- Companies
- Installers
- Hull
- Custom Steel Fabrications Ltd
Custom Steel Fabrications Ltd
- Company number
- 08121815
- Incorporated
- 27 Jun 201214 years trading
- Registered office
- Unit 7 ST Johns Business Park, ST Johns Grove, Hull, East Yorkahire, HU9 3RL
- Nature of business
- Other construction installation
Custom Steel Fabrications Ltd is a 14-year-old private limited company registered in Hull, company number 08121815, one of 103 installation companies (insulation, lifts, shutters and similar) in Hull. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 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 £72K (+106.6%) on the year before, to £4,460.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £254K against £257K owed within a year: 1.0 times cover.
- 17 employees on average, down from 21 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £4,460 | £40K | £254K | £257K | 17 |
| 31 Mar 2025 | -£67K | £848 | £163K | £246K | 21 |
| 31 Mar 2024 | £7,896 | £8,750 | £286K | £323K | 30 |
| 31 Mar 2023 | £149K | £143K | £514K | £402K | 31 |
| 31 Mar 2022 | £77K | £147K | £456K | £404K | 31 |
| 31 Mar 2021 | £36K | £30K | £335K | £302K | 22 |
| 31 Mar 2020 | -£2,241 | £15K | £267K | £238K | 31 |
| 31 Mar 2019 | £201K | £66K | £578K | £397K | 34 |
| 31 Mar 2018 | £159K | £42K | £348K | £235K | 29 |
| 31 Mar 2017 | £158K | £14K | £317K | £212K | 36 |
Public contracts won
Custom Steel Fabrications Ltd has 2 public sector contract awards on record; the ones with their own published value total £27K (2025). Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown.
Awards by year
Main buyers
- Kingstown Works Ltd2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Kingstown Works Ltd | 127/24 - Gleneagles - External and Internal Sub-contractors | Ceiling, not shown | 28 Jan 2025 |
| Kingstown Works Ltd | Gleneagles - External and Internal Sub-contractors | £27K | 28 Jan 2025 |
Where Custom Steel Fabrications Ltd is registered
The registered office is in Hull (HU9), in the Kingston upon Hull, City of local authority area, Yorkshire and The Humber. Show HU9 3RL on a map.
Other trade companies in HU9
- Frank Barton Motors LtdMechanics and garages
- Trussly LimitedBuilders
- Humber Interiors LtdJoiners and carpenters
- Designer Drives and Landscapes LtdLandscapers and gardeners
- Caa Civils LtdCivil engineering
- Haynes Scaffolding LtdScaffolders
- Akojenu Group LtdBuilders
- PCR Elite LtdCleaning companies
What happens if Custom Steel Fabrications 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 08121815
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 June 2012 (14 years ago)
- Registered office
- Unit 7 ST Johns Business Park, ST Johns Grove, Hull, East Yorkahire, HU9 3RL
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 27 June 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Hull
Other active installation companies (insulation, lifts, shutters and similar) registered in Hull.
- D.Davies Consultancy Services Ltd2026
- Daedalus Construction Limited2016
- DB Site Welding Services Limited2020
- Delt Furniture Installations Ltd2004
- Delta Insulation Services Limited2003
- DLG Flooring Limited2014
- Dovedale Dampcure Services Ltd2014
- Dovyd Services Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Hull · All trades in Hull · Installers across the UK
Frequently asked questions
When are Custom Steel Fabrications Ltd's accounts due?
Custom Steel Fabrications Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Custom Steel Fabrications Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Custom Steel Fabrications Ltd still trading?
Custom Steel Fabrications 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 Custom Steel Fabrications Ltd do?
Custom Steel Fabrications Ltd is registered under Other construction installation (SIC 43290).
How old is Custom Steel Fabrications Ltd?
Custom Steel Fabrications Ltd was incorporated on 27 June 2012, 14 years ago.
Has Custom Steel Fabrications Ltd won public sector contracts?
Yes. Custom Steel Fabrications Ltd has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £27K), most recently from Kingstown Works Ltd.
What is the penalty if Custom Steel Fabrications 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 Custom Steel Fabrications 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.