- Companies
- Plumbers and heating engineers
- Harrow
- Coterm Limited
Coterm Limited
- Company number
- 14665604
- Incorporated
- 15 Feb 20233 years trading
- Registered office
- 105 Locket Road, Harrow, HA3 7NY
- Nature of business
- Plumbing, heat and air-conditioning installation; Other retail sale in non-specialised stores
Coterm Limited is a 3-year-old private limited company registered in Harrow, company number 14665604, one of 154 plumbing and heating companies in Harrow. 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 £7,967 (-100%) on the year before, to £1.
- Current assets of £7,656 against £7,655 owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £1 | £7,656 | £7,655 | 1 | |
| 28 Feb 2024 | £7,968 | £32K | 1 |
Where Coterm Limited is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 7NY on a map.
Other trade companies in HA3
- M&M Team Solutions LimitedCleaning companies
- Asr234 LimitedCivil engineering
- Shine Bright With NV LtdMechanics and garages
- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
- Add22 LtdCivil engineering
- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
Also registered at this address
2 other companies use the same registered office as Coterm Limited.
- Innovative-Heating Projects LtdPlumbers and heating engineers
- Mitrut LtdFinishing trades
What happens if Coterm Limited 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
- 14665604
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 February 2023 (3 years ago)
- Registered office
- 105 Locket Road, Harrow, HA3 7NY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other retail sale in non-specialised stores (SIC 47190) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 14 February 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 Harrow
Other active plumbing and heating companies registered in Harrow.
- Crafters Global Ltd2022
- Deans Plumbing and Heating Limited2018
- Delta Gas Ltd2014
- Devonald Plumbing Limited2026
- DM Plumbing and Heating Site Services Ltd2026
- DNL Welding Services Limited2015
- Donnington Investments Ltd2012
- DS Kelly Services Limited2016
All plumbing and heating companies in Harrow · All trades in Harrow · Plumbers and heating engineers across the UK
Frequently asked questions
When are Coterm Limited's accounts due?
Coterm Limited's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Coterm Limited'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 Coterm Limited still trading?
Coterm Limited 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 Coterm Limited do?
Coterm Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other retail sale in non-specialised stores (SIC 47190).
How old is Coterm Limited?
Coterm Limited was incorporated on 15 February 2023, 3 years ago.
What is the penalty if Coterm Limited 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 Coterm Limited 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.