- Companies
- Plumbers and heating engineers
- London
- CT 11356910 Ltd
CT 11356910 Ltd
- Company number
- 11356910
- Incorporated
- 11 May 20188 years trading
- Registered office
- Crown House, 27 Old Gloucester Street, London, WC1N 3AX
- Nature of business
- Plumbing, heat and air-conditioning installation
CT 11356910 Ltd is a 8-year-old private limited company registered in London, company number 11356910, one of 2,972 plumbing and heating companies in London. Companies House shows its accounts as overdue: they were due on 28 February 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 £3,363 (-19.2%) on the year before, to -£21K.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- Current assets of £35K against £6,610 owed within a year: 5.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2019 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2024 | -£21K | £0 | £35K | £6,610 | 1 |
| 31 May 2023 | -£17K | £36K | £55K | 1 | |
| 31 May 2022 | -£17K | £33K | £50K | 1 | |
| 31 May 2021 | -£10K | £40K | £50K | 1 | |
| 31 May 2020 | £1 | £1 | £0 | 0 | |
| 31 May 2019 | £1 | £1 |
Where CT 11356910 Ltd is registered
The registered office is in London (WC1N), in the Camden local authority area, London. Show WC1N 3AX on a map.
Other trade companies in WC1N
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- Pixie Marine LimitedMachinery repair and installation
- Old Man Edition LtdFloor and wall tilers
- Wise Choice Security LimitedMechanics and garages
- Prime Coating Services LtdMotor traders
- Strive Lands LtdProperty developers
- Statom LimitedBuilders
- Jose Galvez LtdRepair services
Shared registered office
35 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 CT 11356910 Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2026 to 31 Mar 2026 | £150 |
| 1 to 3 months late | 1 Apr 2026 to 31 May 2026 | £375 |
| 3 to 6 months late | 1 Jun 2026 to 31 Aug 2026 | £750 |
| More than 6 months late | From 1 Sep 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2026 | £200 |
| 3 months late | 31 Aug 2026 | another £200 |
| 6 months late | 30 Nov 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2027 | 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
- 11356910
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 May 2018 (8 years ago)
- Registered office
- Crown House, 27 Old Gloucester Street, London, WC1N 3AX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2024
- Last confirmation statement
- 31 May 2025
- Previous names
- My Gas Limited (until 17 Oct 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 London
Other active plumbing and heating companies registered in London.
- CT Trade Solutions Ltd2025
- Cul Services Ltd2021
- Culkin Plumbing and Heating Ltd2012
- Cumbria Wood Burning Stoves Ltd2026
- Curtises Ltd2015
- CVP Repairs Limited2019
- CW Heat Services Ltd2017
- D & D Heating Limited2015
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are CT 11356910 Ltd's accounts due?
CT 11356910 Ltd's accounts were due at Companies House on 28 February 2026 and the register shows them as overdue.
When is CT 11356910 Ltd's CT600 due?
The CT600 for the period to 31 May 2025 is due at HMRC by 31 May 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2026.
Is CT 11356910 Ltd still trading?
CT 11356910 Ltd is listed as active on the Companies House register (checked 13 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 CT 11356910 Ltd do?
CT 11356910 Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CT 11356910 Ltd?
CT 11356910 Ltd was incorporated on 11 May 2018, 8 years ago.
What is the penalty if CT 11356910 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 CT 11356910 Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.