- Companies
- Civil engineering
- St Albans
- Eastham Hydro Limited
Eastham Hydro Limited
- Company number
- 11006221
- Incorporated
- 10 Oct 20179 years trading
- Registered office
- Wellington House 273-275 High Street, London Colney, St Albans, Hertfordshire, AL2 1HA
- Nature of business
- Construction of other civil engineering projects n.e.c.
Eastham Hydro Limited is a 9-year-old private limited company registered in St Albans, company number 11006221, one of 11 civil engineering contractors in St Albans. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
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 £30 (-0.1%) on the year before, to -£32K.
- Net assets rose in 0 of 6 year-on-year comparisons on record.
- Current assets of £5,898 against £327K owed within a year: 0.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£32K | £1,704 | £5,898 | £327K | 0 |
| 31 Dec 2023 | -£32K | £1,894 | £728 | £322K | 0 |
| 31 Dec 2022 | -£32K | £1,894 | £728 | £322K | 0 |
| 31 Dec 2021 | -£32K | £1,894 | £5,728 | £327K | 0 |
| 31 Dec 2020 | -£5,246 | £794 | £799 | £55K | 0 |
| 31 Dec 2019 | -£895 | £837 | £11K | £61K | 0 |
| 31 Dec 2018 | £100 | £100 |
Where Eastham Hydro Limited is registered
The registered office is in St Albans (AL2), in the St Albans local authority area, East of England. Show AL2 1HA on a map.
Other trade companies in AL2
- Keris Ventures Limited LimitedFinishing trades
- Kelly Brickwork LimitedBuilders
- Aurora Electrical LtdElectricians
- Pillars Motors LimitedMotor traders
- Pride & Joy LtdFinishing trades
- Rowantree Developments Group LimitedProperty developers
- Herts Groundworks and Civils LtdGroundworks and demolition
- Meristem Developments LtdProperty developers
Shared registered office
41 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 Eastham Hydro 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11006221
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 October 2017 (9 years ago)
- Registered office
- Wellington House 273-275 High Street, London Colney, St Albans, Hertfordshire, AL2 1HA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 9 October 2025
- Previous names
- H2O Power (Blue) Ltd (until 26 Mar 2021)
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 St Albans
Other active civil engineering contractors registered in St Albans.
- Ecoms Utilities Ltd2021
- Elan Hydro Ltd2016
- Halsey (Builders) Limited1963
- Mersey Hydro Ltd2017
- Renfin Hydro 2 Ltd2017
- Afon Cree Hydro Ltd2016
- Anders1980 Ltd2008
- Ayad Services Limited2018
All civil engineering contractors in St Albans · All trades in St Albans · Civil engineering across the UK
Frequently asked questions
When are Eastham Hydro Limited's accounts due?
Eastham Hydro Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Eastham Hydro Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Eastham Hydro Limited still trading?
Eastham Hydro 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 Eastham Hydro Limited do?
Eastham Hydro Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Eastham Hydro Limited?
Eastham Hydro Limited was incorporated on 10 October 2017, 9 years ago.
What is the penalty if Eastham Hydro 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 Eastham Hydro 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.