- Companies
- Plumbers and heating engineers
- London
- City Builders and Plumber Ltd
City Builders and Plumber Ltd
- Company number
- 15721981
- Incorporated
- 15 May 20242 years trading
- Registered office
- 37 All Saints Close, London, N9 9AT
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation
City Builders and Plumber Ltd is a 2-year-old private limited company registered in London, company number 15721981, 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 City Builders and Plumber 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.
Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Where City Builders and Plumber Ltd is registered
The registered office is in London (N9), in the Enfield local authority area, London. Show N9 9AT on a map.
Other trade companies in N9
- Green X Construction LtdBuilders
- Enviro Decs Contract Painters LtdBuilders
- Lydex Services LimitedMotor traders
- Lincoln Construction & Infrastructure LtdBuilders
- Build and Install LtdBuilders
- Pro7 Accident Solutions LtdMechanics and garages
- Enfield Mobile Diagnostics LtdMechanics and garages
- Charlie Valentin LtdCleaning companies
What happens if City Builders and Plumber 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
- 15721981
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 May 2024 (2 years ago)
- Registered office
- 37 All Saints Close, London, N9 9AT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 14 May 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.
- City Flow Energy Ltd2018
- City Flow Plumbing & Heating 1 Ltd2026
- City Heating Solutions Ltd2023
- City Maintenance Services Ltd2015
- City Plumbing & Heating Limited2019
- City Plumbing 247 Ltd2026
- City Pro Fix Ltd2026
- Citywide Climate and Ventilation Ltd2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are City Builders and Plumber Ltd's accounts due?
City Builders and Plumber 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 City Builders and Plumber 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 City Builders and Plumber Ltd still trading?
City Builders and Plumber 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 City Builders and Plumber Ltd do?
City Builders and Plumber Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is City Builders and Plumber Ltd?
City Builders and Plumber Ltd was incorporated on 15 May 2024, 2 years ago.
What is the penalty if City Builders and Plumber 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 City Builders and Plumber 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.