- Companies
- Plumbers and heating engineers
- Derby
- Ser Plumbing Limited
Ser Plumbing Limited
- Company number
- 04510448
- Incorporated
- 14 Aug 200224 years trading
- Registered office
- 27 Abbot Close, Oakwood, Derby, Derbyshire, DE21 2BQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Ser Plumbing Limited is a 24-year-old private limited company registered in Derby, company number 04510448, one of 176 plumbing and heating companies in Derby. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 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 up £1,423 (+5.4%) on the year before, to -£25K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £1,470 against £28K owed within a year: 0.1 times cover.
- 2 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 Aug 2025 | -£25K | £1,470 | £28K | 2 | |
| 31 Aug 2024 | -£26K | £27K | 2 | ||
| 31 Aug 2023 | -£34K | £460 | £33K | 2 | |
| 31 Aug 2022 | -£29K | £10K | £37K | 2 | |
| 31 Aug 2021 | -£23K | £13K | £34K | 2 | |
| 31 Aug 2020 | -£17K | £14K | £28K | 2 | |
| 31 Aug 2019 | -£5,595 | £18K | £31K | 2 | |
| 31 Aug 2018 | -£9,558 | £15K | £31K | 2 | |
| 31 Aug 2017 | -£9,919 | £9,894 | £28K | 2 | |
| 31 Aug 2016 | -£10K | £5,908 | £26K |
Where Ser Plumbing Limited is registered
The registered office is in Derby (DE21), in the Derby local authority area, East Midlands. Show DE21 2BQ on a map.
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- FFR Construction LtdCivil engineering
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What happens if Ser Plumbing 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 04510448
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 August 2002 (24 years ago)
- Registered office
- 27 Abbot Close, Oakwood, Derby, Derbyshire, DE21 2BQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (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 Derby
Other active plumbing and heating companies registered in Derby.
- Serenity Bathrooms (Derby) Limited2017
- Smart Heat Systems Ltd2026
- Smiths International Plumbing & Heating Ltd.1995
- Speedy Heat (Midlands) Ltd2025
- Speedy Underfloor Heating Ltd2026
- Standard Plumbing Heating Solutions Ltd2024
- Steve Trower Plumbing & Heating Limited2003
- STH Mechanical Ltd2019
All plumbing and heating companies in Derby · All trades in Derby · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ser Plumbing Limited's accounts due?
Ser Plumbing Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Ser Plumbing Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Ser Plumbing Limited still trading?
Ser Plumbing 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 Ser Plumbing Limited do?
Ser Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ser Plumbing Limited?
Ser Plumbing Limited was incorporated on 14 August 2002, 24 years ago.
What is the penalty if Ser Plumbing 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 Ser Plumbing 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.