A directory of plumbers and Gas Safe engineers working across the London Borough of Hillingdon — from Uxbridge and Hayes to Ruislip, Northwood and the Heathrow villages. Every business is checked before it’s listed, so you can contact a local plumber directly with more confidence.

✅ Checked before listing — identity, insurance, trading presence, Gas Safe (where relevant).
How we verify →
✅ Workmanship guarantee badges on listings — 1, 3, 6 or 12 months

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

Contact verified plumbers in Hillingdon ↓

Coverage: Hillingdon’s UB postcodes (UB3, UB4, UB7, UB8, UB9, UB10, UB11) and its HA postcodes (HA4, HA5, HA6), spanning Uxbridge, Hayes, West Drayton, Yiewsley, Ruislip, Northwood, Eastcote, Ickenham, Harefield, Stockley Park and the Heathrow villages.
What this covers: every domestic and commercial plumbing job in the borough — emergencies 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.
Costs: indicative Hillingdon price ranges are set out under What plumbing costs below — editorial estimates only.
Availability: each plumber sets their own hours — any same-day or out-of-hours emergency cover is shown on their individual profile.

Jump to: Services · Who’s responsible — water, sewers & drains · Housing & what it means · By area · Costs · FAQs

Plumbing services in Hillingdon

Choose the service you need to see verified plumbers covering that work in Hillingdon. Each page carries local detail specific to that trade — supplier routing, regulations and what the job typically involves in this borough.

• Emergency Plumber in Hillingdon — for uncontainable leaks, no water and burst pipes, with the right routing for whether it’s yours, Affinity’s or Thames Water’s to fix; emergency availability is shown on each plumber’s profile.
• Burst Pipes in Hillingdon — stop-tap location and emergency isolation for burst supply pipes and winter freezes across the borough’s older and newer stock.
• Leak Detection in Hillingdon — tracing hidden leaks before they become damage, including telling a genuine plumbing leak apart from surface-water and groundwater ingress.
• Blocked Drains in Hillingdon — clearing private blockages and diagnosing whether the problem is your drain, a shared sewer, a road gully or sewer surcharge after heavy rain.
• Toilet Repairs in Hillingdon — running, leaking and blocked WCs, cistern parts and re-seats, including the limescale wear that hard Hillingdon water accelerates.
• Tap Repair & Installation in Hillingdon — washers, cartridges, mixer and outside-tap work, fitted to keep the public supply protected from backflow.
• General Plumbing in Hillingdon — the everyday repairs, replacements and small installs that don’t fit a single category.
• Bathroom Plumbing in Hillingdon — full and partial bathroom installs, where correct waste falls and foul/surface-water connections matter most.
• Kitchen Plumbing in Hillingdon — sinks, wastes and feeds, keeping the cold drinking tap on the unsoftened mains and connections correct after a refit.
• Washing Machine & Dishwasher Installation in Hillingdon — appliance plumbing done so it can’t flood the kitchen or cross-connect foul water into a surface-water drain.
• Boiler Repair in Hillingdon — Gas Safe diagnosis and repair of faults, fault codes and lockouts on gas boilers.
• Boiler Installation in Hillingdon — new and replacement boilers, installed, notified and certificated by a Gas Safe registered engineer.
• Boiler Servicing in Hillingdon — annual servicing that protects efficiency and manufacturer warranties (and, for landlords, sits alongside the separate legal gas safety check).
• Central Heating Repair in Hillingdon — radiators, pumps, controls and the scale-related sludge that hard water builds up in systems here.
• Commercial Plumbing in Hillingdon — work for offices, hotels and units around Stockley Park, the Heathrow corridor and the borough’s industrial areas, including backflow, grease management and legionella duties.

Who’s responsible for what in Hillingdon — water, sewers and drains

More plumbing call-outs in Hillingdon than people expect turn out not to be the homeowner’s pipes at all. Knowing who is responsible before anyone quotes is the single most useful local check, because clean water, foul sewers, the road drainage and your own pipework are all looked after by different organisations.

Clean water in Hillingdon is supplied by Affinity Water, which runs a 24-hour emergency line on 0345 357 2407 for burst mains, no supply or contaminated water, and which is generally responsible for the mains up to the outside stop tap on your boundary.³ Supply can vary by postcode at the borough edges, so it’s worth confirming your own supplier rather than assuming.

Foul and surface-water sewers are Thames Water‘s responsibility, and blocked or overflowing public drains and sewers should be reported to them on 0800 316 9800; Thames Water is clear that property owners remain responsible for the pipes inside the home and the ones connecting it to the public sewer.² A private drain stays the owner’s responsibility until it connects to someone else’s drain or a public sewer, as Hillingdon Council sets out — so, for example, a blockage in a drain shared between several older houses can become Thames Water’s to clear once it passes the property boundary, even where the same blockage inside the boundary would be the owner’s.⁶

The roads and gullies are the council’s. Hillingdon Council says surface-water flooding — when heavy rain can’t soak away and gathers in low spots — is the biggest flood risk for residents, that road gully pots capture water and feed it into Thames Water sewers, and that its highways teams clear over 36,000 gullies across the borough each year.¹ So water across a road or driveway after a downpour is often a gully, sewer-capacity or surface-water issue rather than a private pipe — and the council notes that a property can sit in low-river-risk Flood Zone 1 and still have a recognised surface-water drainage problem.⁷

Council tenants have a separate route again: Hillingdon Council takes emergency council-property repairs by phone, day or night, on 01895 556600, and asks tenants not to report emergencies online or by email.⁵

And if you smell gas, it isn’t a plumbing job at all in the first instance — leave the property and call the National Gas Emergency Service on 0800 111 999 from outside.⁴ A good Hillingdon plumber will work through this same map — internal pipework, private drain, Thames Water sewer, road gully, Affinity supply, or wider flood risk — before quoting, because some problems belong to the council, Thames Water, Affinity, the Environment Agency or a managing agent rather than to you.

Hillingdon’s housing — and what it means for plumbing

Hillingdon is a large outer-London borough with a broad housing mix rather than one dominant type. Hillingdon’s Housing Strategy describes a range from detached and semi-detached family homes through terraced houses to flats, with most homes owner-occupied and a fast-growing private rented sector, and it sets an annualised target of 1,083 new homes.⁹ In practice that means a suburban house base — strongest in the north around Ruislip, Eastcote and Northwood — alongside a sharp rise in flats and managed blocks concentrated in the southern regeneration areas of Hayes, West Drayton, Yiewsley and Uxbridge town centre.

For plumbing, that split matters. Older suburban houses and the borough’s many designated conservation areas bring period pipework — and external soil-stack, vent and flue work that may be planning-sensitive — along with extensions, altered wastes and shared laterals that complicate diagnosis. Newer flats and managed developments bring communal risers, plant rooms and private management arrangements: a leak in a leasehold flat can mean access has to be arranged through a managing agent or traced along a communal riser, so the question is often who’s responsible and how to get in, rather than a simple pipe fault. And refurbishment work — extra bathrooms, kitchen refits, loft and HMO conversions — is exactly where foul and surface-water connections get crossed, which the council’s flood evidence treats as a genuine local risk.

Hard water runs throughout. The Affinity-supplied water across Hillingdon is hard: the Drinking Water Inspectorate classifies water between 200 and 300 mg/l calcium carbonate as hard, and Affinity’s reporting for the West Drayton zone records about 283 mg/l — firmly hard, but not “very hard.”⁸ The DWI notes hard water scales hot-water systems, kettles and appliances, shortens heating-element life and makes appliances less efficient — which is why limescale is a recurring theme for showers, taps, cylinders, boilers, dishwashers and washing machines here. Exact hardness varies by postcode, so the DWI advises checking your own figure with the water company. There’s more in our London Hard Water guide.

Landlords and HMOs should note a recent change: Hillingdon Council brought in a borough-wide Article 4 Direction in December 2025 (agreed at Full Council on 27 November 2025), so converting a dwelling (Use Class C3) to a small HMO for three or more unrelated sharers (Use Class C4) now needs planning permission anywhere in the borough — not just the former Brunel and Uxbridge South wards — while homes for seven or more already require permission as Sui Generis.¹⁰ As policy of this kind can be reviewed, check the council’s current position before relying on it. The London Landlord Plumbing Compliance Checklist covers the wider duties.

Find a verified plumber by area

Hillingdon stretches from the Hertfordshire fringe in the north to the Heathrow perimeter in the south, and the plumbing varies just as much. These are the main clusters, with the local detail a plumber working there would recognise.

Uxbridge and central Hillingdon (UB8, UB9, UB10, UB11) — Uxbridge is the borough’s main town centre, with flats above the High Street shops, The Chimes and the Pavilions, restaurants and offices, plus newer housing around the former RAF Uxbridge / St Andrew’s Park. The Greenway and Uxbridge’s historic core sit within conservation areas, so external pipework, flues and vents can be planning-sensitive. Towards Cowley, Colham and Uxbridge Moor the River Colne, Frays River and Grand Union Canal mean drainage near watercourses needs a careful look at whether water is internal, a Thames Water sewer, a road gully or a watercourse issue. Hillingdon, Hillingdon Heath and Ickenham are largely suburban houses and flats off Long Lane and the A40.

Ruislip, Eastcote and Northwood (HA4, HA5, HA6) — the suburban north, dominated by interwar and post-war houses with smaller blocks of flats, anchored by Ruislip Village (a conservation area), Ruislip Lido and Northwood. River Pinn flood risk exists but is genuinely site-specific — it’s a street-by-street check, not a whole-area label. Eastcote and Northwood sit close to the Harrow boundary, so at the edges it’s worth confirming the exact postcode and water supplier before assuming Hillingdon routing. For much of this cluster the honest position is that there’s no area-wide plumbing “issue” — the borough-wide water, sewer and gully facts above are what apply.

Hayes and Yeading (UB3, UB4) — the focus of much of the borough’s recent regeneration, with new-build flats, mixed-use blocks and converted heritage buildings like the Old Vinyl Factory, growth linked to the Elizabeth line at Hayes & Harlington, and a lot of managed blocks with communal risers and plant rooms. Site-by-site flood evidence here genuinely varies — some Hayes locations carry medium surface-water risk while nearby ones show little or none — so it’s a property-specific check, never a blanket “Hayes has bad drains.” After kitchen, bathroom and appliance work, correct foul/surface-water connection is the local watch-point.

West Drayton, Yiewsley and the Heathrow villages (UB7) — canal- and river-edge ground, new and social-rent developments (around Falling Lane and Otterfield Road) often handed to private management companies for shared drainage, and West Drayton’s station interchange. Southward, Sipson, Harmondsworth, Longford and Harlington are airport-edge villages — several within conservation areas — where work is as likely to be hotels and commercial premises as homes, and where the borough boundary runs close, so postcode and supplier checks matter.

Harefield and the Colne Valley (UB9) — the borough’s rural edge, with village housing, Harefield Hospital and the canal, reservoirs and Colne Valley nearby. Groundwater and watercourse context is real here on a property-specific basis; it’s boundary-sensitive with Buckinghamshire and Hertfordshire, so confirm routing.

Stockley Park and the commercial corridors (UB11, plus the South Ruislip and Hayes industrial areas) — Stockley Park is a major business park beside Heathrow, and with the Heathrow corridor and the borough’s industrial areas this is commercial-plumbing territory: plant rooms, boosted cold-water systems, planned out-of-hours shut-offs for office washrooms, and grease and waste management for food premises rather than domestic house types.

What plumbing costs in Hillingdon

The ranges below are a rough orientation for common Hillingdon jobs, to help you sense-check a quote — not a price list.

Editorial estimate only. These figures are not regulated rates, not market data and not a published cost survey — they’re a general guide and actual quotes vary by job, access and time of day.

Travel charges: Hillingdon is inside the London Ultra Low Emission Zone (ULEZ), which Hillingdon Council confirms applies across all London boroughs at £12.50 a day for non-compliant vehicles, 24 hours a day except Christmas Day, so a plumber’s van may carry that cost.¹³ Hillingdon is outside the central London Congestion Charge zone, so a Hillingdon job doesn’t normally attract the Congestion Charge unless the route also runs into central London. See the London Plumbing Costs & Compliance guide for more.

Frequently asked questions

Why verified plumbers — not a general directory

Most directories list whoever pays and leave the checking to you. Because Hillingdon work runs from gas boilers to HMO conversions to commercial sites near Heathrow, the credentials that matter shift job to job — so we verify rather than just advertise.

Every listing is checked before going 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 Hillingdon’s UB and HA 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 — the card shows the seven-digit registration and exactly which gas work they’re qualified to do.¹¹ 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.¹²

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 →.

Related areas

Verified plumbers across Hillingdon’s neighbourhoods, including:

• Belmore
• Botwell
• Charville
• Colham
• Cowley
• Eastcote
• Harefield
• Harlington
• Harmondsworth
• Hayes
• Hayes End
• Hayes Town
• Heathrow Villages
• Hillingdon
• Hillingdon Heath
• Ickenham
• Longford
• North Hillingdon
• Northwood
• Northwood Hills
• Pinkwell
• Ruislip
• Ruislip Gardens
• Ruislip Manor
• Sipson
• South Harefield
• South Ruislip
• Stockley Park
• Uxbridge
• Uxbridge Moor
• West Drayton
• West Ruislip
• Wood End
• Yeading
• Yiewsley

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

Hillingdon’s plumbing is, more than anything, a question of who’s responsible — clean water with Affinity, sewers with Thames Water, the roads and gullies with the council, and your own pipework with you. The verified plumbers listed here know that map, and you can contact them directly without a booking fee or a middleman.

Contact verified plumbers in Hillingdon ↑

← Back to all London boroughs

Last reviewed: May 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 — Hillingdon Council, Thames Water, Affinity Water, the Drinking Water Inspectorate, the Gas Safe Register, WaterSafe and the National Gas Emergency Service. Source links are provided within this page where relevant.

Sources & further reading

1. Hillingdon Council — Who to contact (surface-water flooding biggest flood risk; gullies feed Thames Water sewers; 36,000+ gullies cleared a year)
2. Thames Water — Blockages and blocked drains (report blocked/overflowing sewers on 0800 316 9800; owner responsibility for internal and connecting pipes)
3. Affinity Water — Contact us (24/7 emergency line 0345 357 2407; mains to the boundary stop tap)
4. National Gas — Emergency contacts (smell gas: 0800 111 999)
5. Hillingdon Council — Emergency repairs (council tenants: 01895 556600, 24-hour, not online/email)
6. Hillingdon Council — Who to contact during a flood (a private drain is the owner’s responsibility until it connects to a public sewer)
7. Hillingdon Council — Map disclaimer (critical drainage areas can be within Flood Zone 1)
8. Drinking Water Inspectorate — Water hardness (hard = 200–300 mg/l CaCO₃; scale effects; ask your water company for the accurate figure)
9. Hillingdon Council — Housing Strategy 2021/22–2025/26 (housing mix; mostly owner-occupied; growing private rented sector; 1,083 new-homes target)
10. Hillingdon Council — Article 4 Directions (borough-wide HMO C3→C4 from December 2025; Full Council 27 November 2025; 7+ already Sui Generis)
11. Gas Safe Register (only Gas Safe registered engineers may carry out gas work; check the ID card)
12. WaterSafe (free national register of approved plumbers)
13. Hillingdon Council — Ultra Low Emission Zone (ULEZ covers all London boroughs including Hillingdon; £12.50 daily; 24/7 except Christmas Day)