- Companies
- Installers
- Ruislip
- Complete Build & Maintain Ltd
Complete Build & Maintain Ltd
- Company number
- 16100503
- Incorporated
- 25 Nov 20241 year trading
- Registered office
- 2ND Floor College House, 17 King Edwards Road,, Ruislip, London,, HA4 7AE
- Nature of business
- Other construction installation; Joinery installation; Other building completion and finishing; Roofing activities
Complete Build & Maintain Ltd is a 1-year-old private limited company registered in Ruislip, company number 16100503, one of 56 installation companies (insulation, lifts, shutters and similar) in Ruislip. Companies House shows its accounts as overdue: they were due on 25 August 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 Complete Build & Maintain Ltd is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 7AE 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
Shared registered office
264 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Complete Build & Maintain Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Aug 2026 to 25 Sep 2026 | £150 |
| 1 to 3 months late | 26 Sep 2026 to 25 Nov 2026 | £375 |
| 3 to 6 months late | 26 Nov 2026 to 25 Feb 2027 | £750 |
| More than 6 months late | From 26 Feb 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16100503
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 2024 (1 year ago)
- Registered office
- 2ND Floor College House, 17 King Edwards Road,, Ruislip, London,, HA4 7AE
- Nature of business
- Other construction installation (SIC 43290)
Joinery installation (SIC 43320)
Other building completion and finishing (SIC 43390)
Roofing activities (SIC 43910) - Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 24 November 2025
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.
- Defendentry Security Solutions Ltd2026
- Eastside Building Limited2025
- Ecolo Synergy Hampstead Ltd2023
- Ephexis Ltd2025
- Essex Metalwork Installation Limited2021
- F1R382 One Ltd2022
- Fix IT Building Service Ltd2025
- Flitwick Construction and Maintenance Limited2015
All installation companies (insulation, lifts, shutters and similar) in Ruislip · All trades in Ruislip · Installers across the UK
Frequently asked questions
When are Complete Build & Maintain Ltd's accounts due?
Complete Build & Maintain Ltd's accounts were due at Companies House on 25 August 2026 and the register shows them as overdue.
When is Complete Build & Maintain 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 24 November 2025, due by 24 November 2026, and one for the period to 30 November 2025, due by 30 November 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Complete Build & Maintain Ltd still trading?
Complete Build & Maintain Ltd is listed as active on the Companies House register (checked 13 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 Complete Build & Maintain Ltd do?
Complete Build & Maintain Ltd is registered under Other construction installation (SIC 43290); Joinery installation (SIC 43320); Other building completion and finishing (SIC 43390); Roofing activities (SIC 43910).
How old is Complete Build & Maintain Ltd?
Complete Build & Maintain Ltd was incorporated on 25 November 2024, 1 year ago.
What is the penalty if Complete Build & Maintain 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 Complete Build & Maintain Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.