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  4. Peak Mechanical Services Limited

Peak Mechanical Services Limited

ActiveTotal exemption (full) accountsPlumbers and heating engineersDoncaster
Company number
10140200
Incorporated
21 Apr 201610 years trading
Registered office
Peak Group of Companies Ltd LKH Estate, Tickhill Road, Doncaster, DN4 8QG
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
476 days
31 Jan 2028
Net assets
£745K▲
+2.1% on the year before
Cash at bank
£969K▲
At 30 Apr 2026
Employees
18
Average during the year
From the Companies House register, 1 Oct 2026

Peak Mechanical Services Limited is a 10-year-old private limited company registered in Doncaster, company number 10140200, one of 150 plumbing and heating companies in Doncaster. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 2028.

Key dates

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

Accounts due
31 Jan 2028
in 476 days
For the period to 30 Apr 2027
CT600 due
30 Apr 2028
in 566 days
Period 1 May 2026 to 30 Apr 2027
Corporation tax payment
1 Feb 2028
in 477 days
9 months and 1 day after the period end
Confirmation statement
26 Jan 2027
in 106 days
Last made up to 12 Jan 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 £15K (+2.1%) on the year before, to £745K.
  • Net assets rose in 7 of 9 year-on-year comparisons on record.
  • Current assets of £2M against £1.3M owed within a year: 1.5 times cover.
  • 18 employees on average, up from 16 the year before.
  • Balance sheets on record for 10 years, 2017 to 2026.

Net assets by year

Net assets at each year end, 2017 to 2026£0£250K£500K30 April 2017: net assets £38K£38K201730 April 2018: net assets £84K£84K201830 April 2019: net assets £151K£151K201930 April 2020: net assets £144K£144K202030 April 2021: net assets £308K£308K202130 April 2022: net assets £463K£463K202230 April 2023: net assets £457K£457K202330 April 2024: net assets £658K£658K202430 April 2025: net assets £730K£730K202530 April 2026: net assets £745K£745K2026
Net assets at each year end, 2017 to 2026£0£250K£500K30 April 2017: net assets £38K£38K'1730 April 2018: net assets £84K£84K'1830 April 2019: net assets £151K£151K'1930 April 2020: net assets £144K£144K'2030 April 2021: net assets £308K£308K'2130 April 2022: net assets £463K£463K'2230 April 2023: net assets £457K£457K'2330 April 2024: net assets £658K£658K'2430 April 2025: net assets £730K£730K'2530 April 2026: net assets £745K£745K'26
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Apr 2026£745K£969K£2M£1.3M18
30 Apr 2025£730K£694K£1.3M£636K16
30 Apr 2024£658K£965K£1.4M£742K16
30 Apr 2023£457K£667K£1.1M£662K15
30 Apr 2022£463K£428K£822K£345K11
30 Apr 2021£308K£303K£556K£223K10
30 Apr 2020£144K£197K£62K9
30 Apr 2019£151K£239K£93K
30 Apr 2018£84K£176K£99K
30 Apr 2017£38K£69K£39K

Where Peak Mechanical Services Limited is registered

Peak Mechanical Services Limited's registered office on a map of the UK

The registered office is in Doncaster (DN4), in the Doncaster local authority area, Yorkshire and The Humber. Show DN4 8QG on a map.

Other trade companies in DN4

Also registered at this address

1 other company uses the same registered office as Peak Mechanical Services Limited.

What happens if Peak Mechanical Services 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 January 2028.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Feb 2028 to 29 Feb 2028£150
1 to 3 months late1 Mar 2028 to 30 Apr 2028£375
3 to 6 months late1 May 2028 to 31 Jul 2028£750
More than 6 months lateFrom 1 Aug 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 May 2028£200
3 months late30 Jul 2028another £200
6 months late30 Oct 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Apr 2029another 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
10140200
Status
Active
Company type
Private limited company
Incorporated
21 April 2016 (10 years ago)
Registered office
Peak Group of Companies Ltd LKH Estate, Tickhill Road, Doncaster, DN4 8QG
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
30 April (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 April 2026
Last confirmation statement
12 January 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.

Similar companies in Doncaster

Other active plumbing and heating companies registered in Doncaster.

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

Frequently asked questions

When are Peak Mechanical Services Limited's accounts due?

Peak Mechanical Services Limited's next accounts are due at Companies House by 31 January 2028 (in 476 days), covering the period to 30 April 2027.

When is Peak Mechanical Services Limited's CT600 due?

The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.

Is Peak Mechanical Services Limited still trading?

Peak Mechanical Services 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 Peak Mechanical Services Limited do?

Peak Mechanical Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Peak Mechanical Services Limited?

Peak Mechanical Services Limited was incorporated on 21 April 2016, 10 years ago.

What is the penalty if Peak Mechanical Services 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 Peak Mechanical Services 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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