/ Free tools
Free quote calculator. No signup.
Switch trades, change the numbers, watch the price move. This is the same deterministic engine that powers paid Karven accounts, set to typical 2026 rates. Try it below, then browse a dedicated calculator for your trade. No signup, no card, no spam.
The garage door
price calculator.
Three sections. garage door, optional front door, optional wall cladding. Same shape every garage-door installer in Sydney uses, with your own rates and margins.
/ Every trade
A calculator for every job.
Pick your trade for a dedicated tool with a real AU price band.
Deck cost
Price a hardwood or composite deck by size, board type and a few extras.
$6,500 - $17,500
House repaint
Estimate an interior or exterior repaint by area, coats and prep.
$5,500 - $16,500
Concrete slab
Price a driveway, shed slab or path by size, strength and finish.
$2,800 - $9,500
Fencing
Estimate Colorbond or timber fencing by length, height and gates.
$3,100 - $7,200
Garage door
Price a new sectional or panel-lift garage door with motor and install.
$2,750 - $6,200
Landscaping
Estimate paving, retaining and turf for a backyard makeover.
$7,500 - $22,000
Entry door
Price a new front entry door, jamb, hardware and install.
$1,600 - $7,200
/ For tradies
Put one of these on your own website.
Every calculator here is a live demo of Karven Estimate - the embeddable lead-capture calculator. One line of HTML on your site and every quote a customer prices lands in your inbox.