- Company number
- 07551376
- Incorporated
- 3 Mar 201115 years trading
- Registered office
- 56 3RD Floor, 56 Wellington Street, Leeds, LS1 2EE
- Nature of business
- Glazing
Dortech Maintenance Limited is a 15-year-old private limited company registered in Leeds, company number 07551376, one of 33 glazing companies in Leeds. 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 £207K (+50.9%) on the year before, to £612K.
- Net assets rose in 2 of 7 year-on-year comparisons on record.
- 14 employees on average, up from 12 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 | £612K | £842K | £503K | 14 | |
| 30 Sep 2024 | £406K | £632K | £860K | £485K | 12 |
| 30 Sep 2023 | £243K | £497K | £663K | £445K | 15 |
| 30 Sep 2022 | 2 | ||||
| 30 Sep 2021 | £1 | 2 | |||
| 30 Sep 2020 | £1 | 2 | |||
| 30 Sep 2019 | £1 | ||||
| 30 Sep 2018 | £1 | ||||
| 30 Sep 2017 | £1 | ||||
| 30 Sep 2016 | £1 |
Public contracts won
Dortech Maintenance Limited has 2 public sector contract awards on record; the ones with their own published value total £16K (2025). Source: Contracts Finder and Find a Tender award notices. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- QE Facilities Ltd1 award
- Coventry University1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| QE Facilities Ltd | Regent Farm Road - Replacement Glass | £16K | 17 Nov 2025 |
| Coventry University | Scarborough Door and Window Replacements | 17 Mar 2025 |
Where Dortech Maintenance 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 Maintenance Limited.
- Dortech Architectural Systems LimitedSpecialist contractors
What happens if Dortech Maintenance 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 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
- 07551376
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 March 2011 (15 years ago)
- Registered office
- 56 3RD Floor, 56 Wellington Street, Leeds, LS1 2EE
- Nature of business
- Glazing (SIC 43342)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 1 October 2025
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
Similar companies in Leeds
Other active glazing companies registered in Leeds.
- Dotbur Limited2022
- Elbrus Cladding Ltd2018
- Hipco Yorkshire Ltd2016
- HK Windows Limited2022
- Lucent Glazing Ltd2025
- Luxe Glazing Ltd2025
- Mint Trade Frames Limited2025
- Nam Facades Ltd2014
All glazing companies in Leeds · All trades in Leeds · Glaziers across the UK
Frequently asked questions
When are Dortech Maintenance Limited's accounts due?
Dortech Maintenance Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Dortech Maintenance Limited'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 Dortech Maintenance Limited still trading?
Dortech Maintenance 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 Maintenance Limited do?
Dortech Maintenance Limited is registered under Glazing (SIC 43342).
How old is Dortech Maintenance Limited?
Dortech Maintenance Limited was incorporated on 3 March 2011, 15 years ago.
Has Dortech Maintenance Limited won public sector contracts?
Yes. Dortech Maintenance Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £16K), most recently from QE Facilities Ltd.
What is the penalty if Dortech Maintenance 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 Maintenance 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.