Commercial Drainage Sutton Coldfield | Know Your Obligations

A blocked drain at home is an inconvenience. A blocked drain at a food business or a rental property is a liability, and sometimes a legal one. Yet most Sutton Coldfield landlords and small business owners I meet have never been told exactly what they're responsible for, or who picks up the bill when things go wrong.

So let's be straight about it.

The myth: drainage is the water company's problem

This one comes up constantly. A landlord in Walmley calls because a tenant's toilet isn't clearing, and their opening line is, "Surely Severn Trent deals with this?"

Severn Trent owns and maintains the public sewer, which runs under the street. Everything from the boundary of your property up to the point it connects to that public sewer is yours. That includes the lateral drain under your car park, the shared drain between units on a Boldmere high street terrace, and the fat-clogged gulley behind a Mere Green takeaway. All yours. All your problem.

The 2011 transfer of ownership moved many private sewers into Severn Trent's hands, which genuinely helped. But it didn't absorb everything, and it definitely didn't absorb the drainage within your curtilage. If you're not sure where your responsibility ends, a CCTV drain survey will show you exactly where your pipe joins the public network.

Grease traps: the bit food businesses get wrong

If you run or let a premises with a commercial kitchen, a grease trap (or grease interceptor) isn't optional. Planning conditions on most B72 to B76 food units require one. Water company trade effluent bylaws require one. Your insurer probably requires one. And yet a significant number of Sutton Coldfield food businesses either don't have one, have one that's never been serviced, or have one that's undersized for what they're actually producing.

What a grease trap actually does: wastewater from sinks and dishwashers flows in, slows down, and the fat, oil and grease (FOG) floats to the surface while the cleaner water passes through to the sewer. Without it, FOG cools in the pipe, sticks to the walls, and builds up until you've got a fatberg blocking the drain, the pavement outside, or both.

Servicing intervals depend on the size of the unit and how much cooking is done, but for a busy Sutton Coldfield café or restaurant, cleaning every four to eight weeks is typical. Some go longer between services; some need it more often. The honest test is whether your trap is more than 25% full of grease, because at that point it stops intercepting properly and you're just paying for a pipe fitting that isn't working.

Grease trap neglect isn't just an operational headache. Severn Trent can issue a legal notice requiring you to clean up a FOG blockage at your own cost, and if the blockage causes a sewer overflow, the liability conversation gets uncomfortable very quickly.

Planned maintenance versus emergency calls: what the numbers actually say

I'll be direct here. The most expensive drain jobs I attend are the ones that could have been prevented with a scheduled jetting visit six months earlier.

A routine high-pressure water jetting session clears grease, silt, scale and early-stage root ingress before any of it becomes a structural problem. Emergency callouts at 2am, or a full pipe reline because a root-damaged section has collapsed, cost considerably more.

For commercial landlords managing multiple units across areas like New Oscott, Wylde Green or the Falcon Lodge industrial estate, a planned maintenance contract makes the cost predictable and keeps you compliant. It also gives you a documented service history, which matters when a tenant claims the drain was already blocked when they moved in.

For single-site food businesses, at minimum:

• Grease trap serviced on a regular cycle (not "when it smells bad")
• Annual high-pressure jetting of the main kitchen drain run
• CCTV inspection every two to three years so you know what's coming

That's not a gold-plated programme. That's the baseline that keeps a commercial kitchen out of trouble.

Landlord obligations for residential rentals

Sutton Coldfield has a lot of HMOs, converted Victorian terraces in Maney and Tudor Hill, buy-to-let flats in Wylde Green, and new-build rentals in Whitehouse Common. The drainage obligations are largely the same across all of them.

Under the Landlord and Tenant Act 1985, you're required to keep in repair and proper working order the drains, gutters and external pipes. That's not a courtesy. It's a statutory duty. If a tenant reports a slow drain and you ignore it until the pipe collapses, the repair cost is yours, plus any compensation for damage to the tenant's belongings.

What landlords often miss:

• A tenant blocking a drain with wet wipes doesn't automatically mean it's the tenant's fault if the underlying pipe was already 60% scaled. The baseline condition is the landlord's responsibility.
• Shared drains in converted properties are almost always the landlord's problem, not the individual tenant's.
• Section 11 of the 1985 Act covers drains explicitly. "I didn't know" isn't a defence.

For HMO landlords, additional licensing conditions in Birmingham and Sutton Coldfield often require a documented maintenance schedule. A CCTV survey report is exactly the kind of evidence that satisfies a council inspection.

Root ingress on commercial sites

Four Oaks, Streetly, Little Aston, the leafy B74 postcodes generally: beautiful areas, mature trees, and pipes that were laid decades before root barrier technology existed. Root ingress isn't just a residential problem. Commercial car parks, pub gardens and business grounds with established trees often have roots working into the drainage pipes beneath them.

The fix isn't always excavation. Root cutting followed by a CCTV inspection will show whether the pipe wall is still structurally sound. If it is, a drain liner can seal the pipe from the inside and stop re-entry without digging up your car park or your landscaping. If the pipe has already cracked or deformed, you need to know that before the next heavy rain makes it worse.

What you should actually do

If you're a food business operator: get your grease trap on a service schedule now, not when the drain backs up into the kitchen. If you don't have a trap and your planning or lease requires one, get it fitted before Severn Trent raises it with you.

If you're a landlord with multiple residential rentals: commission a CCTV survey on any property where you don't have a recent drain condition report. It's documentation that protects you and genuinely tells you what you own.

If you manage a commercial site with mature trees or old clay pipework: get a camera down at least every couple of years. Root ingress is gradual right up until it isn't.

Drainsco covers Sutton Coldfield and the B72 to B76 postcodes, with engineers available 24 hours a day. Commercial drainage contracts, planned maintenance programmes, CCTV surveys, grease trap servicing and relining are all quoted individually, no call-out fee, and you'll have a clear price before any work starts. The 20-year guarantee applies to remedial work including drain repairs and relining. Call and tell us what you've got; we'll tell you what it needs.