- Companies
- Plumbers and heating engineers
- London
- Cookham Plumbing and Heating Ltd
Cookham Plumbing and Heating Ltd
- Company number
- 10767075
- Incorporated
- 12 May 20179 years trading
- Registered office
- 27 Mortimer Street, London, W1T 3BL
- Nature of business
- Plumbing, heat and air-conditioning installation
Cookham Plumbing and Heating Ltd is a 9-year-old private limited company registered in London, company number 10767075, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Cookham Plumbing and Heating LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Finances
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 £3,497 on the year before, to £3,524.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £53K against £50K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £3,524 | £53K | £50K | 0 | |
| 31 May 2024 | £27 | £55K | £50K | 5 | |
| 31 May 2023 | -£7,430 | £55K | £51K | 4 | |
| 31 May 2022 | -£18K | £39K | £41K | 4 | |
| 31 May 2021 | -£11K | £36K | £18K | 4 | |
| 31 May 2020 | -£7,388 | £56K | £23K | 4 | |
| 31 May 2019 | -£8,321 | £13K | £29K | 2 | |
| 31 May 2018 | £4,056 | £11K | £25K |
Where Cookham Plumbing and Heating Ltd is registered
The registered office is in London (W1T), in the Westminster local authority area, London. Show W1T 3BL on a map.
Other trade companies in W1T
- Preschools Cleaning Company LtdCleaning companies
- Northheat Plumbing & Heating LtdPlumbers and heating engineers
- Leuk Lift Engineering UK LtdMachinery repair and installation
- Az Maintenance Services LimitedFinishing trades
- Braintree Property Service LtdBuilders
- Nona Construction & Retrofit LtdBuilders
- Denvav LimitedBuilders
- Marshall Roofing Services LtdRoofers
Also registered at this address
22 other companies use the same registered office as Cookham Plumbing and Heating Ltd.
- 57 Helix Road (London) LimitedProperty developers
- Darlketh LimitedProperty developers
- Fit Out Point LimitedFinishing trades
- Freeman & Mitchell Holdings Two LimitedProperty developers
- Freshford Properties LimitedProperty developers
- Gelbourne LimitedProperty developers
- Habillo LimitedProperty developers
- Haynes & Co Glass LtdGlaziers
- Karyan LimitedProperty developers
- Kingsmere Securities LimitedProperty developers
- Lucy Willcox Garden Design LtdLandscapers and gardeners
- Markneil Securities LimitedProperty developers
- Method Office Furniture Ltd.Finishing trades
- Moores Building & Construction LtdBuilders
- Parklans LimitedProperty developers
- Radflex Contract Services LtdSpecialist contractors
- Smart Rise Build LtdProperty developers
- Starcrest Homes (Hither Green) LtdProperty developers
- Starcrest Homes (Hounslow) LtdProperty developers
- Starcrest Homes LtdProperty developers
- Starcrest Resources LimitedProperty developers
- Widestates LimitedProperty developers
What happens if Cookham Plumbing and Heating 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10767075
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 May 2017 (9 years ago)
- Registered office
- 27 Mortimer Street, London, W1T 3BL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 11 May 2025
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.
- Cool and Plumb Ltd2025
- Cool Plumbings Inc Ltd2026
- Cool Trace Solutions Ltd2026
- Coolheat Experts Ltd2025
- Cooling and Heating Installations Ltd2026
- Coolio London Limited2026
- Cooltop Limited2010
- Coolways London Ltd2018
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Cookham Plumbing and Heating Ltd's accounts due?
Cookham Plumbing and Heating Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Cookham Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Cookham Plumbing and Heating Ltd still trading?
Cookham Plumbing and Heating Ltd is listed as active on the Companies House register (checked 12 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 Cookham Plumbing and Heating Ltd do?
Cookham Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Cookham Plumbing and Heating Ltd?
Cookham Plumbing and Heating Ltd was incorporated on 12 May 2017, 9 years ago.
What is the penalty if Cookham Plumbing and Heating 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 Cookham Plumbing and Heating Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.