2 November 2023 · Sharon Winson
How much does it cost to build a double garage?
The cost of a double garage comes down to five things: groundwork, the base, the walls, the roof and the doors. Here's how each one moves the price.

The cost of building a double garage is set by five things: ground preparation, the concrete base, the wall construction, the roof, and the doors and finishing. A prefabricated concrete double garage is usually the quickest and most cost-effective route — and every Nucrete price includes VAT, delivery and installation, with exact prices by postcode area.
What groundwork does a double garage need?
Before anything goes up, the site has to come down to level. On a flat garden this is a small job; on a sloping or uneven site, excavation and muck-away can add real money, so it's worth pricing early. If an old garage is coming down first, factor in demolition and disposal too — asbestos roofs in particular need handling properly.
What kind of base does a double garage need?
Every double garage sits on a reinforced concrete slab, laid level and typically specified at C30-grade concrete or better. The base is not the place to economise — a poor slab shortens the life of whatever stands on it. If you don't have a builder lined up, Nucrete offers its own concrete base laying service, so the base and the building are one job with one point of responsibility.
What are double garage walls built from?
The walls are where the biggest cost differences hide. Traditional brick or block walls are built by hand on site, which means weeks of skilled labour. Timber framing is faster but needs ongoing treatment. Prefabricated concrete panels — the way every Nucrete double garage is made — are cast in our Bradford factory and bolted together on site, so a double garage is typically installed in around a day. If you're weighing the options in detail, see our companion guide to the cheapest way to build a double garage.
How does the roof affect the cost?
Roofing runs from economical to premium. Fibre cement and corrugated steel sheets are the budget options and perform well; tile-effect sheets cost more but give the look of a tiled roof at a fraction of its weight and price; real slate or tile sits at the top and generally needs a stronger structure to carry it. An apex (pitched) roof also adds useful storage height over a flat or pent design.
What do doors, windows and finishing add?
A standard up-and-over door is the economical choice; electric roller doors add convenience and security for a higher price — on a double garage you'll be choosing either one double door or two singles. Windows and a side door bring in light and access for a modest cost. Finishing touches are where a double garage stops looking utilitarian: brick-effect fronts, uPVC fascias and gutters, interior wiring and insulation can all be added, each nudging the budget up.
So what's the bottom line for a double garage?
Blog figures date quickly, so we won't pin a number here. What we can say is that a prefabricated concrete double garage removes most of the site labour that makes traditional builds expensive — and with Nucrete the price you see is the price you pay: VAT, delivery and installation all included, backed by a 10-year structural guarantee. Our concrete garage prices page gives exact prices for your postcode area.
What is the cheapest way to build a double garage?
A prefabricated concrete sectional double garage is usually the cheapest permanent option, because the panels are factory-made and installed in around a day instead of weeks of on-site building work.
How long does it take to install a concrete double garage?
Most Nucrete double garages are installed in around a day on a prepared concrete base, by our own installation teams.
Does a double garage need a special base?
It needs a sound, level reinforced concrete slab — typically C30-grade concrete or better. Nucrete can lay the base for you as part of the job.
Are delivery and installation included in Nucrete's prices?
Yes. Every Nucrete price includes VAT, delivery and installation. Prices vary by delivery postcode area — the prices page gives exact figures for your address.