- Companies
- Plumbers and heating engineers
- Braintree
- Collier Mechanical Ltd
Collier Mechanical Ltd
- Company number
- 15360054
- Incorporated
- 18 Dec 20232 years trading
- Registered office
- 21 ST. Marys Close, Braintree, CM7 5BW
- Nature of business
- Plumbing, heat and air-conditioning installation
Collier Mechanical Ltd is a 2-year-old private limited company registered in Braintree, company number 15360054, one of 52 plumbing and heating companies in Braintree. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
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 £2,694 (-34.6%) on the year before, to £5,100.
- Current assets of £7,269 against £8,752 owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £5,100 | £7,269 | £7,269 | £8,752 | 1 |
| 31 Dec 2024 | £7,794 | £3,943 | £3,943 | £3,789 | 1 |
Where Collier Mechanical Ltd is registered
The registered office is in Braintree (CM7), in the Braintree local authority area, East of England. Show CM7 5BW on a map.
Other trade companies in CM7
- Dsdunmowautoscom LimitedMotor traders
- Planners Planning LtdSpecialist contractors
- Am Property Maintenance One LtdPlumbers and heating engineers
- Triple 333 Motors LtdMotor traders
- Shelock & Rose LtdLandscapers and gardeners
- Top in City LtdMotor traders
- Gambell Construction Consultants LtdSpecialist contractors
- ND Commercial Tiling LtdBuilders
What happens if Collier 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 15360054
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 December 2023 (2 years ago)
- Registered office
- 21 ST. Marys Close, Braintree, CM7 5BW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 17 December 2025
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 Braintree
Other active plumbing and heating companies registered in Braintree.
- Coreline Surveying & Consulting Limited2026
- Croft Bathrooms Ltd2021
- D & J Plumbing & Heating (UK) Ltd2013
- Drainage365 Limited2013
- Epic London Pipe Services Ltd2024
- Epic Mechanical Services Ltd2024
- Epic Pipework Installation Co Ltd2011
- F. Bentley & Co. (Heating and Plumbing) Limited1971
All plumbing and heating companies in Braintree · All trades in Braintree · Plumbers and heating engineers across the UK
Frequently asked questions
When are Collier Mechanical Ltd's accounts due?
Collier Mechanical Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Collier Mechanical Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Collier Mechanical Ltd still trading?
Collier 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 Collier Mechanical Ltd do?
Collier Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Collier Mechanical Ltd?
Collier Mechanical Ltd was incorporated on 18 December 2023, 2 years ago.
What is the penalty if Collier 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 Collier 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.