- Companies
- Civil engineering
- Harrow
- Pro Groundwork Ltd
Pro Groundwork Ltd
- Company number
- 15749938
- Incorporated
- 30 May 20242 years trading
- Registered office
- 263 Rayners Lane, Harrow, HA2 9TU
- Nature of business
- Construction of utility projects for electricity and telecommunications
Pro Groundwork Ltd is a 2-year-old private limited company registered in Harrow, company number 15749938, one of 121 civil engineering contractors in Harrow. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Where Pro Groundwork Ltd is registered
The registered office is in Harrow (HA2), in the Harrow local authority area, London. Show HA2 9TU on a map.
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- Neon Systems LtdElectricians
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Also registered at this address
2 other companies use the same registered office as Pro Groundwork Ltd.
- Doca Construction LtdBuilders
- Dyd Groundwork LtdBuilders
What happens if Pro Groundwork 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 15749938
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 May 2024 (2 years ago)
- Registered office
- 263 Rayners Lane, Harrow, HA2 9TU
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 29 May 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 Harrow
Other active civil engineering contractors registered in Harrow.
- Project Management and Engineering Services Ltd2026
- Puremid Limited2015
- Rasan Engneering & Design Limited2013
- Rus Services Ltd2015
- Same Old Game Ltd2026
- SDS-UK(Structural Design Solutions) Ltd2011
- Service Mapping Ltd2022
- Sivanesa Engineering Ltd2018
All civil engineering contractors in Harrow · All trades in Harrow · Civil engineering across the UK
Frequently asked questions
When are Pro Groundwork Ltd's accounts due?
Pro Groundwork Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Pro Groundwork Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Pro Groundwork Ltd still trading?
Pro Groundwork 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 Pro Groundwork Ltd do?
Pro Groundwork Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Pro Groundwork Ltd?
Pro Groundwork Ltd was incorporated on 30 May 2024, 2 years ago.
What is the penalty if Pro Groundwork 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 Pro Groundwork 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.