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Plumbing

Find guidance on leaks, pipework, drainage, water pressure and everyday home plumbing issues.

Plumbing

Drain Problems? When you Should Call a Plumber

Last week we looked at the various causes of slow drains, and how you can diagnose and fix them yourself. As with many home repairs or improvements, there is a point at which it is wise to call in a professional. This is usually when the job goes beyond your capabilities or equipment, when your efforts to fix it yourself have been unsuccessful, or if your property or fellow inhabitants are in danger.

Last week we looked at the various causes of slow drains, and how you can diagnose and fix them yourself. As with many home repairs or improvements, there is a point at which it is wise to call in a professional. This is usually when the job goes beyond your capabilities or equipment, when your efforts to fix it yourself have been unsuccessful, or if your property or fellow inhabitants are in danger.

When it comes to slow drains, many issues can be resolved with DIY methods, but there are times when calling a professional plumber is the best option:

Persistent blockage – If the drain is still slow despite multiple cleaning attempts, a deeper issue may be present. Contact a local plumber, explain the problem, and ask for an initial quote to visit.

Strong odours – Unpleasant smells from the drain can indicate trapped debris, bacterial growth, or a problem in the sewer line. This is not only unpleasant to live with but could present an infection risk. Call a plumber to get it checked out. Don’t be tempted to ignore the problem and try to mask the smell with products.

Multiple slow drains – If more than one sink or drain in your home is slow, this is more likely to signify something more serious, such as a blockage in the main drainage system.

Gurgling pipes – If your pipes make strange noises when water drains, it could mean there’s air trapped in the pipes, and that is usually caused by a blockage.

Water backing up – If water is coming back up into your sink or bubbling in other drains when water is used, a blockage is likely – call your local plumber to get it checked out as soon as possible.

Preventing drainage problems

Blocked drains can be extremely inconvenient, but there are a few things that you can do to prevent the build up of grease and debris that usually causes drain blockages:

  1. Prevent food, hair, and other debris from entering the drain by using sink strainers.
  2. Instead of pouring grease straight down the drain, dispose of cooking oil and fat in a separate container. Once it’s solidified, you can simply throw it away.
  3. Prevent grease build-up by running boiling water down the drain once a week.
  4. Get into the habit of monthly drain maintenance by pouring a mixture of baking soda and vinegar down the drains to help keep them clear without harsh chemicals.
  5. If you live in an area with hard water, occasional pipe descaling by a plumber can prevent mineral build-up.

Slow drains may be annoying, but there is often a relatively quick fix at hand for professionals with the right tools for the job. If you notice your drains are running a bit slower than usual, if they smell at all, or if water is backing up, call a trusted, rated plumber to get the problem fixed sooner rather than later. For more top tips, follow Trust A Trader on Facebook or Twitter.

Looking for more plumbing advice?

Find clear, practical answers to common plumbing questions, helping homeowners understand everyday issues, know what checks they can carry out safely, and when it is best to contact a qualified professional.

  • What should I do if I have a blocked drain or sink?

    Start with a plunger - create a good seal and use firm, steady pressure. For a kitchen sink blocked with grease, bicarbonate of soda followed by vinegar can help. If that's not shifting it, a drain snake reaches further down the pipe. Go easy on chemical drain cleaners as they can damage older pipes and rarely sort the root cause. If the blockage keeps coming back, affects more than one outlet, or you're getting unpleasant smells, call a plumber rather than trying to patch up the problem.

  • How can I tell if I have a hidden water leak?

    The most obvious clue is a water bill that's gone up without any change in your usage. Beyond that, listen out for running water when everything's turned off, and watch for damp patches on walls or ceilings nowhere near an obvious water source. A quick self-test is to turn everything off and watch your water meter - if it's still moving, there's a leak somewhere. Tracking down exactly where it is usually needs a specialist detection kit, which a plumber can bring in without having to rip everything up.

  • What should I do if I have a burst pipe?

    Turn off your stopcock straight away - you'll usually find it under the kitchen sink or where the mains water enters the property. Once it's off, open your taps to drain what's left in the system, switch off the boiler if you can do so safely, and mop up any standing water before it reaches electrics or flooring. Then call a plumber. With burst pipes, the faster you act, the less damage you'll be faced with.

  • What is a gas safety certificate and do I need one?

    A Gas Safety Record is issued by a Gas Safe registered engineer after checking that all your gas appliances, flues, and pipework are safe. Landlords in England, Scotland, and Wales are legally required to get one every year and give tenants a copy within 28 days. For homeowners it's not a legal requirement, but getting a check done alongside your annual boiler service is a smart idea, particularly in older properties. Only a Gas Safe registered engineer can carry out the work or issue the certificate - you can check anyone's registration on the Gas Safe Register website.

  • Why is my water pressure low and can a plumber fix it?

    Low pressure usually comes down to one of a handful of things: a stop valve that's not fully open, limescale build-up in older pipes, a failing pressure-reducing valve, or an issue with your water provider's mains supply. In most cases a plumber can sort it - though if the problem is with the mains itself, you'll need to contact your water company first. Either way, don't just live with it - ongoing low pressure can sometimes point to something more serious.

  • How do I know if my boiler needs replacing or just repairing?

    If it's under ten years old and it's one specific fault, a repair usually makes sense. If it's over fifteen, has needed multiple fixes recently, is making strange noises, or your energy bills have crept up for no obvious reason - replacement is probably the better investment. A useful rule of thumb: if the repair would cost more than half the price of a new boiler, it's probably time to replace it.

  • How often should I get my plumbing inspected?

    There's no legal requirement for homeowners, but every two to three years is a sensible habit - especially in older properties or hard water areas where limescale builds up over time. Your annual boiler service covers some of the associated pipework too. And if anything seems off between inspections - odd noises, discoloured water, unexplained damp - don't wait. Get it looked at sooner.

  • Why do my pipes make a banging or knocking noise?

    That banging sound (sometimes called water hammer) usually happens when water flow is suddenly stopped or redirected, sending a pressure wave through the pipes. It's most common after flushing the toilet, shutting a tap sharply, or when a washing machine valve closes. Pipes that aren't properly secured can also knock against walls or joists. It sounds alarming but it's often an easy fix - a plumber can figure out whether it's a pressure issue, a faulty valve, or just some loose pipework.

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