- Companies
- Plumbers and heating engineers
- Rochester
- Aircool Systems (Southern) Limited
Aircool Systems (Southern) Limited
- Company number
- 09120628
- Incorporated
- 8 Jul 201412 years trading
- Registered office
- Unit 13 Neptune Close, Medway City Industrial Estate, Rochester, Kent, ME2 4LT
- Nature of business
- Plumbing, heat and air-conditioning installation
Aircool Systems (Southern) Limited is a 12-year-old private limited company registered in Rochester, company number 09120628, one of 95 plumbing and heating companies in Rochester. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 up £192K (+88.2%) on the year before, to -£26K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £420K against £451K owed within a year: 0.9 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 |
|---|---|---|---|---|---|
| 31 Jul 2025 | -£26K | £243K | £420K | £451K | 0 |
| 31 Jul 2024 | -£218K | £234K | £546K | £571K | 2 |
| 31 Jul 2023 | £108K | £224K | £366K | £251K | 2 |
| 31 Jul 2022 | £87K | £154K | £379K | £280K | 2 |
| 31 Jul 2021 | £101K | £95K | £298K | £173K | 2 |
| 31 Jul 2020 | £77K | £147K | £343K | £231K | 2 |
| 31 Jul 2019 | £88K | £106K | £216K | £149K | 2 |
| 31 Jul 2018 | £201K | £212K | £447K | £333K | 2 |
| 31 Jul 2017 | £174K | £80K | £227K | £206K | 3 |
| 31 Jul 2016 | £129K | £118K | £264K | £340K |
Who runs and owns Aircool Systems (Southern) Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| M*** S*** | Director | Jul 2014 |
| H*** B*** | Director | Nov 2024 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| J*** B*** | Director | Jul 2014 | Jun 2024 |
| M*** S*** | Director | Jul 2014 | Jul 2014 |
Person with significant control
Where Aircool Systems (Southern) Limited is registered
The registered office is in Rochester (ME2), in the Medway local authority area, South East. Show ME2 4LT on a map.
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What happens if Aircool Systems (Southern) 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 09120628
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 July 2014 (12 years ago)
- Registered office
- Unit 13 Neptune Close, Medway City Industrial Estate, Rochester, Kent, ME2 4LT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 4 July 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 Rochester
Other active plumbing and heating companies registered in Rochester.
- Akehurst Plumbing and Heating Ltd2025
- All Kent Cooling Limited2020
- Apex Pipework Ltd2020
- Apt Heating & Plumbing Limited2006
- Blades Air Limited2024
- Brightside Heating Services Limited2016
- C & S Gas Services Ltd2018
- C H E Plumbing and Heating Ltd2023
All plumbing and heating companies in Rochester · All trades in Rochester · Plumbers and heating engineers across the UK
Frequently asked questions
When are Aircool Systems (Southern) Limited's accounts due?
Aircool Systems (Southern) Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Aircool Systems (Southern) Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Aircool Systems (Southern) Limited still trading?
Aircool Systems (Southern) 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 Aircool Systems (Southern) Limited do?
Aircool Systems (Southern) Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Aircool Systems (Southern) Limited?
Aircool Systems (Southern) Limited was incorporated on 8 July 2014, 12 years ago.
Who runs Aircool Systems (Southern) Limited?
Aircool Systems (Southern) Limited has 2 active directors, the longest-serving appointed in Jul 2014. Their names and service addresses are on the Companies House register.
Who owns Aircool Systems (Southern) Limited?
One person or company has significant control of Aircool Systems (Southern) Limited: an individual (owns 75% or more of the shares).
What is the penalty if Aircool Systems (Southern) 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 Aircool Systems (Southern) 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.