- Companies
- Plumbers and heating engineers
- London
- Unitek Plumbing and Heating Ltd
Unitek Plumbing and Heating Ltd
- Company number
- 11545765
- Incorporated
- 31 Aug 20188 years trading
- Registered office
- 35A 35A Lowther Hill, London, SE23 1PZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Unitek Plumbing and Heating Ltd is a 8-year-old private limited company registered in London, company number 11545765, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £34K (-34.1%) on the year before, to £65K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £71K against £5,776 owed within a year: more than 10 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £65K | £71K | £71K | £5,776 | 1 |
| 29 Feb 2024 | £99K | £97K | £98K | £1,573 | 1 |
| 28 Feb 2023 | £127K | £110K | £127K | £647 | 0 |
| 28 Feb 2022 | £41K | £31K | £41K | £0 | 0 |
| 28 Feb 2021 | £34K | £52K | £19K | 1 | |
| 29 Feb 2020 | £56K | £81K | £25K | 1 |
Where Unitek Plumbing and Heating Ltd is registered
The registered office is in London (SE23), in the Lewisham local authority area, London. Show SE23 1PZ on a map.
Other trade companies in SE23
- JBM Roofing LimitedRoofers
- Momkin LtdPlumbers and heating engineers
- Finches Properties LimitedProperty developers
- Bovar Solar LtdElectricians
- Niccarpenter LtdPlasterers
- Drive UK 26 LtdBuilders
- Home Comfort Ac LtdPlumbers and heating engineers
- R&R Building and Maintenance LtdBuilders
What happens if Unitek Plumbing and Heating 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 11545765
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 August 2018 (8 years ago)
- Registered office
- 35A 35A Lowther Hill, London, SE23 1PZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 28 August 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 London
Other active plumbing and heating companies registered in London.
- Universal Airflow Ltd2025
- Universal Plumbing and Heating Engineers Limited2021
- Universal Plumbing and Heating Ltd2026
- Unlimited Repairs Limited2013
- Upgrowth Ltd2019
- Upperplumbers Ltd2014
- Ur Boiler Mate Ltd2024
- Ur Builders Limited2014
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Unitek Plumbing and Heating Ltd's accounts due?
Unitek Plumbing and Heating Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Unitek Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Unitek Plumbing and Heating Ltd still trading?
Unitek Plumbing and Heating 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 Unitek Plumbing and Heating Ltd do?
Unitek Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Unitek Plumbing and Heating Ltd?
Unitek Plumbing and Heating Ltd was incorporated on 31 August 2018, 8 years ago.
What is the penalty if Unitek Plumbing and Heating 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 Unitek Plumbing and Heating 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.