- Companies
- Plumbers and heating engineers
- A & K Air Conditioning Ltd
A & K Air Conditioning Ltd
- Company number
- 03380234
- Incorporated
- 3 Jun 199729 years trading
- Registered office
- Brook House, The Street, Barton Mills, Suffolk, IP28 6AA
- Nature of business
- Plumbing, heat and air-conditioning installation
A & K Air Conditioning Ltd is a 29-year-old private limited company registered in Barton Mills, company number 03380234, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £90K (-10.9%) on the year before, to £731K.
- Net assets rose in 1 of 6 year-on-year comparisons on record.
- Current assets of £662K against £23K owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £731K | £662K | £23K | 0 | |
| 31 Mar 2025 | £820K | £761K | £16K | 0 | |
| 31 Mar 2024 | £848K | £807K | £40K | 3 | |
| 31 Mar 2023 | £901K | £963K | £88K | 3 | |
| 31 Mar 2022 | £818K | £717K | £41K | 0 | |
| 31 Mar 2021 | £875K | £441K | £778K | £46K | 7 |
| 31 Mar 2020 | £877K | £558K | £838K | £134K | 14 |
Where A & K Air Conditioning Ltd is registered
The registered office is in Barton Mills (IP28), in the West Suffolk local authority area, East of England. Show IP28 6AA on a map.
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- SC Joinery and Building Solutions LtdBuilders
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- E.B. Fitch Historic Buildings Specialists LtdPainters and decorators
What happens if A & K Air Conditioning 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 03380234
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 June 1997 (29 years ago)
- Registered office
- Brook House, The Street, Barton Mills, Suffolk, IP28 6AA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 1 June 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
Other active plumbing and heating companies.
- Sonning Common Heating & Plumbing Services Limited1997
- Current Development Limited1997
- Redhurst Heating Limited1997
- M.J.M. Plumbing & Heating Limited1997
- Stables Heating (Contractors) Limited1997
- C G Plumbing & Heating Limited1997
- Anglesey Heating & Plumbing Services Ltd.1997
- P.J. Jones (Plumbing and Heating) Ltd1997
Frequently asked questions
When are A & K Air Conditioning Ltd's accounts due?
A & K Air Conditioning Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is A & K Air Conditioning Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is A & K Air Conditioning Ltd still trading?
A & K Air Conditioning 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 A & K Air Conditioning Ltd do?
A & K Air Conditioning Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is A & K Air Conditioning Ltd?
A & K Air Conditioning Ltd was incorporated on 3 June 1997, 29 years ago.
What is the penalty if A & K Air Conditioning 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 A & K Air Conditioning 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.