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  4. Sun Realm Heating Co. Limited

Sun Realm Heating Co. Limited

ActiveTotal exemption (full) accountsPlumbers and heating engineersLuton
Company number
01202277
Incorporated
3 Mar 197551 years trading
Registered office
28 Camford Way, Luton, Bedfordshire, LU3 3AN
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
352 days
30 Sep 2027
Net assets
£3.1M▼
-4.8% on the year before
Cash at bank
£2.5M▼
At 31 Dec 2025
Employees
38
Average during the year
From the Companies House register, 1 Oct 2026

Sun Realm Heating Co. Limited is a 51-year-old private limited company registered in Luton, company number 01202277, one of 158 plumbing and heating companies in Luton. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

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

Accounts due
30 Sep 2027
in 352 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 444 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 353 days
9 months and 1 day after the period end
Confirmation statement
19 Aug 2027
in 310 days
Last made up to 5 Aug 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 down £155K (-4.8%) on the year before, to £3.1M.
  • Net assets rose in 5 of 9 year-on-year comparisons on record.
  • Current assets of £3.6M against £1.1M owed within a year: 3.2 times cover.
  • 38 employees on average, down from 41 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£2M31 December 2016: net assets £3.2M£3.2M201631 December 2017: net assets £3.4M£3.4M201731 December 2018: net assets £3.3M£3.3M201831 December 2019: net assets £3.9M£3.9M201931 December 2020: net assets £3M£3M202031 December 2021: net assets £3.1M£3.1M202131 December 2022: net assets £3.1M£3.1M202231 December 2023: net assets £3.1M£3.1M202331 December 2024: net assets £3.2M£3.2M202431 December 2025: net assets £3.1M£3.1M2025
Net assets at each year end, 2016 to 2025£0£2M31 December 2016: net assets £3.2M£3.2M'1631 December 2017: net assets £3.4M£3.4M'1731 December 2018: net assets £3.3M£3.3M'1831 December 2019: net assets £3.9M£3.9M'1931 December 2020: net assets £3M£3M'2031 December 2021: net assets £3.1M£3.1M'2131 December 2022: net assets £3.1M£3.1M'2231 December 2023: net assets £3.1M£3.1M'2331 December 2024: net assets £3.2M£3.2M'2431 December 2025: net assets £3.1M£3.1M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£3.1M£2.5M£3.6M£1.1M38
31 Dec 2024£3.2M£3.1M£4.3M£1.5M41
31 Dec 2023£3.1M£1.9M£4.1M£1.7M53
31 Dec 2022£3.1M£1.5M£3.8M£1.4M53
31 Dec 2021£3.1M£2.7M£3.9M£1.4M54
31 Dec 2020£3M£2.8M£4.1M£1.7M59
31 Dec 2019£3.9M£2.9M£4.4M£1.2M62
31 Dec 2018£3.3M£2.5M£4.2M£1.6M61
31 Dec 2017£3.4M£2M£4.3M£1.6M62
31 Dec 2016£3.2M£2.5M£3.8M£1.2M55

Public contracts won

Sun Realm Heating Co. Limited has 5 public sector contract awards on record; the ones with their own published value total £6M, from 2016 to 2024. Source: Contracts Finder and Find a Tender award notices. For 2 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. 4 of these were matched by the company's exact name because the notice gave no company number.

Awards by year

20162
20231
20242

Main buyers

  • Eastern Procurement Limited1 award
  • Paradigm Housing Group1 award
  • Procurement for Housing1 award
  • Central Bedfordshire Council1 award
  • Hightown Housing Association Ltd1 award
BuyerContractValueAwarded
Eastern Procurement LimitedEPHEAT24 - Heating Installation, Servicing and Maintenance Framework - AWARDCeiling, not shown5 Aug 2024
Paradigm Housing GroupHeating Solutions - Sun Realm Heating Company Ltd£2M29 May 2024
Procurement for HousingPfH Heating Solutions FrameworkCeiling, not shown11 Jul 2023
Central Bedfordshire CouncilCBC-0559-T-CE Gas Maintenance and Service Contract - AWARD£3.6M11 Mar 2016
Hightown Housing Association LtdAnnual maintenance contract for Hightown's properties which have gas central heating and appliance servicing and LGSR£425K26 Feb 2016

Where Sun Realm Heating Co. Limited is registered

Sun Realm Heating Co. Limited's registered office on a map of the UK

The registered office is in Luton (LU3), in the Luton local authority area, East of England. Show LU3 3AN on a map.

Other trade companies in LU3

What happens if Sun Realm Heating Co. 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 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
01202277
Status
Active
Company type
Private limited company
Incorporated
3 March 1975 (51 years ago)
Registered office
28 Camford Way, Luton, Bedfordshire, LU3 3AN
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 December (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 December 2025
Last confirmation statement
5 August 2026
Charges (mortgages)
0 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 Luton

Other active plumbing and heating companies registered in Luton.

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Frequently asked questions

When are Sun Realm Heating Co. Limited's accounts due?

Sun Realm Heating Co. Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.

When is Sun Realm Heating Co. Limited's CT600 due?

The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.

Is Sun Realm Heating Co. Limited still trading?

Sun Realm Heating Co. 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 Sun Realm Heating Co. Limited do?

Sun Realm Heating Co. Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Sun Realm Heating Co. Limited?

Sun Realm Heating Co. Limited was incorporated on 3 March 1975, 51 years ago.

Has Sun Realm Heating Co. Limited won public sector contracts?

Yes. Sun Realm Heating Co. Limited has 5 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £6M), most recently from Eastern Procurement Limited.

What is the penalty if Sun Realm Heating Co. 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 Sun Realm Heating Co. 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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