A directory of plumbers and Gas Safe engineers working across Streatham (SW16) in the London Borough of Lambeth — from the High Road and Streatham Hill to Streatham Common, Streatham Vale and Streatham Park. Every business is checked before it’s listed, so you can contact a local plumber directly with more confidence.

No booking fees and no middleman — your enquiry goes straight to the plumber, across Streatham’s SW16 postcodes.

Contact verified plumbers in Streatham ↓

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Coverage: Streatham’s SW16 postcodes, from the High Road and town centre out to Streatham Hill (SW2 border), Streatham Common, Streatham Vale and Streatham Park, with Tooting, Norbury and Tulse Hill adjoining.

What this covers: every domestic and commercial plumbing job in the area — emergencies, burst pipes and leaks, drains, bathrooms and kitchens, appliances, taps and toilets, and the full range of boiler and central-heating work — each with its own page below.

Where to start: if you’re not sure which trade you need, the Emergency Plumber and General Plumbing pages are the broadest starting points; anything gas or heating-related routes through the boiler pages.

Availability: each plumber sets their own hours — any same-day or out-of-hours cover is shown on their profile.

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Choose the service you need to see verified plumbers covering that work in Streatham. Each page carries local detail specific to that trade.

• Emergency Plumber in Streatham — for uncontainable leaks, no water and burst pipes, with the right routing for whether it’s yours, Thames Water’s or the council’s to fix.
• Burst Pipes in Streatham — stop-tap location and emergency isolation for burst supply pipes and winter freezes.
• Leak Detection in Streatham — tracing hidden leaks, and telling a plumbing leak apart from Streatham’s surface water and the Norbury Brook.
• Blocked Drains in Streatham — clearing private blockages and diagnosing whether it’s your drain, a shared sewer or a surcharging combined sewer.
• Toilet Repairs in Streatham — running, leaking and blocked WCs, cistern parts and re-seats, where scale can contribute to valve and seal problems.
• Tap Repair & Installation in Streatham — washers, cartridges, mixer and outside-tap work, fitted to keep the mains protected from backflow.
• General Plumbing in Streatham — the everyday repairs, replacements and small installs that don’t fit a single category.
• Bathroom Plumbing in Streatham — full and partial bathroom installs, where waste falls and water-fittings compliance matter most.
• Kitchen Plumbing in Streatham — sinks, wastes and feeds, keeping the cold drinking tap on the unsoftened mains after a refit.
• Washing Machine & Dishwasher Installation in Streatham — appliance plumbing that reduces the risk of preventable connection leaks, flooding and foul-water cross-connections.
• Boiler Repair in Streatham — Gas Safe diagnosis and repair of faults, fault codes and lockouts.
• Boiler Installation in Streatham — new and replacement boilers, installed, notified and certificated by a Gas Safe engineer.
• Boiler Servicing in Streatham — annual servicing that supports efficiency and may be required by the manufacturer’s warranty terms and service-record conditions; it sits alongside the separate landlord gas safety check.
• Central Heating Repair in Streatham — radiators, pumps and controls; limescale can affect potable-hot-water components, while magnetite and corrosion debris build up separately in sealed heating circuits.
• Commercial Plumbing in Streatham — work for the High Road’s shops, cafés and businesses, including backflow, legionella and grease duties.

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Some Streatham call-outs turn out not to involve the homeowner’s private pipework, so confirming the responsible network or property party before anyone quotes can avoid delay and unnecessary cost.

Clean water and sewers are Thames Water’s. Streatham is a Thames Water area for both drinking water and sewerage.¹ Thames Water owns the mains and communication pipe to your boundary and the public and shared sewers; you own the supply pipe into your home, your internal pipes and any private drain serving only your property.¹ A blocked or overflowing public sewer goes to Thames Water on 0800 316 9800.²

Watercourses, highway drainage, surface water and sewers have separate routes. Streatham Vale sits within the Environment Agency’s Norbury Brook at Thornton Heath and Streatham Vale flood-warning area.³ Lambeth is the lead local flood authority for local surface-water risk; TfL manages highway drainage on the A23 red route; and Thames Water handles public-sewer flooding and surcharge. Lambeth’s flood strategy records historical sewer-flooding risk in Streatham and Thornton, while warning that the record may change as properties are removed.⁴ The source of water after heavy rain should therefore be identified before it is treated as a private plumbing fault.

Gas is a national emergency line. The gas network here is SGN’s, but for a leak or suspected carbon monoxide you leave and call the National Gas Emergency Service on 0800 111 999.⁵

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Streatham’s housing — and what it means for plumbing

Streatham forms part of a borough in which about 70% of residents live in flats and tenure is divided broadly between owner-occupation, social renting and private renting.⁶ The local mix includes period terraces and conversions, mansion blocks, purpose-built blocks, above-shop flats and estates. In a converted house, several flats may share a riser or undocumented isolation point; in a block, a communal tank, booster or locked service cupboard may require managing-agent access. High Road work can also involve coordinating access through a shop below or diagnosing grease-related drainage from food premises. If several flats lose pressure at the same time, the first check may be the communal riser, storage tank or booster rather than each flat’s individual taps.

Repair routing depends on tenure. A Lambeth council tenant reports through Lambeth’s repairs service (communal repairs 020 7926 6000; out-of-hours emergencies 020 7926 6666).¹¹ A housing-association tenant reports to the provider and can use the Housing Ombudsman route if the complaint remains unresolved. A private tenant should notify the landlord in writing; 14 days is the usual period for non-urgent disrepair, but dangerous electrics, loss of heating or hot water, or another severe and imminent health risk should be reported immediately and may be escalated sooner.⁷ For social tenants, Awaab’s Law requires confirmed emergency hazards to be made safe within 24 hours.⁸ Landlords letting in the Streatham Common & Vale and Streatham St Leonard’s wards should also note the HMO Article 4 direction in force since 11 August 2025.

Streatham’s water is hard, from Thames Water‘s chalk-fed supply, so limescale can affect potable-hot-water components, showers and appliances — check the exact figure by postcode.⁹ Magnetite and corrosion debris in a sealed central-heating circuit are separate from domestic-water limescale and require separate diagnosis.

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Find a verified plumber by area

• Streatham town centre & the High Road (SW16): above-shop flats and commercial premises may share stacks or require access through the unit below; food premises can also present grease-related drainage faults that need commercial access and correct responsibility routing.
• Streatham Hill (SW2/SW16): Victorian and Edwardian terraces, conversions and mansion blocks, much of it split into flats.
• Streatham Vale (SW16): the low-lying pocket in the Norbury Brook flood-warning area, where surface water and the watercourse matter as much as internal pipework.
• Streatham Common (SW16): period houses around the Common with older pipework and long garden drain runs.
• Streatham Park & Wells (SW16): in houses with rear extensions or boxed-in services, access to older pipe and drain routes may need checking before a permanent repair.

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Frequently asked questions

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Why verified plumbers — not a general directory

Most directories list whoever pays and leave the checking to you. Because Streatham work runs from gas boilers to flood-sensitive Streatham Vale to High Road commercial units, the credentials that matter shift job to job — so we verify rather than just advertise.

Every listing is checked before it goes live and re-verified annually: we confirm the business is legitimately trading and verify the named contact, we check evidence of public liability insurance, and we confirm the plumber covers Streatham’s SW16 postcodes before a profile is approved — and we keep an eye on customer feedback gathered from across the web. Where gas work is involved we confirm Gas Safe registration directly with the Gas Safe Register, and you should always ask to see the engineer’s Gas Safe ID card before gas work starts. Not every plumber does gas work, so for general and water-supply jobs you can also look a plumber up yourself on WaterSafe, the free, water-industry-backed national register.¹⁰

Listed plumbers pay a flat monthly fee to be listed. What that fee never buys is the verification itself — every listing is checked on the same terms regardless of how much a plumber spends with us — and there’s no per-enquiry middleman fee, so your enquiry goes directly to the plumber. Profiles may be suspended or removed if credentials lapse or credible concerns are raised; see the full verification process →.

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Related areas

Verified plumbers across Streatham’s neighbourhoods, including:

• Balham (border)
• Furzedown
• Norbury (border)
• Streatham Common
• Streatham Hill
• Streatham Park
• Streatham Vale
• Streatham Wells
• Tooting Bec (border)
• Tulse Hill (border)

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Related guides

• London Plumbing Costs & Compliance Guide 2026
• London Hard Water — The Complete Homeowner & Landlord Guide 2026
• How to Find Your Stop Tap (London Homes)
• London Landlord Plumbing Compliance Checklist 2026
• New Homeowner Plumbing Guide — London 2026

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Streatham’s plumbing is, more than anything, a question of correct routing: Thames Water deals with clean-water mains and public or shared sewers; the Environment Agency covers main-river flood warnings such as Norbury Brook; Lambeth leads on local surface-water risk; TfL manages drainage on the A23 red route; and private pipework is dealt with by the responsible owner, landlord or block manager. The verified plumbers listed here can be contacted directly without a booking fee or middleman.

Contact verified plumbers in Streatham ↑

Last reviewed: July 2026 by Adiel Khan — SFEDI-accredited business advisor, 20+ years’ experience (South East Enterprise Ltd) and operator of VerifiedPlumbers. LinkedIn ↗*

This page is checked for compliance and regulatory accuracy against the bodies cited on it — Thames Water, the Environment Agency, the London Borough of Lambeth, GOV.UK, the National Gas Emergency Service, the Gas Safe Register and WaterSafe. Source links are provided within this page where relevant.

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Sources & further reading

1. Thames Water — Sewer pipe responsibility (private vs public/shared pipes)

2. Thames Water — Blockages (report on 0800 316 9800)

3. Environment Agency — Norbury Brook at Thornton Heath and Streatham Vale flood-warning area

4. London Borough of Lambeth — Local Flood Risk Management Strategy (combined sewers; Streatham/Thornton sewer-flooding history)

5. National Gas — Gas emergencies (0800 111 999)

6. London Borough of Lambeth — Housing Strategy 2024–2030 (flats and tenure context)

7. London Borough of Lambeth — Problems in rented properties (usual 14-day period for non-urgent cases; earlier reporting for severe or imminent risk)

8. GOV.UK — Awaab’s Law (24-hour emergency-hazard duty)

9. Thames Water — Hard water

10. WaterSafe — national register of approved plumbing businesses

11. London Borough of Lambeth — Housing repairs and council-tenant routing