- Companies
- Installers
- Dronfield
- 7 Hills Mechanical Limited
7 Hills Mechanical Limited
- Company number
- 17138369
- Incorporated
- 6 Apr 2026
- Registered office
- 24 Highgate Drive, Dronfield, S18 1UD
- Nature of business
- Other construction installation
7 Hills Mechanical Limited is a newly incorporated private limited company registered in Dronfield, company number 17138369, one of 6 installation companies (insulation, lifts, shutters and similar) in Dronfield. Its next accounts are due at Companies House on 6 January 2028, and its first CT600 is due at HMRC on 5 April 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 7 Hills Mechanical Limited is registered
The registered office is in Dronfield (S18), in the North East Derbyshire local authority area, East Midlands. Show S18 1UD on a map.
Other trade companies in S18
- D D Cutts LtdMotor traders
- Parkers Property Maintenance LimitedLandscapers and gardeners
- SRH Agri LtdMachinery repair and installation
- Alexander&Cutts LtdMotor traders
- L Morgan Construction LimitedInstallers
- TDZ Electrical Services LtdElectricians
- Jeb Plastering Company LtdPlasterers
- R & R Joinery & Building LtdBuilders
What happens if 7 Hills Mechanical 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 6 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Jan 2028 to 6 Feb 2028 | £150 |
| 1 to 3 months late | 7 Feb 2028 to 6 Apr 2028 | £375 |
| 3 to 6 months late | 7 Apr 2028 to 6 Jul 2028 | £750 |
| More than 6 months late | From 7 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17138369
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 April 2026
- Registered office
- 24 Highgate Drive, Dronfield, S18 1UD
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 April (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 Dronfield
Other active installation companies (insulation, lifts, shutters and similar) registered in Dronfield.
- Era Joinery & Construction Ltd2025
- Illingworth Mechanical Limited2006
- L Morgan Construction Limited2026
- Project One Kitchens Ltd2008
- R McNeil Contracts Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Dronfield · All trades in Dronfield · Installers across the UK
Frequently asked questions
When are 7 Hills Mechanical Limited's accounts due?
7 Hills Mechanical Limited's next accounts are due at Companies House by 6 January 2028 (in 450 days), covering the period to 30 April 2027.
When is 7 Hills Mechanical 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 5 April 2027, due by 5 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is 7 Hills Mechanical Limited still trading?
7 Hills Mechanical 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 7 Hills Mechanical Limited do?
7 Hills Mechanical Limited is registered under Other construction installation (SIC 43290).
How old is 7 Hills Mechanical Limited?
7 Hills Mechanical Limited was incorporated on 6 April 2026, less than a year ago.
What is the penalty if 7 Hills Mechanical 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 7 Hills Mechanical 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.