Garden Room Installers Near Me: 8 Checks Before a Deposit

Searching for garden room installers near me throws up dozens of firms with near-identical websites, the same glossy photos and the same “free quote” button. The differences that matter only show up when you ask the right questions: who checks the planning position, what happens to your deposit if the company folds, who signs off the electrics, and what the guarantee is actually worth. This page gives you eight checks to run on any installer before you hand over money, with the consumer law that backs you up.

If you are still weighing up whether to buy a kit or pay for a full install, start with our comparison of garden room kits vs fully installed. Everything below assumes you have chosen installed. More buying advice is on the Best Garden Room homepage.

1. Look at buildings they have actually finished

A gallery of photos proves very little: some are renders, some come from the manufacturer of the cladding, and some are other firms’ work. Ask for the addresses or postcodes of two or three rooms finished in the last year near you, and ask whether you can speak to the owners or visit one. A good local installer will have customers happy to show off their room. Ask the owners how the room has coped with its first winter, whether anything leaked or moved, and how quickly the firm responded when they rang.

2. Check the company on Companies House

If the installer trades as a limited company, look it up free on the government’s Companies House register. Check that the company name on the quote matches the register, how long it has existed, whether its accounts are filed on time, and whether the directors have a string of dissolved companies in the same trade behind them. A business that has traded under three names in five years is telling you something about how its guarantees might work out.

3. Ask who checks the planning and building regulations

Most garden rooms are built under permitted development, but the limits are strict. A room within 2m of a boundary must be no more than 2.5m high overall, it cannot go forward of the front of the house, and outbuildings together cannot cover more than half the land around the house. Listed buildings, flats and many conservation areas have tighter rules again. A good installer will measure the site, explain which limits apply to you, and say in writing who is responsible if the room turns out to need planning permission.

Building regulations are a separate question. The Planning Portal says regulations will not normally apply to a detached outbuilding under 15 square metres with no sleeping accommodation. Between 15 and 30 square metres you will not normally need approval provided there is no sleeping accommodation and the building is either at least one metre from any boundary or built substantially of non-combustible materials (Planning Portal guidance on outbuildings and building regulations). Many garden room firms design rooms just under these thresholds for that reason. If yours is over 30 square metres, or will ever be slept in, ask how they will handle building control.

4. Ask who does the electrics and what certificate you get

Power to a garden room normally means a new circuit from your consumer unit, often with an armoured cable buried across the garden. In England that is notifiable electrical work under Part P of the Building Regulations. Ask whether the electrician is the installer’s own employee or a subcontractor, which competent person scheme they are registered with, and confirm in writing that you will receive an Electrical Installation Certificate and a building regulations compliance certificate at the end. Without them, you may struggle when you sell the house.

5. Get the quote broken down, line by line

A one-line price for “garden room, installed” makes it impossible to compare firms or to argue about extras later. Ask for the quote to separate:

the base or foundation type (concrete slab, ground screws or pads) and site clearance
the structure, insulation and roof covering
doors and windows, including glazing type
electrics, including the cable run from the house and the number of sockets and lights
interior finish, flooring and any decking or steps
waste removal and access, if materials have to be carried through the house
VAT, so you know the figure is the full price

Anything not on the list is likely to be an extra. Our guide to hidden garden room costs covers the items quotes most often leave out. If you would rather start from a shortlist of national firms, see our round-up of the best garden room companies in the UK.

6. Protect your deposit

Most installers ask for a deposit to order materials, and a garden room firm going bust between deposit and delivery is the most common way buyers lose money. Three protections are worth knowing. What the contract itself should say is covered in our guide to garden room deposits and contracts.

Panel listing four ways to protect a garden room deposit: Section 75 for prices over £100 and up to £30,000, deposit protection insurance, staged payments, and a 14-day cooling-off period — Four ways to protect your money before paying an installer. Graphic by Best Garden Room

Pay part on a credit card

Under Section 75 of the Consumer Credit Act, your card provider is jointly liable with the trader if something goes wrong, provided the goods or service cost over £100 and not more than £30,000. Which? explains that you do not need to have paid the full amount on the card: paying only a deposit on a credit card can cover the whole price (Which? on Section 75). Note the upper limit. If your room costs more than £30,000, Section 75 does not apply to it, so the other protections matter more.

Ask about deposit protection insurance

Some installers insure customer deposits so they are repaid if the business stops trading. Ask for the insurer’s name, how much of the deposit is covered and for how long, and whether you receive your own policy document. A verbal “your deposit is protected” is not enough.

Keep the deposit proportionate

The deposit should match what the installer genuinely has to spend before arriving on site. Stage further payments against visible progress, such as the base complete or the shell watertight, and hold back the final payment until the room is finished and the certificates are in your hand.

7. Read the guarantee, not the headline

Garden room firms advertise guarantees of 10 years or more. Check what the guarantee covers (the structure, the roof membrane, the glazing, the workmanship) and what it excludes. Above all, ask what happens if the company is no longer trading. A guarantee from a firm that has closed is worth nothing unless it is insurance backed. Citizens Advice describes an insurance-backed guarantee as cover designed to keep the installer’s workmanship guarantee valid if the installer stops trading. If one is offered, ask for the insurer’s name and confirm you will be registered with them.

8. Know your cancellation rights

If you agree the contract at home, over the phone or online, you normally have a 14 day cooling-off period to cancel. Citizens Advice explains that the business must give you details of how to cancel, and if it does not, the cooling-off period is extended by 14 days from when you receive them, up to a maximum of one year (Citizens Advice on cancelling building work). If you ask the installer to start work inside the 14 days and then cancel, you may have to pay for work done and materials supplied. Beware of any salesperson who pushes for a signature and a start date on the same visit.

Once the work starts, the Consumer Rights Act 2015 requires the installer to carry out the service with reasonable care and skill, within a reasonable time if no date is agreed, and for a reasonable price if no price was fixed. Put the start date, the completion date and the full specification in the contract so there is no argument about what was agreed.

Red flags when choosing a garden room installer

A large deposit demanded before any site survey
A discount that expires today if you sign now
No company number, no landline and no trading address
Vague answers about planning: “you never need permission for these”
No mention of who does the electrics, or no certificate offered
A guarantee with no named insurer

Frequently asked questions

How do I find good garden room installers near me?

Ask for addresses of recent rooms near you, speak to those owners, check the company on Companies House and compare at least three itemised quotes. Local recommendations from neighbours who have had a room for a winter or two are worth more than online star ratings.

How much deposit should a garden room company ask for?

There is no legal maximum. Keep it in line with what the installer must spend before arriving, pay part of it by credit card if the room costs £30,000 or less, and ask whether the deposit is insured.

Do garden room installers handle planning permission?

Many will advise on permitted development and some will submit an application for you, but the legal responsibility stays with you as the owner. Get their advice in writing and check your own position on the Planning Portal.

Is a garden room covered by Section 75?

Yes, if the total price is over £100 and not more than £30,000 and you paid at least part of it on a credit card. Rooms costing more than £30,000 fall outside Section 75.

Can I cancel a garden room order?

If you signed at home, by phone or online, you normally have 14 days to cancel. After that, cancelling usually means breaking the contract, and you may lose some or all of the deposit.