- Companies
- Plumbers and heating engineers
- Sidcup
- McCarthy's Plumbing Solutions Ltd
McCarthy's Plumbing Solutions Ltd
- Company number
- 16379775
- Incorporated
- 10 Apr 20251 year trading
- Registered office
- 133 Station Road, Sidcup, DA15 7AA
- Nature of business
- Plumbing, heat and air-conditioning installation
McCarthy's Plumbing Solutions Ltd is a 1-year-old private limited company registered in Sidcup, company number 16379775, one of 101 plumbing and heating companies in Sidcup. Its next accounts are due at Companies House on 10 January 2027, and its first CT600 is due at HMRC on 9 April 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Financial snapshot, 2026
From the balance sheet at 30 April 2026, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where McCarthy's Plumbing Solutions Ltd is registered
The registered office is in Sidcup (DA15), in the Bexley local authority area, London. Show DA15 7AA on a map.
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- Buckson Property Maintenance LtdElectricians
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- Husband at Home LtdInstallers
- First Choice Cars LDN LtdMotor traders
- TSLM Electrical Contractors LtdElectricians
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Also registered at this address
15 other companies use the same registered office as McCarthy's Plumbing Solutions Ltd.
- Ab Brickwork and Building Services LimitedSpecialist contractors
- Always Together Property Services LimitedCleaning companies
- Amf Construction LimitedBuilders
- Bolt Building and Construction LtdBuilders
- CCR Plumbing and Heating LtdPlumbers and heating engineers
- Elliot Doherty LimitedPlumbers and heating engineers
- First Environmental LtdGroundworks and demolition
- Floor Gallery LimitedFloor and wall tilers
- J Kennor Plumbing LimitedPlumbers and heating engineers
- M C Technicians LtdBuilders
- Marquis Fire and Security Services LimitedSpecialist contractors
- Mburton Electrical Services LimitedElectricians
- Parlour Maids LimitedCleaning companies
- RN Roofing LimitedRoofers
- Roller Garage Solutions LtdInstallers
What happens if McCarthy's Plumbing Solutions 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 10 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Jan 2027 to 10 Feb 2027 | £150 |
| 1 to 3 months late | 11 Feb 2027 to 10 Apr 2027 | £375 |
| 3 to 6 months late | 11 Apr 2027 to 10 Jul 2027 | £750 |
| More than 6 months late | From 11 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16379775
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 April 2025 (1 year ago)
- Registered office
- 133 Station Road, Sidcup, DA15 7AA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 9 April 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 Sidcup
Other active plumbing and heating companies registered in Sidcup.
- Modgas Ltd2018
- Morfleet Construction/Heating Ltd2025
- My Home PS Ltd2024
- Odh Climate & Maintenance Limited2025
- P O'Callaghan Services Limited1998
- Perfect Glow Services Limited2018
- Peter Ely Plumbing and Heating Limited2014
- Pinnacle Heating Solutions Ltd2006
All plumbing and heating companies in Sidcup · All trades in Sidcup · Plumbers and heating engineers across the UK
Frequently asked questions
When are McCarthy's Plumbing Solutions Ltd's accounts due?
McCarthy's Plumbing Solutions Ltd's next accounts are due at Companies House by 10 January 2027 (in 89 days), covering the period to 30 April 2026.
When is McCarthy's Plumbing Solutions Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 9 April 2026, due by 9 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is McCarthy's Plumbing Solutions Ltd still trading?
McCarthy's Plumbing Solutions 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 McCarthy's Plumbing Solutions Ltd do?
McCarthy's Plumbing Solutions Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is McCarthy's Plumbing Solutions Ltd?
McCarthy's Plumbing Solutions Ltd was incorporated on 10 April 2025, 1 year ago.
What is the penalty if McCarthy's Plumbing Solutions 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 McCarthy's Plumbing Solutions 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.