- Companies
- Installers
- London
- Harmony Engineering Services Limited
Harmony Engineering Services Limited
- Company number
- 16658942
- Incorporated
- 19 Aug 20251 year trading
- Registered office
- 86-90 Paul Street, London, EC2A 4NE
- Nature of business
- Other construction installation; Engineering design activities for industrial process and production; Engineering related scientific and technical consulting activities; Other building and industrial cleaning activities
Harmony Engineering Services Limited is a 1-year-old private limited company registered in London, company number 16658942, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 19 May 2027, and its first CT600 is due at HMRC on 18 August 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Harmony Engineering Services Limited is registered
The registered office is in London (EC2A), in the Hackney local authority area, London. Show EC2A 4NE on a map.
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- Cenlora Cleaning Group LtdCleaning companies
Shared registered office
432 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 Harmony Engineering Services 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 19 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 May 2027 to 19 Jun 2027 | £150 |
| 1 to 3 months late | 20 Jun 2027 to 19 Aug 2027 | £375 |
| 3 to 6 months late | 20 Aug 2027 to 19 Nov 2027 | £750 |
| More than 6 months late | From 20 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16658942
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 August 2025 (1 year ago)
- Registered office
- 86-90 Paul Street, London, EC2A 4NE
- Nature of business
- Other construction installation (SIC 43290)
Engineering design activities for industrial process and production (SIC 71121)
Engineering related scientific and technical consulting activities (SIC 71122)
Other building and industrial cleaning activities (SIC 81229) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 18 August 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Harold Ernest Dixon Limited2025
- Harrison External Wall Insulation Systems Ltd2020
- Hart of Gardens and Building Maintenance Ltd2021
- Hartley Kitchens Ltd2023
- Haskir Constructions Limited2017
- Hawksmoor Properties Services Ltd2022
- Hawthorne Property Care Ltd2026
- Hayter Installation Services Ltd2026
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Harmony Engineering Services Limited's accounts due?
Harmony Engineering Services Limited's next accounts are due at Companies House by 19 May 2027 (in 218 days), covering the period to 31 August 2026.
When is Harmony Engineering Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 August 2026, due by 18 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Harmony Engineering Services Limited still trading?
Harmony Engineering Services 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 Harmony Engineering Services Limited do?
Harmony Engineering Services Limited is registered under Other construction installation (SIC 43290); Engineering design activities for industrial process and production (SIC 71121); Engineering related scientific and technical consulting activities (SIC 71122); Other building and industrial cleaning activities (SIC 81229).
How old is Harmony Engineering Services Limited?
Harmony Engineering Services Limited was incorporated on 19 August 2025, 1 year ago.
What is the penalty if Harmony Engineering Services 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 Harmony Engineering Services 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.