- Companies
- Plumbers and heating engineers
- Bexley
- Smart Flow Heating Limited
Smart Flow Heating Limited
- Company number
- 15306339
- Incorporated
- 23 Nov 20232 years trading
- Registered office
- 66 Bexley High Street, Bexley, Kent, DA5 1AH
- Nature of business
- Plumbing, heat and air-conditioning installation
Smart Flow Heating Limited is a 2-year-old private limited company registered in Bexley, company number 15306339, one of 81 plumbing and heating companies in Bexley. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £7,533 (-222%) on the year before, to -£11K.
- Current assets of £169 against £13K owed within a year: 0.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | -£11K | £169 | £169 | £13K | 0 |
| 30 Nov 2024 | -£3,393 | £2,744 | £5,310 | £11K | 1 |
Where Smart Flow Heating Limited is registered
The registered office is in Bexley (DA5), in the Bexley local authority area, London. Show DA5 1AH on a map.
Other trade companies in DA5
- Homeheat+ LtdPlumbers and heating engineers
- Apex South West Construction LtdBuilders
- E & F Surfacing & Construction LtdSpecialist contractors
- T&R Cleaning Services LtdCleaning companies
- Paul C Jordan LimitedBuilders
- SX Plumbing LimitedPlumbers and heating engineers
- Rennell Interiors LtdJoiners and carpenters
- Ravenford Planning LtdProperty developers
Shared registered office
32 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 Smart Flow 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 15306339
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 November 2023 (2 years ago)
- Registered office
- 66 Bexley High Street, Bexley, Kent, DA5 1AH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 22 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 Bexley
Other active plumbing and heating companies registered in Bexley.
- Smart Plumbing Solutions Limited2014
- SX Plumbing Limited2026
- T & N Heating Services Limited2015
- Tartan Plumbing Ltd2026
- TD Heating Services Limited2019
- TM Plumbing & Heating Limited2025
- Torr Cooling Solutions Limited2022
- Total Engineering & Maintenance Limited2025
All plumbing and heating companies in Bexley · All trades in Bexley · Plumbers and heating engineers across the UK
Frequently asked questions
When are Smart Flow Heating Limited's accounts due?
Smart Flow Heating Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Smart Flow Heating Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Smart Flow Heating Limited still trading?
Smart Flow 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 Smart Flow Heating Limited do?
Smart Flow Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Smart Flow Heating Limited?
Smart Flow Heating Limited was incorporated on 23 November 2023, 2 years ago.
What is the penalty if Smart Flow 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 Smart Flow 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.