- Companies
- Civil engineering
- Sidcup
- Sja Technical Services Limited
Sja Technical Services Limited
- Company number
- 11246088
- Incorporated
- 9 Mar 20188 years trading
- Registered office
- 12 Hatherley Road, Sidcup, DA14 4DT
- Nature of business
- Construction of other civil engineering projects n.e.c.
Sja Technical Services Limited is a 8-year-old private limited company registered in Sidcup, company number 11246088, one of 63 civil engineering contractors in Sidcup. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 2028.
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 £11K on the year before, to £12K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £70K against £61K owed within a year: 1.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2026 | £12K | £30K | £70K | £61K | 2 |
| 30 Apr 2025 | £761 | £1,661 | £40K | £40K | 2 |
| 30 Apr 2024 | £2,372 | £2,225 | £41K | £40K | 1 |
| 31 Mar 2023 | £1,140 | £1,602 | £49K | £50K | 1 |
| 31 Mar 2022 | £9,648 | £983 | £46K | £33K | 1 |
| 31 Mar 2021 | £13K | £11K | £52K | £33K | 1 |
| 31 Mar 2020 | £11K | £7,027 | £29K | £23K | 1 |
| 31 Mar 2019 | £3,161 | £173 | £22K | £24K | 1 |
Where Sja Technical Services Limited is registered
The registered office is in Sidcup (DA14), in the Bexley local authority area, London. Show DA14 4DT on a map.
Other trade companies in DA14
- Evlor LtdElectricians
- Pfe Services LimitedElectricians
- CJM Property Services LimitedFinishing trades
- Top Local Trader LtdBuilders
- Bassett Electrical Group LimitedElectricians
- Flatline Flooring LtdFloor and wall tilers
- LDT Service's LimitedScaffolders
- Old Maidstone Road Hand Car Wash LtdMechanics and garages
Shared registered office
427 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Sja Technical 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 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2028 to 29 Feb 2028 | £150 |
| 1 to 3 months late | 1 Mar 2028 to 30 Apr 2028 | £375 |
| 3 to 6 months late | 1 May 2028 to 31 Jul 2028 | £750 |
| More than 6 months late | From 1 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 2029 | 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
- 11246088
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2018 (8 years ago)
- Registered office
- 12 Hatherley Road, Sidcup, DA14 4DT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2026
- Last confirmation statement
- 8 March 2026
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 Sidcup
Other active civil engineering contractors registered in Sidcup.
- South Surfacing Limited2025
- Sri P-Way Engineering Limited2015
- Thompson Welding & Construction Ltd2017
- Tickner Tracks Limited2016
- Track Air Consultants Limited2019
- Tydal Engineering Ltd2019
- Wilson Engineering Solutions Services Limited2024
- Woodham Investments Limited2014
All civil engineering contractors in Sidcup · All trades in Sidcup · Civil engineering across the UK
Frequently asked questions
When are Sja Technical Services Limited's accounts due?
Sja Technical Services Limited's next accounts are due at Companies House by 31 January 2028 (in 476 days), covering the period to 30 April 2027.
When is Sja Technical Services Limited's CT600 due?
The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.
Is Sja Technical Services Limited still trading?
Sja Technical 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 Sja Technical Services Limited do?
Sja Technical Services Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Sja Technical Services Limited?
Sja Technical Services Limited was incorporated on 9 March 2018, 8 years ago.
What is the penalty if Sja Technical 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 Sja Technical 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.