- Companies
- Plumbers and heating engineers
- Southampton
- Complete Solutions CS UK Ltd
Complete Solutions CS UK Ltd
- Company number
- 10792265
- Incorporated
- 26 May 20179 years trading
- Registered office
- Building 2 Unit O, Vero Storage 61 Brook Lane, Warsash, Southampton, Hampshire, SO31 9FF
- Nature of business
- Plumbing, heat and air-conditioning installation
Complete Solutions CS UK Ltd is a 9-year-old private limited company registered in Southampton, company number 10792265, one of 246 plumbing and heating companies in Southampton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £57K (+41.3%) on the year before, to £194K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £651K against £483K owed within a year: 1.3 times cover.
- 18 employees on average, up from 3 the year before.
- Balance sheets on record for 9 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £194K | £233K | £651K | £483K | 18 |
| 31 May 2024 | £137K | £257K | £446K | £308K | 3 |
| 31 May 2023 | £78K | £128K | £342K | £249K | 3 |
| 31 May 2022 | £72K | £277K | £249K | 5 | |
| 31 May 2021 | £35K | £186K | £181K | 4 | |
| 31 May 2020 | £17K | £82K | £94K | 5 | |
| 30 May 2020 | £17K | £82K | £94K | 5 | |
| 31 May 2019 | £56K | £107K | £81K | ||
| 31 May 2018 | £49K | £65K | £36K |
Where Complete Solutions CS UK Ltd is registered
The registered office is in Southampton (SO31), in the Fareham local authority area, South East. Show SO31 9FF on a map.
Other trade companies in SO31
- MNC Cleaning LtdCleaning companies
- Mars Eng. LtdMachinery repair and installation
- Amc Plumbing and Heating LtdPlumbers and heating engineers
- Pride & Bloom LtdLandscapers and gardeners
- Hampshire Heating and Cooling LtdPlumbers and heating engineers
- Kelpie Landscape & Build LtdFinishing trades
- FSC Facilities Services LtdInstallers
- Fitton & Redding Services LimitedMechanics and garages
What happens if Complete Solutions CS UK 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10792265
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 May 2017 (9 years ago)
- Registered office
- Building 2 Unit O, Vero Storage 61 Brook Lane, Warsash, Southampton, Hampshire, SO31 9FF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 20 November 2025
- Previous names
- C.S. Plumbing and Heating Services Ltd (until 5 Jun 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 Southampton
Other active plumbing and heating companies registered in Southampton.
- Cool Enterprises Ltd2026
- Cool4Heat Solutions Ltd2024
- Cosy Glow Heating Limited2016
- Crown Heating & Plumbing Limited2016
- Cutler Home Solutions Ltd2017
- D Jones Plumbing and Heating Limited2014
- David Ebbs Plumbing and Heating Ltd2025
- Diz Gas Ltd2011
All plumbing and heating companies in Southampton · All trades in Southampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Complete Solutions CS UK Ltd's accounts due?
Complete Solutions CS UK Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Complete Solutions CS UK Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Complete Solutions CS UK Ltd still trading?
Complete Solutions CS UK 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 Complete Solutions CS UK Ltd do?
Complete Solutions CS UK Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Complete Solutions CS UK Ltd?
Complete Solutions CS UK Ltd was incorporated on 26 May 2017, 9 years ago.
What is the penalty if Complete Solutions CS UK 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 Complete Solutions CS UK 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.