Promtec Ltd
- Company number
- 11078476
- Incorporated
- 23 Nov 20178 years trading
- Registered office
- LN12 Armstrong House First Avenue, Doncaster Finningley Airport, Doncaster, DN9 3GA
- Nature of business
- Repair of machinery; Development of building projects; Other construction installation; Other building completion and finishing
Promtec Ltd is a 8-year-old private limited company registered in Doncaster, company number 11078476, one of 137 machinery repair and installation companies in Doncaster. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 £18K (+86.2%) on the year before, to £38K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £40K against £5,303 owed within a year: 7.5 times cover.
- 2 employees on average, up from 1 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £38K | £40K | £5,303 | 2 | |
| 30 Nov 2024 | £21K | £109K | £93K | 1 | |
| 30 Nov 2023 | £20K | £27K | £12K | 2 | |
| 30 Nov 2022 | £12K | £16K | £3,788 | 4 | |
| 30 Nov 2021 | £17K | £27K | £9,867 | 4 | |
| 30 Nov 2020 | £25K | £48K | £23K | 3 | |
| 30 Nov 2019 | £12K | £23K | £12K | 3 | |
| 30 Nov 2018 | £9,307 | £20K | £11K | 3 |
Where Promtec Ltd is registered
The registered office is in Doncaster (DN9), in the Doncaster local authority area, Yorkshire and The Humber. Show DN9 3GA on a map.
Other trade companies in DN9
- Lsrec LtdElectricians
- Misterton Meadows LimitedProperty developers
- Misterton Paddock LimitedProperty developers
- Messingham Fields LimitedProperty developers
- G - Elite Aircraft Detailing LtdCleaning companies
- Epworth Flooring LtdFloor and wall tilers
- Josif Sales LtdMechanics and garages
- RM Home Renovations LtdFloor and wall tilers
Shared registered office
28 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Promtec 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 11078476
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 November 2017 (8 years ago)
- Registered office
- LN12 Armstrong House First Avenue, Doncaster Finningley Airport, Doncaster, DN9 3GA
- Nature of business
- Repair of machinery (SIC 33120)
Development of building projects (SIC 41100)
Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 10 June 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Doncaster
Other active machinery repair and installation companies registered in Doncaster.
- Pru Energy Ltd2023
- Rainpro Limited2023
- Re-Fit Plant & Machinery Limited2023
- Real Perfect Climate Limited2017
- Rectified Electrical Ltd2016
- RNB Overhauls Ltd2023
- Rob's Cycles Ltd2026
- RSC Electrical Ltd2014
All machinery repair and installation companies in Doncaster · All trades in Doncaster · Machinery repair and installation across the UK
Frequently asked questions
When are Promtec Ltd's accounts due?
Promtec Ltd's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Promtec Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Promtec Ltd still trading?
Promtec 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 Promtec Ltd do?
Promtec Ltd is registered under Repair of machinery (SIC 33120); Development of building projects (SIC 41100); Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is Promtec Ltd?
Promtec Ltd was incorporated on 23 November 2017, 8 years ago.
What is the penalty if Promtec 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 Promtec 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.