- Companies
- Civil engineering
- Southampton
- RP Windows & Building Services Limited
RP Windows & Building Services Limited
- Company number
- 05276401
- Incorporated
- 3 Nov 200421 years trading
- Registered office
- Tagus House, 9 Ocean Way, Southampton, Hampshire, SO14 3TJ
- Nature of business
- Construction of utility projects for fluids
RP Windows & Building Services Limited is a 21-year-old private limited company registered in Southampton, company number 05276401, one of 114 civil engineering contractors in Southampton. Its next accounts are due at Companies House on 29 August 2027, and the CT600 for the period to 29 November 2026 is due at HMRC on 29 November 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 £26K (-28.4%) on the year before, to £66K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £123K against £54K owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 29 Nov 2025 | £66K | £40K | £123K | £54K | 0 |
| 29 Nov 2024 | £92K | £195K | £279K | £180K | 1 |
| 29 Nov 2023 | £91K | £71K | £252K | £154K | 1 |
| 29 Nov 2022 | £71K | £34K | £247K | £160K | 2 |
| 29 Nov 2021 | £64K | £95K | £148K | £60K | 2 |
| 29 Nov 2020 | £9,519 | £59K | £107K | £70K | 2 |
| 30 Nov 2019 | £8,801 | £3,219 | £43K | £52K | 2 |
| 30 Nov 2018 | £444 | £18K | £55K | £64K | |
| 30 Nov 2017 | £576 | £16K | £68K | £77K | 1 |
| 30 Nov 2016 | £112 | £9,728 | £60K | £70K |
Where RP Windows & Building Services Limited is registered
The registered office is in Southampton (SO14), in the Southampton local authority area, South East. Show SO14 3TJ on a map.
Other trade companies in SO14
- Cat Garage LtdMechanics and garages
- Sonix LtdBuilders
- Vanie & Dick LtdBuilders
- 33 Motors LtdMotor traders
- Pure Light Cleaning LtdCleaning companies
- Cccjr Trading LimitedMotor traders
- Otess LtdFloor and wall tilers
- Bevertex LimitedElectricians
Shared registered office
83 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 RP Windows & Building Services 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 29 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Aug 2027 to 29 Sep 2027 | £150 |
| 1 to 3 months late | 30 Sep 2027 to 29 Nov 2027 | £375 |
| 3 to 6 months late | 30 Nov 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Nov 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 29 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Nov 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
- 05276401
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 November 2004 (21 years ago)
- Registered office
- Tagus House, 9 Ocean Way, Southampton, Hampshire, SO14 3TJ
- Nature of business
- Construction of utility projects for fluids (SIC 42210)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 November 2025
- Last confirmation statement
- 1 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 Southampton
Other active civil engineering contractors registered in Southampton.
- RSR Contractors Limited2014
- Rubex Construction Ltd2025
- Ryan Contracting UK Limited2006
- Safe TM Services Limited2015
- SB Surfacing Ltd2008
- Shane Dixon Limited2015
- Shewan Services Limited2013
- SKRC Integrated Infrastructure Ltd2026
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are RP Windows & Building Services Limited's accounts due?
RP Windows & Building Services Limited's next accounts are due at Companies House by 29 August 2027 (in 320 days), covering the period to 29 November 2026.
When is RP Windows & Building Services Limited's CT600 due?
The CT600 for the period to 29 November 2026 is due at HMRC by 29 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 August 2027.
Is RP Windows & Building Services Limited still trading?
RP Windows & Building Services 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 RP Windows & Building Services Limited do?
RP Windows & Building Services Limited is registered under Construction of utility projects for fluids (SIC 42210).
How old is RP Windows & Building Services Limited?
RP Windows & Building Services Limited was incorporated on 3 November 2004, 21 years ago.
What is the penalty if RP Windows & Building Services 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 RP Windows & Building Services 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.