--- title: "Manhole Inspection | Northstar Plumbing" description: "Domestic manhole inspection to find blockages or defects, improve drainage, stop overflows and odours, and confirm normal flow is restored." canonical: "https://www.northstarplumbing.co.uk/services/manhole-inspection" --- ![Worker in red hard hat and orange cat peering into open manhole with flashlight](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Fworker-cat-open-manhole-flashlight.jpg%3Fv%3D1768575124081&w=1536&q=75&dpl=dpl_DEc4fGhEc1SCRZZutzoEsRuDy1CJ) Drainage & Blockages # Manhole Inspection [Contact Us](https://www.northstarplumbing.co.uk/redirect) A manhole inspection is a practical way to pinpoint the cause of slow draining, wastewater smells, or an external overflow. It focuses on checking the condition and flow at the inspection chambers, identifying where the problem starts, and taking the right steps to restore normal drainage. ## What a manhole inspection covers A manhole inspection is designed to quickly narrow down the cause of drainage issues and confirm the system is running as it should. - Locating and checking the relevant inspection chambers and covers - Assessing flow and signs of surcharge, backing up, or standing water - Identifying likely causes, including fat build-up, wipes, silt, or root ingress - Checking for defects such as displaced joints, cracks, or partial collapse - Clearing the blockage where possible using appropriate tools and methods - Testing and confirming that normal drainage has been restored - Explaining findings clearly and outlining next steps if further work is needed ### When this service is the right fit Book a manhole inspection if you have repeated slow drains, gurgling, bad smells outside, or a manhole that overflows after using appliances. It is also useful if a blockage keeps returning, or if you want clarity on whether the issue sits within your drainage run or further along the line. ### What to expect during the visit The work starts by identifying the most relevant access points and checking flow through the chambers. The manhole is then inspected for obvious restrictions or damage, and the likely blockage location is confirmed by how the line is behaving. If a blockage is found and it is safe to do so, it can often be cleared during the same visit, followed by a simple flow test. ### After the inspection: clear actions and options Once drainage is moving normally, you will be advised on what caused the issue and how to reduce the chance of it happening again. If a defect is identified, you will get practical options for repair, along with the implications of leaving it as-is. Where responsibility may be shared, for example with neighbours or a managing agent, you can be given guidance on what information helps move things forward. [Contact Us](https://www.northstarplumbing.co.uk/redirect) ## Frequently Asked Questions What problems can a manhole inspection help diagnose? It can identify where a blockage is forming and whether it is caused by build-up, debris, or root ingress. It can also reveal visible defects like displaced joints or damage that affects flow. Will the inspection also clear the blockage? If the blockage is reachable from the manhole and can be cleared safely, it is often dealt with during the same visit. If it needs specialist equipment or further access, you will be advised on the next best step. Do I need to be at the property for a manhole inspection? Access to the relevant outdoor manholes is needed, and it is usually best if someone is available to discuss symptoms and confirm when flow has improved. If access is straightforward, arrangements can sometimes be made for landlords or managing agents. What if the manhole cover is stuck or unsafe to lift? If a cover cannot be lifted without risk of damage or injury, it will not be forced. You will be told what is preventing access and what options are available to gain safe entry. What happens if you find a damaged drain or ongoing defect? You will be shown what has been found and how it is likely to affect drainage now and in future. You will then be given clear repair options and the recommended order of work to prevent repeat problems. 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