- Companies
- Civil engineering
- Tonbridge
- Rock Rush Aggregates Ltd
Rock Rush Aggregates Ltd
- Company number
- 13305502
- Incorporated
- 31 Mar 20215 years trading
- Registered office
- Unit 9 the Stables Goblands Farm Business Centre Cemetery Lane, Hadlow, Tonbridge, TN11 0LT
- Nature of business
- Construction of other civil engineering projects n.e.c.
Rock Rush Aggregates Ltd is a 5-year-old private limited company registered in Tonbridge, company number 13305502, one of 19 civil engineering contractors in Tonbridge. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £31K (+198%) on the year before, to £46K.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £155K against £132K owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- 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 Mar 2025 | £46K | £155K | £132K | 1 | |
| 31 Mar 2024 | £16K | £56K | £68K | 1 | |
| 31 Mar 2023 | £8,767 | £36K | £33K | 1 | |
| 31 Mar 2022 | £15K | £41K | £35K | 1 |
Where Rock Rush Aggregates Ltd is registered
The registered office is in Tonbridge (TN11), in the Tonbridge and Malling local authority area, South East. Show TN11 0LT on a map.
Other trade companies in TN11
- Fowler & Sons LtdFinishing trades
- G8 Secure Services LimitedSpecialist contractors
- Ironhawk Facilities Management LimitedSpecialist contractors
- Kool Climate Solutions LtdPlumbers and heating engineers
- Elite Exterior Cleaning & Co. LtdCleaning companies
- D Genie LimitedSpecialist contractors
- Elevate Scaffold LimitedScaffolders
- CR Bathrooms LtdSpecialist contractors
Also registered at this address
11 other companies use the same registered office as Rock Rush Aggregates Ltd.
- A&B Projects LimitedFinishing trades
- All Flat Roofing Supplies LtdRoofers
- Avocet New Homes & Refurbishments LtdBuilders
- CS Properties (South East) LtdBuilders
- HKW Construction LimitedBuilders
- Innovations Heating and Electrical LtdPlumbers and heating engineers
- N Armstrong Construction and Refurbishment LtdBuilders
- R J Construction (Building Services) LimitedBuilders
- RKC Special Projects Rainscreen & Facades LtdRoofers
- RKC Special Projects Roofing & Cladding LtdRoofers
- Southern Membranes (Single Ply) LtdRoofers
What happens if Rock Rush Aggregates 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13305502
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2021 (5 years ago)
- Registered office
- Unit 9 the Stables Goblands Farm Business Centre Cemetery Lane, Hadlow, Tonbridge, TN11 0LT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 15 July 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Tonbridge
Other active civil engineering contractors registered in Tonbridge.
- S.C.G.Kent Ltd2011
- Sigrist Rail Electrification Services Ltd2019
- SNCL Associates Ltd2015
- Albanrailservices Ltd2007
- Armina Ltd2019
- Britannia Cutting Services Limited2002
- Cweeden Ltd2025
- Energon Connections Ltd2021
All civil engineering contractors in Tonbridge · All trades in Tonbridge · Civil engineering across the UK
Frequently asked questions
When are Rock Rush Aggregates Ltd's accounts due?
Rock Rush Aggregates Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Rock Rush Aggregates Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Rock Rush Aggregates Ltd still trading?
Rock Rush Aggregates 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 Rock Rush Aggregates Ltd do?
Rock Rush Aggregates Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Rock Rush Aggregates Ltd?
Rock Rush Aggregates Ltd was incorporated on 31 March 2021, 5 years ago.
What is the penalty if Rock Rush Aggregates 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 Rock Rush Aggregates 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.