- Companies
- Plumbers and heating engineers
- London
- Promakers Ltd
Promakers Ltd
- Company number
- 16725673
- Incorporated
- 17 Sep 20251 year trading
- Registered office
- 9 Tillotson Road, London, N9 9AQ
- Nature of business
- Plumbing, heat and air-conditioning installation; Plastering; Floor and wall covering; Painting
Promakers Ltd is a 1-year-old private limited company registered in London, company number 16725673, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 17 June 2027, and its first CT600 is due at HMRC on 16 September 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 Promakers Ltd is registered
The registered office is in London (N9), in the Enfield local authority area, London. Show N9 9AQ on a map.
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What happens if Promakers 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 17 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Jun 2027 to 17 Jul 2027 | £150 |
| 1 to 3 months late | 18 Jul 2027 to 17 Sep 2027 | £375 |
| 3 to 6 months late | 18 Sep 2027 to 17 Dec 2027 | £750 |
| More than 6 months late | From 18 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16725673
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 September 2025 (1 year ago)
- Registered office
- 9 Tillotson Road, London, N9 9AQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Plastering (SIC 43310)
Floor and wall covering (SIC 43330)
Painting (SIC 43341) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 8 October 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.
- Prominent Plumbing Limited2022
- Prompt Services Limited1994
- Propart Fire Protection Limited2017
- Property Heating Ltd2015
- Property Links Global Limited2026
- Property Partners(Lon) Ltd2023
- Property Plumbing Ltd2026
- Proplumbx Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Promakers Ltd's accounts due?
Promakers Ltd's next accounts are due at Companies House by 17 June 2027 (in 247 days), covering the period to 30 September 2026.
When is Promakers 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 16 September 2026, due by 16 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Promakers Ltd still trading?
Promakers 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 Promakers Ltd do?
Promakers Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Plastering (SIC 43310); Floor and wall covering (SIC 43330); Painting (SIC 43341).
How old is Promakers Ltd?
Promakers Ltd was incorporated on 17 September 2025, 1 year ago.
What is the penalty if Promakers 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 Promakers 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.