- Companies
- Plumbers and heating engineers
- London
- Dawson Mechanical Ltd
Dawson Mechanical Ltd
- Company number
- 16985508
- Incorporated
- 25 Jan 2026
- Registered office
- 3RD Floor, 86-90, Paul Street, London, EC2A 4NE
- Nature of business
- Plumbing, heat and air-conditioning installation
Dawson Mechanical Ltd is a newly incorporated private limited company registered in London, company number 16985508, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 25 October 2027, and its first CT600 is due at HMRC on 24 January 2028.
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.
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Who runs and owns Dawson Mechanical Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| C*** D*** | Director | Jan 2026 |
Person with significant control
Where Dawson Mechanical 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 Dawson Mechanical 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 25 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Oct 2027 to 25 Nov 2027 | £150 |
| 1 to 3 months late | 26 Nov 2027 to 25 Jan 2028 | £375 |
| 3 to 6 months late | 26 Jan 2028 to 25 Apr 2028 | £750 |
| More than 6 months late | From 26 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16985508
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 January 2026
- Registered office
- 3RD Floor, 86-90, Paul Street, London, EC2A 4NE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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 London
Other active plumbing and heating companies registered in London.
- Day Plumbing & Heating Ltd2018
- DB Mechanical Services Ltd2026
- Dbim Maintenance Services Limited2018
- DC Duct Services Ltd2018
- Dci Gas Installations Ltd2023
- DD Heat Ltd2026
- Deco Class Ltd2026
- Decor8S Services Ltd2020
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Dawson Mechanical Ltd's accounts due?
Dawson Mechanical Ltd's next accounts are due at Companies House by 25 October 2027 (in 378 days), covering the period to 31 January 2027.
When is Dawson Mechanical Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 24 January 2027, due by 24 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Dawson Mechanical Ltd still trading?
Dawson Mechanical 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 Dawson Mechanical Ltd do?
Dawson Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Dawson Mechanical Ltd?
Dawson Mechanical Ltd was incorporated on 25 January 2026, less than a year ago.
Who runs Dawson Mechanical Ltd?
Dawson Mechanical Ltd has 1 active director, the longest-serving appointed in Jan 2026. Their names and service addresses are on the Companies House register.
Who owns Dawson Mechanical Ltd?
One person or company has significant control of Dawson Mechanical Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Dawson Mechanical 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 Dawson Mechanical 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.