- Companies
- Plumbers and heating engineers
- Southport
- Dark Heating Ltd
Dark Heating Ltd
- Company number
- 16741096
- Incorporated
- 24 Sep 20251 year trading
- Registered office
- 1 Dawson Avenue, Southport, PR9 8JE
- Nature of business
- Plumbing, heat and air-conditioning installation
Dark Heating Ltd is a 1-year-old private limited company registered in Southport, company number 16741096, one of 42 plumbing and heating companies in Southport. Its next accounts are due at Companies House on 24 June 2027, and its first CT600 is due at HMRC on 23 September 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.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Dark Heating LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Dark Heating Ltd is registered
The registered office is in Southport (PR9), in the Sefton local authority area, North West. Show PR9 8JE on a map.
Other trade companies in PR9
- Cortex Fire and Security LtdMachinery repair and installation
- Desmo Engineering & Motorcycle Services LtdMotor traders
- Bird Building & Construction LtdBuilders
- Hit Happens Arc LimitedMechanics and garages
- Nja Construction Services LtdProperty developers
- Silverline Renovations LtdPlasterers
- Nestra Living LtdFinishing trades
- Churchtown Tree Surgery LimitedLandscapers and gardeners
What happens if Dark 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 24 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Jun 2027 to 24 Jul 2027 | £150 |
| 1 to 3 months late | 25 Jul 2027 to 24 Sep 2027 | £375 |
| 3 to 6 months late | 25 Sep 2027 to 24 Dec 2027 | £750 |
| More than 6 months late | From 25 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16741096
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 September 2025 (1 year ago)
- Registered office
- 1 Dawson Avenue, Southport, PR9 8JE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 23 September 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 Southport
Other active plumbing and heating companies registered in Southport.
- Dom Bathrooms Ltd2021
- Fieldan Property Southport Limited Limited2025
- G Green Heating & Plumbing Limited2014
- Hewitt Heating Limited2015
- Hill Mechanical Services Limited2025
- J Clegg Heating Limited2022
- J Garrow Heating & Plumbing Ltd2023
- Jjmechanical Services Ltd2023
All plumbing and heating companies in Southport · All trades in Southport · Plumbers and heating engineers across the UK
Frequently asked questions
When are Dark Heating Ltd's accounts due?
Dark Heating Ltd's next accounts are due at Companies House by 24 June 2027 (in 255 days), covering the period to 30 September 2026.
When is Dark Heating 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 23 September 2026, due by 23 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Dark Heating Ltd still trading?
Dark Heating Ltd is listed as active on the Companies House register (checked 12 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 Dark Heating Ltd do?
Dark Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Dark Heating Ltd?
Dark Heating Ltd was incorporated on 24 September 2025, 1 year ago.
What is the penalty if Dark 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 Dark Heating Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.