- Companies
- Plumbers and heating engineers
- Brentwood
- Simply Air Conditioning & Heating Limited
Simply Air Conditioning & Heating Limited
- Company number
- 13598866
- Incorporated
- 2 Sep 20215 years trading
- Registered office
- First Floor, 81-85 High Street, Brentwood, Essex, CM14 4RR
- Nature of business
- Plumbing, heat and air-conditioning installation
Simply Air Conditioning & Heating Limited is a 5-year-old private limited company registered in Brentwood, company number 13598866, one of 84 plumbing and heating companies in Brentwood. Companies House shows its accounts as overdue: they were due on 30 June 2025.
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 £19K on the year before, to £19K.
- Current assets of £27K against £16K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2022 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2023 | £19K | £32K | £27K | £16K | 1 |
| 30 Sep 2022 | £1 | £1 | £1 | £0 | 1 |
Where Simply Air Conditioning & Heating Limited is registered
The registered office is in Brentwood (CM14), in the Brentwood local authority area, East of England. Show CM14 4RR on a map.
Other trade companies in CM14
- Solis Signature LimitedProperty developers
- Dubtech Spares LtdMotor traders
- Master Decor LtdPainters and decorators
- Glan Project Services LtdCleaning companies
- Honeybee Design and Interiors LtdInstallers
- Essex Tyres and MOT LimitedMechanics and garages
- Kava Collective LtdMachinery repair and installation
- Elite Roofing & Property Care LtdRoofers
Shared registered office
37 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Simply Air Conditioning & Heating Limited files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 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 Jul 2025 to 31 Jul 2025 | £150 |
| 1 to 3 months late | 1 Aug 2025 to 30 Sep 2025 | £375 |
| 3 to 6 months late | 1 Oct 2025 to 31 Dec 2025 | £750 |
| More than 6 months late | From 1 Jan 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2025 | £200 |
| 3 months late | 30 Dec 2025 | another £200 |
| 6 months late | 30 Mar 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2026 | 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
- 13598866
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 September 2021 (5 years ago)
- Registered office
- First Floor, 81-85 High Street, Brentwood, Essex, CM14 4RR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2023
- Last confirmation statement
- 1 September 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Brentwood
Other active plumbing and heating companies registered in Brentwood.
- SJB Mechanical & Building Services Limited2009
- South East Ducting Solutions Ltd2021
- South Essex Plumbing and Heating Limited2022
- SS Top Trade Ltd2023
- Synergy 7 Group Ltd1997
- T. M. S. Mechanical Services Limited2018
- TCM Plumbing & Heating Limited2017
- TDK Plumbing & Heating Ltd2026
All plumbing and heating companies in Brentwood · All trades in Brentwood · Plumbers and heating engineers across the UK
Frequently asked questions
When are Simply Air Conditioning & Heating Limited's accounts due?
Simply Air Conditioning & Heating Limited's accounts were due at Companies House on 30 June 2025 and the register shows them as overdue.
When is Simply Air Conditioning & Heating Limited's CT600 due?
The CT600 for the period to 30 September 2024 is due at HMRC by 30 September 2025, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2025.
Is Simply Air Conditioning & Heating Limited still trading?
Simply Air Conditioning & Heating Limited is listed as active on the Companies House register (checked 13 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 Simply Air Conditioning & Heating Limited do?
Simply Air Conditioning & Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Simply Air Conditioning & Heating Limited?
Simply Air Conditioning & Heating Limited was incorporated on 2 September 2021, 5 years ago.
What is the penalty if Simply Air Conditioning & Heating 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 Simply Air Conditioning & Heating Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.