- Companies
- Electricians
- Colchester
- By-Air Conditioning Limited
By-Air Conditioning Limited
- Company number
- 04699014
- Incorporated
- 17 Mar 200323 years trading
- Registered office
- 9 Grange Way Business Park, Grange Way, Colchester, Essex, CO2 8HF
- Nature of business
- Electrical installation
By-Air Conditioning Limited is a 23-year-old private limited company registered in Colchester, company number 04699014, one of 209 electrical contractors in Colchester. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £65K (-74.1%) on the year before, to £23K.
- Current assets of £54K against £26K owed within a year: 2.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £23K | £36K | £54K | £26K | 0 |
| 30 Sep 2024 | £88K | £85K | £139K | £40K | 10 |
| 30 Sep 2023 | £157K | £88K | £267K | £104K | 15 |
| 30 Sep 2022 | £6,280 | £148K | £78K | 15 | |
| 30 Sep 2021 | £190K | £326K | £120K | 15 | |
| 30 Sep 2020 | £143K | £451K | £273K | 16 | |
| 30 Sep 2019 | £13K | £210K | £137K | ||
| 30 Sep 2018 | £14K | £234K | £189K |
Where By-Air Conditioning Limited is registered
The registered office is in Colchester (CO2), in the Colchester local authority area, East of England. Show CO2 8HF on a map.
Other trade companies in CO2
- Bravoryx Construct LtdSpecialist contractors
- VSG Projects Group LtdBuilders
- SBVC Auto Centre LtdMechanics and garages
- Matangi Auto Parts LtdMotor traders
- Able Renewables UK LtdInstallers
- GVV Ltd LtdBuilders
- CW Interior Transformations LtdFinishing trades
- Dynamic HV LtdCivil engineering
Also registered at this address
1 other company uses the same registered office as By-Air Conditioning Limited.
- Quality Air Conditioning & Refrigeration LtdPlumbers and heating engineers
What happens if By-Air Conditioning 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 04699014
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 March 2003 (23 years ago)
- Registered office
- 9 Grange Way Business Park, Grange Way, Colchester, Essex, CO2 8HF
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 1 February 2026
- Charges (mortgages)
- 1 outstanding of 3 registered
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Colchester
Other active electrical contractors registered in Colchester.
- Cableteq Ltd2020
- Cahill Corporation Limited2013
- CFB Electrical Ltd2012
- City M&E Ltd2017
- Clowser Electrical Ltd2026
- CM Electrical Essex Ltd2022
- Construction 4 U Limited2007
- Countywide Electrical Solutions Ltd2021
All electrical contractors in Colchester · All trades in Colchester · Electricians across the UK
Frequently asked questions
When are By-Air Conditioning Limited's accounts due?
By-Air Conditioning Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is By-Air Conditioning Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is By-Air Conditioning Limited still trading?
By-Air Conditioning 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 By-Air Conditioning Limited do?
By-Air Conditioning Limited is registered under Electrical installation (SIC 43210).
How old is By-Air Conditioning Limited?
By-Air Conditioning Limited was incorporated on 17 March 2003, 23 years ago.
What is the penalty if By-Air Conditioning 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 By-Air Conditioning 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.