- Companies
- Electricians
- Calne
- Ultra-Warm Limited
Ultra-Warm Limited
- Company number
- 00978715
- Incorporated
- 4 May 197056 years trading
- Registered office
- 1 Market Hill, Calne, Wiltshire, SN11 0BT
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Other construction installation; Wholesale of hardware, plumbing and heating equipment and supplies
Ultra-Warm Limited is a 56-year-old private limited company registered in Calne, company number 00978715, one of 16 electrical contractors in Calne. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £233K (+435.9%) on the year before, to £179K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £216K against £113K owed within a year: 1.9 times cover.
- 15 employees on average, down from 20 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £179K | £113K | £216K | £113K | 15 |
| 31 Mar 2024 | -£53K | £48K | £169K | £88K | 20 |
| 30 Jun 2023 | £130K | £18K | £576K | £459K | 28 |
| 30 Jun 2022 | £236K | £162K | £844K | £629K | 29 |
| 30 Jun 2021 | £365K | £284K | £930K | £591K | 27 |
| 30 Jun 2020 | £401K | £300K | £900K | £525K | 29 |
| 30 Jun 2019 | £485K | £297K | £1M | £592K | 30 |
| 30 Jun 2018 | £477K | £282K | £960K | £524K | 33 |
| 30 Jun 2017 | £476K | £324K | £974K | £550K | 39 |
| 30 Jun 2016 | £371K | £262K | £941K | £620K |
Who runs and owns Ultra-Warm Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| R*** P*** | Director | Nov 2023 |
5 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| A*** L*** | Secretary | Jun 2011 | |
| A*** L*** | Director | Jun 2011 | |
| L*** L*** | Director | Nov 2023 | |
| M*** S*** | Director | Nov 2023 | |
| R*** S*** | Director | Dec 2003 | Nov 2023 |
Person with significant control
Charges (secured borrowing)
All 2 registered charges have been satisfied. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| Lloyds TSB Bank PLC | Satisfied Nov 2023 | Mar 2006 |
| Lloyds Bank PLC | Satisfied Nov 2023 | Nov 1987 |
Where Ultra-Warm Limited is registered
The registered office is in Calne (SN11), in the Wiltshire local authority area, South West. Show SN11 0BT on a map.
Other trade companies in SN11
- Ionexis LimitedMachinery repair and installation
- B&L Mobile Car Repairs LtdMechanics and garages
- DCH Services (Wilts) LtdPlumbers and heating engineers
- Ezzyfix Auto Solutions LtdMotor traders
- Set Stone Tiling LtdBuilders
- C.D Substructures LtdBuilders
- Ever So Good Home Improvements LtdSpecialist contractors
- Hardy's Smart Repairs LtdMechanics and garages
Shared registered office
50 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 Ultra-Warm 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 00978715
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 May 1970 (56 years ago)
- Registered office
- 1 Market Hill, Calne, Wiltshire, SN11 0BT
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Wholesale of hardware, plumbing and heating equipment and supplies (SIC 46740) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 December 2025
- Charges (mortgages)
- 0 outstanding of 2 registered
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Calne
Other active electrical contractors registered in Calne.
- Wilts Electrical Contracting Limited2004
- Abme Electrical Limited2011
- Ahead Electrical Limited2025
- BKR Property Maintenance Ltd2026
- Bolt Electrical Contractors Limited2012
- C Brittain Electrical Services Ltd2018
- C J Steel Electrical Services Limited2008
- Delta Electrical Contracting Limited2007
All electrical contractors in Calne · All trades in Calne · Electricians across the UK
Frequently asked questions
When are Ultra-Warm Limited's accounts due?
Ultra-Warm Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Ultra-Warm Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Ultra-Warm Limited still trading?
Ultra-Warm 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 Ultra-Warm Limited do?
Ultra-Warm Limited is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Wholesale of hardware, plumbing and heating equipment and supplies (SIC 46740).
How old is Ultra-Warm Limited?
Ultra-Warm Limited was incorporated on 4 May 1970, 56 years ago.
Who runs Ultra-Warm Limited?
Ultra-Warm Limited has 1 active director, the longest-serving appointed in Nov 2023. Their names and service addresses are on the Companies House register.
Who owns Ultra-Warm Limited?
One person or company has significant control of Ultra-Warm Limited: Ultra-Warm Holdings Limited (owns 75% or more of the shares).
What is the penalty if Ultra-Warm 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 Ultra-Warm 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.