- Companies
- Plumbers and heating engineers
- Bristol
- Boxed Energy Limited
Boxed Energy Limited
- Company number
- 08333841
- Incorporated
- 17 Dec 201213 years trading
- Registered office
- Office 6, Bristol Science Park Dirac Crescent, Emersons Green, Bristol, BS16 7FR
- Nature of business
- Plumbing, heat and air-conditioning installation
Boxed Energy Limited is a 13-year-old private limited company registered in Bristol, company number 08333841, one of 432 plumbing and heating companies in Bristol. 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 £210K (+152.3%) on the year before, to £72K.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £1.6M against £1.5M owed within a year: 1.0 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £72K | £393K | £1.6M | £1.5M | 4 |
| 31 Mar 2024 | -£138K | £66K | £87K | £225K | 4 |
| 31 Mar 2023 | -£129K | £4,176 | £222K | £250K | 0 |
| 31 Mar 2022 | -£48K | £87K | £138K | £121K | 0 |
| 31 Mar 2021 | -£50K | £8,429 | £1.1M | £1.1M | 0 |
| 30 Mar 2020 | £17K | £55K | £979K | £904K | 4 |
| 30 Mar 2019 | -£69K | £1,646 | £324K | £304K | 4 |
| 31 Mar 2018 | £1,282 | £10K | £205K | £118K | 4 |
Where Boxed Energy Limited is registered
The registered office is in Bristol (BS16), in the South Gloucestershire local authority area, South West. Show BS16 7FR on a map.
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- Sarayhan68 LtdProperty developers
- THK Estates LtdProperty developers
- Crownstone Property Partners LtdProperty developers
- Velmora Support LtdCleaning companies
- Parkstone Roofing & Building LtdRoofers
- Electrical Services South West LimitedElectricians
- Roots to Ridges Landscapes and Build LimitedLandscapers and gardeners
Also registered at this address
2 other companies use the same registered office as Boxed Energy Limited.
- Boxed Light Services LimitedElectricians
- FCS Trading LimitedPlumbers and heating engineers
What happens if Boxed Energy 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
- 08333841
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2012 (13 years ago)
- Registered office
- Office 6, Bristol Science Park Dirac Crescent, Emersons Green, Bristol, BS16 7FR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 22 November 2025
- Charges (mortgages)
- 2 outstanding of 3 registered
- Previous names
- Containerised Energy Limited (until 9 May 2013)
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 Bristol
Other active plumbing and heating companies registered in Bristol.
- Bright Plumbing and Heating Limited2025
- Bristol & Avon Plumbing & Heating Ltd2025
- Bristol & West Security Limited2014
- Bristol Air Conditioning Solutions Limited2025
- Bristol Air Source Company Ltd2025
- Bristol and Bath Air Conditioning Limited2025
- Bristol and Southwest Plumbing and Heating Ltd2018
- Bristol Central Heating Ltd2018
All plumbing and heating companies in Bristol · All trades in Bristol · Plumbers and heating engineers across the UK
Frequently asked questions
When are Boxed Energy Limited's accounts due?
Boxed Energy 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 Boxed Energy 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 Boxed Energy Limited still trading?
Boxed Energy 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 Boxed Energy Limited do?
Boxed Energy Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Boxed Energy Limited?
Boxed Energy Limited was incorporated on 17 December 2012, 13 years ago.
What is the penalty if Boxed Energy 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 Boxed Energy 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.