- Companies
- Plumbers and heating engineers
- Welwyn
- Space Heating Limited
Space Heating Limited
- Company number
- 06445497
- Incorporated
- 5 Dec 200718 years trading
- Registered office
- 41 the Avenue, Welwyn, Hertfordshire, AL6 0PW
- Nature of business
- Plumbing, heat and air-conditioning installation
Space Heating Limited is a 18-year-old private limited company registered in Welwyn, company number 06445497, one of 11 plumbing and heating companies in Welwyn. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
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 £159K (-24.3%) on the year before, to £494K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £493K against £71K owed within a year: 6.9 times cover.
- 13 employees on average, up from 12 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 Dec 2025 | £494K | £393K | £493K | £71K | 13 |
| 31 Dec 2024 | £652K | £602K | £752K | £195K | 12 |
| 31 Dec 2023 | £589K | £432K | £602K | £87K | 13 |
| 31 Dec 2022 | £543K | £472K | £641K | £139K | 13 |
| 31 Dec 2021 | £454K | £439K | £540K | £108K | 13 |
| 31 Dec 2020 | £366K | £379K | £464K | £112K | 13 |
| 31 Dec 2019 | £173K | £209K | £277K | £142K | 12 |
| 31 Dec 2018 | £113K | £130K | £186K | £123K | 10 |
| 31 Dec 2017 | £117K | £113K | £177K | £99K | 8 |
| 31 Dec 2016 | £29K | £66K | £109K | £102K | 6 |
Where Space Heating Limited is registered
The registered office is in Welwyn (AL6), in the Welwyn Hatfield local authority area, East of England. Show AL6 0PW on a map.
Other trade companies in AL6
- Herts Climate Solutions LtdPlumbers and heating engineers
- Cosmorepairs LtdRepair services
- Little Enterprise Group LtdProperty developers
- Sehiti Plumbing and Heating LtdPlumbers and heating engineers
- LMC Highway Design LtdCivil engineering
- Fox Huhu Trading LimitedBuilders
- Enclosure Zoolutions LtdProperty developers
- G.I. Installation Services LimitedBuilders
What happens if Space Heating 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
- 06445497
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 December 2007 (18 years ago)
- Registered office
- 41 the Avenue, Welwyn, Hertfordshire, AL6 0PW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 20 November 2025
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 Welwyn
Other active plumbing and heating companies registered in Welwyn.
- Target Drainage & Plumbing Ltd2022
- Warner Bros Plumbing and Heating Ltd2015
- 360 Heating Ltd2014
- Aquaspark Contractors Limited2015
- C A Warner Ltd2015
- G & A Plumbing and Heating Engineers Limited2000
- Hertfordshire Premier Plumbing and Heating Ltd2018
- Herts Climate Solutions Ltd2026
All plumbing and heating companies in Welwyn · All trades in Welwyn · Plumbers and heating engineers across the UK
Frequently asked questions
When are Space Heating Limited's accounts due?
Space Heating Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Space Heating 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 31 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Space Heating Limited still trading?
Space Heating 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 Space Heating Limited do?
Space Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Space Heating Limited?
Space Heating Limited was incorporated on 5 December 2007, 18 years ago.
What is the penalty if Space Heating 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 Space Heating 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.