- Company number
- 11459737
- Incorporated
- 11 Jul 20188 years trading
- Registered office
- 64 Kingsway, Dunstable, LU5 4HE
- Nature of business
- Construction of commercial buildings
G&I Mechanical and Plumbing Ltd is a 8-year-old private limited company registered in Dunstable, company number 11459737, one of 213 building contractors in Dunstable. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 up £2,197 (+78.3%) on the year before, to £5,003.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £23K against £3,646 owed within a year: 6.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £5,003 | £15K | £23K | £3,646 | 1 |
| 31 Jul 2024 | £2,806 | £14K | £19K | £2,146 | 1 |
| 31 Jul 2023 | £2,806 | £14K | £19K | £2,181 | 1 |
| 31 Jul 2022 | £1 | £16K | £39K | £25K | 1 |
| 31 Jul 2021 | £1 | £16K | £58K | £42K | 1 |
| 31 Jul 2020 | £1 | £16K | £23K | £7,178 | 1 |
| 31 Jul 2019 | £392 | £1,001 | £1,001 | £609 | 1 |
Where G&I Mechanical and Plumbing Ltd is registered
The registered office is in Dunstable (LU5), in the Central Bedfordshire local authority area, East of England. Show LU5 4HE on a map.
Other trade companies in LU5
- Holz Stehlen Interiors LtdJoiners and carpenters
- Group V Motors LimitedMotor traders
- Marsiv LtdBuilders
- FB Engineering Solutions LtdSpecialist contractors
- Valmir Plastering LtdPlasterers
- Jeeva Engineering LtdCivil engineering
- Shinning Stars Cleaning LtdCleaning companies
- Coc Floring LtdBuilders
What happens if G&I Mechanical and Plumbing 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 11459737
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 July 2018 (8 years ago)
- Registered office
- 64 Kingsway, Dunstable, LU5 4HE
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 2 July 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Dunstable
Other active building contractors registered in Dunstable.
- G2 Construction and Consultancy Ltd2020
- Ga & Associates Construction Limited2021
- Gechnology Property Limited2019
- GGL.Construction Ltd2026
- GH Environment & Transport Limited2024
- GLM Plumbing & Heating Ltd2026
- GNF Services Ltd2017
- Golden Construction 2007 Ltd2020
All building contractors in Dunstable · All trades in Dunstable · Builders across the UK
Frequently asked questions
When are G&I Mechanical and Plumbing Ltd's accounts due?
G&I Mechanical and Plumbing Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is G&I Mechanical and Plumbing Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is G&I Mechanical and Plumbing Ltd still trading?
G&I Mechanical and Plumbing Ltd is listed as active on the Companies House register (checked 13 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 G&I Mechanical and Plumbing Ltd do?
G&I Mechanical and Plumbing Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is G&I Mechanical and Plumbing Ltd?
G&I Mechanical and Plumbing Ltd was incorporated on 11 July 2018, 8 years ago.
What is the penalty if G&I Mechanical and Plumbing 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 G&I Mechanical and Plumbing Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.