- Companies
- Plumbers and heating engineers
- Bushey
- Diddy Boilers Ltd
Diddy Boilers Ltd
- Company number
- 13961351
- Incorporated
- 7 Mar 20224 years trading
- Registered office
- 22 Fidler Place, Bushey, WD23 4UF
- Nature of business
- Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.; Other retail sale in non-specialised stores; Other service activities n.e.c.
Diddy Boilers Ltd is a 4-year-old private limited company registered in Bushey, company number 13961351, one of 18 plumbing and heating companies in Bushey. 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 down £289 (-99.7%) on the year before, to £1.
- Current assets of £1 against £1 owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1 | £1 | £1 | 1 | |
| 31 Mar 2024 | £290 | 1 | |||
| 31 Mar 2023 | £292 | £4,960 | £4,892 | 0 |
Where Diddy Boilers Ltd is registered
The registered office is in Bushey (WD23), in the Hertsmere local authority area, East of England. Show WD23 4UF on a map.
Other trade companies in WD23
- Build X Projects LtdProperty developers
- Zenith Construction Solutions LimitedSpecialist contractors
- Topographical Consulting LtdSpecialist contractors
- Coast County Cleaners LtdCleaning companies
- Herts Boiler Group LtdPlumbers and heating engineers
- Sky View Properties 1 LtdProperty developers
- Tree Specialist LimitedLandscapers and gardeners
- JT Sroka LtdBuilders
What happens if Diddy Boilers 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 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
- 13961351
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 March 2022 (4 years ago)
- Registered office
- 22 Fidler Place, Bushey, WD23 4UF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999)
Other retail sale in non-specialised stores (SIC 47190)
Other service activities n.e.c. (SIC 96090) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 2 November 2025
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 Bushey
Other active plumbing and heating companies registered in Bushey.
- DLC Heating Ltd2021
- Gas Rated Solutions Ltd2016
- H Q Plumbing Ltd2018
- Happy Heat Limited2021
- Herts Boiler Group Ltd2026
- Hevac Services Ltd2026
- Just Works Limited2010
- MRC Heating and Plumbing Limited2014
All plumbing and heating companies in Bushey · All trades in Bushey · Plumbers and heating engineers across the UK
Frequently asked questions
When are Diddy Boilers Ltd's accounts due?
Diddy Boilers Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Diddy Boilers Ltd'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 Diddy Boilers Ltd still trading?
Diddy Boilers 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 Diddy Boilers Ltd do?
Diddy Boilers Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999); Other retail sale in non-specialised stores (SIC 47190); Other service activities n.e.c. (SIC 96090).
How old is Diddy Boilers Ltd?
Diddy Boilers Ltd was incorporated on 7 March 2022, 4 years ago.
What is the penalty if Diddy Boilers 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 Diddy Boilers 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.