- Companies
- Installers
- Staines-upon-Thames
- Jomar Mechanical Services Limited
Jomar Mechanical Services Limited
- Company number
- 13125790
- Incorporated
- 11 Jan 20215 years trading
- Registered office
- 104 Petersfield Avenue, Staines-upon-Thames, TW18 1DJ
- Nature of business
- Other construction installation
Jomar Mechanical Services Limited is a 5-year-old private limited company registered in Staines-upon-Thames, company number 13125790, one of 26 installation companies (insulation, lifts, shutters and similar) in Staines-upon-Thames. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £8,380 (-289.1%) on the year before, to -£5,481.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £167 against £22K owed within a year: 0.0 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | -£5,481 | £167 | £22K | 2 | |
| 31 Jan 2024 | £2,899 | £1,070 | £20K | 1 | |
| 31 Jan 2023 | £1,969 | £2,698 | £1,492 | 1 | |
| 31 Jan 2022 | £1,259 | £1,258 | £1,138 | 0 |
Where Jomar Mechanical Services Limited is registered
The registered office is in Staines-upon-Thames (TW18), in the Spelthorne local authority area, South East. Show TW18 1DJ on a map.
Other trade companies in TW18
- Cleenspace LtdCleaning companies
- Querceto Property LtdProperty developers
- Deep Property Group LtdProperty developers
- Icm Power LtdMachinery repair and installation
- Staines Scooter LtdMotor traders
- JBS All-Trades LtdPlumbers and heating engineers
- Almisor Solar LtdBuilders
- Greenzone Cooling LtdPlumbers and heating engineers
What happens if Jomar Mechanical 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13125790
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 January 2021 (5 years ago)
- Registered office
- 104 Petersfield Avenue, Staines-upon-Thames, TW18 1DJ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 10 January 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 Staines-upon-Thames
Other active installation companies (insulation, lifts, shutters and similar) registered in Staines-upon-Thames.
- JP'S Handy Services Ltd2025
- KND Building Group Ltd2026
- Kynance Vale Ltd2017
- Majestic Project Solutions Ltd2023
- Mehar Design & Build Ltd2025
- Product Fusions Group Limited2026
- R&B Insulation Services Limited2001
- Shellman Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Staines-upon-Thames · All trades in Staines-upon-Thames · Installers across the UK
Frequently asked questions
When are Jomar Mechanical Services Limited's accounts due?
Jomar Mechanical Services Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Jomar Mechanical Services Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Jomar Mechanical Services Limited still trading?
Jomar Mechanical 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 Jomar Mechanical Services Limited do?
Jomar Mechanical Services Limited is registered under Other construction installation (SIC 43290).
How old is Jomar Mechanical Services Limited?
Jomar Mechanical Services Limited was incorporated on 11 January 2021, 5 years ago.
What is the penalty if Jomar Mechanical 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 Jomar Mechanical 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.