- Company number
- 15366351
- Incorporated
- 21 Dec 20232 years trading
- Registered office
- The Den Easton Business Centre, Felix Road, Bristol, BS5 0HE
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Plumbing, heat and air-conditioning installation
Air Efficient Ltd is a 2-year-old private limited company registered in Bristol, company number 15366351, one of 809 building contractors in Bristol. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2024
From the balance sheet at 31 December 2024, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Air Efficient Ltd is registered
The registered office is in Bristol (BS5), in the Bristol, City of local authority area, South West. Show BS5 0HE on a map.
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- Hurleyhouse Motors LtdMotor traders
- Eternity’S Cleaning Corner LimitedCleaning companies
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Also registered at this address
2 other companies use the same registered office as Air Efficient Ltd.
- Fixpro Services LimitedPlumbers and heating engineers
- Olive and Malbec Properties LtdProperty developers
What happens if Air Efficient Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 15366351
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 December 2023 (2 years ago)
- Registered office
- The Den Easton Business Centre, Felix Road, Bristol, BS5 0HE
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 20 December 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Bristol
Other active building contractors registered in Bristol.
- Airliec Ltd2026
- Ak Constructions & Developers Ltd2023
- Akiko Design and Build Ltd2025
- Akp Group Holdings Ltd2026
- Alchemy Projects South West Ltd2018
- Aldenor Limited2026
- Alecci Construction Ltd2011
- All Trade Property Services Limited2009
All building contractors in Bristol · All trades in Bristol · Builders across the UK
Frequently asked questions
When are Air Efficient Ltd's accounts due?
Air Efficient Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Air Efficient Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Air Efficient Ltd still trading?
Air Efficient Ltd is listed as active on the Companies House register (checked 12 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 Efficient Ltd do?
Air Efficient Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Air Efficient Ltd?
Air Efficient Ltd was incorporated on 21 December 2023, 2 years ago.
What is the penalty if Air Efficient 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 Efficient Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.