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- M4 Maintenance Limited
Company profile · Cleaning companies
M4 Maintenance Limited
M4 Maintenance Limited is a 1-year-old private limited company registered in Welwyn Garden City, company number 16251632, one of 28 cleaning companies in Welwyn Garden City. Its next accounts are due at Companies House on 13 November 2026, and its first CT600 is due at HMRC on 12 February 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 M4 Maintenance Limited is registered
The registered office is in Welwyn Garden City (AL7), in the Welwyn Hatfield local authority area, East of England. Show AL7 2AS on a map.
Other trade companies in AL7
- Mechanicalwise LtdInstallers
- Azalea Services LimitedSpecialist contractors
- Malmech and Mannion LimitedMechanics and garages
- T&D Construction Group LtdFinishing trades
- Vertec Roofing and Building LtdRoofers
- Selectlane LtdMotor traders
- Af Pressure Washing LtdCleaning companies
- Jet Professional LtdCleaning companies
What happens if M4 Maintenance Limited 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 13 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Nov 2026 to 13 Dec 2026 | £150 |
| 1 to 3 months late | 14 Dec 2026 to 13 Feb 2027 | £375 |
| 3 to 6 months late | 14 Feb 2027 to 13 May 2027 | £750 |
| More than 6 months late | From 14 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16251632
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 February 2025 (1 year ago)
- Registered office
- 17 Brooksfield, Welwyn Garden City, AL7 2AS
- Nature of business
- General cleaning of buildings (SIC 81210)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 12 February 2026
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Welwyn Garden City
Other active cleaning companies registered in Welwyn Garden City.
- Nola's Cleaning Limited2026
- Pram Fresh Ltd2022
- R&Cclean 4U Limited2020
- R&Cclean 4U Ltd Ltd2026
- Rac Av Ltd2018
- Reach & Clean Exteriors Ltd2023
- Sha Cleaning Services Ltd2023
- Sweepsmart Limited2018
All cleaning companies in Welwyn Garden City · All trades in Welwyn Garden City · Cleaning companies across the UK
Frequently asked questions
When are M4 Maintenance Limited's accounts due?
M4 Maintenance Limited's next accounts are due at Companies House by 13 November 2026 (in 32 days), covering the period to 28 February 2026.
When is M4 Maintenance Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 12 February 2026, due by 12 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is M4 Maintenance Limited still trading?
M4 Maintenance Limited 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 M4 Maintenance Limited do?
M4 Maintenance Limited is registered under General cleaning of buildings (SIC 81210).
How old is M4 Maintenance Limited?
M4 Maintenance Limited was incorporated on 13 February 2025, 1 year ago.
What is the penalty if M4 Maintenance Limited 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 M4 Maintenance Limited 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.