Garage Conversions
Transform your garage into valuable living space. Most garages are used for storage, not cars. A conversion gives you a warm, bright new room for a fraction of the cost of an extension.
Garage Conversions by Gage Construction
A garage conversion is one of the fastest, most cost-effective ways to add a room to your home. We insulate the floor, walls and roof, replace the garage door with a wall and window, bring in heating and electrics, and finish the space to match the rest of your house.
What we do
- Home offices
- Extra bedrooms and en-suites
- Home gyms
- Playrooms and family rooms
- Guest suites and annexes
- Utility rooms and boot rooms

Fully managed from start to finish
- Structural survey of the existing garage
- Building warrant drawings and application
- Insulated floor, walls and ceiling to current regulations
- New front wall with window or doors
- Heating, electrics, lighting and data points
- Plastering, flooring, doors and decoration
Every project gets a written fixed-price quotation, a programme before we start and one manager who is your point of contact throughout.
Garage Conversions: your questions answered
Do I need planning permission to convert my garage?
Usually not, because you are not changing the footprint of the building. You will need a building warrant, which we prepare and submit for you. If your house is in a conservation area or the garage is detached, we will check the rules first.
How long does a garage conversion take?
A single garage typically takes 3 to 4 weeks from start to finish. Double garages and conversions with a bathroom take a little longer.
Will it be as warm as the rest of the house?
Yes. We build to the same insulation and damp-proofing standards as a new room, so it is a proper living space all year round.
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