- Companies
- Machinery repair and installation
- Hull
- Caltech Air Conditioning Ltd
Caltech Air Conditioning Ltd
- Company number
- 04992126
- Incorporated
- 11 Dec 200322 years trading
- Registered office
- 53 Burton Road, Cottingham, Hull, East Yorkshire, HU16 5DZ
- Nature of business
- Repair of other equipment
Caltech Air Conditioning Ltd is a 22-year-old private limited company registered in Hull, company number 04992126, one of 185 machinery repair and installation companies in Hull. 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 up £3,099 (+26.4%) on the year before, to £15K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £31K against £16K owed within a year: 1.9 times cover.
- 3 employees on average during the year.
- 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 Mar 2025 | £15K | £20K | £31K | £16K | 3 |
| 31 Mar 2024 | £12K | £22K | £11K | 3 | |
| 31 Mar 2023 | £28K | £46K | £46K | £19K | 3 |
| 31 Mar 2022 | £39K | £48K | £49K | £11K | 3 |
| 31 Mar 2021 | £42K | £56K | £56K | £15K | 3 |
| 31 Mar 2020 | £31K | £37K | £37K | £7,830 | 3 |
| 31 Mar 2019 | £34K | £39K | £39K | £7,658 | 3 |
| 31 Mar 2018 | £32K | £37K | £37K | £8,038 | 3 |
| 31 Mar 2017 | £31K | £30K | £31K | £3,812 | |
| 31 Mar 2016 | £34K | £30K | £30K | £1,692 |
Where Caltech Air Conditioning Ltd is registered
The registered office is in Hull (HU16), in the East Riding of Yorkshire local authority area, Yorkshire and The Humber. Show HU16 5DZ on a map.
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- Haus of Sugi LimitedSpecialist contractors
- Rfi Property LimitedProperty developers
- Hollis Property Ventures LtdProperty developers
- Sewn Resistance LimitedMachinery repair and installation
- RG Ventilation Management LtdInstallers
- DP Roofing & Maintenance LimitedRoofers
- JCM Offshore LimitedInstallers
What happens if Caltech 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
- 04992126
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 December 2003 (22 years ago)
- Registered office
- 53 Burton Road, Cottingham, Hull, East Yorkshire, HU16 5DZ
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 11 December 2025
- Previous names
- Caltech (Coolair) Ltd (until 26 May 2016)
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 Hull
Other active machinery repair and installation companies registered in Hull.
- Carbide (UK) Limited2016
- Catering Journey Limited2026
- CC Blade Repair Ltd2026
- Cmac Tech Services Limited2026
- Complete Refrigeration Services Ltd2011
- Cooper Forklift Services Limited2022
- Coopers HGV & Plant Services Ltd2024
- Core Electrical Services Limited2002
All machinery repair and installation companies in Hull · All trades in Hull · Machinery repair and installation across the UK
Frequently asked questions
When are Caltech Air Conditioning Ltd's accounts due?
Caltech Air Conditioning Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Caltech 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 Caltech Air Conditioning Ltd still trading?
Caltech 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 Caltech Air Conditioning Ltd do?
Caltech Air Conditioning Ltd is registered under Repair of other equipment (SIC 33190).
How old is Caltech Air Conditioning Ltd?
Caltech Air Conditioning Ltd was incorporated on 11 December 2003, 22 years ago.
What is the penalty if Caltech 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 Caltech 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.