- Companies
- Plumbers and heating engineers
- Stevenage
- Heatstream Limited
Heatstream Limited
- Company number
- 09415652
- Incorporated
- 2 Feb 201511 years trading
- Registered office
- Building 18, Gateway 1000 Arlington Business Park, Whittle Way, Stevenage, SG1 2FP
- Nature of business
- Plumbing, heat and air-conditioning installation
Heatstream Limited is a 11-year-old private limited company registered in Stevenage, company number 09415652, one of 95 plumbing and heating companies in Stevenage. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 down £190 (-4.9%) on the year before, to £3,718.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £5,391 against £2,525 owed within a year: 2.1 times cover.
- 3 employees on average, up from 2 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | £3,718 | £120 | £5,391 | £2,525 | 3 |
| 29 Feb 2024 | £3,908 | £863 | £8,721 | £5,816 | 2 |
| 28 Feb 2023 | £3,168 | £248 | £2,559 | £886 | 2 |
| 28 Feb 2022 | -£5,700 | £784 | £14K | £21K | 2 |
| 28 Feb 2021 | £13K | £4,141 | £19K | 2 | |
| 28 Feb 2020 | £9,916 | £14K | £26K | 2 | |
| 28 Feb 2019 | £450 | £14K | £15K | ||
| 28 Feb 2018 | £2,252 | £18K | £20K | ||
| 28 Feb 2017 | £7,233 | £31K | £25K | ||
| 28 Feb 2016 | £103 | £229 | £2,597 | £3,076 |
Where Heatstream Limited is registered
The registered office is in Stevenage (SG1), in the Stevenage local authority area, East of England. Show SG1 2FP on a map.
Other trade companies in SG1
- Masterplumbing&Heating LtdPlumbers and heating engineers
- Ohiggins Property Solutions LtdProperty developers
- Bird Detailing LtdCleaning companies
- Tedted Engineering LtdMechanics and garages
- DSS Facilities LtdFacilities management
- Macala Engineering LimitedSpecialist contractors
- Regency Detailing LtdMechanics and garages
- Ashtons Property Group LtdProperty developers
Also registered at this address
12 other companies use the same registered office as Heatstream Limited.
- Drop Kerb Expert LimitedSpecialist contractors
- E Coulson Carpentry & Building LtdFinishing trades
- Greenman Cambridge LimitedLandscapers and gardeners
- Hudson Ash LimitedFinishing trades
- K Skinner Film & TV Rigging LimitedSpecialist contractors
- Lothbury James LimitedPlumbers and heating engineers
- Mle Construction LimitedBuilders
- My-Gas Heating Services LtdPlumbers and heating engineers
- Phoenix Electrical Nationwide LimitedElectricians
- Quality Decorating Company LimitedPainters and decorators
- Steadfast Construction and Engineering LtdCivil engineering
- Trinity Electrical Services (London) LtdElectricians
What happens if Heatstream 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 09415652
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2015 (11 years ago)
- Registered office
- Building 18, Gateway 1000 Arlington Business Park, Whittle Way, Stevenage, SG1 2FP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 2 February 2026
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 Stevenage
Other active plumbing and heating companies registered in Stevenage.
- Heritage Maintenance Services Ltd2026
- Hicksonscott Plumbing Services Limited2010
- Homelea Maintenance Limited2009
- Hoopers Plumbing and Heating Ltd2024
- Ig Plum Ltd2016
- Ignite Installations Ltd2011
- J & D Plumbing & Heating Limited2025
- J & T Plumbing and Heating Ltd2023
All plumbing and heating companies in Stevenage · All trades in Stevenage · Plumbers and heating engineers across the UK
Frequently asked questions
When are Heatstream Limited's accounts due?
Heatstream Limited's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Heatstream Limited's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Heatstream Limited still trading?
Heatstream 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 Heatstream Limited do?
Heatstream Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Heatstream Limited?
Heatstream Limited was incorporated on 2 February 2015, 11 years ago.
What is the penalty if Heatstream 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 Heatstream 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.