- Companies
- Civil engineering
- Milton Keynes
- S.J.W. Maintenance Limited
S.J.W. Maintenance Limited
- Company number
- 04375842
- Incorporated
- 18 Feb 200224 years trading
- Registered office
- Suite 4 548-550 Elder House, Elder Gate, Milton Keynes, MK9 1LR
- Nature of business
- Construction of roads and motorways
S.J.W. Maintenance Limited is a 24-year-old private limited company registered in Milton Keynes, company number 04375842, one of 86 civil engineering contractors in Milton Keynes. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £13K (+23%) on the year before, to £70K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £70K | £30K | £4,152 | 0 | |
| 31 Dec 2024 | £57K | £2,620 | 0 | ||
| 31 Dec 2023 | £67K | £5,913 | 0 | ||
| 31 Dec 2022 | £96K | £58K | 0 | ||
| 31 Dec 2021 | £105K | £75K | 1 | ||
| 31 Dec 2020 | £54K | £104K | 0 | ||
| 31 Dec 2019 | £77K | £60K | |||
| 31 Dec 2018 | £71K | £93K | |||
| 31 Dec 2017 | £107K | £114K | £89K | ||
| 31 Dec 2016 | £98K | £82K | £76K |
Who runs and owns S.J.W. Maintenance Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| D*** D*** | Director | Mar 2002 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| Rj Langdon & Associates Limited | Secretary (company) | Mar 2002 | Oct 2016 |
| Swift Incorporations Limited | Corporate Nominee Secretary | Feb 2002 | Mar 2002 |
| Instant Companies Limited | Nominee director (company) | Feb 2002 | Mar 2002 |
Person with significant control
Charges (secured borrowing)
All 2 registered charges have been satisfied. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| National Westminster Bank PLC | Satisfied Aug 2023 | Feb 2006 |
| National Westminster Bank PLC | Satisfied Aug 2023 | Jan 2003 |
Where S.J.W. Maintenance Limited is registered
The registered office is in Milton Keynes (MK9), in the Milton Keynes local authority area, South East. Show MK9 1LR on a map.
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- Nano Roofing & Guttering LtdRoofers
- CTTK Mechanical Installation & Management LtdInstallers
- Liberty Roofing & Guttering LtdRoofers
- Skyshield Roofing Solutions LtdRoofers
- Olivia Does.. LimitedSpecialist contractors
- Dena Developments LtdProperty developers
- Revonix Group LtdMotor traders
Also registered at this address
1 other company uses the same registered office as S.J.W. Maintenance Limited.
- Lamprey Agriculture LimitedLandscapers and gardeners
What happens if S.J.W. 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 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
- 04375842
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 February 2002 (24 years ago)
- Registered office
- Suite 4 548-550 Elder House, Elder Gate, Milton Keynes, MK9 1LR
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 20 February 2026
- Charges (mortgages)
- 0 outstanding of 2 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Milton Keynes
Other active civil engineering contractors registered in Milton Keynes.
- S.R. Groundworks Limited2017
- Salivonchyk Ltd2026
- Solar FM Services Ltd2023
- Streetworks Consultancy Ltd2025
- Strong Energy Construction Ltd2026
- Sutha Traffic Management Ltd2024
- Timothy J Smith Limited2012
- Track, Protection & Signalling Ltd2009
All civil engineering contractors in Milton Keynes · All trades in Milton Keynes · Civil engineering across the UK
Frequently asked questions
When are S.J.W. Maintenance Limited's accounts due?
S.J.W. Maintenance Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is S.J.W. Maintenance Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is S.J.W. Maintenance Limited still trading?
S.J.W. 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 S.J.W. Maintenance Limited do?
S.J.W. Maintenance Limited is registered under Construction of roads and motorways (SIC 42110).
How old is S.J.W. Maintenance Limited?
S.J.W. Maintenance Limited was incorporated on 18 February 2002, 24 years ago.
Who runs S.J.W. Maintenance Limited?
S.J.W. Maintenance Limited has 1 active director, the longest-serving appointed in Mar 2002. Their names and service addresses are on the Companies House register.
Who owns S.J.W. Maintenance Limited?
One person or company has significant control of S.J.W. Maintenance Limited: an individual (owns 75% or more of the shares).
What is the penalty if S.J.W. 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 S.J.W. 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.