- Companies
- Plumbers and heating engineers
- Brentwood
- Haynes Mechanical Limited
Haynes Mechanical Limited
- Company number
- 11450184
- Incorporated
- 5 Jul 20188 years trading
- Registered office
- Ground Floor, Kings House, 101-135 Kings Road, Brentwood, Essex, CM14 4DR
- Nature of business
- Plumbing, heat and air-conditioning installation
Haynes Mechanical Limited is a 8-year-old private limited company registered in Brentwood, company number 11450184, one of 84 plumbing and heating companies in Brentwood. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 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 up £5,355 (+8.2%) on the year before, to -£60K.
- Net assets rose in 1 of 6 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | -£60K | £124K | 0 | ||
| 31 Jul 2024 | -£65K | £176K | 1 | ||
| 31 Jul 2023 | -£62K | £111K | £173K | 1 | |
| 31 Jul 2022 | -£19K | £0 | £150K | £169K | 1 |
| 31 Jul 2021 | £7,983 | £893 | £186K | £179K | 1 |
| 31 Jul 2020 | £27K | £115K | £207K | £181K | 1 |
| 31 Jul 2019 | £30K | £56K | £172K | £142K | 1 |
Where Haynes Mechanical Limited is registered
The registered office is in Brentwood (CM14), in the Brentwood local authority area, East of England. Show CM14 4DR 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
56 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 Haynes Mechanical 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 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
- 11450184
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 July 2018 (8 years ago)
- Registered office
- Ground Floor, Kings House, 101-135 Kings Road, Brentwood, Essex, CM14 4DR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 4 July 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.
- Heatrak Technical Services Ltd2003
- Holden & Salter Design Build Ltd2026
- Hunts Heating Ltd2026
- HVAC Plant Proving Limited1976
- J & L Coster (Drainage) Limited2001
- J & L Davison Plumbing Limited2015
- J Whites Plumbing & Heating Limited2021
- JKF Plumbing and Heating Ltd2017
All plumbing and heating companies in Brentwood · All trades in Brentwood · Plumbers and heating engineers across the UK
Frequently asked questions
When are Haynes Mechanical Limited's accounts due?
Haynes Mechanical Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Haynes Mechanical Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Haynes Mechanical Limited still trading?
Haynes Mechanical 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 Haynes Mechanical Limited do?
Haynes Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Haynes Mechanical Limited?
Haynes Mechanical Limited was incorporated on 5 July 2018, 8 years ago.
What is the penalty if Haynes Mechanical 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 Haynes Mechanical 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.