- Companies
- Installers
- Ilkley
- Helmstone Ai Ltd
Helmstone Ai Ltd
- Company number
- 16639487
- Incorporated
- 9 Aug 20251 year trading
- Registered office
- 13A South Hawksworth Street, Ilkley, LS29 9DX
- Nature of business
- Other construction installation
Helmstone Ai Ltd is a 1-year-old private limited company registered in Ilkley, company number 16639487, one of 9 installation companies (insulation, lifts, shutters and similar) in Ilkley. Its next accounts are due at Companies House on 9 May 2027, and its first CT600 is due at HMRC on 8 August 2027.
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 Helmstone Ai Ltd is registered
The registered office is in Ilkley (LS29), in the Bradford local authority area, Yorkshire and The Humber. Show LS29 9DX on a map.
Other trade companies in LS29
- Nextgen Pest Control LtdCleaning companies
- BHG Holdings 005002 LimitedProperty developers
- West Chevin Electrical LtdElectricians
- Milwood Property LimitedProperty developers
- TB Landscaping LtdLandscapers and gardeners
- Zeus Ev LtdElectricians
- Brabiner Construction LtdBuilders
- Orva Geospatial LtdSpecialist contractors
What happens if Helmstone Ai 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 9 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 10 May 2027 to 9 Jun 2027 | £150 |
| 1 to 3 months late | 10 Jun 2027 to 9 Aug 2027 | £375 |
| 3 to 6 months late | 10 Aug 2027 to 9 Nov 2027 | £750 |
| More than 6 months late | From 10 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16639487
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 August 2025 (1 year ago)
- Registered office
- 13A South Hawksworth Street, Ilkley, LS29 9DX
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Previous names
- Ecodawn Renewables Limited (until 7 Apr 2026)
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 Ilkley
Other active installation companies (insulation, lifts, shutters and similar) registered in Ilkley.
- MJH Joinery & Fencing Ltd2026
- Natural Solutions Yorkshire Ltd2024
- Neu Pave Ltd2024
- Outdoor Heritage Kitchens Limited2024
- Wharfedale Fencing Limited2017
- Wharfedale Trees Limited2017
- Condensation Control Ltd2011
- D C Roberts Ltd2022
All installation companies (insulation, lifts, shutters and similar) in Ilkley · All trades in Ilkley · Installers across the UK
Frequently asked questions
When are Helmstone Ai Ltd's accounts due?
Helmstone Ai Ltd's next accounts are due at Companies House by 9 May 2027 (in 209 days), covering the period to 31 August 2026.
When is Helmstone Ai 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 8 August 2026, due by 8 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Helmstone Ai Ltd still trading?
Helmstone Ai Ltd 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 Helmstone Ai Ltd do?
Helmstone Ai Ltd is registered under Other construction installation (SIC 43290).
How old is Helmstone Ai Ltd?
Helmstone Ai Ltd was incorporated on 9 August 2025, 1 year ago.
What is the penalty if Helmstone Ai 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 Helmstone Ai Ltd 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.