- Companies
- Machinery repair and installation
- Southport
- Calm Heating and Renewables Limited
Calm Heating and Renewables Limited
- Company number
- 08299930
- Incorporated
- 20 Nov 201213 years trading
- Registered office
- 75 Halsall Road, Birkdale, Southport, PR8 3DD
- Nature of business
- Repair of other equipment
Calm Heating and Renewables Limited is a 13-year-old private limited company registered in Southport, company number 08299930, one of 38 machinery repair and installation companies in Southport. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £12 (-60%) on the year before, to £8.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £100 against £92 owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £8 | £100 | £92 | 0 | |
| 30 Nov 2024 | £20 | £72 | £92 | 0 | |
| 30 Nov 2023 | £48 | £44 | £92 | 1 | |
| 30 Nov 2022 | £2,174 | £3,918 | £6,092 | 1 | |
| 30 Nov 2021 | £2,893 | £2,893 | 0 | ||
| 30 Nov 2020 | £2,495 | £0 | £2,495 | 0 | |
| 30 Nov 2019 | £2,179 | £0 | £2,179 | 0 | |
| 30 Nov 2018 | £35 | £708 | £673 | ||
| 30 Nov 2017 | £1,005 | £1,005 | £0 | ||
| 30 Nov 2016 | £1,609 | £4,802 | £12K | £11K |
Where Calm Heating and Renewables Limited is registered
The registered office is in Southport (PR8), in the Sefton local authority area, North West. Show PR8 3DD on a map.
Other trade companies in PR8
- PH Drywall Finishes LtdBuilders
- Mac & Andrew’S Homea LtdBuilders
- Aureon Motors LimitedMotor traders
- Arcade Contruction LtdBuilders
- Selzy Homes LtdBuilders
- Sells and Sons Property LtdBuilders
- LSLS Homes LtdBuilders
- Clarity Building and Contrution LtdBuilders
Also registered at this address
1 other company uses the same registered office as Calm Heating and Renewables Limited.
- JLC Heating and Plumbing Specialists LimitedPlumbers and heating engineers
What happens if Calm Heating and Renewables 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 08299930
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2012 (13 years ago)
- Registered office
- 75 Halsall Road, Birkdale, Southport, PR8 3DD
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 20 November 2025
- Previous names
- Marshall Heating & Plumbing Services Limited (until 4 Jun 2026)
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Southport
Other active machinery repair and installation companies registered in Southport.
- Chris Tierney Machinery Services Limited2013
- Clegg Commercial Services Ltd2023
- Cortex Fire and Security Ltd2026
- D P Murphy Electrical Limited2014
- David Roberts Technical Engineering 10040 Limited2023
- Dow-Ce Ltd2024
- DRS Heat Transfer Ltd2013
- Electricwise North West Ltd2026
All machinery repair and installation companies in Southport · All trades in Southport · Machinery repair and installation across the UK
Frequently asked questions
When are Calm Heating and Renewables Limited's accounts due?
Calm Heating and Renewables Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Calm Heating and Renewables Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Calm Heating and Renewables Limited still trading?
Calm Heating and Renewables 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 Calm Heating and Renewables Limited do?
Calm Heating and Renewables Limited is registered under Repair of other equipment (SIC 33190).
How old is Calm Heating and Renewables Limited?
Calm Heating and Renewables Limited was incorporated on 20 November 2012, 13 years ago.
What is the penalty if Calm Heating and Renewables 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 Calm Heating and Renewables 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.