- Company number
- 10596836
- Incorporated
- 2 Feb 20179 years trading
- Registered office
- Elthorne Gate, 64 High Street, Pinner, HA5 5QA
- Nature of business
- Construction of domestic buildings; Buying and selling of own real estate
Extension Solutions Ltd is a 9-year-old private limited company registered in Pinner, company number 10596836, one of 110 building contractors in Pinner. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £29K (-13.2%) on the year before, to £188K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £1.6M against £1.4M owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £188K | £53K | £1.6M | £1.4M | 0 |
| 31 Aug 2024 | £217K | £14K | £708K | £492K | 2 |
| 31 Aug 2023 | £173K | £6,534 | £943K | £761K | 3 |
| 31 Aug 2022 | £146K | £3,247 | £342K | £172K | 3 |
| 31 Aug 2021 | £148K | £33K | £241K | £58K | 2 |
| 31 Aug 2020 | £111K | £3,004 | £697K | £74K | 2 |
| 31 Aug 2019 | £89K | £5,079 | £594K | £46K | 2 |
| 28 Feb 2018 | £93K | £17K | £447K | £363K | 2 |
Where Extension Solutions Ltd is registered
The registered office is in Pinner (HA5), in the Harrow local authority area, London. Show HA5 5QA on a map.
Other trade companies in HA5
- Elisop LtdCivil engineering
- Kite Property Management LtdBuilders
- Olivares and Hayter LtdSpecialist contractors
- Shallons Electrical LtdElectricians
- Executive Maintenance LtdFinishing trades
- Truspan LtdBuilders
- Mak Electrical Services LtdBuilders
- Bori Scaffolding LtdScaffolders
Also registered at this address
18 other companies use the same registered office as Extension Solutions Ltd.
- A&R Building Services LimitedBuilders
- Ashbel LimitedMechanics and garages
- Autosphere Group LimitedMotor traders
- Bexcrest Homes LimitedProperty developers
- Blossom Grove (Retford) LimitedProperty developers
- Craftmark Homes LimitedProperty developers
- Death Star LimitedBuilders
- Equinox Residential LimitedProperty developers
- Flambard Homes LimitedProperty developers
- Green End Development LimitedBuilders
- Green End Residential LimitedBuilders
- KBB Custom Interiors LimitedLandscapers and gardeners
- Liv Knut Development LtdProperty developers
- Makk Homes LimitedProperty developers
- Orthrus Holdings LtdBuilders
- Retto Interiors LimitedInstallers
- Sal Development Group LimitedProperty developers
- Smarter Electrics LimitedElectricians
What happens if Extension Solutions Ltd 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 10596836
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2017 (9 years ago)
- Registered office
- Elthorne Gate, 64 High Street, Pinner, HA5 5QA
- Nature of business
- Construction of domestic buildings (SIC 41202)
Buying and selling of own real estate (SIC 68100) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 1 February 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
- Previous names
- Residential Building Solutions Construction Ltd (until 25 Jul 2017)
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 Pinner
Other active building contractors registered in Pinner.
- Fara Construction Limited2024
- Focus Building Solutions Limited2010
- Gaborelu Ltd2022
- Gavacan (Ascot) Ltd2024
- Gavacan (DRN) Ltd2026
- Gavacan (G.E.) 2 Ltd2025
- Gavacan (G.E.) Ltd2024
- Gavacan (Rickmansworth) Ltd2025
All building contractors in Pinner · All trades in Pinner · Builders across the UK
Frequently asked questions
When are Extension Solutions Ltd's accounts due?
Extension Solutions Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Extension Solutions Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Extension Solutions Ltd still trading?
Extension Solutions Ltd 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 Extension Solutions Ltd do?
Extension Solutions Ltd is registered under Construction of domestic buildings (SIC 41202); Buying and selling of own real estate (SIC 68100).
How old is Extension Solutions Ltd?
Extension Solutions Ltd was incorporated on 2 February 2017, 9 years ago.
What is the penalty if Extension Solutions Ltd 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 Extension Solutions Ltd 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.