- Companies
- Installers
- Swansea
- Door System Installations Ltd
Door System Installations Ltd
- Company number
- 07043163
- Incorporated
- 14 Oct 200916 years trading
- Registered office
- C/O Bevan Buckland LLP Ground Floor, Cardigan House, Castle Court, Swansea Enterprise Park, Swansea, SA7 9LA
- Nature of business
- Other construction installation
Door System Installations Ltd is a 16-year-old private limited company registered in Swansea, company number 07043163, one of 58 installation companies (insulation, lifts, shutters and similar) in Swansea. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £99K (+60.1%) on the year before, to £265K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £619K against £309K owed within a year: 2.0 times cover.
- 8 employees on average, up from 7 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £265K | £115K | £619K | £309K | 8 |
| 30 Sep 2024 | £165K | £13K | £482K | £324K | 7 |
| 30 Sep 2023 | £161K | £176K | £490K | £330K | 10 |
| 31 Mar 2022 | £43K | £8,166 | £369K | £311K | 10 |
| 31 Mar 2021 | £78K | £15K | £456K | £347K | 10 |
| 31 Mar 2020 | £46K | £7,576 | £416K | £382K | 8 |
| 31 Mar 2019 | £22K | £2,628 | £361K | £353K | 8 |
| 31 Mar 2018 | £22K | £13K | £514K | £515K | 10 |
| 31 Mar 2017 | -£69K | £5,957 | £479K | £573K | 14 |
| 31 Mar 2016 | £68K | £19K | £729K | £676K |
Public contracts won
Door System Installations Ltd has one public sector contract award on record; the ones with their own published value total £97K (2025). Source: Contracts Finder and Find a Tender award notices.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Kirklees Council | Service, Maintenance and Repairs to Automatic Doors | £97K | 24 Mar 2025 |
Where Door System Installations Ltd is registered
The registered office is in Swansea (SA7), in the Swansea local authority area, Wales. Show SA7 9LA on a map.
Other trade companies in SA7
- Foundry & Co Construction LtdBuilders
- Pops Power Solutions LtdElectricians
- Perfect Roofing and Home Maintenance LimitedRoofers
- Eveo Engineering LtdElectricians
- Performance Bunker Liner LimitedSpecialist contractors
- Swan Roofing LimitedRoofers
- Air Conditioning & Heat Pumps LimitedPlumbers and heating engineers
- Ogm Pristine Cleaning LtdCleaning companies
Also registered at this address
9 other companies use the same registered office as Door System Installations Ltd.
- Aquasol Water Systems LtdCivil engineering
- Carsmetics LtdMechanics and garages
- Databid LimitedGroundworks and demolition
- Davies Praedium LtdProperty developers
- DHWD LimitedBuilders
- Efficient Living Solutions UK LtdInstallers
- Elitestone LimitedProperty developers
- Ian Davies Plant LimitedSpecialist contractors
- S W Heating & Plumbing (Gower) LtdPlumbers and heating engineers
What happens if Door System Installations 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 07043163
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 October 2009 (16 years ago)
- Registered office
- C/O Bevan Buckland LLP Ground Floor, Cardigan House, Castle Court, Swansea Enterprise Park, Swansea, SA7 9LA
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 12 January 2026
- Charges (mortgages)
- 1 outstanding of 3 registered
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Swansea
Other active installation companies (insulation, lifts, shutters and similar) registered in Swansea.
- East Midlands Underfloor Heating Store Ltd2016
- Efficient Living Solutions UK Ltd2023
- Energywise-Wales Limited2012
- Fairtrade Windows and Doors Ltd2023
- Gee Utilities Services Limited2017
- Gower Building Services Limited2024
- Green Dream Concepts Ltd2023
- J & M Sullivan Limited2019
All installation companies (insulation, lifts, shutters and similar) in Swansea · All trades in Swansea · Installers across the UK
Frequently asked questions
When are Door System Installations Ltd's accounts due?
Door System Installations Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Door System Installations Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Door System Installations Ltd still trading?
Door System Installations 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 Door System Installations Ltd do?
Door System Installations Ltd is registered under Other construction installation (SIC 43290).
How old is Door System Installations Ltd?
Door System Installations Ltd was incorporated on 14 October 2009, 16 years ago.
Has Door System Installations Ltd won public sector contracts?
Yes. Door System Installations Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £97K), most recently from Kirklees Council.
What is the penalty if Door System Installations 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 Door System Installations 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.