- Companies
- Plumbers and heating engineers
- Grimsby
- Ultimate Mechanical Services Limited
Ultimate Mechanical Services Limited
- Company number
- 16994398
- Incorporated
- 28 Jan 2026
- Registered office
- Office A Humberston Business Park, Wilton Road, Grimsby, DN36 4BJ
- Nature of business
- Plumbing, heat and air-conditioning installation
Ultimate Mechanical Services Limited is a newly incorporated private limited company registered in Grimsby, company number 16994398, one of 83 plumbing and heating companies in Grimsby. Its next accounts are due at Companies House on 28 October 2027, and its first CT600 is due at HMRC on 27 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Ultimate Mechanical Services Limited is registered
The registered office is in Grimsby (DN36), in the North East Lincolnshire local authority area, Yorkshire and The Humber. Show DN36 4BJ on a map.
Other trade companies in DN36
- Net Zero Renewables Ltd LtdBuilders
- Ultimate Civils LimitedCivil engineering
- K G Collins Roofing LtdRoofers
- Coops Autoneering LtdMechanics and garages
- Ibuild Projects LimitedProperty developers
- Humberside Power LimitedElectricians
- Home Fresh Property Maintenance LimitedFacilities management
- Home Fresh Professional Cleaning LimitedCleaning companies
Also registered at this address
8 other companies use the same registered office as Ultimate Mechanical Services Limited.
- Church Lane Humberston LimitedProperty developers
- Haven Mill Living LtdProperty developers
- Imperial Crescent LimitedProperty developers
- Seaside Cleans LtdCleaning companies
- Swan House Grimsby LtdProperty developers
- Ultimate Electrical Contracting LimitedElectricians
- Ultimate Fire & Security LimitedInstallers
- Ypg Strawberry Fields LtdMachinery repair and installation
What happens if Ultimate 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 28 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Oct 2027 to 28 Nov 2027 | £150 |
| 1 to 3 months late | 29 Nov 2027 to 28 Jan 2028 | £375 |
| 3 to 6 months late | 29 Jan 2028 to 28 Apr 2028 | £750 |
| More than 6 months late | From 29 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16994398
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 January 2026
- Registered office
- Office A Humberston Business Park, Wilton Road, Grimsby, DN36 4BJ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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 Grimsby
Other active plumbing and heating companies registered in Grimsby.
- Union Richmond Ltd2019
- Watkinsons Heating Ltd2019
- Westlands Heating Limited2010
- Woods (Waltham) Limited2017
- Yolo Heat Ltd2026
- All Seasons Refrigeration & Air Conditioning Limited2003
- Alpha Plumbing Ltd2024
- Atg Building Ltd2023
All plumbing and heating companies in Grimsby · All trades in Grimsby · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ultimate Mechanical Services Limited's accounts due?
Ultimate Mechanical Services Limited's next accounts are due at Companies House by 28 October 2027 (in 381 days), covering the period to 31 January 2027.
When is Ultimate Mechanical Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 January 2027, due by 27 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ultimate Mechanical Services Limited still trading?
Ultimate 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 Ultimate Mechanical Services Limited do?
Ultimate Mechanical Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ultimate Mechanical Services Limited?
Ultimate Mechanical Services Limited was incorporated on 28 January 2026, less than a year ago.
What is the penalty if Ultimate 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 Ultimate Mechanical Services 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.