- Companies
- Plumbers and heating engineers
- Rotherham
- Adelphi Mechanical Ltd
Adelphi Mechanical Ltd
- Company number
- 15704692
- Incorporated
- 7 May 20242 years trading
- Registered office
- 18A Rother Court, Mangham Road, Rotherham, S62 6DR
- Nature of business
- Plumbing, heat and air-conditioning installation
Adelphi Mechanical Ltd is a 2-year-old private limited company registered in Rotherham, company number 15704692, one of 158 plumbing and heating companies in Rotherham. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Who runs and owns Adelphi Mechanical Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| R*** B*** | Director | May 2024 |
| R*** B*** | Secretary | May 2024 |
People with significant control (2)
Where Adelphi Mechanical Ltd is registered
The registered office is in Rotherham (S62), in the Rotherham local authority area, Yorkshire and The Humber. Show S62 6DR on a map.
Other trade companies in S62
- KWB Joinery Services LtdJoiners and carpenters
- Elite Property Prep LtdCleaning companies
- A&R Property Services LtdProperty developers
- Hamco Construction LtdBuilders
- L Carroll Roofing LimitedRoofers
- Rovrum Plastering LtdPlasterers
- D Downs Interiors LtdSpecialist contractors
- MLH Power System LtdMachinery repair and installation
Shared registered office
34 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 Adelphi Mechanical 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 30 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 15704692
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 May 2024 (2 years ago)
- Registered office
- 18A Rother Court, Mangham Road, Rotherham, S62 6DR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 6 May 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 Rotherham
Other active plumbing and heating companies registered in Rotherham.
- Adr Heating Solutions Ltd2012
- Adrian Evans Limited2006
- Aepex Air-Con Limited2026
- Ah P&H Ltd2026
- Airmaster (Heating & Ventilation) Limited1998
- All Aspects Joinery and Heating Ltd2023
- Allgas 1 Limited2010
- Apm Services (Sy) Ltd2022
All plumbing and heating companies in Rotherham · All trades in Rotherham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Adelphi Mechanical Ltd's accounts due?
Adelphi Mechanical Ltd's next accounts are due at Companies House by 30 November 2027 (in 414 days), covering the period to 28 February 2027.
When is Adelphi Mechanical Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Adelphi Mechanical Ltd still trading?
Adelphi Mechanical 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 Adelphi Mechanical Ltd do?
Adelphi Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Adelphi Mechanical Ltd?
Adelphi Mechanical Ltd was incorporated on 7 May 2024, 2 years ago.
Who runs Adelphi Mechanical Ltd?
Adelphi Mechanical Ltd has 1 active director, the longest-serving appointed in May 2024. Their names and service addresses are on the Companies House register.
Who owns Adelphi Mechanical Ltd?
2 people or companies have significant control of Adelphi Mechanical Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Adelphi Mechanical 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 Adelphi Mechanical 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.