- Companies
- Specialist contractors
- Watlington
- Blastoff GB Ltd
Blastoff GB Ltd
- Company number
- 01816842
- Incorporated
- 16 May 198442 years trading
- Registered office
- 42 High Street, Watlington, Oxon, OX49 5PY
- Nature of business
- Other specialised construction activities n.e.c.; Other building and industrial cleaning activities
Blastoff GB Ltd is a 42-year-old private limited company registered in Watlington, company number 01816842, one of the UK's specialist construction companies. 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 £80K (-36.5%) on the year before, to £139K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- 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 | £139K | £85K | 2 | ||
| 30 Jun 2024 | £219K | £70K | 2 | ||
| 30 Jun 2023 | £234K | £142K | 2 | ||
| 30 Jun 2022 | £155K | £95K | 2 | ||
| 30 Jun 2021 | £127K | £75K | 2 | ||
| 30 Jun 2020 | £118K | £65K | 2 | ||
| 30 Jun 2019 | £90K | £63K | |||
| 30 Jun 2018 | £83K | £106K | £68K | ||
| 30 Jun 2017 | £133K | £129K | £55K | ||
| 30 Jun 2016 | £195K | £77K | £184K | £49K |
Where Blastoff GB Ltd is registered
The registered office is in Watlington (OX49), in the South Oxfordshire local authority area, South East. Show OX49 5PY on a map.
Other trade companies in OX49
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- J.McLaren Electrical LtdElectricians
- SLB Services LtdCleaning companies
- Southern Wall Media LtdFinishing trades
- Earthstone Design & Build LtdBuilders
- KML Scaffolding LtdScaffolders
- E2Carbon LtdBuilders
- MS66 LtdSpecialist contractors
What happens if Blastoff GB Ltd 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
- 01816842
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 May 1984 (42 years ago)
- Registered office
- 42 High Street, Watlington, Oxon, OX49 5PY
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Other building and industrial cleaning activities (SIC 81229) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 31 October 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Watlington
Other active specialist construction companies registered in Watlington.
All specialist construction companies in Watlington · All trades in Watlington · Specialist contractors across the UK
Frequently asked questions
When are Blastoff GB Ltd's accounts due?
Blastoff GB Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Blastoff GB Ltd'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 Blastoff GB Ltd still trading?
Blastoff GB Ltd 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 Blastoff GB Ltd do?
Blastoff GB Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Other building and industrial cleaning activities (SIC 81229).
How old is Blastoff GB Ltd?
Blastoff GB Ltd was incorporated on 16 May 1984, 42 years ago.
What is the penalty if Blastoff GB Ltd 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 Blastoff GB Ltd 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.