- Companies
- Installers
- Welwyn Garden City
- Smartier Group Ltd
Smartier Group Ltd
- Company number
- 12139326
- Incorporated
- 5 Aug 20197 years trading
- Registered office
- 132 Stanborough Green, Welwyn Garden City, AL8 6XJ
- Nature of business
- Other construction installation; Other specialised construction activities n.e.c.
Smartier Group Ltd is a 7-year-old private limited company registered in Welwyn Garden City, company number 12139326, one of 19 installation companies (insulation, lifts, shutters and similar) in Welwyn Garden City. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Smartier Group LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £42K (+11.5%) on the year before, to £410K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £716K against £512K owed within a year: 1.4 times cover.
- 3 employees on average, down from 5 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £410K | £183K | £716K | £512K | 3 |
| 31 Aug 2024 | £368K | £143K | £235K | £135K | 5 |
| 31 Aug 2023 | £337K | £154K | £177K | £129K | 4 |
| 31 Aug 2022 | £383K | £359K | £448K | £117K | 4 |
| 31 Aug 2021 | £43K | £95K | £117K | 2 | |
| 31 Aug 2020 | £26K | £74K | £68K | 0 |
Where Smartier Group Ltd is registered
The registered office is in Welwyn Garden City (AL8), in the Welwyn Hatfield local authority area, East of England. Show AL8 6XJ on a map.
Other trade companies in AL8
- Reverie Autocare LtdMechanics and garages
- Al8 Plumbing LtdPlumbers and heating engineers
- JSP Commercial LtdSpecialist contractors
- Sure Shift Motors LtdMotor traders
- Elimef LtdCleaning companies
- Creative Driveway Solutions LimitedProperty developers
- LT Air Conditioning LimitedPlumbers and heating engineers
- Hertssparky LtdBuilders
What happens if Smartier Group 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
- 12139326
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 August 2019 (7 years ago)
- Registered office
- 132 Stanborough Green, Welwyn Garden City, AL8 6XJ
- Nature of business
- Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 21 May 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Welwyn Garden City
Other active installation companies (insulation, lifts, shutters and similar) registered in Welwyn Garden City.
- Summit Render Supplies London Limited2021
- Ultra KBB Ltd2020
- Unique Surfaces Plus Limited2017
- Adbrook Fire Protection Ltd2026
- Build on Time Limited2010
- Cdi Drylining Limited2022
- Coletta Doors Solutions Limited2011
- DJJ Resources Ltd2024
All installation companies (insulation, lifts, shutters and similar) in Welwyn Garden City · All trades in Welwyn Garden City · Installers across the UK
Frequently asked questions
When are Smartier Group Ltd's accounts due?
Smartier Group 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 Smartier Group 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 Smartier Group Ltd still trading?
Smartier Group 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 Smartier Group Ltd do?
Smartier Group Ltd is registered under Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999).
How old is Smartier Group Ltd?
Smartier Group Ltd was incorporated on 5 August 2019, 7 years ago.
What is the penalty if Smartier Group 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 Smartier Group 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.