5 Best Water Heater Services in London (2026)

Independently ranked by our review of ratings, reviews and reputation · How we chose

By Brad Smith, Home Services Expert · ✓ Data verified August 2026 · 7 min read

A cold shower on a January morning tends to be the moment Londoners finally look up water heater services, and by then you want someone who will actually turn up. Heating for London has logged 116 Google reviews at a perfect 5.0, and four other engineers here also hold ratings of 4.7 or higher, so the real question is who can get to you fastest.

Short answer: For water heater and boiler work in London, Heating for London and Giovanni the Plumber both hold a perfect 5.0 rating, with Heating for London the more reviewed of the two at 116 Google reviews. Super Efficient and Reid Plumbing Services round out the strongest options for boiler installation and repair, with hourly rates from around £80 plus VAT according to one business's published pricing.

Jump to a business

1. Heating for London
2. Reid Plumbing Services
3. Super Efficient
4. Giovanni the Plumber
5. TAISEI
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London's Water Heater and Boiler Engineers, Compared

#	Business	Rating	Reviews	Best for
1	Heating for London	5.0 ★	116	Boiler diagnostics and repair	View ›
2	Reid Plumbing Services	4.9 ★	74	Full bathroom and heating refurbishments	View ›
3	Super Efficient	4.7 ★	82	Boiler replacement, fast turnaround	View ›
4	Giovanni the Plumber	5.0 ★	52	Long-term, trusted relationship	View ›
5	TAISEI	5.0 ★	34	Boiler and thermostat installation	View ›

5 Best Water Heater Services in London (2026)

Our picks for water heater and boiler work in London

#1 Overall🕑 Open 6 days/wk

Heating for London

5.0116 Google reviews

Heating for London is an East London-based plumbing and heating company with over 10 years of experience, offering boiler installations, servicing and repairs alongside general plumbing work. Run by Nick, it's built a strong reputation for clear, patient explanations of what's wrong with a system before starting work. It's the most-reviewed water heater and boiler specialist on this page, with a perfect rating.

What people praise

Consistently praised for explaining problems in plain, easy-to-understand terms
Same-day response reported by multiple reviewers, even during a heatwave emergency
Handles both boiler work and broader plumbing issues like leaks and radiators
Perfect rating across all reviews collected so far

Worth knowing

As a single-engineer-led business, availability may be tighter during peak demand

Reputation scorecardrank in London

Rating5 / 5

Review volume116 · 97th

Confidencemoderate

Recency5 weeks ago

Info completenesssite · phone · hours

Rating breakdown100% 5-star

✓ VerifiedSource: Google

Our take: The most-reviewed and highest-rated water heater specialist on this page, with a track record of clear communication that makes it a strong first call for boiler diagnostics or repair.

Website +447985557907 Directions

#2🕑 Open 7 days↩ Responds to reviews

Reid Plumbing Services

4.974 Google reviews

Reid Plumbing Services is a London plumbing and heating company run by Jamal Reid, covering everything from tap and radiator installation to full bathroom refurbishments and gas installation work. Reviewers describe both smaller jobs like fitting a shower door and larger projects like complete bathroom reconstructions during a house renovation.

What people praise

Handles both small fixes and full-scale renovation projects
Owner Jay described repeatedly as professional, knowledgeable and solutions-focused
Fast response to emergencies, including same-day pipe repairs
Radiator installation and boxing-in work praised for a clean, finished look

Worth knowing

A slightly wider spread of feedback than the top pick, though still overwhelmingly positive

Reputation scorecardrank in London

Rating4.9 / 5

Review volume74 · 85th

Confidenceearly

Recency5 months ago

Info completenesssite · phone · hours

Rating breakdown95% 5-star

✓ VerifiedSource: Google

Our take: The strongest choice on this page if your water heater work is part of a larger bathroom or renovation project, not just a standalone repair.

Website +447548332045 Directions

#3🕑 Open 7 days

Super Efficient

4.782 Google reviews

Super Efficient is a London plumbing and heating company offering boiler breakdown repairs, landlord gas certificates, boiler servicing and drainage repairs, with 24/7 emergency service. It publishes its service list clearly online, covering everything from unvented hot water cylinders to underfloor heating installation, and serves both homeowners and property managers.

What people praise

Full boiler replacement completed in a single day, per one reviewer
Trusted as the go-to contractor for a rental property management company
Same-day response for burst pipes and other plumbing emergencies
Transparent published service list on its website

Worth knowing

A newer review base of 82, though every review to date is strongly positive

Reputation scorecardrank in London

Rating4.7 / 5

Review volume82 · 91th

Confidenceearly

Recency3 weeks ago

Info completenesssite · phone · hours

Rating breakdown93% 5-star

✓ VerifiedSource: Google

Our take: A strong pick for a fast, full boiler replacement or for landlords needing gas safety certification, backed by a property management company's ongoing trust.

Website +442071267272 Directions

#4🕑 Open 5 days/wk

Giovanni the Plumber

5.052 Google reviews

Giovanni the Plumber is a Central London plumbing and heating business run by Giovanni, covering boiler installation, servicing, tap and radiator repairs, and general plumbing. Several reviewers describe using him repeatedly over three to four years for a range of jobs, from boiler servicing to full boiler replacement, citing consistent quality and fair, competitive pricing.

What people praise

Long-term customers report using him repeatedly over several years with consistent results
Takes time to explain how plumbing systems work, not just fix the immediate issue
Competitive, fair pricing according to repeat customers
Perfect rating across all reviews collected so far

Worth knowing

As a smaller, individually-run business, booking ahead is worthwhile for non-urgent work

Reputation scorecardrank in London

Rating5 / 5

Review volume52 · 79th

Confidenceearly

Recency4 weeks ago

Info completenesssite · phone · hours

Rating breakdown98% 5-star

✓ VerifiedSource: Google

Our take: The pick for anyone who wants an ongoing relationship with a single trusted engineer rather than a rotating team, with years of repeat-customer trust behind the rating.

Website +447455223422 Directions

#5🕑 Open 7 days

TAISEI

5.034 Google reviews

TAISEI is a London plumbing business, with reviewers referring to the team by the trading name Plumboss, covering boiler installation, thermostat fitting and general plumbing and heating work. It has completed jobs including new boiler installs with extractor fan fitting and full certification provided on completion.

What people praise

Full boiler and thermostat installation completed with certification provided
Reviewers describe the work as proper, quick and polite
Repeat customers report consistently good experiences over multiple jobs
Perfect rating across all reviews collected so far

Worth knowing

No published address, so confirm coverage area directly before booking

Reputation scorecardrank in London

Rating5 / 5

Review volume34 · 74th

Confidenceearly

Recency2 months ago

Info completenessphone · hours

Rating breakdown100% 5-star

✓ VerifiedSource: Google

Our take: A dependable pick for boiler installation with proper certification, backed by repeat customers who have used the team for multiple projects.

+447999990571 Directions

London W1D 5QA

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Watch: 5 Best Water Heater Services in London (2026)

How we score

Every number on this page is computed from public Google data on the date shown, not from opinion or payment. Rating is the business’s live Google star average. Review volume is how many customers have rated them, measured against other London water heater and boiler engineers on this page. Confidence weighs the rating by that volume, so a 5.0 from over a hundred people carries more weight than a 5.0 from a few dozen. Recency reflects how recently customers are still leaving reviews. No business can pay to change these numbers.

How much does water heater and boiler work cost in London? (2026)

Pricing depends on whether you need a service, a repair or a full installation. One business on this page, Giovanni the Plumber, publishes hourly rates directly on their site, giving a useful benchmark for the wider market:

Job	Typical price
Plumbing and heating (hourly rate)	£80+VAT / hour
Gas and boiler work (hourly rate)	£85+VAT / hour
Boiler service	From £85+VAT
Boiler installation (boiler included)	From £2,400+VAT
Gas safety check (single appliance)	From £65

Rates sourced directly from Giovanni the Plumber’s published pricing (giovannitheplumber.com), verified August 2026. Materials, parking and congestion charge are added on top. Other engineers on this page do not publish fixed prices online, so confirm cost when you request a quote.

Serving all of London

These engineers cover Central and East London, with several serving the wider Greater London area. Searching for water heater services near me? Every listing below shows a live phone number so you can reach the closest option fast.

What to ask before you hire a water heater engineer

Are you Gas Safe registered for boiler and gas work?
Is the quote hourly or fixed, and what does it include?
Do you offer emergency or out-of-hours callouts?
Will I receive certification after a boiler installation or gas safety check?
What warranty do you offer on parts and labour?

Frequently asked questions

How did you choose these water heater and boiler engineers?

We started from every plumbing and heating engineer in London with a public Google presence, then ranked by rating, review volume, consistency and recency. See How we score above.

Are these rankings paid?

No. Rankings come from the public Google data in the scorecard. A business can pay to be a Featured Partner, which adds a badge and top placement, but that never changes another business’s score or position on the underlying data.

How often is this updated?

The data carries a verified date (August 2026 on this page). We refresh listings periodically so ratings and review counts stay current.

Do London plumbers offer emergency water heater repair?

Several of the engineers here, including Super Efficient and Reid Plumbing, have responded to same-day emergencies like burst pipes and no-hot-water situations.

How much does a boiler installation cost in London?

Based on published pricing from one business on this page, expect boiler installation from around £2,400 plus VAT including the boiler. Always get a written quote for your specific system.

The bottom line

Heating for London is the safe default on sheer track record and rating, while Giovanni the Plumber is the stronger call if you want a long-term, trusted relationship with one engineer. Get a written quote and confirm Gas Safe registration before any work starts.

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