5 garden room builders in Kent
Kent has a busy market for insulated garden rooms and offices. These are the firms we have checked so far, with the facts each one publishes on its own website.
Listed in alphabetical order – not ranked. Every fact comes from the firm's own website, checked 20 October 2026. We haven't used these firms ourselves, and none of them has paid to be here. Where a firm doesn't publish something, we say “not stated”.
eGarden Rooms
- Based in
- Canterbury
- Area covered
- The South East, including Kent, Greater London, Surrey, East and West Sussex and Essex.
- Prices
- not stated
- Insulation
- not stated
- Planning help
- Says its experts can guide you through planning and permitted development rules.
- Guarantee
- not stated
- Also says
- Bespoke garden room installation company; can include bathrooms and kitchens.
Gabriel's Sheds
- Based in
- Marsh Green, near Edenbridge (TN8)
- Area covered
- Kent, Surrey and Sussex; names Crawley, Reigate, Sevenoaks and Tunbridge Wells.
- Prices
- not stated
- Insulation
- not stated
- Planning help
- not stated
- Guarantee
- not stated
- Also says
- Garden offices built on a C24 structurally graded, vacuum pressure-treated timber frame with a breather membrane (per their site).
Garden Office Buildings
- Based in
- Biggin Hill (TN16)
- Area covered
- Kent, Surrey, Sussex and South East London.
- Prices
- From £25,000 (their office/studio, plastered, decorated and wired as standard)
- Insulation
- Fully insulated, professionally built rooms (per their site)
- Planning help
- Says planning permission is handled for you.
- Guarantee
- 10-year warranty
- Also says
- Says it has built more than 1,000 garden rooms since 2004.
Mighty Oak Construction
- Based in
- Tunbridge Wells
- Area covered
- Kent, Sussex, Surrey and South London, within 60 miles of Tunbridge Wells.
- Prices
- not stated
- Insulation
- Fully insulated garden rooms (per their site)
- Planning help
- Publishes planning permission guidance.
- Guarantee
- not stated
- Also says
- General builder that also builds garden rooms, gyms and offices.
The Garden House Company
- Based in
- Tunbridge Wells
- Area covered
- Kent and Sussex.
- Prices
- not stated
- Insulation
- not stated
- Planning help
- Lists design and planning services.
- Guarantee
- not stated
- Also says
- Designs, manufactures and builds bespoke garden rooms, studios and annexes.
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Before you commit, read our planning permission guide and kit cabin or made-to-measure garden room? Run a builder? Tell us if anything here is out of date.