- Source reference
- CBDU518570
- Licence class
- upper-tier
- Valid through
- Jan 2027
- Source checked
- 30 Jun 2026
Public evidence profile
London Efficiency Ltd
Credentials & registries
Waste carrier (Environment Agency)
Trust Score
60out of 100
- Rated 5.0 from 403 reviews
- 1 credential shown
How this score is worked out
Rating5.0 / 5
Review volume403
Independent sources1 independent public source
Credentials1 credential shown
How this score is made up
What customers say50.9 of 60
Independent checks4.1 of 30
Track record5 of 10
See the independent checks
- Licences and credentials1.2 of 10.3
- Ways to reach them2.9 of 3.4
- Reviewed on more than one site0 of 5.1
- Registered company details0 of 5.1
- Photos of their work0 of 4.3
- Industry recognition0 of 1.7
Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
Trust at a glance
1 thing checkedWhat we can verify about London Efficiency Ltd
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
See the full verification checklist for London Efficiency Ltd →Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
From customer reviews
What customers consistently say
Recurring themes from 4 customer reviews on Checkatrade.
“London Efficiency carried out new high efficiency boiler installation works in my house in September 2022 and I was delighted with the high standard of their works” · Checkatrade, 11 Feb 2026
“Had ordered the wrong unit, so David kindly went out and sourced a replacement himself which meant he could finish the job that day.” · Checkatrade, 12 Oct 2024
Reviews · public evidence
What customers say
These reviews are published independently on the named public source below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
5.0out of 5
Where these reviews are published
- Checkatrade403 reviews
Highlights
“London Efficiency carried out new high efficiency boiler installation works in my house in September 2022 and I was delighted with the high standard of their works and the price for the job as it was about half of what I was quoted by another nearby company. In September 2025 they installed a new shower unit and they did a first class job at a reasonable price. For about 3 years I have had shower with a shelf which is not stable and recently I tried to fix it but failed to do it and I thought it might be impossible to have it fixed but I called London Efficiency and they came around and succee”
“Completed the boiler service for a good price. Also fixed a minor leak I had under my sink whilst on site. Gave some sound advice for other niggles I have around the flat, and followed up with a no obligation quotation. They were recommended by a neighbour, would happily recommend to others.”
“Good communication and prompt arrival. Very friendly and professional. Had ordered the wrong unit, so David kindly went out and sourced a replacement himself which meant he could finish the job that day. Have used London Efficiency a number of times now and haven’t used anyone else since. Highly recommend.”
Detailed reviews
These are the individual reviews we hold for London Efficiency Ltd, including the highlights above. The 403 headline total is the review volume reported across public review sources.
London Efficiency carried out new high efficiency boiler installation works in my house in September 2022 and I was delighted with the high standard of their works and the price for the job as it was about half of what I was quoted by another nearby company. In September 2025 they installed a new shower unit and they did a first class job at a reasonable price. For about 3 years I have had shower with a shelf which is not stable and recently I tried to fix it but failed to do it and I thought it might be impossible to have it fixed but I called London Efficiency and they came around and succee
Completed the boiler service for a good price. Also fixed a minor leak I had under my sink whilst on site. Gave some sound advice for other niggles I have around the flat, and followed up with a no obligation quotation. They were recommended by a neighbour, would happily recommend to others.
Good communication and prompt arrival. Very friendly and professional. Had ordered the wrong unit, so David kindly went out and sourced a replacement himself which meant he could finish the job that day. Have used London Efficiency a number of times now and haven’t used anyone else since. Highly recommend.
Local context
Rated 5.0, above the local average for builders in London
Across 2630 builders in London, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Sources
2 named public sourcesWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Registers and membership directories
Check dates vary by source. Where we hold a date, the check shows it.
Services they list
Bathroom & Kitchen PlumbingBlocked BathsBlocked SinksBlocked ToiletsGeneral PlumbingPipe FitterPlumbing RepairsPower FlushingRadiator InstallationRadiator RepairRadiator Thermostat Valve InstallationRadiator Thermostat Valve Repair
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
London
The areas they list covering on a public directory; confirm they cover your address before you book.
Your own checks
What to check before you hire
Worth checking yourself
Their public evidence comes from a single source. Look them up on another site before deciding.
Verify at the sourceCheck them yourself
This trade isn't licensed in the UK, so anyone can set up. TrustMark is the only Government-endorsed quality scheme for work in and around the home - check whether they're registered, or find a TrustMark-registered business.
Check the TrustMark registerNever pay a large deposit up front. Agree a staged payment schedule tied to completed milestones, and hold a small retention until snagging is done.
Get it in writing: an itemised quote with scope, materials, start and finish dates, and how any changes (variations) will be priced.
Be wary of a cash-only price or pressure to start tomorrow. Both are red flags for an unaccountable job.
Want an extra legitimacy check? Run the Cowboy Checker on London Efficiency Ltd before you contact them.
Run Cowboy Checker →Good to know
Common questions about London Efficiency Ltd
Is London Efficiency Ltd a legitimate business?
London Efficiency Ltd has 403 independent public reviews, rated 5 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about London Efficiency Ltd?
London Efficiency Ltd has 403 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know London Efficiency Ltd's reviews are genuine?
London Efficiency Ltd's 403 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Is London Efficiency Ltd qualified and accredited?
We hold 1 independently sourced credential for London Efficiency Ltd, including Waste carrier (Environment Agency). Each is attributed to the body that issued it in the credentials section. For example, Waste carrier (Environment Agency) is the Environment Agency: the regulator a trader must register with to carry waste or hold an environmental permit in England.
What does London Efficiency Ltd specialise in?
London Efficiency Ltd lists specialist services including Bathroom & Kitchen Plumbing, Blocked Baths, Blocked Sinks, Blocked Toilets, General Plumbing, Pipe Fitter. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
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