- Companies
- Plumbers and heating engineers
- Derby
- Smart Heat Systems Ltd
Smart Heat Systems Ltd
- Company number
- 17159172
- Incorporated
- 15 Apr 2026
- Registered office
- 51 Reeves Road, Derby, DE23 8JF
- Nature of business
- Plumbing, heat and air-conditioning installation
Smart Heat Systems Ltd is a newly incorporated private limited company registered in Derby, company number 17159172, one of 176 plumbing and heating companies in Derby. Its next accounts are due at Companies House on 15 January 2028, and its first CT600 is due at HMRC on 14 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.
Is this your company?
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Where Smart Heat Systems Ltd is registered
The registered office is in Derby (DE23), in the Derby local authority area, East Midlands. Show DE23 8JF on a map.
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- MNK Group LtdMotor traders
- Rising Star Trading Derby LimitedMotor traders
- Tap Stop Civils & Plumbing LimitedPlumbers and heating engineers
- German Salvage & Repairs LtdMechanics and garages
- RDX Design LimitedBuilders
What happens if Smart Heat Systems 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 15 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 16 Jan 2028 to 15 Feb 2028 | £150 |
| 1 to 3 months late | 16 Feb 2028 to 15 Apr 2028 | £375 |
| 3 to 6 months late | 16 Apr 2028 to 15 Jul 2028 | £750 |
| More than 6 months late | From 16 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
- 17159172
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 April 2026
- Registered office
- 51 Reeves Road, Derby, DE23 8JF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Derby
Other active plumbing and heating companies registered in Derby.
- Smiths International Plumbing & Heating Ltd.1995
- Speedy Heat (Midlands) Ltd2025
- Speedy Underfloor Heating Ltd2026
- Standard Plumbing Heating Solutions Ltd2024
- Steve Trower Plumbing & Heating Limited2003
- STH Mechanical Ltd2019
- Streamline Plumbing & Heating Ltd2026
- Tap Stop Civils & Plumbing Limited2026
All plumbing and heating companies in Derby · All trades in Derby · Plumbers and heating engineers across the UK
Frequently asked questions
When are Smart Heat Systems Ltd's accounts due?
Smart Heat Systems Ltd's next accounts are due at Companies House by 15 January 2028 (in 459 days), covering the period to 30 April 2027.
When is Smart Heat Systems 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 14 April 2027, due by 14 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 Smart Heat Systems Ltd still trading?
Smart Heat Systems 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 Smart Heat Systems Ltd do?
Smart Heat Systems Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Smart Heat Systems Ltd?
Smart Heat Systems Ltd was incorporated on 15 April 2026, less than a year ago.
What is the penalty if Smart Heat Systems 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 Smart Heat Systems 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.