- Companies
- Electricians
- Orpington
- MJ Armstrong Building Services Limited
MJ Armstrong Building Services Limited
- Company number
- 11500163
- Incorporated
- 3 Aug 20188 years trading
- Registered office
- 14 Anglesea Road, Orpington, BR5 4AW
- Nature of business
- Electrical installation
MJ Armstrong Building Services Limited is a 8-year-old private limited company registered in Orpington, company number 11500163, one of 91 electrical contractors in Orpington. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £10K (+63.8%) on the year before, to £27K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £57K against £30K owed within a year: 1.9 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £27K | £57K | £30K | 3 | |
| 31 Aug 2024 | £16K | £49K | £33K | 2 | |
| 31 Aug 2023 | £16K | £49K | £33K | 2 | |
| 31 Aug 2022 | £9,986 | £34K | £24K | 2 | |
| 31 Aug 2021 | £4,130 | £28K | £25K | 2 | |
| 31 Aug 2020 | £47 | £9,381 | £12K | 1 | |
| 31 Aug 2019 | £88 | £2,675 | £5,906 | 1 |
Where MJ Armstrong Building Services Limited is registered
The registered office is in Orpington (BR5), in the Bromley local authority area, London. Show BR5 4AW on a map.
Other trade companies in BR5
- SML Resources LtdMechanics and garages
- A.P.E. Maintenance LtdFacilities management
- Daisy Fresh LtdCleaning companies
- GCP FM Group LtdFacilities management
- Enp Global LtdBuilders
- Hawk Landscapes LtdLandscapers and gardeners
- Rankins Roofing LtdRoofers
- Jet Clear Drainage Solutions LtdCleaning companies
What happens if MJ Armstrong Building 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 11500163
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 August 2018 (8 years ago)
- Registered office
- 14 Anglesea Road, Orpington, BR5 4AW
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 9 December 2025
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Orpington
Other active electrical contractors registered in Orpington.
- MJC Electric Ltd2007
- MJT Electrical & Maintenance Ltd2022
- N J Contracting Services Limited2025
- Nap Electrical Services Limited2025
- Oakridge Electrical Limited2015
- Oakway Electrical Limited2017
- P2Z Limited2017
- Paragon Electrical Services Limited1995
All electrical contractors in Orpington · All trades in Orpington · Electricians across the UK
Frequently asked questions
When are MJ Armstrong Building Services Limited's accounts due?
MJ Armstrong Building Services Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is MJ Armstrong Building Services Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is MJ Armstrong Building Services Limited still trading?
MJ Armstrong Building 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 MJ Armstrong Building Services Limited do?
MJ Armstrong Building Services Limited is registered under Electrical installation (SIC 43210).
How old is MJ Armstrong Building Services Limited?
MJ Armstrong Building Services Limited was incorporated on 3 August 2018, 8 years ago.
What is the penalty if MJ Armstrong Building 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 MJ Armstrong Building 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.