- Companies
- Plumbers and heating engineers
- Exeter
- Carshalton Boiler Services Limited
Carshalton Boiler Services Limited
- Company number
- 02503232
- Incorporated
- 17 May 199036 years trading
- Registered office
- C/O Bishop Fleming Brook House Manor Drive, Clyst ST. Mary, Exeter, EX5 1GD
- Nature of business
- Plumbing, heat and air-conditioning installation
Carshalton Boiler Services Limited is a 36-year-old private limited company registered in Exeter, company number 02503232, one of 98 plumbing and heating companies in Exeter. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 30 September 2026.
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 £678K (-72.6%) on the year before, to £256K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £523K against £275K owed within a year: 1.9 times cover.
- 12 employees on average during the year.
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2024 | £256K | £313K | £523K | £275K | 12 |
| 30 Sep 2023 | £934K | £482K | £1.3M | £298K | 12 |
| 30 Sep 2022 | £857K | £361K | £1.2M | £269K | 13 |
| 30 Sep 2021 | £760K | £291K | £1.1M | £260K | 14 |
| 30 Sep 2020 | £614K | £217K | £1M | £269K | 17 |
| 30 Sep 2019 | £576K | £18K | £814K | £252K | 20 |
| 30 Sep 2018 | £520K | £85K | £825K | £321K | 21 |
Where Carshalton Boiler Services Limited is registered
The registered office is in Exeter (EX5), in the East Devon local authority area, South West. Show EX5 1GD on a map.
Other trade companies in EX5
- Onyx Business Parks Skypark Offices LtdBuilders
- Southwest Church Works LtdSpecialist contractors
- Exe Electrical LtdElectricians
- Westcott Property Group LtdProperty developers
- Maintainright LtdElectricians
- D.R Groundworks and Landscaping LtdSpecialist contractors
- Ad Car Services LimitedMotor traders
- Springfield Terrain LimitedMachinery repair and installation
Also registered at this address
6 other companies use the same registered office as Carshalton Boiler Services Limited.
- Banstead Boilers Ltd.Plumbers and heating engineers
- Capital & Centric (Resurrection) LimitedProperty developers
- J.N. Building LimitedProperty developers
- Makinson Homes LimitedProperty developers
- Maladee Property LimitedProperty developers
- Prime Structures LimitedBuilders
What happens if Carshalton Boiler 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
- 02503232
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 1990 (36 years ago)
- Registered office
- C/O Bishop Fleming Brook House Manor Drive, Clyst ST. Mary, Exeter, EX5 1GD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 4 May 2026
- Charges (mortgages)
- 0 outstanding of 9 registered
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 Exeter
Other active plumbing and heating companies registered in Exeter.
- CB Heating and Hot Water Services Ltd2020
- CGH Plumbing and Heating Limited2023
- Chalmers and Sons Ltd2023
- Chilli Heating Ltd2016
- CJG Plumbing Services Ltd2025
- CK1 Stop (Exeter) Ltd2023
- CMH Plumbing and Heating Ltd2023
- Coombe Plumbing and Heating Limited2017
All plumbing and heating companies in Exeter · All trades in Exeter · Plumbers and heating engineers across the UK
Frequently asked questions
When are Carshalton Boiler Services Limited's accounts due?
Carshalton Boiler 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 Carshalton Boiler Services 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 30 September 2025, due by 30 September 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Carshalton Boiler Services Limited still trading?
Carshalton Boiler 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 Carshalton Boiler Services Limited do?
Carshalton Boiler Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Carshalton Boiler Services Limited?
Carshalton Boiler Services Limited was incorporated on 17 May 1990, 36 years ago.
What is the penalty if Carshalton Boiler 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 Carshalton Boiler 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.