- Companies
- Plumbers and heating engineers
- Peterborough
- Smartheat Plumbing and Heating Limited
Smartheat Plumbing and Heating Limited
- Company number
- 06654140
- Incorporated
- 23 Jul 200818 years trading
- Registered office
- 66 Werrington Business Centre, Papyrus Road, Werrington, Peterborough, Cambridgeshire, PE4 5BH
- Nature of business
- Plumbing, heat and air-conditioning installation
Smartheat Plumbing and Heating Limited is a 18-year-old private limited company registered in Peterborough, company number 06654140, one of 123 plumbing and heating companies in Peterborough. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Smartheat Plumbing and Heating LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £35K (+50.7%) on the year before, to £105K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £300K against £281K owed within a year: 1.1 times cover.
- 49 employees on average, down from 59 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £105K | £160K | £300K | £281K | 49 |
| 30 Sep 2024 | £70K | £138K | £272K | £285K | 59 |
| 30 Sep 2023 | £165K | £178K | £349K | £255K | 18 |
| 30 Sep 2022 | £155K | £119K | £262K | £182K | 15 |
| 30 Sep 2021 | £229K | £175K | £327K | £174K | 17 |
| 30 Sep 2020 | £288K | £124K | £369K | £214K | 15 |
| 30 Sep 2019 | £278K | £18K | £240K | £121K | 15 |
| 30 Sep 2018 | £415K | £114K | £364K | £129K | 13 |
| 30 Sep 2017 | £457K | £249K | £437K | £136K | |
| 30 Sep 2016 | £395K | £204K | £395K | £159K |
Where Smartheat Plumbing and Heating Limited is registered
The registered office is in Peterborough (PE4), in the Peterborough local authority area, East of England. Show PE4 5BH on a map.
Other trade companies in PE4
- Nene Landscaping LimitedLandscapers and gardeners
- PSR Contractors LimitedBuilders
- Dsquared Cleaning Company LtdCleaning companies
- Lenzi Home Improvements LtdPainters and decorators
- Ijarah LtdMotor traders
- Jesn Transport and Car Services LtdMotor traders
- Sophia Cleaning LtdCleaning companies
- D-Garage Mobile Pro LtdMechanics and garages
What happens if Smartheat Plumbing and 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 06654140
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 July 2008 (18 years ago)
- Registered office
- 66 Werrington Business Centre, Papyrus Road, Werrington, Peterborough, Cambridgeshire, PE4 5BH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 27 July 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Peterborough
Other active plumbing and heating companies registered in Peterborough.
- South Holland Heating and Cooling Services Limited2026
- Stamford Bespoke Bathrooms Ltd2025
- Stimpson Plumbing Services Limited2010
- Stonegate Gas Ltd2022
- TF Heating & Plumbing Ltd2018
- The Gas Fire Man Ltd2019
- Thywuo Fix IT Ltd2025
- Togair Ltd2017
All plumbing and heating companies in Peterborough · All trades in Peterborough · Plumbers and heating engineers across the UK
Frequently asked questions
When are Smartheat Plumbing and Heating Limited's accounts due?
Smartheat Plumbing and Heating Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Smartheat Plumbing and Heating Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Smartheat Plumbing and Heating Limited still trading?
Smartheat Plumbing and 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 Smartheat Plumbing and Heating Limited do?
Smartheat Plumbing and Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Smartheat Plumbing and Heating Limited?
Smartheat Plumbing and Heating Limited was incorporated on 23 July 2008, 18 years ago.
What is the penalty if Smartheat Plumbing and 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 Smartheat Plumbing and 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.