Garage insulation
Insulating a garage you only park in is your choice: it cuts condensation and makes a workshop bearable. Insulate the roof while it's being re-covered, the walls before they're finished, and fit an insulated sectional door. Once you heat it or use it as a room, it's a conversion with building regulations to meet.
When it's worth insulating a garage, and when it turns the job into a conversion.
Free and no obligation. Your plan goes to one builder, not a list.
- Roofinsulate while it's re-covered
- Doorinsulated sectional panels
- Wallsbefore they're skimmed
- Heatedmeans a conversion

Where the heat goes
- The roof: boards on the deck under the new covering, when it costs least.
- The door: an insulated sectional door instead of a thin metal one.
- The walls: insulated plasterboard or boards behind dry-lining.
- The floor: only worth it under a new screed if the garage will be heated.
Renovating or converting?
Renovating keeps it a garage: a dry roof, a good door, a level floor, sound walls and light. Converting makes it a room you heat and use, with building regulations to meet: insulation to the standard, ventilation, and a fire escape window for a bedroom.
Turning the garage into a room, with the planning and building regulations: garageconversion.ie.
Plan your garage renovation
A few quick taps: what your garage needs, what the roof and door cost, and the order to do it in. Contact details come last, and only if you want a price.
Your garage, the roof and insulation: €1,800 to €3,500.
How the estimate is worked out
Roof and door ranges are what Irish roofers and door companies publish for the same job: the lowest to the highest figure. A double garage roof is its area times the rate for the covering. Floors, walls, windows, insulation and electrics vary too much from garage to garage to price fairly without seeing them, so the builder prices those on a visit.
The jobs on a garage
Each job has its own page: what it involves, what it costs where we can price it, and what to check. Insulation and electrics: insulation, electrics.
Garage doorsUp-and-over, roller, sectional or double: prices and what to pick.
Garage roof replacementStripped and re-covered in felt, rubber or fibreglass.
Garage floorsScreeded level over the old slab, then tiles, epoxy or paint.
Garage walls and windowsBlockwork repairs, render, a skim inside, a window or a side door.
Garage door repairSprings, cables, motors and sensors: what's wrong and who fixes it.
Asbestos garage roofsOld fibre-cement sheets: what to check before anyone touches them.Questions before you start
Is it worth insulating a garage?
If you use it as a workshop or gym, or want less condensation on cars and tools, yes. Do it while the roof or walls are open.
Do I need building regulations to insulate a garage?
Not to insulate a garage that stays a garage. Heating it or using it as a room makes it a conversion, with regulations to meet.
What's the warmest garage door?
A sectional door with insulated panels and good seals.
Every guide and county page
Jobs
Costs and guides

Get the garage sorted, in the right order
Pick the garage and the jobs to see what the roof and door cost and the order to do it all in. When you want a price, your plan goes to a single vetted builder for your area.
