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Dean Underwood Plumbing & Heating Limited

ActiveMicro-entity accountsPlumbers and heating engineersKettering
Company number
05913152
Incorporated
22 Aug 200620 years trading
Registered office
135 Pioneer Avenue, Desborough, Kettering, NN14 2PB
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
80 days
31 Dec 2026
Net assets
£188K▼
-1.6% on the year before
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

Dean Underwood Plumbing & Heating Limited is a 20-year-old private limited company registered in Kettering, company number 05913152, one of 89 plumbing and heating companies in Kettering. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.

Key dates

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

Accounts due
31 Dec 2026
in 80 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 170 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 81 days
9 months and 1 day after the period end
Confirmation statement
5 Sep 2027
in 328 days
Last made up to 22 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 £3,052 (-1.6%) on the year before, to £188K.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • Current assets of £300K against £114K owed within a year: 2.6 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£100K£200K31 March 2016: net assets £8,325£8,325201631 March 2017: net assets £37K£37K201731 March 2018: net assets £64K£64K201831 March 2019: net assets £113K£113K201931 March 2020: net assets £189K£189K202031 March 2021: net assets £215K£215K202131 March 2022: net assets £190K£190K202231 March 2023: net assets £185K£185K202331 March 2024: net assets £191K£191K202431 March 2025: net assets £188K£188K2025
Net assets at each year end, 2016 to 2025£0£100K£200K31 March 2016: net assets £8,325£8,325'1631 March 2017: net assets £37K£37K'1731 March 2018: net assets £64K£64K'1831 March 2019: net assets £113K£113K'1931 March 2020: net assets £189K£189K'2031 March 2021: net assets £215K£215K'2131 March 2022: net assets £190K£190K'2231 March 2023: net assets £185K£185K'2331 March 2024: net assets £191K£191K'2431 March 2025: net assets £188K£188K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£188K£300K£114K1
31 Mar 2024£191K£293K£105K1
31 Mar 2023£185K£221K£39K1
31 Mar 2022£190K£228K£42K1
31 Mar 2021£215K£252K£43K1
31 Mar 2020£189K£266K£84K1
31 Mar 2019£113K£205K£102K
31 Mar 2018£64K£112K£62K
31 Mar 2017£37K£58K£118K£83K
31 Mar 2016£8,325£39K£63K£56K

Who runs and owns Dean Underwood Plumbing & Heating Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
D*** U***DirectorAug 2006
J*** U***SecretaryAug 2006
2 former officers
NameRoleAppointedLeft
Temple Secretaries LimitedCorporate Nominee SecretaryAug 2006Aug 2006
Company Directors LimitedNominee director (company)Aug 2006Aug 2006

Person with significant control

Individual · since Apr 2016
D*** U***
Owns 75% or more of the shares

Where Dean Underwood Plumbing & Heating Limited is registered

Dean Underwood Plumbing & Heating Limited's registered office on a map of the UK

The registered office is in Kettering (NN14), in the North Northamptonshire local authority area, East Midlands. Show NN14 2PB on a map.

Other trade companies in NN14

What happens if Dean Underwood Plumbing & 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 HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 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
05913152
Status
Active
Company type
Private limited company
Incorporated
22 August 2006 (20 years ago)
Registered office
135 Pioneer Avenue, Desborough, Kettering, NN14 2PB
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 March 2025
Last confirmation statement
22 August 2026

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.

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Frequently asked questions

When are Dean Underwood Plumbing & Heating Limited's accounts due?

Dean Underwood Plumbing & 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 Dean Underwood Plumbing & Heating Limited's CT600 due?

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

Is Dean Underwood Plumbing & Heating Limited still trading?

Dean Underwood Plumbing & 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 Dean Underwood Plumbing & Heating Limited do?

Dean Underwood Plumbing & Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Dean Underwood Plumbing & Heating Limited?

Dean Underwood Plumbing & Heating Limited was incorporated on 22 August 2006, 20 years ago.

Who runs Dean Underwood Plumbing & Heating Limited?

Dean Underwood Plumbing & Heating Limited has 1 active director, the longest-serving appointed in Aug 2006. Their names and service addresses are on the Companies House register.

Who owns Dean Underwood Plumbing & Heating Limited?

One person or company has significant control of Dean Underwood Plumbing & Heating Limited: an individual (owns 75% or more of the shares).

What is the penalty if Dean Underwood Plumbing & 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 Dean Underwood Plumbing & Heating 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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