- Companies
- Installers
- Stanley
- Rockworks Limited
Rockworks Limited
- Company number
- 04479214
- Incorporated
- 5 Jul 200224 years trading
- Registered office
- Units 19-20 Stanelaw Way, Tanfield Lea Ind Est South, Stanley, County Durham, DH9 9XB
- Nature of business
- Other construction installation
Rockworks Limited is a 24-year-old private limited company registered in Stanley, company number 04479214, one of 11 installation companies (insulation, lifts, shutters and similar) in Stanley. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £27K (-10.8%) on the year before, to £222K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £508K against £290K owed within a year: 1.8 times cover.
- 5 employees on average, down from 6 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £222K | £12K | £508K | £290K | 5 |
| 31 Oct 2024 | £249K | £15K | £348K | £98K | 6 |
| 31 Oct 2023 | £255K | £88K | £398K | £133K | 8 |
| 31 Oct 2022 | £231K | £77K | £347K | £97K | 8 |
| 31 Oct 2021 | £183K | £57K | £305K | £92K | 8 |
| 31 Oct 2020 | £170K | £39K | £302K | £91K | 11 |
| 31 Oct 2019 | £166K | £4,651 | £679K | £520K | |
| 31 Oct 2018 | £98K | £229 | £477K | £387K | |
| 31 Oct 2017 | £107K | £229 | £532K | £427K | |
| 31 Oct 2016 | £62K | £213 | £497K | £437K |
Public contracts won
Rockworks Limited has 2 public sector contract awards on record; the ones with their own published value total £648K, from 2019 to 2024. Source: Contracts Finder and Find a Tender award notices. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Lichfield District Council1 award
- Ministry of Defence, Air Support, Flight Simulation and Synthetic Trainers Project Team (FSAST PT)1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Lichfield District Council | BLC Climbing Wall | £67K | 30 Sep 2024 |
| Ministry of Defence, Air Support, Flight Simulation and Synthetic Trainers Project Team (FSAST PT) | FsASTC/00151 | £582K | 15 Mar 2019 |
Where Rockworks Limited is registered
The registered office is in Stanley (DH9), in the County Durham local authority area, North East. Show DH9 9XB on a map.
Other trade companies in DH9
- Rdy Cleaning & Property Services LtdFinishing trades
- Table Ready Gaming LtdPainters and decorators
- Clean to Care LtdCleaning companies
- Cleanstay Cleaning LimitedCleaning companies
- Tiger Tyres TS LtdMechanics and garages
- Landlord Property Support Group LtdFinishing trades
- Aquashield Roofing LtdRoofers
- Epo Shipping Lane LtdMachinery repair and installation
What happens if Rockworks 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 04479214
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 July 2002 (24 years ago)
- Registered office
- Units 19-20 Stanelaw Way, Tanfield Lea Ind Est South, Stanley, County Durham, DH9 9XB
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 5 July 2026
- Charges (mortgages)
- 3 outstanding of 3 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 Stanley
Other active installation companies (insulation, lifts, shutters and similar) registered in Stanley.
- Speedcore Concrete Cutting Specialist Ltd2025
- Stanford Global Limited2018
- CW Utilities (North) Limited2024
- Envelope Inspections & Remedials Ltd2024
- JG Groundworks (North East) Ltd2023
- JTL MR Dig (Groundworks) Ltd2019
- KJBH Limited2025
- Lab96 Limited2023
All installation companies (insulation, lifts, shutters and similar) in Stanley · All trades in Stanley · Installers across the UK
Frequently asked questions
When are Rockworks Limited's accounts due?
Rockworks Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Rockworks Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Rockworks Limited still trading?
Rockworks 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 Rockworks Limited do?
Rockworks Limited is registered under Other construction installation (SIC 43290).
How old is Rockworks Limited?
Rockworks Limited was incorporated on 5 July 2002, 24 years ago.
Has Rockworks Limited won public sector contracts?
Yes. Rockworks Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £648K), most recently from Lichfield District Council.
What is the penalty if Rockworks 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 Rockworks 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.