- Companies
- Electricians
- Grantham
- Air Con - 1 Ltd
Air Con - 1 Ltd
- Company number
- 15704475
- Incorporated
- 6 May 20242 years trading
- Registered office
- Willows Barkston Road, Marston, Grantham, NG32 2HN
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation
Air Con - 1 Ltd is a 2-year-old private limited company registered in Grantham, company number 15704475, one of 35 electrical contractors in Grantham. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Where Air Con - 1 Ltd is registered
The registered office is in Grantham (NG32), in the South Kesteven local authority area, East Midlands. Show NG32 2HN on a map.
Other trade companies in NG32
- S&F Autolocks LtdMotor traders
- ST Vehicles LtdMotor traders
- Desired Landscaping Outdoor Living and Lighting LtdLandscapers and gardeners
- Westwoods Property Services LtdPlumbers and heating engineers
- Barkston Car Wash LimitedCleaning companies
- Bwdcivils LimitedCivil engineering
- Allen American Classics LimitedMechanics and garages
- Amarga Construction LtdSpecialist contractors
What happens if Air Con - 1 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 15704475
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 May 2024 (2 years ago)
- Registered office
- Willows Barkston Road, Marston, Grantham, NG32 2HN
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 5 May 2026
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 Grantham
Other active electrical contractors registered in Grantham.
- All City Electrical Ltd2026
- Brewers Electrical Limited2003
- Brighton Wireworks Limited2025
- Cbrookes Electrical Ltd2014
- Datatech Electrical Limited2013
- DGM Electrical Contractor Limited2013
- DMW Electrical Ltd2023
- DRC Electrical Services Ltd2021
All electrical contractors in Grantham · All trades in Grantham · Electricians across the UK
Frequently asked questions
When are Air Con - 1 Ltd's accounts due?
Air Con - 1 Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Air Con - 1 Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Air Con - 1 Ltd still trading?
Air Con - 1 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 Con - 1 Ltd do?
Air Con - 1 Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Air Con - 1 Ltd?
Air Con - 1 Ltd was incorporated on 6 May 2024, 2 years ago.
What is the penalty if Air Con - 1 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 Con - 1 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.