A new boiler is a regulated installation — it has to be the right type for your home, fitted by a Gas Safe registered engineer, and signed off under Building Regulations. Find verified local plumbers and Gas Safe registered heating engineers in Hackney to specify and install it properly.

✅ 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

⚠️ Smell gas or suspect a leak? Get out and call the National Gas Emergency Service 0800 111 999 (free, 24/7) from outside. Suspect carbon monoxide — headaches, feeling unwell, a yellow boiler flame? Same number. Full safety steps below ↓

Contact verified plumbers in Hackney ↓

Coverage: E2, E5, E8, E9, N1 and N16, plus the wider Hackney postcodes (parts of E1, E10, E15, EC1, EC2, N4 and N15).
What this covers: specifying and installing a new or replacement boiler — combi, system or heat-only — including sizing, flue routing, condensate disposal, the controls required by the Boiler Plus standard, a system flush on changeover, and Building Regulations notification.
Not sure it’s a plumber’s job? To fix an existing boiler, see Boiler Repair; for the annual service, see Boiler Servicing; if it’s the radiators or wider system, see Central Heating Repair. A new boiler must be installed and notified by a Gas Safe registered engineer.
Costs: indicative figures are in What it costs — editorial estimates only.
Availability: lead times and scheduling vary from plumber to plumber — check each listing.

Jump to: What’s involved · Safety first · Sign-off · Hackney homes · By district · What it costs · FAQs

Choosing and installing a new boiler

The biggest decision is the type of boiler, and it should follow the home rather than the other way round:

• Combi — heats water on demand with no cylinder, so it saves space and suits smaller homes and flats with one bathroom. Hot-water flow is limited by the incoming mains, so it can struggle to run two showers at once.
• System — works with a hot-water cylinder, so it serves several bathrooms and higher demand, at the cost of the cylinder space.
• Heat-only (regular) — keeps a cylinder and a cold tank, common in older homes where a full re-pipe to combi would be disruptive.

Beyond type, a good install gets the details right: sizing the boiler to the home’s heat loss and hot-water demand (an oversized boiler cycles inefficiently); flue routing and siting, which has to keep the right distance from windows, openings and boundaries; condensate disposal to a drain, run internally where possible so it doesn’t freeze in winter; and a system flush with a magnetic filter fitted on changeover, so the existing sludge and scale don’t damage the new boiler — worth it in a hard-water borough. Finally, register the boiler with the manufacturer to activate the warranty.

Safety first

A boiler burns gas, so installation is strictly regulated and the same emergency rules apply as for any gas appliance.

If you smell gas or suspect a leak. Follow the National Gas emergency steps:¹ don’t smoke, use a naked flame, or use a mobile phone near the suspected leak; don’t touch electrical switches; open doors and windows; turn off the gas at the meter control handle (unless it’s in a cellar); leave; and call the National Gas Emergency Service on 0800 111 999 — free, 24/7 — from outside. Don’t return until a gas engineer gives the all-clear.

Carbon monoxide. A badly fitted or faulty boiler can produce carbon monoxide — a gas you can’t see, smell or taste. Warning signs include a lazy yellow or orange flame instead of crisp blue, soot or staining, and a pilot light that keeps blowing out;¹ symptoms include headaches, dizziness, nausea and breathlessness. Fit an audible CO alarm as a backup, and if it sounds or you suspect CO, get fresh air, turn the boiler off, call 0800 111 999 and seek medical advice.

Only a Gas Safe registered engineer may install a gas boiler. The HSE requires gas work to be carried out by a Gas Safe registered engineer,² and you can check the business and engineer on the Gas Safe Register or by asking to see their Gas Safe ID card.³

Renting? Once a boiler is installed, the landlord’s ongoing duty is an annual gas safety check every 12 months by a Gas Safe registered engineer, with a copy of the record to the tenant within 28 days, under the Gas Safety (Installation and Use) Regulations 1998.² Council tenants don’t arrange their own boiler — report it to Hackney Council on 020 8356 3691.⁸

Building Regulations, Boiler Plus and sign-off

Fitting a boiler is notifiable building work, and the paperwork is part of a proper installation — not an optional extra.

Notification and the certificate. When a Gas Safe registered business installs a heat-producing appliance like a boiler, it must notify (self-certify) the installation to the local authority within 30 days, and a Building Regulations Compliance Certificate is then issued for the property.⁴ Keep it safe — you’ll need it when you sell or remortgage.

Boiler Plus controls. Since April 2018, the Government’s Boiler Plus standard for England requires a new domestic gas boiler to have a minimum ErP efficiency of 92%, and every new gas or oil boiler to be fitted with time and temperature controls (at least a programmer and room thermostat); a new gas combi must also include one further energy-saving measure — flue gas heat recovery, weather compensation, load compensation, or a smart control with automation and optimisation.⁵ A good installer will talk you through which control suits your home.

Boilers and Hackney homes: flats, flues and hard water

A boiler installation in Hackney is shaped by the borough’s housing and water.

Flats, flues and freeholders. With Hackney’s housing strategy evidence recording 83.8% of dwellings as flats,⁹ a lot of installs are combi swaps in kitchen cupboards where the flue has to terminate safely on a shared wall or street frontage — and in a leasehold flat the lease and freeholder or managing agent may need to approve the work and the flue position. Some blocks run communal or district heating, where a “new boiler” isn’t an individual job at all.

Old and new stock. Period homes such as those around the 1830s De Beauvoir Square¹⁰ often involve replacing an old system boiler or a back-boiler, and in the De Beauvoir conservation area the siting of an external flue can need consent; the new flats at regeneration estates like Woodberry Down¹¹ tend to be like-for-like replacements of modern combi or system boilers.

Hard water. Thames Water classes all its supplies as hard,⁶ so a flush and a magnetic filter on changeover are well worth it to protect the new heat exchanger from scale and sludge.

Who’s responsible. If you rent privately, the landlord is responsible under section 11 of the Landlord and Tenant Act 1985 for keeping the installations for space heating and heating water in repair and proper working order.⁷ Council tenants report a failed boiler to Hackney Council on 020 8356 3691.⁸

Find a verified boiler installer by district

What an installation involves tracks Hackney’s stock.

• Dalston, Hackney Central & Hoxton (E8 / N1). Converted flats where a combi swap in a kitchen cupboard needs the flue routed safely to a shared wall or frontage, often with freeholder sign-off.
• Clapton, Stoke Newington & De Beauvoir (E5 / N16 / N1). Period homes replacing an old system boiler or a back-boiler; in the De Beauvoir conservation area¹⁰ the flue position can need consent.
• Woodberry Down & Kings Crescent (N4 / N16). New regeneration flats¹¹ usually needing a like-for-like replacement, or fed by a communal system.
• Hackney Wick & Haggerston (E9 / E2). Warehouse conversions where a combi or system has to be sized for open-plan space and long pipe runs.
• Shoreditch & the Old Street edge (E1 / EC2 / N1). High-spec flats, often with unvented systems and concealed boilers needing careful siting.
• Homerton & London Fields (E9 / E8). Family terraces where multiple bathrooms point to a system boiler and cylinder rather than a combi.
• Stamford Hill & Upper Clapton (N16 / E5). Larger households where high hot-water demand needs sizing carefully, sometimes favouring a system boiler.

If your area isn’t listed, the same applies: size the boiler to the home, route and site the flue to the rules, flush the system, and get it notified.

What it costs

Installation cost depends on the boiler type and how much pipework and flue work the change involves. The figures below are editorial estimates to sense-check a quote — not regulated rates, not market data, and not a published cost survey — and a Gas Safe registered engineer will give you their own price after a survey.

A quote should cover the boiler, controls, flue, the flush, commissioning and the Building Regulations notification. On travel: Hackney sits within the London-wide Ultra Low Emission Zone (ULEZ) but outside the central London Congestion Charge zone, so a ULEZ-compliant vehicle adds no daily driving charge to a Hackney job.¹³ For choosing a boiler type and reading a quote, see our combi vs system boiler guide and plumbing costs guide.

Frequently asked questions

Why verified plumbers — not a general directory

A new boiler is notifiable work that only a Gas Safe registered business can self-certify — so the registration isn’t a nicety, it’s what makes the install legal. 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 Hackney’s E and N postcodes before a profile is approved. Where a plumber or heating engineer offers gas work we confirm Gas Safe registration directly with the Gas Safe Register³ — and you should ask to see the engineer’s Gas Safe ID card and insist on the Building Regulations certificate after the job. For wider water-supply work you can also look a plumber up on WaterSafe, the free, water-industry-backed national register.¹² Profiles may be suspended or removed if credentials lapse or credible concerns are raised — see the full verification process →. No customer middleman fee: enquiries go directly to the plumber.

Related areas

Verified plumbers across Hackney’s neighbourhoods, including:

• Brownswood
• Clapton
• Clapton Park
• Dalston
• Dalston Kingsland
• De Beauvoir Town
• Hackney Central
• Hackney Downs
• Haggerston
• Homerton
• Hoxton
• Kingsland
• London Fields
• Lower Clapton
• Shacklewell
• Shoreditch
• South Hackney
• Stoke Newington
• Upper Clapton
• Woodberry Down

Related services

Other verified plumbing services in Hackney:

• Emergency Plumber in Hackney
• Burst Pipes in Hackney
• Leak Detection in Hackney
• Blocked Drains in Hackney
• Toilet Repairs in Hackney
• Tap Repair & Installation in Hackney
• General Plumbing in Hackney
• Bathroom Plumbing in Hackney
• Kitchen Plumbing in Hackney
• Washing Machine & Dishwasher Installation in Hackney
• Boiler Repair in Hackney
• Boiler Servicing in Hackney
• Central Heating Repair in Hackney
• Commercial Plumbing in Hackney

Related guides

• Combi vs System Boiler
• Boiler Repair or Replace
• London Plumbing Costs & Compliance Guide 2026
• New Homeowner Plumbing Guide

A new boiler is a regulated install, not just a swap: the right type and size for the home, a safely sited flue, a flushed system, the controls the Boiler Plus standard requires, and a Building Regulations certificate at the end. Get those right and it runs efficiently for years. Everyone listed above is checked before they appear — identity, insurance and trading presence, with Gas Safe registration confirmed where the work needs it.

Contact verified plumbers in Hackney ↓

← Back to all plumbing services in Hackney

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 and regulations cited on it — National Gas, the HSE, the Gas Safe Register, the Government’s Boiler Plus standard, Thames Water, the Landlord and Tenant Act 1985, Hackney Council and WaterSafe. Source links are provided within this page where relevant.

Sources & further reading

1. National Gas (what to do if you smell gas — emergency steps and the free 24/7 number 0800 111 999; carbon monoxide warning signs) — https://www.nationalgas.com/emergency-contacts
2. HSE (domestic gas: gas work must be carried out by a Gas Safe registered engineer; landlords must arrange an annual gas safety check and issue the record to tenants within 28 days, under the Gas Safety (Installation and Use) Regulations 1998) — https://www.hse.gov.uk/gas/domestic/faqlandlord.htm
3. Gas Safe Register (the legal register of competent gas engineers; check the engineer and their Gas Safe ID card) — https://www.gassaferegister.co.uk/
4. Gas Safe Register — Building Regulations certificates (installing a heat-producing appliance is notifiable; the Gas Safe registered business notifies the local authority within 30 days and a Building Regulations Compliance Certificate is issued) — https://www.gassaferegister.co.uk/gas-safety/gas-safety-certificates-records/building-regulations-certificate/
5. GOV.UK — Boiler Plus factsheet (from April 2018 in England: minimum 92% ErP efficiency for a domestic gas boiler; time and temperature controls on all new gas and oil boilers; a new gas combi must include one of flue gas heat recovery, weather compensation, load compensation or smart controls) — https://assets.publishing.service.gov.uk/media/5b2cc1e2ed915d586e2d8fe9/Boiler_Plus_Factsheet_v3.pdf
6. Thames Water (hard water: all Thames Water supplies are classified hard; scale builds on heat exchangers) — https://www.thameswater.co.uk/help/water-and-waste-help/water-quality/hard-water
7. Landlord and Tenant Act 1985, section 11 (landlord’s duty to keep installations for space heating and heating water in repair and proper working order) — https://www.legislation.gov.uk/ukpga/1985/70/section/11
8. Hackney Council (council-housing repairs: 020 8356 3691) — https://www.hackney.gov.uk/housing/repairs/repairs-council-housing
9. Hackney Council housing strategy evidence, Valuation Office Agency 2022 (dwelling mix 83.8% flats) — https://hackney.moderngov.co.uk/documents/s92322/Item+4a.+Presentation+from+Housing+Policy+Strategy.pdf
10. Hackney Council (De Beauvoir conservation area: the 1830s “new town” around De Beauvoir Square; conservation area) — https://hackney.gov.uk/debeauvoir-ca/
11. Hackney Council (Woodberry Down regeneration: Council and Berkeley Homes partnership building thousands of new homes) — https://news.hackney.gov.uk/news/statement-on-the-woodberry-down-regeneration
12. WaterSafe (free, water-industry-backed national accreditation register for approved plumbers) — https://www.watersafe.org.uk/
13. Transport for London (Ultra Low Emission Zone — London-wide coverage) — https://tfl.gov.uk/modes/driving/ultra-low-emission-zone