- Companies
- Plumbers and heating engineers
- London
- London Water Filter Ltd
London Water Filter Ltd
- Company number
- 16913259
- Incorporated
- 16 Dec 2025
- Registered office
- 21 Upper Tulse Hill, London, SW2 2SD
- Nature of business
- Plumbing, heat and air-conditioning installation; Retail sale via mail order houses or via Internet
London Water Filter Ltd is a newly incorporated private limited company registered in London, company number 16913259, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 16 September 2027, and its first CT600 is due at HMRC on 15 December 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where London Water Filter Ltd is registered
The registered office is in London (SW2), in the Lambeth local authority area, London. Show SW2 2SD on a map.
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What happens if London Water Filter 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 16 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Sep 2027 to 16 Oct 2027 | £150 |
| 1 to 3 months late | 17 Oct 2027 to 16 Dec 2027 | £375 |
| 3 to 6 months late | 17 Dec 2027 to 16 Mar 2028 | £750 |
| More than 6 months late | From 17 Mar 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
- 16913259
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 December 2025
- Registered office
- 21 Upper Tulse Hill, London, SW2 2SD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Retail sale via mail order houses or via Internet (SIC 47910) - Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Londondrainagegroup Ltd2026
- Loo and Behold Plumbing and Heating Services Ltd2026
- Louis and Son's Plumbing and Heating Services Ltd2023
- Louis Sparrow Ltd2020
- Loumac Plumbing & Heating Limited2004
- Love Green Heat Pumps Ltd2026
- Love Heating Ltd2019
- Love Heating Services Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are London Water Filter Ltd's accounts due?
London Water Filter Ltd's next accounts are due at Companies House by 16 September 2027 (in 338 days), covering the period to 31 December 2026.
When is London Water Filter Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 15 December 2026, due by 15 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is London Water Filter Ltd still trading?
London Water Filter 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 Water Filter Ltd do?
London Water Filter Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Retail sale via mail order houses or via Internet (SIC 47910).
How old is London Water Filter Ltd?
London Water Filter Ltd was incorporated on 16 December 2025, less than a year ago.
What is the penalty if London Water Filter 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 Water Filter 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.