- Companies
- Builders
- Staines-upon-Thames
- Gillco Construction Ltd
Gillco Construction Ltd
- Company number
- 12206154
- Incorporated
- 13 Sep 20197 years trading
- Registered office
- 19 Edinburgh Drive, Staines-upon-Thames, Surrey, TW18 1PJ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Gillco Construction Ltd is a 7-year-old private limited company registered in Staines-upon-Thames, company number 12206154, one of 106 building contractors in Staines-upon-Thames. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £4,066 (-75%) on the year before, to -£9,484.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- Current assets of £4,359 against £19K owed within a year: 0.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£9,484 | £2,290 | £4,359 | £19K | 0 |
| 30 Sep 2024 | -£5,418 | £6,624 | £8,741 | £14K | 0 |
| 30 Sep 2023 | £1,250 | £11K | £12K | £10K | 2 |
| 30 Sep 2022 | £5,284 | £14K | £14K | £8,416 | 0 |
| 30 Sep 2021 | £9,801 | £102 | £19K | £8,851 | 0 |
| 30 Sep 2020 | £12K | £142 | £19K | £7,031 | 0 |
Where Gillco Construction Ltd is registered
The registered office is in Staines-upon-Thames (TW18), in the Spelthorne local authority area, South East. Show TW18 1PJ 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
Also registered at this address
5 other companies use the same registered office as Gillco Construction Ltd.
- De Leeuw (London) LimitedSpecialist contractors
- Dominion Civils LimitedCivil engineering
- NRM Interiors LimitedSpecialist contractors
- Smart Aero Support LimitedMachinery repair and installation
- Unique Design & Construction LtdBuilders
What happens if Gillco Construction 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 12206154
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 September 2019 (7 years ago)
- Registered office
- 19 Edinburgh Drive, Staines-upon-Thames, Surrey, TW18 1PJ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 12 September 2026
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 Staines-upon-Thames
Other active building contractors registered in Staines-upon-Thames.
- Glalcontracts Ltd2024
- Global-Hitech Limited2013
- Gollen Building Services Ltd2023
- Grafted Construction Limited2024
- Gregkom Ltd2014
- GTP Build Contractors Ltd2025
- Hawthorne and Finch Limited2025
- Homecraft Solutions Ltd2026
All building contractors in Staines-upon-Thames · All trades in Staines-upon-Thames · Builders across the UK
Frequently asked questions
When are Gillco Construction Ltd's accounts due?
Gillco Construction Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Gillco Construction Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Gillco Construction Ltd still trading?
Gillco Construction 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 Gillco Construction Ltd do?
Gillco Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Gillco Construction Ltd?
Gillco Construction Ltd was incorporated on 13 September 2019, 7 years ago.
What is the penalty if Gillco Construction 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 Gillco Construction 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.