- Companies
- Plumbers and heating engineers
- Ac Air (Wiltshire) Ltd
Ac Air (Wiltshire) Ltd
- Company number
- 08357846
- Incorporated
- 14 Jan 201313 years trading
- Registered office
- 11 Biddel Springs, Highworth, Wiltshire, SN6 7BH
- Nature of business
- Plumbing, heat and air-conditioning installation
Ac Air (Wiltshire) Ltd is a 13-year-old private limited company registered in Highworth, company number 08357846, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £2,201 (+11.6%) on the year before, to £21K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £45K against £22K owed within a year: 2.0 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £21K | £45K | £22K | 2 | |
| 31 Jan 2025 | £19K | £35K | £5,766 | 1 | |
| 31 Jan 2024 | £19K | £35K | £5,766 | 1 | |
| 31 Jan 2023 | £1,523 | £34K | £3,382 | 1 | |
| 31 Jan 2022 | £19K | £56K | £10K | 1 | |
| 31 Jan 2021 | £375 | £13K | £2,434 | 0 | |
| 31 Jan 2020 | £100 | ||||
| 31 Jan 2019 | £100 | ||||
| 31 Jan 2018 | £100 | £100 | |||
| 31 Jan 2017 | £304 | £304 |
Who runs and owns Ac Air (Wiltshire) Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| M*** W*** | Director | Sep 2020 |
| E*** G*** | Director | May 2025 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| K*** B*** | Director | Jan 2013 | Dec 2017 |
| M*** H*** | Director | Jan 2013 | Apr 2025 |
People with significant control (2)
Where Ac Air (Wiltshire) Ltd is registered
The registered office is in Highworth (SN6), in the Swindon local authority area, South West. Show SN6 7BH on a map.
Other trade companies in SN6
- Rsmcar Repairs LtdMechanics and garages
- Ogilvie Hughes Electrical LtdElectricians
- Nelson Home Improvements LtdRoofers
- Atwoair LimitedPlumbers and heating engineers
- Callum Gibbs Plumbing and Heating LtdPlumbers and heating engineers
- Hampton Developments (Blunsdon) LimitedProperty developers
- Mays Property Group LtdProperty developers
- Cotswold Trade Centre LimitedProperty developers
What happens if Ac Air (Wiltshire) 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 08357846
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2013 (13 years ago)
- Registered office
- 11 Biddel Springs, Highworth, Wiltshire, SN6 7BH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 1 October 2025
- Previous names
- The Custom Door Company Ltd (until 28 Sep 2020)
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.
Frequently asked questions
When are Ac Air (Wiltshire) Ltd's accounts due?
Ac Air (Wiltshire) Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Ac Air (Wiltshire) Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Ac Air (Wiltshire) Ltd still trading?
Ac Air (Wiltshire) 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 Ac Air (Wiltshire) Ltd do?
Ac Air (Wiltshire) Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ac Air (Wiltshire) Ltd?
Ac Air (Wiltshire) Ltd was incorporated on 14 January 2013, 13 years ago.
Who runs Ac Air (Wiltshire) Ltd?
Ac Air (Wiltshire) Ltd has 2 active directors, the longest-serving appointed in Sep 2020. Their names and service addresses are on the Companies House register.
Who owns Ac Air (Wiltshire) Ltd?
2 people or companies have significant control of Ac Air (Wiltshire) Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Ac Air (Wiltshire) 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 Ac Air (Wiltshire) 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.