- Companies
- Plumbers and heating engineers
- Borehamwood
- Blue Water Systems Limited
Blue Water Systems Limited
- Company number
- 08179757
- Incorporated
- 14 Aug 201214 years trading
- Registered office
- Hubspace, Devonshire House C/O Shenkers, Manor Way, Borehamwood, Hertfordshire, WD6 1QQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Blue Water Systems Limited is a 14-year-old private limited company registered in Borehamwood, company number 08179757, one of 33 plumbing and heating companies in Borehamwood. Its next accounts are due at Companies House on 4 June 2027, and its first CT600 is due at HMRC on 31 August 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 £340 (-66.5%) on the year before, to £171.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £59K against £52K owed within a year: 1.1 times cover.
- 2 employees on average, down from 3 the year before.
- 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 Aug 2025 | £171 | £2,292 | £59K | £52K | 2 |
| 31 Aug 2024 | £511 | £885 | £38K | £22K | 3 |
| 31 Aug 2023 | £1,541 | £1,873 | £49K | £29K | 3 |
| 31 Aug 2022 | -£16K | £7,101 | £42K | £36K | 3 |
| 31 Aug 2021 | £172 | £5,367 | £61K | £40K | 3 |
| 31 Aug 2020 | £171 | £24K | £59K | £69K | 3 |
| 31 Aug 2019 | £938 | £2,349 | £39K | £39K | 3 |
| 31 Aug 2018 | £13K | £2,307 | £63K | £50K | 3 |
| 31 Aug 2017 | £2,575 | £802 | £32K | £29K | |
| 31 Aug 2016 | £2,682 | £87 | £26K | £23K |
Where Blue Water Systems Limited is registered
The registered office is in Borehamwood (WD6), in the Hertsmere local authority area, East of England. Show WD6 1QQ on a map.
Other trade companies in WD6
- Blackstone Builders LtdBuilders
- Clements Hall (Contracts) LtdFloor and wall tilers
- P & P Roofing & Guttering LimitedProperty developers
- Stern Landscaping LtdLandscapers and gardeners
- Complete Paint & Decor LtdPainters and decorators
- 1ST Response Plumbing and Heating LimitedPlumbers and heating engineers
- Ideal Casa Construction LtdInstallers
- Gallop Construction LimitedBuilders
Also registered at this address
2 other companies use the same registered office as Blue Water Systems Limited.
- A-Z Diesel Injection Services LtdMechanics and garages
- Phoenix Lift Trucks LimitedMachinery repair and installation
What happens if Blue Water Systems 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 4 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Jun 2027 to 4 Jul 2027 | £150 |
| 1 to 3 months late | 5 Jul 2027 to 4 Sep 2027 | £375 |
| 3 to 6 months late | 5 Sep 2027 to 4 Dec 2027 | £750 |
| More than 6 months late | From 5 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 5 Sep 2027 | £200 |
| 3 months late | 4 Dec 2027 | another £200 |
| 6 months late | 4 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 4 Sep 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
- 08179757
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 August 2012 (14 years ago)
- Registered office
- Hubspace, Devonshire House C/O Shenkers, Manor Way, Borehamwood, Hertfordshire, WD6 1QQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 4 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 14 August 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Borehamwood
Other active plumbing and heating companies registered in Borehamwood.
- Cool Gas Air Conditioning Ltd2019
- Cool Sky Air Conditioning Ltd2023
- D P Plumbing & Gas Ltd2023
- Danflo Ltd2022
- Everest Air Conditioning Services Ltd2024
- FPF Utilities Limited2012
- Fru Plumbing & Heating Limited2023
- G & S Heating Engineering Limited2014
All plumbing and heating companies in Borehamwood · All trades in Borehamwood · Plumbers and heating engineers across the UK
Frequently asked questions
When are Blue Water Systems Limited's accounts due?
Blue Water Systems Limited's next accounts are due at Companies House by 4 June 2027 (in 234 days), covering the period to 4 September 2026.
When is Blue Water Systems 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 August 2026, due by 31 August 2027, and one for the period to 4 September 2026, due by 4 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Blue Water Systems Limited still trading?
Blue Water Systems 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 Blue Water Systems Limited do?
Blue Water Systems Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Blue Water Systems Limited?
Blue Water Systems Limited was incorporated on 14 August 2012, 14 years ago.
What is the penalty if Blue Water Systems 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 Blue Water Systems 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.