- Company number
- 02844110
- Incorporated
- 11 Aug 199333 years trading
- Registered office
- 75 High Street, Boston, Lincs, PE21 8SX
- Nature of business
- Construction of commercial buildings
Mountains Building Contractors Limited is a 33-year-old private limited company registered in Boston, company number 02844110, one of 60 building contractors in Boston. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 £26K (-5.7%) on the year before, to £423K.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £545K against £196K owed within a year: 2.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2014 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £423K | £8,017 | £545K | £196K | 0 |
| 30 Sep 2024 | £449K | £48K | £563K | £202K | 6 |
| 30 Sep 2023 | £469K | £168K | £690K | £315K | 6 |
| 30 Sep 2022 | £477K | £107K | £627K | £253K | 3 |
| 30 Sep 2021 | £368K | £56K | £739K | £484K | 2 |
| 30 Sep 2020 | £364K | £3,028 | £718K | £466K | 3 |
| 30 Sep 2019 | £189K | £119K | £672K | £598K | 5 |
| 30 Sep 2016 | £134K | £2,970 | £286K | £280K | |
| 30 Sep 2015 | £152K | £311K | £297K | ||
| 30 Sep 2014 | £155K | £353K | £337K |
Where Mountains Building Contractors Limited is registered
The registered office is in Boston (PE21), in the Boston local authority area, East Midlands. Show PE21 8SX on a map.
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- Marshlands LtdPlumbers and heating engineers
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Also registered at this address
18 other companies use the same registered office as Mountains Building Contractors Limited.
- Atc Installations LimitedSpecialist contractors
- Boston Windscreens LimitedMechanics and garages
- CV Electrical LimitedElectricians
- David Cox LimitedProperty developers
- J Parker Electrical LtdElectricians
- JC Consultancy LimitedCivil engineering
- Kents of Spalding LimitedMechanics and garages
- KK Deliveries LimitedMotor traders
- L & A Joinery LtdJoiners and carpenters
- Maddison Water Technology LimitedCivil engineering
- MPC Thermal LimitedInstallers
- Oj Oil Services LtdPlumbers and heating engineers
- Peace of Mind Plumbing and Heating LtdPlumbers and heating engineers
- Regenerated LtdScaffolders
- RT Electrical Solutions LtdElectricians
- SGS Boilers LimitedPlumbers and heating engineers
- Woodthorpe Rentals LtdBuilders
- Yarborough Developments LimitedProperty developers
What happens if Mountains Building Contractors 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2028 | 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
- 02844110
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 1993 (33 years ago)
- Registered office
- 75 High Street, Boston, Lincs, PE21 8SX
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 11 August 2026
- Charges (mortgages)
- 4 outstanding of 7 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Boston
Other active building contractors registered in Boston.
- Oaklands Brickwork Ltd2018
- RKT Homes Limited2025
- Rosebery Homes Limited2021
- Royce Maintenance Services Ltd2025
- S Dennington Construction Ltd2016
- S J Tetther Limited2018
- S. T. Portess & Son Ltd2015
- Shane Stengel Construction Limited2005
All building contractors in Boston · All trades in Boston · Builders across the UK
Frequently asked questions
When are Mountains Building Contractors Limited's accounts due?
Mountains Building Contractors Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Mountains Building Contractors Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Mountains Building Contractors Limited still trading?
Mountains Building Contractors 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 Mountains Building Contractors Limited do?
Mountains Building Contractors Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Mountains Building Contractors Limited?
Mountains Building Contractors Limited was incorporated on 11 August 1993, 33 years ago.
What is the penalty if Mountains Building Contractors 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 Mountains Building Contractors 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.