- Companies
- Specialist contractors
- Ruislip
- MK Building Contractors 25 Ltd
MK Building Contractors 25 Ltd
- Company number
- 12984077
- Incorporated
- 29 Oct 20205 years trading
- Registered office
- 20A Long Drive, Ruislip, HA4 0HG
- Nature of business
- Other specialised construction activities n.e.c.
MK Building Contractors 25 Ltd is a 5-year-old private limited company registered in Ruislip, company number 12984077, one of 107 specialist construction companies in Ruislip. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £17K (+39.8%) on the year before, to -£26K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £5,221 against £21K owed within a year: 0.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£26K | £5,221 | £21K | 1 | |
| 31 Oct 2024 | -£43K | £3,994 | £29K | 1 | |
| 31 Oct 2023 | -£44K | £8,194 | £23K | 2 | |
| 31 Oct 2022 | £30K | £56K | £8,729 | 2 | |
| 31 Oct 2021 | £37K | £105K | £67K | 1 |
Where MK Building Contractors 25 Ltd is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 0HG on a map.
Other trade companies in HA4
- SSC London LtdGroundworks and demolition
- DCR Industriltdal LtdPainters and decorators
- Katardino Monten for General Contracting and Supplies LtdCivil engineering
- Apex Build & Move LtdBuilders
- Ridgeway Building Contracts LimitedProperty developers
- Azya Farah LtdBuilders
- Howdens Roofing & Guttering LimitedRoofers
- Vetro Glazing LimitedGlaziers
Also registered at this address
1 other company uses the same registered office as MK Building Contractors 25 Ltd.
- P.A.V. Drylining LtdBuilders
What happens if MK Building Contractors 25 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 12984077
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 October 2020 (5 years ago)
- Registered office
- 20A Long Drive, Ruislip, HA4 0HG
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 28 October 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Ruislip
Other active specialist construction companies registered in Ruislip.
- Morgan’S Lifting Services Limited2018
- National Building Operations Limited2024
- Naysha Limited2026
- Nazagor Ltd2021
- Noid Tech and Design Services Ltd2024
- O'Driscoll & Sons Limited2010
- Oakwood Tree Surgery Ltd2022
- On Facade Limited2014
All specialist construction companies in Ruislip · All trades in Ruislip · Specialist contractors across the UK
Frequently asked questions
When are MK Building Contractors 25 Ltd's accounts due?
MK Building Contractors 25 Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is MK Building Contractors 25 Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is MK Building Contractors 25 Ltd still trading?
MK Building Contractors 25 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 MK Building Contractors 25 Ltd do?
MK Building Contractors 25 Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is MK Building Contractors 25 Ltd?
MK Building Contractors 25 Ltd was incorporated on 29 October 2020, 5 years ago.
What is the penalty if MK Building Contractors 25 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 MK Building Contractors 25 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.