Full list of all 70 PowerWash Simulator achievements. It takes around 50-60 hours to unlock all of the achievements in the base game on Windows.
The base game contains 40 achievements, and there are 3 DLC packs containing 30 achievements.
On the Helter Skelter, complete the objects that have lightbulbs before anything else
Complete the Private Jet laser and anti-gravity parts first
Complete Career Mode
Own the Prime Vista PRO and six of its attachments
Get five gold medals in Challenge Mode
Complete the Fishing Boat bow, steps and main deck first
Completely clean the Ancient Monument using only the white nozzle
Complete the Monster Truck tyres first
Completely clean the Fire Station job without standing on the scaffolding
Complete the sole of the Shoe House last
Complete the Bungalow gutters last
Ride around the Big Wheel with a gnome
Complete the Fire Helicopter blades first
At the Ancient Statue, knock over four buckets
In the Treehouse, complete all of the lanterns first
Completely clean the Carousel without turning it off
Equip a new outfit, gloves and washer modification at the same time
Complete the Fire Truck windows, windscreen and wing mirrors first
Complete the Drill head and tip first
In the Subway Platform, complete the advertising boards first
Get one gold medal in Challenge Mode
Earn 50 Stars Career Mode
Earn 100 Stars in Career Mode
Earn 150 Stars in Career Mode
Earn 5 Stars in Career Mode
Completely clean the Van using only the red nozzle
In the Detached House, complete the Pathway, Driveway and Driveway Edges first
Complete a Bonus Job
At the Fairground, knock over all of the coconuts
In the Playground, roll the football up the stegoslide
In the Back Garden, complete all 12 stepping stones first
In the Skatepark, push the ball out of the bowl
Stand on the Penny Farthing for 10 seconds
Own all cleaning liquids at the same time
Own the Prime Vista 1500 and three of its attachments
Own the UrbanX U2 and four of its attachments
Own the Prime Vista 3000 and five of its attachments
In the Temple, ensure the gnome is on the tower roof once the job is complete
In the Washroom, complete the toilets, toilet seats and toilet lids last
Clean 95% of any job without completing any tasks
Complete the Conch Street job
Complete the Bikini Bottom Bus job
Complete the Krusty Krab job
Complete the Patty Wagon job
Complete the Invisible Boatmobile job
Complete the Mermalair job
In the Conch Street job, complete Patrick's Rock, Rock Hinge and Rock Underside last
In the Krusty Krab job, complete the Chum Bucket first
In the Patty Wagon job, complete the Pickles first
In the Mermalair job, complete Patrick's Identity Card first
Complete the Doc Brown's Van job
Complete the Time Machine job
Complete the Clocktower job
Complete the Holomax Theater job
Complete the Doc's Time Train job
Watch the Time Machine reappear
In the Clocktower job, ring the bell
In the Holomax Theater Job, activate the holographic shark
In the Holomax Theater job, clean the Grid Wall first
In the Doc's Time Train job, clean the Flux Capacitor and its Particle Colliders first
Complete the Land Raider job
Complete the Redemptor Dreadnought job
Complete the Rogal Dorn Battle Tank job
Complete the Imperial Knight Paladin job
Complete the Thunderhawk job
In the Land Raider job, complete the "Ultramarines II" Plaque first
Completely clean the Redemptor Dreadnought using only the yellow nozzle
In the Imperial Knight Paladin job, complete the Tilt Shield and Tilt Shield Purity Seals first
In the Rogal Dorn Battle Tank job, complete the Stowed Shovel first
In the Thunderhawk Job, complete the Retro Thrusters first