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- London Efficiency Ltd
Company profile · Plumbers and heating engineers
London Efficiency Ltd
London Efficiency Ltd is a 10-year-old private limited company registered in London, company number 09977929, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 December 2025, as filed at Companies House.
London Efficiency Ltd over the years
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £29K (+13.4%) on the year before, to £241K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £328K against £149K owed within a year: 2.2 times cover.
- 9 employees on average, down from 10 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £241K | £208K | £328K | £149K | 9 |
| 31 Dec 2024 | £212K | £211K | £300K | £138K | 10 |
| 31 Dec 2023 | £132K | £169K | £251K | £137K | 10 |
| 31 Dec 2022 | £106K | £123K | £258K | £157K | 12 |
| 31 Dec 2021 | £89K | £156K | £258K | £160K | 11 |
| 31 Dec 2020 | £53K | £198K | £122K | 9 | |
| 31 Dec 2019 | £45K | £126K | £110K | 7 | |
| 31 Dec 2018 | £51K | £124K | £105K | ||
| 31 Dec 2017 | £4,643 | £34K | £44K | ||
| 31 Dec 2016 | £29K | £39K | £51K | £26K |
Where London Efficiency Ltd is registered
The registered office is in London (SW6), in the Hammersmith and Fulham local authority area, London. Show SW6 6BA on a map.
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- Euroconsturction LimitedBuilders
- Basileus 17 Construction LtdBuilders
- Earthcom LtdBuilders
- Siren Plates LimitedMotor traders
- Catteau Cosntruction LtdInstallers
- R&L Building Projects LtdBuilders
- Fulham Palace Properties LimitedProperty developers
Also registered at this address
1 other company uses the same registered office as London Efficiency Ltd.
- Idac Developments LimitedProperty developers
What happens if London Efficiency Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 09977929
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 January 2016 (10 years ago)
- Registered office
- 244 Munster Road, London, SW6 6BA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 1 February 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- London Emergency Drainage and Plumbing Ltd2026
- London Emergency Plumbing & Drainage Ltd2025
- London Fireplace Specialist Ltd2013
- London Flows Ltd2021
- London Gas Electric & Aircon 24/7 Ltd2025
- London Gas Services Ltd2024
- London Habitat Co Property Services Ltd2026
- London Heat and Gas Ltd2017
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are London Efficiency Ltd's accounts due?
London Efficiency Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is London Efficiency Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is London Efficiency Ltd still trading?
London Efficiency Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does London Efficiency Ltd do?
London Efficiency Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is London Efficiency Ltd?
London Efficiency Ltd was incorporated on 29 January 2016, 10 years ago.
What is the penalty if London Efficiency Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View London Efficiency Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.