- Companies
- Specialist contractors
- North Harrow
- Klarwasser Marin Technik Limited
Klarwasser Marin Technik Limited
- Company number
- 08176108
- Incorporated
- 10 Aug 201214 years trading
- Registered office
- Unit 9 Churchill Court, 58 Station Road, North Harrow, HA2 7SA
- Nature of business
- Other specialised construction activities n.e.c.
Klarwasser Marin Technik Limited is a 14-year-old private limited company registered in North Harrow, company number 08176108, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £4,699 (+875%) on the year before, to £5,236.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £120K against £114K owed within a year: 1.0 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £5,236 | £246 | £120K | £114K | 1 |
| 31 Dec 2024 | £537 | £5,771 | £396K | 1 | |
| 31 Dec 2023 | £25K | £219K | £277K | £251K | 1 |
| 31 Dec 2022 | -£18K | £329K | £829K | £847K | 1 |
| 31 Dec 2021 | -£6,186 | £927 | £66K | £72K | 1 |
| 31 Aug 2020 | -£3,093 | £782 | £12K | £15K | 1 |
| 31 Aug 2019 | -£2,222 | £860 | £12K | £14K | |
| 31 Aug 2018 | -£1,050 | £731 | £11K | £13K | |
| 31 Aug 2017 | -£505 | £15K | £15K | ||
| 31 Aug 2016 | -£505 | £15K | £15K | £15K |
Where Klarwasser Marin Technik Limited is registered
The registered office is in North Harrow (HA2), in the Harrow local authority area, London. Show HA2 7SA on a map.
Other trade companies in HA2
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- JNJ Engineering LimitedCivil engineering
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- Grandwellautos LtdMotor traders
- Multisteel Powdercoating LtdPainters and decorators
- Neon Systems LtdElectricians
- Firstclass Facilities LtdCleaning companies
- PMD Construct LtdBuilders
Also registered at this address
17 other companies use the same registered office as Klarwasser Marin Technik Limited.
- 2MB LtdBuilders
- Ab Plumbing & Heating Specialist LtdPlumbers and heating engineers
- Clearwater Marine Technology LimitedSpecialist contractors
- Copperdell Consultants LtdProperty developers
- Cre8 Developments LtdBuilders
- Crystal Const Services LimitedPainters and decorators
- Finsol Properties LtdProperty developers
- Kell Building Contractors LimitedBuilders
- M.P. Property Lettings & Sales LtdSpecialist contractors
- Mak Gas LtdPlumbers and heating engineers
- PCD Services London LimitedFinishing trades
- Phoenix Group (London) LimitedPlasterers
- Rad Construction Management LtdBuilders
- Rasila LtdCivil engineering
- SKV Renewables LtdElectricians
- Superb Const LtdProperty developers
- Vsquared Consultancy LimitedElectricians
What happens if Klarwasser Marin Technik 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 08176108
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 August 2012 (14 years ago)
- Registered office
- Unit 9 Churchill Court, 58 Station Road, North Harrow, HA2 7SA
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 10 August 2026
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 North Harrow
Other active specialist construction companies registered in North Harrow.
All specialist construction companies in North Harrow · All trades in North Harrow · Specialist contractors across the UK
Frequently asked questions
When are Klarwasser Marin Technik Limited's accounts due?
Klarwasser Marin Technik Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Klarwasser Marin Technik Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Klarwasser Marin Technik Limited still trading?
Klarwasser Marin Technik 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 Klarwasser Marin Technik Limited do?
Klarwasser Marin Technik Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Klarwasser Marin Technik Limited?
Klarwasser Marin Technik Limited was incorporated on 10 August 2012, 14 years ago.
What is the penalty if Klarwasser Marin Technik 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 Klarwasser Marin Technik 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.