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Concept Heating Systems Limited

ActiveUnaudited abridged accountsPlumbers and heating engineersManchester
Company number
03788520
Incorporated
14 Jun 199927 years trading
Registered office
Unit 38A Eton Business Park, Eton Hill Road, Manchester, M26 2ZS
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
170 days
31 Mar 2027
Net assets
£912K▲
+41.4% on the year before
Cash at bank
£696K▼
At 30 Jun 2025
Employees
49
Average during the year
From the Companies House register, 1 Oct 2026

Concept Heating Systems Limited is a 27-year-old private limited company registered in Manchester, company number 03788520, one of 361 plumbing and heating companies in Manchester. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Mar 2027
in 170 days
For the period to 30 Jun 2026
CT600 due
30 Jun 2027
in 261 days
Period 1 Jul 2025 to 30 Jun 2026
Corporation tax payment
1 Apr 2027
in 171 days
9 months and 1 day after the period end
Confirmation statement
28 Jun 2027
in 259 days
Last made up to 14 Jun 2026

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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 £267K (+41.4%) on the year before, to £912K.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • Current assets of £2.5M against £1.8M owed within a year: 1.4 times cover.
  • 49 employees on average, up from 46 the year before.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K30 June 2016: net assets £790K£790K201630 June 2017: net assets £757K£757K201730 June 2018: net assets £794K£794K201830 June 2019: net assets £696K£696K201930 June 2020: net assets £707K£707K202030 June 2021: net assets £734K£734K202130 June 2022: net assets £874K£874K202230 June 2023: net assets £914K£914K202330 June 2024: net assets £645K£645K202430 June 2025: net assets £912K£912K2025
Net assets at each year end, 2016 to 2025£0£500K30 June 2016: net assets £790K£790K'1630 June 2017: net assets £757K£757K'1730 June 2018: net assets £794K£794K'1830 June 2019: net assets £696K£696K'1930 June 2020: net assets £707K£707K'2030 June 2021: net assets £734K£734K'2130 June 2022: net assets £874K£874K'2230 June 2023: net assets £914K£914K'2330 June 2024: net assets £645K£645K'2430 June 2025: net assets £912K£912K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Jun 2025£912K£696K£2.5M£1.8M49
30 Jun 2024£645K£741K£2.5M£2.1M46
30 Jun 2023£914K£1.9M£3.5M£2.7M42
30 Jun 2022£874K£589K£2.2M£1.5M38
30 Jun 2021£734K£505K£1.6M£1M25
30 Jun 2020£707K£618K£1.2M£631K22
30 Jun 2019£696K£375K£983K£415K
30 Jun 2018£794K£679K£1.3M£627K
30 Jun 2017£757K£476K£1.5M£901K
30 Jun 2016£790K£482K£1.2M£582K

Public contracts won

Concept Heating Systems Limited has 20 public sector contract awards on record; the ones with their own published value total £29M, from 2016 to 2026. Source: Contracts Finder and Find a Tender award notices. For 14 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 11 of these were matched by the company's exact name because the notice gave no company number.

Awards by year

20161
20171
20181
20192
20201
20214
20221
20232
20243
20253
20261

Main buyers

  • Procure Plus Holdings Limited6 awards
  • EN Procure Ltd4 awards
  • Together Housing Association Limited2 awards
  • Greater Manchester Combined Authority1 award
  • Hull City Council1 award
BuyerContractValueAwarded
Together Housing Association LimitedProvision of the Installation of Air Source Heat Pumps and Insulation Measures Lancashire£23M31 Jul 2026
Together Housing Association LimitedProspect House - replacement of heating system4 Nov 2025
Procure Plus Holdings LimitedFramework for the Installation of Low and Zero Carbon TechnologiesCeiling, not shown4 Nov 2025
Greater Manchester Combined AuthorityGMCA 911 Net Zero: Housing Retrofit Framework AgreementCeiling, not shown8 Aug 2025
Procure Plus Holdings LimitedFramework Agreement for Installation and Repair (North East, Yorkshire and Humberside)Ceiling, not shown15 Oct 2024
Hull City CouncilGeneral and Specialist Building Works Including: Ventilation, Aids & Adaptations, Extensions and Specialist Works for High-Risk Buildings (HRBs).Ceiling, not shown25 Feb 2024
EN Procure LtdEN:Procure - Framework for Installation, Servicing, Maintenance and Repair Works (GEN4)Ceiling, not shown20 Feb 2024
Wakefield and District HousingUnderfloor Insulation£4M23 Jul 2023
Procure Plus Holdings LimitedFramework Agreement for Installation and RepairCeiling, not shown21 Jul 2023
City of York CouncilContractor led turnkey PAS 2035 retrofit energy efficiency works19 Jun 2022

Showing the 10 most recent of 20.

Where Concept Heating Systems Limited is registered

Concept Heating Systems Limited's registered office on a map of the UK

The registered office is in Manchester (M26), in the Bury local authority area, North West. Show M26 2ZS on a map.

Other trade companies in M26

What happens if Concept Heating Systems 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 March 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Apr 2027 to 30 Apr 2027£150
1 to 3 months late1 May 2027 to 30 Jun 2027£375
3 to 6 months late1 Jul 2027 to 30 Sep 2027£750
More than 6 months lateFrom 1 Oct 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Jul 2027£200
3 months late30 Sep 2027another £200
6 months late30 Dec 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Jun 2028another 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
03788520
Status
Active
Company type
Private limited company
Incorporated
14 June 1999 (27 years ago)
Registered office
Unit 38A Eton Business Park, Eton Hill Road, Manchester, M26 2ZS
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
30 June (accounting reference date)
Accounts type
Unaudited abridged
Last accounts made up to
30 June 2025
Last confirmation statement
14 June 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 Manchester

Other active plumbing and heating companies registered in Manchester.

All plumbing and heating companies in Manchester · All trades in Manchester · Plumbers and heating engineers across the UK

Frequently asked questions

When are Concept Heating Systems Limited's accounts due?

Concept Heating Systems Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.

When is Concept Heating Systems Limited's CT600 due?

The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.

Is Concept Heating Systems Limited still trading?

Concept Heating Systems 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 Concept Heating Systems Limited do?

Concept Heating Systems Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Concept Heating Systems Limited?

Concept Heating Systems Limited was incorporated on 14 June 1999, 27 years ago.

Has Concept Heating Systems Limited won public sector contracts?

Yes. Concept Heating Systems Limited has 20 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £29M), most recently from Together Housing Association Limited.

What is the penalty if Concept Heating Systems 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 Concept Heating Systems Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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