- Companies
- Specialist contractors
- Leeds
- Dortech Architectural Systems Limited
Dortech Architectural Systems Limited
- Company number
- 02538595
- Incorporated
- 11 Sep 199036 years trading
- Registered office
- 56 3RD Floor, 56 Wellington Street, Leeds, LS1 2EE
- Nature of business
- Other specialised construction activities n.e.c.
Dortech Architectural Systems Limited is a 36-year-old private limited company registered in Leeds, company number 02538595, one of 356 specialist construction companies in Leeds. Its next accounts are due at Companies House on 29 June 2027, and the CT600 for the period to 29 September 2026 is due at HMRC on 29 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 £77K (+9.3%) on the year before, to £906K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- 42 employees on average, down from 43 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 | £906K | £1.8M | £2.2M | 42 | |
| 30 Sep 2024 | £829K | £1.1M | £2.9M | £2.1M | 43 |
| 30 Sep 2023 | £688K | £1.2M | £2.8M | £2.2M | 41 |
| 30 Sep 2022 | £591K | £1.3M | £3.2M | £2.7M | 52 |
| 30 Sep 2021 | £466K | £1.1M | £2.2M | 57 | |
| 30 Sep 2020 | £455K | £2.4M | £4.3M | £3.8M | 60 |
| 30 Sep 2019 | £301K | £682K | £2.6M | £2.4M | 59 |
| 30 Sep 2018 | £387K | £1M | £3.2M | £3M | 55 |
| 30 Sep 2017 | £304K | £955K | £2.5M | £2.2M | 57 |
| 30 Sep 2016 | £56K | £807K | £2.6M | £2.5M | 56 |
Public contracts won
Dortech Architectural Systems Limited has one public sector contract award on record; the ones with their own published value total £50K (2022). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| South Tyneside Council | Glazing Panel Replacement: Haven Point ,Pier Parade ,South Shields, NE33 2JS | £50K | 8 Feb 2022 |
Where Dortech Architectural Systems Limited is registered
The registered office is in Leeds (LS1), in the Leeds local authority area, Yorkshire and The Humber. Show LS1 2EE on a map.
Other trade companies in LS1
- Gridlink Infrastructure LtdCivil engineering
- Kleos Homes LtdBuilders
- Hillco Construction LtdBuilders
- Ironpeak Roofing Services LtdRoofers
- Anchorstone Construct LimitedBuilders
- Luxe Cleanings Services LtdCleaning companies
- Ajel Properties LimitedProperty developers
- The Crossing Group UK LtdCivil engineering
Also registered at this address
1 other company uses the same registered office as Dortech Architectural Systems Limited.
- Dortech Maintenance LimitedGlaziers
What happens if Dortech Architectural Systems 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Jun 2027 to 29 Jul 2027 | £150 |
| 1 to 3 months late | 30 Jul 2027 to 29 Sep 2027 | £375 |
| 3 to 6 months late | 30 Sep 2027 to 29 Dec 2027 | £750 |
| More than 6 months late | From 30 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Sep 2027 | £200 |
| 3 months late | 29 Dec 2027 | another £200 |
| 6 months late | 29 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 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
- 02538595
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 September 1990 (36 years ago)
- Registered office
- 56 3RD Floor, 56 Wellington Street, Leeds, LS1 2EE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 29 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 5 August 2026
- Charges (mortgages)
- 1 outstanding of 4 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Leeds
Other active specialist construction companies registered in Leeds.
- DPL Insulations and Ventilations Ltd2006
- Drylining4All Ltd2026
- Eco Energy Experts Ltd2019
- Ecofill Group Limited2022
- Edifice Interiors Limited2019
- Emerald Site Solutions Limited2014
- Emerson Mechanical Solutions Ltd2007
- Enhance Automation Limited2010
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Frequently asked questions
When are Dortech Architectural Systems Limited's accounts due?
Dortech Architectural Systems Limited's next accounts are due at Companies House by 29 June 2027 (in 260 days), covering the period to 29 September 2026.
When is Dortech Architectural Systems Limited's CT600 due?
The CT600 for the period to 29 September 2026 is due at HMRC by 29 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 June 2027.
Is Dortech Architectural Systems Limited still trading?
Dortech Architectural Systems 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 Dortech Architectural Systems Limited do?
Dortech Architectural Systems Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Dortech Architectural Systems Limited?
Dortech Architectural Systems Limited was incorporated on 11 September 1990, 36 years ago.
Has Dortech Architectural Systems Limited won public sector contracts?
Yes. Dortech Architectural Systems Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £50K), most recently from South Tyneside Council.
What is the penalty if Dortech Architectural Systems 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 Dortech Architectural Systems 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.