precise Drainage Solutions | Provider-specific pipe coverage and mapping are not confirmed. | Its page discusses real-time inspection, recordings, reports and recommendations. | Geographical coverage is not confirmed.[6] |
ExJet publishes the broadest combination of network scope and report contents in this comparison, while Aspect gives the clearest description of a mapped pre-purchase survey.[2][5] Mantank is the only listed provider expressly covering accessible laterals and claiming UK-wide support.[3] These are differences in published detail, not evidence of service quality.
Check postcode coverage first
EMP names Suffolk, Norfolk and Essex, while ExJet names Devon, Cornwall, Dorset and Somerset.[1][2] Mantank claims UK-wide support, but the exact postcode should still be confirmed before booking.[3]
The supplied GD Environmental and Precise Drainage Solutions pages do not confirm geographical coverage.[4][6] Aspect discusses London and Home Counties pricing, but this does not establish its service area.[5]
Ask the provider to confirm in writing whether it will attend the full postcode and whether travel, call-out or attendance charges apply. Those charges are not confirmed in the supplied sources.[1][2][3][4][5][6]
Confirm which drains and laterals will be inspected
A CCTV drain survey generally feeds a waterproof camera into underground pipes through a manhole or inspection chamber. Longer runs may use a self-propelled crawler.[1][4][5]
ExJet expressly covers foul and surface-water networks.[2] Mantank describes main drainage runs and accessible laterals, so its published scope should not be read as a promise that every branch can be reached.[3]
Ask the provider to mark the following on the quotation:
- foul drains and separate surface-water pipes;
- main runs and each accessible lateral;
- gullies, junctions and other connections;
- runs beneath extensions, driveways, patios or other hard surfaces; and
- the route towards the main sewer connection.[1][2][3][5]
The quotation should identify known access points, any pipe-length or chamber limit, and how inaccessible sections will appear in the report. The sources do not confirm comparable allowances, access-failure charges or standard procedures for unreachable pipes.[1][2][3][4][5][6]
Specify the footage, report and drainage plan
The label CCTV survey does not confirm recorded footage, a written report, a defect schedule or a drainage plan; inclusions vary.[2][4][5] Put the required deliverables in the booking confirmation.
- Complete video files and, where offered, time-stamped images.
- Pipe start and end points, with defects located by measured distance.
- A description of each defect, its severity or grading, and recommended action.
- Manhole details and an explanation of every omitted or inaccessible run.[2][4][5]
ExJet says its report includes annotated diagrams, manhole details, connectivity or ownership information, defect footage, recommendations and indicative remedial costs.[2] Aspect describes network mapping showing waste and rainwater pipes, flow direction, gullies, connections, pipe depth and diameter, and access points.[5] Do not assume another provider includes the same material.
GD Environmental locates defects using distance markers and, where possible, GPS mapping, so GPS positioning is not guaranteed.[4] File formats and report turnaround times should also be confirmed; the supplied sources do not verify them consistently.[1][2][3][4][5][6]
Treat prices and contract terms as unknown
The evidence does not establish comparable provider-specific fixed prices, so there is no defensible price ranking.[1][2][3][4][5][6] Precise Drainage Solutions identifies property size, drainage complexity, access, pipe length and reporting level as cost variables, but does not publish a provider-specific fixed quote.[6]
| Item | What is confirmed | Question to ask |
|---|---|---|
| Blockage clearance | Precise Drainage Solutions says clearance may be charged separately; other providers’ policies are not confirmed.[6] | Is clearance included, and what happens if a blockage stops the survey? |
| Access and survey limits | Access-failure charges, pipe-length allowances and chamber limits are not verified.[1][2][3][4][5][6] | What will be charged if chambers cannot be opened or pipes are inaccessible? |
| Deposit and payment | Payment timing is not confirmed.[1][2][3][4][5][6] | When are the deposit and balance due? |
| Cancellation or rescheduling | Fees and notice periods are not confirmed.[1][2][3][4][5][6] | What charges apply if the appointment changes? |
| Warranty and insurance | Warranty terms and insurance limits are not verified.[1][2][3][4][5][6] | What cover applies to the work and report? |
| Report validity | No validity period is verified.[1][2][3][4][5][6] | Does the provider apply a validity period? |
Request a written total separating the survey, mapping, report, footage, blockage clearance, travel and any return visit. Obtain the payment, cancellation, warranty and access-failure terms before paying.
Choose the best-documented fit
Match the published deliverables to the property and the purpose of the survey. The sources provide no independent comparison of inspection accuracy, value or customer outcomes.[1][2][3][4][5][6]
- ExJet: the clearest documented fit for foul and surface-water inspection, ownership or connectivity information and indicative repair costs, subject to coverage in Devon, Cornwall, Dorset or Somerset.[2]
- Aspect: the clearest description of a mapped pre-purchase inspection for understanding the drainage layout or informing future building work; confirm postcode availability and price.[5]
- Mantank: an option to check outside the named regional areas because it claims UK-wide support; confirm postcode coverage and which laterals are accessible.[3]
- GD Environmental: relevant where measured defect positions matter; it uses distance markers and offers GPS mapping where possible.[4]
- EMP Drainage: a regional option in Suffolk, Norfolk and Essex, particularly for older, altered or vacant properties, mature trees or drains beneath hard surfaces or extensions; detailed mapping is not confirmed.[1]
- Precise Drainage Solutions: an option to investigate for recurring, unclear or potentially structural drainage concerns, subject to a property-specific scope and quote.[6]
A practical order is to shortlist by postcode, compare accessible pipe coverage and deliverables, then assess written prices and terms on a like-for-like basis.
Arrange the survey before exchange
EMP recommends arranging a survey after offer acceptance but before exchange; ExJet and GD Environmental also place it during conveyancing, before exchange or completion, so findings can be raised with the seller.[1][2][4]
The camera may identify cracks, collapsed sections, root ingress, blockages, displaced joints, deterioration and unsuitable previous repairs.[1][2][3][4][5][6] Before booking, require written confirmation of the pipe scope, inaccessible-section policy, deliverables, total price and contract terms.
Book around the local purchase process
Agree the survey and report date with your conveyancer or solicitor before making a binding purchase commitment. The timing and legal process differ between England and Wales, Scotland and Northern Ireland; do not assume that an instruction to survey “before exchange” describes every UK transaction. This is a purchase-planning checklist, and the report should state inaccessible pipes, survey limitations and which findings need specialist follow-up.
References
- Should You Get a Drain Survey When Buying a House? (empdrainage.co.uk, 2026)
- Homebuyer CCTV Surveys in the South West – ExJet (exjet.co.uk)
- Home Buyer CCTV Drain Surveys: Identifying Issues … (mantank.co.uk)
- CCTV Drain Survey Before Buying a House: What Does It … (gd-environmental.co.uk, 2026)
- Why you should consider a pre-purchase drain inspection (aspect.co.uk)
- CCTV Drain Survey Cost UK (2026 Price Guide and Prices) (precisedrainage.uk)
