- Companies
- Plumbers and heating engineers
- Milton Keynes
- All in One MK Ltd
All in One MK Ltd
- Company number
- 16887904
- Incorporated
- 3 Dec 2025
- Registered office
- 268B Conniburrow Boulevard, Conniburrow, Milton Keynes, MK14 7AG
- Nature of business
- Plumbing, heat and air-conditioning installation; Roofing activities
All in One MK Ltd is a newly incorporated private limited company registered in Milton Keynes, company number 16887904, one of 197 plumbing and heating companies in Milton Keynes. Its next accounts are due at Companies House on 3 September 2027, and its first CT600 is due at HMRC on 2 December 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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Who runs and owns All in One MK Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| K*** B*** | Director | Dec 2025 |
Person with significant control
Where All in One MK Ltd is registered
The registered office is in Milton Keynes (MK14), in the Milton Keynes local authority area, South East. Show MK14 7AG on a map.
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- Atoz MK Cleaning LtdCleaning companies
- Nio Capital LtdInstallers
- Beacon Kitchens & Interiors LtdInstallers
- Prestige Cleaning Services LimitedCleaning companies
- MMJ-Qualityconsults LtdJoiners and carpenters
- Pib Cleaning Services LtdCleaning companies
- Ali Servicing LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as All in One MK Ltd.
- MK Plumber & Gas LimitedPlumbers and heating engineers
What happens if All in One MK 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 3 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Sep 2027 to 3 Oct 2027 | £150 |
| 1 to 3 months late | 4 Oct 2027 to 3 Dec 2027 | £375 |
| 3 to 6 months late | 4 Dec 2027 to 3 Mar 2028 | £750 |
| More than 6 months late | From 4 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 16887904
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2025
- Registered office
- 268B Conniburrow Boulevard, Conniburrow, Milton Keynes, MK14 7AG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Roofing activities (SIC 43910) - Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
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 Milton Keynes
Other active plumbing and heating companies registered in Milton Keynes.
- Amj Heating&Construction Ltd2019
- Anglia Heat Pumps Ltd2021
- Ansell Mechanical Ltd2000
- Aqua Gas Protocol Ac Ltd2023
- Aqua Gas Protocol Ltd2013
- Avenue Plumbing and Heating (MK) Limited2026
- B Brill Plumbing and Heating Ltd2016
- Badsha BD Ltd2026
All plumbing and heating companies in Milton Keynes · All trades in Milton Keynes · Plumbers and heating engineers across the UK
Frequently asked questions
When are All in One MK Ltd's accounts due?
All in One MK Ltd's next accounts are due at Companies House by 3 September 2027 (in 325 days), covering the period to 31 December 2026.
When is All in One MK 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 2 December 2026, due by 2 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is All in One MK Ltd still trading?
All in One MK 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 All in One MK Ltd do?
All in One MK Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Roofing activities (SIC 43910).
How old is All in One MK Ltd?
All in One MK Ltd was incorporated on 3 December 2025, less than a year ago.
Who runs All in One MK Ltd?
All in One MK Ltd has 1 active director, the longest-serving appointed in Dec 2025. Their names and service addresses are on the Companies House register.
Who owns All in One MK Ltd?
One person or company has significant control of All in One MK Ltd: an individual (owns 75% or more of the shares).
What is the penalty if All in One MK 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 All in One MK 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.