Starter price list
Garden offices, studios, garages and summerhouses, base to finish. 16 priced lines.
InstaQuote
getinstaquote.com
Our estimates, Sep 2026
Read this first. These are starting points, not a rate card. Our own starting estimates, checked September 2026. Your area, your costs and your diary decide the real number, so mark them up or down before you quote off them.
Pick the work, put the sizes in, and see a ballpark. Free, nothing to sign up for.
Suggested starting rates
The rates InstaQuote sets a garden rooms & outbuildings business up on. The m² bands cover general surface-finish work at three levels of finish.
Base
| Job | Unit | From |
|---|
| Concrete base for garden room | m² | £105 |
| Ground screw base | each | £95 |
Structure
| Job | Unit | From |
|---|
| Garden room shell (timber frame, insulated) | m² | £850 |
| Existing shed / garage demolished & removed | each | £850 |
| Garage conversion to room | m² | £950 |
Cladding
| Job | Unit | From |
|---|
| Cedar / composite cladding | m² | £115 |
Roof
| Job | Unit | From |
|---|
| EPDM flat roof to garden room | m² | £95 |
Interior
| Job | Unit | From |
|---|
| Internal lining & skim | m² | £62 |
| Garden room decorated | m² | £22 |
Electrics
| Job | Unit | From |
|---|
| Garden room power & lighting (armoured feed) | each | £1,450 |
Windows
| Job | Unit | From |
|---|
| Bi-fold / French doors fitted | each | £2,650 |
Flooring
| Job | Unit | From |
|---|
| Insulated floor build-up & finish | m² | £78 |
Garages
| Job | Unit | From |
|---|
| Single garage built (block, roof, door) | each | £18,500 |
Summerhouse
| Job | Unit | From |
|---|
| Summerhouse supplied & built | each | £3,200 |
Services
| Job | Unit | From |
|---|
| Water supply to garden room | m | £55 |
Day rates
| Garden room fitter day rate | day | £260 |
Prices are sell prices including labour, exclude VAT, and are starting points only. Check your own material costs before you quote. InstaQuote Ltd, Coventry, company no. 17224118.
How much does garden rooms & outbuildings work cost in the UK?
There is no one price: it moves with your area, the size of the job and what the materials cost that week. As a starting point, this list puts garden rooms & outbuildings at about £260 a day (garden room fitter day rate), and the jobs below at the prices shown. A trade using InstaQuote changes every one of these to their own numbers, and the quote prices off those.
- Concrete base for garden room£105/m²
- Ground screw base£95 each
- Garden room shell (timber frame, insulated)£850/m²
- Existing shed / garage demolished & removed£850 each
- What is a typical garden rooms & outbuildings day rate?
- This list starts at £260 a day (garden room fitter day rate). Day rates move a lot by area and by how busy the week is, so treat it as a ballpark and price the job, not the day, wherever you can.
- Should a garden rooms & outbuildings quote be priced per job or per day?
- Per job, wherever you can measure it. A priced line per bit of work is easier for the customer to say yes to, and it protects you if the job grows. Keep the day rate for call outs and work you cannot measure up front.
- Do these prices include VAT?
- No. They are the price before VAT. If you are VAT registered you add VAT on top, and InstaQuote works it out on every quote and invoice, along with CIS and the reverse charge where they apply.
- Are these prices reliable?
- These are starting points, not a rate card. Our own starting estimates, checked September 2026. Your area, your costs and your diary decide the real number, so mark them up or down before you quote off them.
InstaQuote sets a garden rooms & outbuildings account up with this list already in it. Snap your notes or type the job in, it builds the quote off your rates, then it takes the deposit, books the job, drafts the invoice and chases it.
7 days free. No card to start. Then from £49/month.
See how it runs a job for garden room builders