- Company number
- 12065668
- Incorporated
- 24 Jun 20197 years trading
- Registered office
- 293 Kenton Lane, Harrow, Middx, HA3 8RR
- Nature of business
- Construction of domestic buildings; Other service activities n.e.c.
Aj Maintenance Services Limited is a 7-year-old private limited company registered in Harrow, company number 12065668, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 down £13K (-95.8%) on the year before, to -£27K.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- Current assets of £2,342 against £33K owed within a year: 0.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£27K | £2,342 | £33K | 2 | |
| 30 Jun 2024 | -£14K | £3,547 | £23K | 2 | |
| 30 Jun 2023 | -£8,581 | £1,353 | £17K | 2 | |
| 30 Jun 2022 | -£7,388 | £2,550 | £9,970 | 2 | |
| 30 Jun 2021 | £14K | £30K | £16K | 2 | |
| 30 Jun 2020 | -£300 | £2,366 | £2,666 | 2 |
Where Aj Maintenance Services Limited is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 8RR on a map.
Other trade companies in HA3
- M&M Team Solutions LimitedCleaning companies
- Asr234 LimitedCivil engineering
- Shine Bright With NV LtdMechanics and garages
- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
- Add22 LtdCivil engineering
- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
Also registered at this address
19 other companies use the same registered office as Aj Maintenance Services Limited.
- Av Home Improvement Services LtdSpecialist contractors
- Belmont Service Centre LimitedMechanics and garages
- Building, Engineering & Construction Management LtdProperty developers
- Cement Plus UK LimitedBuilders
- CNL Heating LtdPlumbers and heating engineers
- Constructo LtdProperty developers
- Coopers 2 U LimitedFinishing trades
- Delaney Design & Build LimitedBuilders
- Hav Services LtdCivil engineering
- Herts Waste LimitedPlumbers and heating engineers
- Igp Plastering Specialist LimitedPlasterers
- Orka Real Estate LtdProperty developers
- P S Decor LtdInstallers
- Project Commitment LimitedProperty developers
- S & S Building Contractors (UK) LimitedBuilders
- SM Auto Repairs LimitedMotor traders
- Soreng LimitedSpecialist contractors
- T.L. Projects LimitedLandscapers and gardeners
- The Secret Landscape Company LimitedBuilders
What happens if Aj Maintenance Services 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12065668
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 June 2019 (7 years ago)
- Registered office
- 293 Kenton Lane, Harrow, Middx, HA3 8RR
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other service activities n.e.c. (SIC 96090) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 23 June 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Harrow
Other active building contractors registered in Harrow.
- Ak Builderss Ltd2021
- Akm Construction 2023 Ltd2023
- Akoni Kitchen & Bathrooms Ltd2025
- Al Steelfixing Ltd2021
- Alan C Ford (Roy Road) Ltd2020
- Alcomfix Ltd2026
- Ald Creators for Building and Decoration Ltd2023
- Alder Building Services Ltd2026
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Aj Maintenance Services Limited's accounts due?
Aj Maintenance Services Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Aj Maintenance Services Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Aj Maintenance Services Limited still trading?
Aj Maintenance Services 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 Aj Maintenance Services Limited do?
Aj Maintenance Services Limited is registered under Construction of domestic buildings (SIC 41202); Other service activities n.e.c. (SIC 96090).
How old is Aj Maintenance Services Limited?
Aj Maintenance Services Limited was incorporated on 24 June 2019, 7 years ago.
What is the penalty if Aj Maintenance Services 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 Aj Maintenance Services 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.