- Companies
- Installers
- Ruislip
- Blair Builders Ltd
Blair Builders Ltd
- Company number
- 17097700
- Incorporated
- 17 Mar 2026
- Registered office
- Morritt House 54-60 Station Approach, South Ruislip, Ruislip, HA4 6SA
- Nature of business
- Other construction installation
Blair Builders Ltd is a newly incorporated private limited company registered in Ruislip, company number 17097700, one of 56 installation companies (insulation, lifts, shutters and similar) in Ruislip. Its next accounts are due at Companies House on 17 December 2027, and its first CT600 is due at HMRC on 16 March 2028.
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 Blair Builders Ltd is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 6SA on a map.
Other trade companies in HA4
- SSC London LtdGroundworks and demolition
- DCR Industriltdal LtdPainters and decorators
- Katardino Monten for General Contracting and Supplies LtdCivil engineering
- Apex Build & Move LtdBuilders
- Ridgeway Building Contracts LimitedProperty developers
- Azya Farah LtdBuilders
- Howdens Roofing & Guttering LimitedRoofers
- Vetro Glazing LimitedGlaziers
Also registered at this address
2 other companies use the same registered office as Blair Builders Ltd.
- Elite -Tec Autoservice Centre LtdMechanics and garages
- S&P Consultancy LtdCivil engineering
What happens if Blair Builders 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 17 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Dec 2027 to 17 Jan 2028 | £150 |
| 1 to 3 months late | 18 Jan 2028 to 17 Mar 2028 | £375 |
| 3 to 6 months late | 18 Mar 2028 to 17 Jun 2028 | £750 |
| More than 6 months late | From 18 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 17097700
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 March 2026
- Registered office
- Morritt House 54-60 Station Approach, South Ruislip, Ruislip, HA4 6SA
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
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 Ruislip
Other active installation companies (insulation, lifts, shutters and similar) registered in Ruislip.
- C J Contracts (UK) Limited2014
- Carney Mechanical Ltd2026
- Complete Build & Maintain Ltd2024
- Defendentry Security Solutions Ltd2026
- Eastside Building Limited2025
- Ecolo Synergy Hampstead Ltd2023
- Ephexis Ltd2025
- Essex Metalwork Installation Limited2021
All installation companies (insulation, lifts, shutters and similar) in Ruislip · All trades in Ruislip · Installers across the UK
Frequently asked questions
When are Blair Builders Ltd's accounts due?
Blair Builders Ltd's next accounts are due at Companies House by 17 December 2027 (in 431 days), covering the period to 31 March 2027.
When is Blair Builders Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 16 March 2027, due by 16 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Blair Builders Ltd still trading?
Blair Builders 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 Blair Builders Ltd do?
Blair Builders Ltd is registered under Other construction installation (SIC 43290).
How old is Blair Builders Ltd?
Blair Builders Ltd was incorporated on 17 March 2026, less than a year ago.
What is the penalty if Blair Builders 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 Blair Builders 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.