- Companies
- Machinery repair and installation
- London
- Optimum Climate Control Ltd
Optimum Climate Control Ltd
- Company number
- 09589545
- Incorporated
- 13 May 201511 years trading
- Registered office
- 3RD Floor, 86 - 90, Paul Street, London, EC2A 4NE
- Nature of business
- Repair of other equipment; Plumbing, heat and air-conditioning installation
Optimum Climate Control Ltd is a 11-year-old private limited company registered in London, company number 09589545, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
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 £51K (-34.8%) on the year before, to £95K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £131K against £38K owed within a year: 3.4 times cover.
- 7 employees on average, up from 6 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £95K | £131K | £38K | 7 | |
| 31 May 2025 | £145K | £224K | £83K | 6 | |
| 31 May 2024 | £73K | £95K | £28K | 10 | |
| 31 May 2023 | £168K | £252K | £88K | 6 | |
| 31 May 2022 | £95K | £104K | £15K | 5 | |
| 31 May 2021 | £129K | £146K | £21K | 5 | |
| 31 May 2020 | £182K | £199K | £200K | £24K | 5 |
| 31 May 2019 | £176K | £224K | £224K | £51K | 5 |
| 31 May 2018 | £57K | £78K | £22K | 5 | |
| 31 May 2017 | £68K | £100K | £34K |
Where Optimum Climate Control Ltd is registered
The registered office is in London (EC2A), in the Hackney local authority area, London. Show EC2A 4NE on a map.
Other trade companies in EC2A
- Simlan Management LtdCleaning companies
- Renova Secure LtdBuilders
- Auraglasspartitions LtdGlaziers
- A2D Professional Cleaning LtdCleaning companies
- Matson Co. LtdProperty developers
- Paint Hub LimitedMechanics and garages
- SJK Construction & Management LtdBuilders
- Cenlora Cleaning Group LtdCleaning companies
Shared registered office
1,581 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 Optimum Climate Control 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2029 | 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
- 09589545
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 May 2015 (11 years ago)
- Registered office
- 3RD Floor, 86 - 90, Paul Street, London, EC2A 4NE
- Nature of business
- Repair of other equipment (SIC 33190)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 17 March 2026
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 London
Other active machinery repair and installation companies registered in London.
- Orange Lift Installations Limited2023
- Osama Energy Limited2025
- Otd Trading Limited2025
- Ovi Mobile Mechanic Ltd2026
- Ovs Recycling Ltd2024
- Owl Marine Ltd2026
- Oxcart Power Systems Engineering Ltd2025
- Oxford Meditech Ltd.2002
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Frequently asked questions
When are Optimum Climate Control Ltd's accounts due?
Optimum Climate Control Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Optimum Climate Control Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Optimum Climate Control Ltd still trading?
Optimum Climate Control 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 Optimum Climate Control Ltd do?
Optimum Climate Control Ltd is registered under Repair of other equipment (SIC 33190); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Optimum Climate Control Ltd?
Optimum Climate Control Ltd was incorporated on 13 May 2015, 11 years ago.
What is the penalty if Optimum Climate Control 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 Optimum Climate Control 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.