- Companies
- Cleaning companies
- Clydebank
- Iain Blair Windows Limited
Iain Blair Windows Limited
- Company number
- SC825585
- Incorporated
- 11 Oct 20242 years trading
- Registered office
- C/O B-Able Business Services, 11 Alexander Street, Clydebank, G81 1SQ
- Nature of business
- Window cleaning services
Iain Blair Windows Limited is a 2-year-old private limited company registered in Clydebank, company number SC825585, one of 23 cleaning companies in Clydebank. Companies House shows its accounts as overdue: they were due on 11 October 2026.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Iain Blair Windows Limited is registered
The registered office is in Clydebank (G81), in the West Dunbartonshire local authority area, Scotland. Show G81 1SQ on a map.
Other trade companies in G81
- A&E Stonework LtdProperty developers
- North Construction & Utilities LtdInstallers
- Tyres 24/7 LtdMechanics and garages
- FL Jointing Solutions LimitedInstallers
- Adn Secure LtdMotor traders
- Happy Clean Homes LimitedCleaning companies
- Smiley. Tyres & Exhaust LimitedMotor traders
- G15 Automotive Services LimitedMechanics and garages
Also registered at this address
9 other companies use the same registered office as Iain Blair Windows Limited.
- C Stewart Mechanical LtdMechanics and garages
- Frank Darcy Electrics LtdElectricians
- Gas-Tech Scotland LtdPlumbers and heating engineers
- Ib Doing Joinery LtdJoiners and carpenters
- JN Autos LimitedMechanics and garages
- John M Newlands Painters and Decorators LimitedPainters and decorators
- Kerr Plumbing & Heating LtdPlumbers and heating engineers
- Rake IT in Gardening Services LtdLandscapers and gardeners
- Simple Fuel Solutions LimitedMachinery repair and installation
What happens if Iain Blair Windows Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Oct 2026 to 11 Nov 2026 | £150 |
| 1 to 3 months late | 12 Nov 2026 to 11 Jan 2027 | £375 |
| 3 to 6 months late | 12 Jan 2027 to 11 Apr 2027 | £750 |
| More than 6 months late | From 12 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2026 | £200 |
| 3 months late | 31 Jan 2027 | another £200 |
| 6 months late | 30 Apr 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 2027 | 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
- SC825585
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 October 2024 (2 years ago)
- Registered office
- C/O B-Able Business Services, 11 Alexander Street, Clydebank, G81 1SQ
- Nature of business
- Window cleaning services (SIC 81221)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 October 2025
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Clydebank
Other active cleaning companies registered in Clydebank.
- Ionic Cleaning Ltd2024
- LWL Platinum Cleaning Services Ltd2025
- Omalk Ltd2025
- Optimum Group Services Ltd2022
- Premier Valeting Care Limited2026
- Pure Sparkle Cleaners Ltd2026
- Sapphire Cleaning Specialists Ltd2026
- Shine Window Cleaning Limited2024
All cleaning companies in Clydebank · All trades in Clydebank · Cleaning companies across the UK
Frequently asked questions
When are Iain Blair Windows Limited's accounts due?
Iain Blair Windows Limited's accounts were due at Companies House on 11 October 2026 and the register shows them as overdue.
When is Iain Blair Windows Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 10 October 2025, due by 10 October 2026, and one for the period to 31 October 2025, due by 31 October 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Iain Blair Windows Limited still trading?
Iain Blair Windows Limited is listed as active on the Companies House register (checked 12 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 Iain Blair Windows Limited do?
Iain Blair Windows Limited is registered under Window cleaning services (SIC 81221).
How old is Iain Blair Windows Limited?
Iain Blair Windows Limited was incorporated on 11 October 2024, 2 years ago.
What is the penalty if Iain Blair Windows 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 Iain Blair Windows Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.