- Company number
- 16239008
- Incorporated
- 9 Feb 20251 year trading
- Registered office
- 66 White Lodge Close, Sutton, SM2 5TP
- Nature of business
- Construction of domestic buildings
Rock Solid Builders Ltd is a 1-year-old private limited company registered in Sutton, company number 16239008, one of 236 building contractors in Sutton. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 28 February 2026, as filed at Companies House.
Where Rock Solid Builders Ltd is registered
The registered office is in Sutton (SM2), in the Sutton local authority area, London. Show SM2 5TP on a map.
Other trade companies in SM2
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- Ry Rigging Services LtdInstallers
- JP Plumbing, Heating & Drainage Solutions LtdPlumbers and heating engineers
- MR & Sons Roofing & Building LtdBuilders
- Velora Facilities LimitedCleaning companies
- Sparkle Shark LtdCleaning companies
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- Bespoke Air Design and Installation LimitedPlumbers and heating engineers
What happens if Rock Solid Builders 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 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16239008
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 February 2025 (1 year ago)
- Registered office
- 66 White Lodge Close, Sutton, SM2 5TP
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 16 January 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 Sutton
Other active building contractors registered in Sutton.
- Roro 77 Ltd2022
- Ross Roberts Roofing Ltd2017
- RS Concept Ltd2025
- Russell Brothers Ltd2013
- S A Prime Solutions Ltd2024
- S C Diamond Property Services Ltd2023
- Sam Design & Build Ltd2017
- Saturn Structures Ltd2026
All building contractors in Sutton · All trades in Sutton · Builders across the UK
Frequently asked questions
When are Rock Solid Builders Ltd's accounts due?
Rock Solid Builders Ltd's next accounts are due at Companies House by 30 November 2027 (in 414 days), covering the period to 28 February 2027.
When is Rock Solid Builders Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Rock Solid Builders Ltd still trading?
Rock Solid Builders 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 Solid Builders Ltd do?
Rock Solid Builders Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Rock Solid Builders Ltd?
Rock Solid Builders Ltd was incorporated on 9 February 2025, 1 year ago.
What is the penalty if Rock Solid Builders 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 Solid Builders 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.