Skip to main content
    Jimmy Taps
    Expert Advice

    DIY Plumbing vs Hiring a Plumber. What You Can and Can't Fix Yourself

    Not every plumbing job needs a professional. But some definitely do. This guide covers what Liverpool homeowners can safely fix themselves and when to always call a plumber.

    DIY plumbing versus professional plumber Liverpool: when to call a plumber

    With YouTube tutorials and hardware shops on every corner, it's tempting to tackle plumbing problems yourself. Sometimes that's the right call. Other times it creates bigger problems than the original fault. Here's a practical guide to what you can and can't safely fix yourself in a Liverpool home.

    What You Can Usually Fix Yourself

    Replacing a Washer in a Dripping Tap

    Isolating the tap, removing the head and replacing a worn washer is a manageable DIY job with the right tools. Make sure the water is fully isolated before you start. If the tap body is corroded or the seat is damaged, you'll need a plumber.

    Unblocking a Sink Drain

    Using a sink plunger on a slow-draining sink is DIY-friendly. A biological drain cleaner can help with grease and soap build-up. Avoid chemical drain unblockers on older Liverpool properties with lead or cast-iron waste pipes: they can cause damage.

    Replacing a Toilet Seat

    A straightforward swap with standard fittings. No plumbing knowledge required, just a screwdriver and patience.

    Bleeding a Radiator

    If a radiator is cold at the top and warm at the bottom, it's full of air. A radiator bleed key (a few pounds from any hardware shop) and a cloth is all you need. Turn off the heating first, hold the cloth under the bleed valve, and release the air slowly until water appears.

    What Usually Needs a Plumber

    Any Work on the Main Supply Pipe

    The main water supply pipe from the street to your property is not a DIY job. Getting this wrong can leave you without water or cause a significant leak inside the property.

    Boiler Repairs and Gas Work

    Any work on gas appliances, including boilers, must be carried out by a Gas Safe registered engineer. This is a legal requirement in the UK, not a recommendation. DIY gas work is dangerous and illegal.

    Any Work Inside Walls

    Concealed pipework inside walls is the territory of a professional. Getting it wrong means water damage inside wall cavities that can go undetected for months.

    Replacing a Toilet

    Fitting a new toilet involves dealing with the soil pipe connection. Getting this wrong risks sewage smells or leaks. A plumber can fit a new toilet properly in around an hour.

    Complete Bathroom Fitting

    Full bathroom installations involve multiple connections, potential alterations to waste and supply pipework, and sometimes structural decisions about positioning. A professional ensures everything is watertight and compliant.

    The Rule of Thumb

    If water is coming from somewhere it shouldn't, if the job involves gas, if it's inside a wall or floor, or if you're not confident what you're looking at: call a professional. The cost of a plumber is almost always less than the cost of fixing a DIY job gone wrong.

    Jimmy Taps offers free quotes for all plumbing work across Liverpool and Merseyside. Call 07307 331103.

    Expert plumbing services across Liverpool, Merseyside & the Wirral