- Companies
- Civil engineering
- Carlisle
- S Dinwoodie Contractors Limited
S Dinwoodie Contractors Limited
- Company number
- 05702108
- Incorporated
- 8 Feb 200620 years trading
- Registered office
- 6 Brunswick Street, Carlisle, Cumbria, CA1 1PN
- Nature of business
- Construction of other civil engineering projects n.e.c.
S Dinwoodie Contractors Limited is a 20-year-old private limited company registered in Carlisle, company number 05702108, one of 48 civil engineering contractors in Carlisle. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £14K (+209.3%) on the year before, to £7,053.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- 3 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | £7,053 | £20K | £46K | 3 | |
| 28 Feb 2024 | -£6,453 | £6,971 | £44K | 3 | |
| 28 Feb 2023 | £7,749 | £20K | £43K | 3 | |
| 28 Feb 2022 | £8,272 | £7,002 | £44K | 2 | |
| 28 Feb 2021 | £672 | £11K | £41K | 2 | |
| 28 Feb 2020 | -£1,571 | £1,771 | £30K | 2 | |
| 28 Feb 2019 | £852 | £7,491 | £40K | ||
| 28 Feb 2018 | £2,471 | £2,891 | £38K | ||
| 28 Feb 2017 | £2,592 | £0 | |||
| 28 Feb 2016 | -£4,029 | £77 | £21K |
Public contracts won
S Dinwoodie Contractors Limited has one public sector contract award on record (2019). Source: Contracts Finder and Find a Tender award notices. For all 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. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Cumbria County Council | Countryside Access Maintenance | Ceiling, not shown | 1 Oct 2019 |
Where S Dinwoodie Contractors Limited is registered
The registered office is in Carlisle (CA1), in the Cumberland local authority area, North West. Show CA1 1PN on a map.
Other trade companies in CA1
- Fine Finish Interiors LtdJoiners and carpenters
- GB Groundworks LtdCivil engineering
- Oak End Construction & Management LtdProperty developers
- GS10 Trading LimitedMotor traders
- Overbuilt UK LtdMotor traders
- Fire Door 360 LimitedJoiners and carpenters
- Carlisle Remapping LtdMechanics and garages
- Adam G Smith LimitedPlumbers and heating engineers
Shared registered office
35 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if S Dinwoodie Contractors 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 05702108
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 February 2006 (20 years ago)
- Registered office
- 6 Brunswick Street, Carlisle, Cumbria, CA1 1PN
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 27 November 2025
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 Carlisle
Other active civil engineering contractors registered in Carlisle.
- Sire Contracting Ltd2024
- SMB Site Services Limited2014
- Ste Forster Ltd2019
- Steve Ker TM Ltd2024
- Straits1183 Limited2025
- Sustainable Groundworks Solutions Ltd2021
- Thompsons Services Ne Ltd2012
- Trse Limited2025
All civil engineering contractors in Carlisle · All trades in Carlisle · Civil engineering across the UK
Frequently asked questions
When are S Dinwoodie Contractors Limited's accounts due?
S Dinwoodie Contractors Limited's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is S Dinwoodie Contractors Limited's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is S Dinwoodie Contractors Limited still trading?
S Dinwoodie Contractors 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 S Dinwoodie Contractors Limited do?
S Dinwoodie Contractors Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is S Dinwoodie Contractors Limited?
S Dinwoodie Contractors Limited was incorporated on 8 February 2006, 20 years ago.
Has S Dinwoodie Contractors Limited won public sector contracts?
Yes. S Dinwoodie Contractors Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Cumbria County Council.
What is the penalty if S Dinwoodie Contractors 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 S Dinwoodie Contractors 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.