- Companies
- Civil engineering
- Slough
- Astron Engineers Limited
Astron Engineers Limited
- Company number
- 08108789
- Incorporated
- 18 Jun 201214 years trading
- Registered office
- 238 Long Readings Lane, Slough, SL2 1QF
- Nature of business
- Construction of other civil engineering projects n.e.c.
Astron Engineers Limited is a 14-year-old private limited company registered in Slough, company number 08108789, one of 39 civil engineering contractors in Slough. 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 up £4,939 (+30.9%) on the year before, to £21K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £28K against £3,879 owed within a year: 7.2 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £21K | £28K | £3,879 | 2 | |
| 30 Jun 2024 | £16K | £23K | £2,967 | 2 | |
| 30 Jun 2023 | £17K | £28K | £3,261 | 2 | |
| 30 Jun 2022 | £27K | £43K | £6,318 | 2 | |
| 30 Jun 2021 | £18K | £38K | £6,197 | 2 | |
| 30 Jun 2020 | £25K | £41K | £4,795 | 2 | |
| 30 Jun 2019 | £25K | £36K | £11K | ||
| 30 Jun 2018 | £15K | £29K | £15K | ||
| 30 Jun 2017 | £11K | £1,020 | £28K | £19K | |
| 30 Jun 2016 | £6,227 | £3,843 | £29K | £20K |
Where Astron Engineers Limited is registered
The registered office is in Slough (SL2), in the Slough local authority area, South East. Show SL2 1QF on a map.
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- J Nomah LtdBuilders
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- All Perfect Services LtdBuilders
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Also registered at this address
1 other company uses the same registered office as Astron Engineers Limited.
- NSK Construction LtdBuilders
What happens if Astron Engineers 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
- 08108789
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 June 2012 (14 years ago)
- Registered office
- 238 Long Readings Lane, Slough, SL2 1QF
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 3 June 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 Slough
Other active civil engineering contractors registered in Slough.
- Atc Rail Consulting Ltd2016
- C Gibbs Ltd2023
- C Radu & Son Ltd2024
- D.W.Francis Limited2009
- Dil Services Con Ltd2026
- Dils Civil Engineering Ltd2022
- Falcon Surfacing Limited2011
- HS Workforce Limited2017
All civil engineering contractors in Slough · All trades in Slough · Civil engineering across the UK
Frequently asked questions
When are Astron Engineers Limited's accounts due?
Astron Engineers 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 Astron Engineers 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 Astron Engineers Limited still trading?
Astron Engineers 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 Astron Engineers Limited do?
Astron Engineers Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Astron Engineers Limited?
Astron Engineers Limited was incorporated on 18 June 2012, 14 years ago.
What is the penalty if Astron Engineers 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 Astron Engineers 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.