- Companies
- Plumbers and heating engineers
- Southsea
- Craneswater Mechanical Services Limited
Craneswater Mechanical Services Limited
- Company number
- 06505642
- Incorporated
- 15 Feb 200818 years trading
- Registered office
- The Old Treasury, 7 Kings Road, Southsea, Hampshire, PO5 4DJ
- Nature of business
- Plumbing, heat and air-conditioning installation
Craneswater Mechanical Services Limited is a 18-year-old private limited company registered in Southsea, company number 06505642, one of 25 plumbing and heating companies in Southsea. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £75K (+32.9%) on the year before, to £305K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £1.3M against £1M owed within a year: 1.3 times cover.
- 22 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £305K | £269K | £1.3M | £1M | 22 |
| 31 Mar 2024 | £230K | £187K | £953K | £761K | 22 |
| 31 Mar 2023 | £202K | £136K | £1.1M | £924K | 22 |
| 31 Mar 2022 | £226K | £228K | £843K | £701K | 23 |
| 31 Mar 2021 | £333K | £82K | £1.1M | £793K | 23 |
| 31 Mar 2020 | £363K | £133K | £738K | 23 | |
| 31 Mar 2019 | £275K | £87K | £859K | £637K | 26 |
| 31 Mar 2018 | £353K | £90K | £900K | £616K | 29 |
| 31 Mar 2017 | £350K | £132K | £866K | £603K | 21 |
| 31 Mar 2016 | £378K | £141K | £922K | £622K |
Where Craneswater Mechanical Services Limited is registered
The registered office is in Southsea (PO5), in the Portsmouth local authority area, South East. Show PO5 4DJ on a map.
Other trade companies in PO5
- Fixnova LtdRepair services
- Luxury Resin Floors and Media Walls LtdBuilders
- Pretty Unique Cleaning Services LtdCleaning companies
- Bay Bricks LtdProperty developers
- Blydan Holdings LimitedProperty developers
- Inside Out Developments Southampton LtdBuilders
- Hampshire Car Hire LtdMechanics and garages
- Baynes Wipers LtdMachinery repair and installation
What happens if Craneswater Mechanical Services 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
- 06505642
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 February 2008 (18 years ago)
- Registered office
- The Old Treasury, 7 Kings Road, Southsea, Hampshire, PO5 4DJ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 15 February 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 Southsea
Other active plumbing and heating companies registered in Southsea.
- Davies & Davies Plumbing and Heating Ltd2018
- Gasworks Maintenance Ltd2015
- GDM Plumbing & Heating Services Ltd2020
- Glenn Scholes Plumbing & Heating Ltd2025
- GPR Mechanical Solutions Limited2021
- Heat Co Gas Limited2024
- Heat Co Plumbing & Heating Limited2023
- Keeping Mechanical Services Ltd2021
All plumbing and heating companies in Southsea · All trades in Southsea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Craneswater Mechanical Services Limited's accounts due?
Craneswater Mechanical Services 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 Craneswater Mechanical Services Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Craneswater Mechanical Services Limited still trading?
Craneswater Mechanical Services 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 Craneswater Mechanical Services Limited do?
Craneswater Mechanical Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Craneswater Mechanical Services Limited?
Craneswater Mechanical Services Limited was incorporated on 15 February 2008, 18 years ago.
What is the penalty if Craneswater Mechanical Services 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 Craneswater Mechanical Services 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.