- Companies
- Plumbers and heating engineers
- Swansea
- Specialist Sprinkler and Plumbing Services Limited
Specialist Sprinkler and Plumbing Services Limited
- Company number
- 12109430
- Incorporated
- 17 Jul 20197 years trading
- Registered office
- Avc House, 21 Northampton Lane, Swansea, SA1 4EH
- Nature of business
- Plumbing, heat and air-conditioning installation
Specialist Sprinkler and Plumbing Services Limited is a 7-year-old private limited company registered in Swansea, company number 12109430, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £287 (+610.6%) on the year before, to £334.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £38K against £39K owed within a year: 1.0 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £334 | £38K | £39K | 3 | |
| 31 Jul 2024 | £47 | £42K | £39K | 4 | |
| 31 Jul 2023 | £20K | £71K | 3 | ||
| 31 Jul 2022 | £9,592 | £51K | £28K | 3 | |
| 31 Jul 2021 | £43K | £94K | £32K | 3 | |
| 31 Jul 2020 | £36K | £57K | £9,878 | 4 |
Where Specialist Sprinkler and Plumbing Services Limited is registered
The registered office is in Swansea (SA1), in the Swansea local authority area, Wales. Show SA1 4EH on a map.
Other trade companies in SA1
- JDS Ringside Customs LtdRepair services
- D & M Carpentry and Construction LimitedCivil engineering
- Westway Window Systems LimitedJoiners and carpenters
- International Classic Car Sales LtdMotor traders
- Edefec LtdBuilders
- Swansea Scaffolding Services LtdScaffolders
- Lou's Paint and Finish LimitedPainters and decorators
- Mesa Property Development LtdProperty developers
Shared registered office
38 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Specialist Sprinkler and Plumbing 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12109430
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 July 2019 (7 years ago)
- Registered office
- Avc House, 21 Northampton Lane, Swansea, SA1 4EH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 16 July 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 Swansea
Other active plumbing and heating companies registered in Swansea.
- SR Williams Plumbing and Heating Ltd2025
- Star Gas Services Wales Limited2023
- Stewart Thomas Plumbing & Heating Ltd2022
- Swansbay Ltd2022
- Swansea Gas and Oil Limited2025
- Swansea Gas Services Ltd2023
- Swansea Plumbers & Boilers Ltd2025
- T & G Gas Services Ltd2022
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Specialist Sprinkler and Plumbing Services Limited's accounts due?
Specialist Sprinkler and Plumbing Services Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Specialist Sprinkler and Plumbing Services Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Specialist Sprinkler and Plumbing Services Limited still trading?
Specialist Sprinkler and Plumbing 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 Specialist Sprinkler and Plumbing Services Limited do?
Specialist Sprinkler and Plumbing Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Specialist Sprinkler and Plumbing Services Limited?
Specialist Sprinkler and Plumbing Services Limited was incorporated on 17 July 2019, 7 years ago.
What is the penalty if Specialist Sprinkler and Plumbing 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 Specialist Sprinkler and Plumbing 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.