- Companies
- Installers
- High Wycombe
- Air Quality Services Ltd
Air Quality Services Ltd
- Company number
- 02630467
- Incorporated
- 18 Jul 199135 years trading
- Registered office
- Lincoln Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3RH
- Nature of business
- Other construction installation
Air Quality Services Ltd is a 35-year-old private limited company registered in High Wycombe, company number 02630467, one of 65 installation companies (insulation, lifts, shutters and similar) in High Wycombe. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the 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 Air Quality Services 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.
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 £546K (+60.2%) on the year before, to £1.5M.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £2M against £572K owed within a year: 3.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £1.5M | £801K | £2M | £572K | 0 |
| 31 Dec 2024 | £907K | £442K | £1.6M | £731K | 8 |
| 31 Dec 2023 | £137K | £9,929 | £1.1M | £939K | 8 |
| 31 Dec 2022 | -£101K | £10K | £1.3M | £1.4M | 7 |
| 31 Dec 2021 | -£485K | £3,300 | £812K | £1.2M | 7 |
Where Air Quality Services Ltd is registered
The registered office is in High Wycombe (HP12), in the Buckinghamshire local authority area, South East. Show HP12 3RH on a map.
Other trade companies in HP12
- Ta Repairs and Courier LtdMechanics and garages
- Precision Bodyworkz LimitedMechanics and garages
- Rha Developers LtdProperty developers
- Trade Cars Ukk LimitedMotor traders
- VMD Carpentry LtdProperty developers
- Ah New Tyres LtdMotor traders
- Georges Auto Repair LtdMechanics and garages
- Smart Breeze LimitedElectricians
What happens if Air Quality Services 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 02630467
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 July 1991 (35 years ago)
- Registered office
- Lincoln Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3RH
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 18 July 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in High Wycombe
Other active installation companies (insulation, lifts, shutters and similar) registered in High Wycombe.
- Alumi-Lite Ltd2009
- Ams Auto Door Solutions Ltd2025
- Andrews Home Improvements Ltd2014
- Archway Bricklaying Contractors Limited2013
- Artur and Son Stove and Flue System Ltd2023
- Aza Homeimprovement Limited2020
- Barnes Garden Outbuildings Ltd2012
- Beggars Moon Ltd2024
All installation companies (insulation, lifts, shutters and similar) in High Wycombe · All trades in High Wycombe · Installers across the UK
Frequently asked questions
When are Air Quality Services Ltd's accounts due?
Air Quality Services Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Air Quality Services Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Air Quality Services Ltd still trading?
Air Quality Services 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 Air Quality Services Ltd do?
Air Quality Services Ltd is registered under Other construction installation (SIC 43290).
How old is Air Quality Services Ltd?
Air Quality Services Ltd was incorporated on 18 July 1991, 35 years ago.
What is the penalty if Air Quality Services 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 Air Quality Services 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.