- Companies
- Plumbers and heating engineers
- Harrow
- CNL Heating Ltd
CNL Heating Ltd
- Company number
- 14417495
- Incorporated
- 13 Oct 20224 years trading
- Registered office
- 293 Kenton Lane, Harrow, HA3 8RR
- Nature of business
- Plumbing, heat and air-conditioning installation
CNL Heating Ltd is a 4-year-old private limited company registered in Harrow, company number 14417495, one of 154 plumbing and heating companies in Harrow. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £11K (-37.7%) on the year before, to £18K.
- Current assets of £15K against £5,599 owed within a year: 2.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £18K | £15K | £5,599 | 2 | |
| 31 Aug 2024 | £29K | £28K | £11K | 2 | |
| 31 Aug 2023 | £1 |
Where CNL Heating Ltd is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 8RR 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
19 other companies use the same registered office as CNL Heating Ltd.
- Aj Maintenance Services LimitedBuilders
- Av Home Improvement Services LtdSpecialist contractors
- Belmont Service Centre LimitedMechanics and garages
- Building, Engineering & Construction Management LtdProperty developers
- Cement Plus UK LimitedBuilders
- Constructo LtdProperty developers
- Coopers 2 U LimitedFinishing trades
- Delaney Design & Build LimitedBuilders
- Hav Services LtdCivil engineering
- Herts Waste LimitedPlumbers and heating engineers
- Igp Plastering Specialist LimitedPlasterers
- Orka Real Estate LtdProperty developers
- P S Decor LtdInstallers
- Project Commitment LimitedProperty developers
- S & S Building Contractors (UK) LimitedBuilders
- SM Auto Repairs LimitedMotor traders
- Soreng LimitedSpecialist contractors
- T.L. Projects LimitedLandscapers and gardeners
- The Secret Landscape Company LimitedBuilders
What happens if CNL 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 14417495
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 October 2022 (4 years ago)
- Registered office
- 293 Kenton Lane, Harrow, HA3 8RR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 12 October 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 Harrow
Other active plumbing and heating companies registered in Harrow.
- Commercial Gas Systems Ltd2012
- Conserve Greene Limited2026
- Coterm Limited2023
- Crafters Global Ltd2022
- Deans Plumbing and Heating Limited2018
- Delta Gas Ltd2014
- Devonald Plumbing Limited2026
- DM Plumbing and Heating Site Services Ltd2026
All plumbing and heating companies in Harrow · All trades in Harrow · Plumbers and heating engineers across the UK
Frequently asked questions
When are CNL Heating Ltd's accounts due?
CNL Heating Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is CNL Heating Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is CNL Heating Ltd still trading?
CNL 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 CNL Heating Ltd do?
CNL Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CNL Heating Ltd?
CNL Heating Ltd was incorporated on 13 October 2022, 4 years ago.
What is the penalty if CNL 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 CNL 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.