How much does drain repair & patch lining cost in Clapham?+
Pricing depends on the scope of work, parts required and time on site. Our engineer will quote a fixed price before any work starts at your Clapham property — no surprises on the invoice.
Are your plumbers qualified and insured for drain repair & patch lining?+
Yes. Every engineer is fully insured (£5m public liability), DBS-checked and — for any boiler or gas work — Gas Safe registered. We send the right qualified person for drain repair & patch lining in Clapham.
How quickly can you attend in Clapham?+
For genuine emergencies we aim to be on site in Clapham within the hour, 24/7. For pre-booked work, same-day or next-day slots are usually available across Clapham and the surrounding areas.
Do you guarantee the work?+
Yes — all plumbing repairs come with a workmanship guarantee, and replacement parts carry the manufacturer's warranty. For boiler repairs the parts & labour guarantee is 12 months.
Do you cover residential and commercial properties in Clapham?+
Yes. We work in homes, flats, HMOs, restaurants, offices, shops and managed buildings across Clapham and the surrounding areas — including landlords, letting agents and facilities companies.
How much do drain repairs cost?+
Drain repair costs depend on the fault, access and whether the damaged section is above ground or buried. Emergency Plumber London offers fixed-price repairs from £120+VAT in Clapham, with the price confirmed on the phone before an engineer is sent. The same price applies day, night, weekends and bank holidays. Call 07307 202652 and describe the leak or damage so the repair and price can be discussed before dispatch.
Are drain repairs covered by insurance?+
Drain repairs may be covered by buildings insurance if the damage falls within your policy’s insured risks, but cover varies. Gradual deterioration, poor maintenance and routine blockages are often excluded. Check your policy wording and contact your insurer before authorising major excavation or permanent repairs, unless immediate action is needed to make the situation safe. Photograph the damage and retain inspection reports and receipts. Responsibility can also depend on whether the affected drain is private or shared.
Do plumbers fix drains?+
Yes, plumbers repair drains, including leaking sink wastes, traps and accessible waste pipes. The repair might involve replacing a washer, reseating a fitting or renewing a cracked section. Underground drains can require specialist drainage equipment for camera surveys, excavation or lining, so describe the location and symptoms when arranging help. If sewage is backing up, stop using affected fixtures and keep people and pets away from the contaminated area.
How to repair a leaky drain?+
Repair a leaky drain by locating the exact source before choosing a fix. Stop water entering the drain, catch any drips and inspect accessible joints for loose nuts, damaged washers or cracks. Replace failed seals or damaged sections rather than coating the outside with sealant. Buried drains may need a camera inspection to establish whether local repair, lining or replacement is suitable. Keep away from sewage and avoid pouring chemical drain cleaner into leaking pipework.
How to fix a leaking PVC drain?+
Fixing a leaking PVC drain depends on the joint type. For a compression fitting, stop using the drain, place a bucket underneath and check the washer and pipe alignment; replace damaged seals rather than overtightening the nut. A leaking solvent-weld joint or cracked pipe generally needs cutting out and replacing with compatible pipe and fittings. Repair tape may temporarily contain a small leak, but it is not a lasting repair. Never use solvent cement on incompatible plastics.
Why is the drain under my sink leaking?+
A drain under your sink usually leaks because a washer has worn out, a compression nut has loosened, or pipework is misaligned. Cracked traps and a failed seal around the sink outlet are other common causes. Dry everything, then run a small amount of water while watching where the first droplet appears. If water is near electrical sockets or appliances, stop using the sink and keep clear of wet electrics. Avoid overtightening plastic nuts, which can crack.
What do plumbers use to seal a sink drain?+
Plumbers use different seals depending on the sink drain fitting. Sink outlets may use a supplied gasket, suitable sanitary silicone or plumber’s putty where the manufacturer permits it. Plastic compression traps normally seal with rubber or tapered washers, not thread tape. Solvent-weld waste pipes require compatible solvent cement, while push-fit joints use rubber seals. Choosing the correct seal matters: adding sealant to a damaged washer or cracked fitting usually leaves the real problem unresolved.
How can I seal a leaking sink drain?+
To seal a leaking sink drain, first identify whether water is escaping around the sink outlet, a trap joint or a cracked pipe. Stop using the sink, place a bucket underneath and dry the fittings before testing with a little water. A leaking outlet may need reseating with the correct sealant or gasket; trap joints usually need a properly seated replacement washer. Avoid smearing silicone over joints, as this rarely fixes the underlying fault.