Ask Your Question

Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List.

 
 
or
Submit
Top 30 Days Experts
Rank Leader Points*
1 kstreett 240
2 Guest_9020487 110
3 Guest_9190926 105
4 GoldenKid 100
5 ahowell 95
6 KnowledgeBase 95
7 skbloom 80
8 Guest_98024861 70
9 Guest_9311297 70
10 Guest_9400529 70

*Updates every 4 hours

Browse Projects By Category

Question DetailsAsked on 3/22/2017

how much should it cost to pressure wash 11,615 square feet of concrete and remove gum and graffiti

how much time chemicals involved,

Do you have the same question? Follow this Question


1 Answer

0
Votes

Commonly about $0.15-0.25/SF for large areas like that assuming this is within reach of the ground (no lift needed, so within about 7 feet or ground if lap siding (so man on ground doesnot spray up under it), or within about 10 feet of ground if concrete/stucco or similar surface. - but that assumes the grafitti will comes off with power washing and is sporadic - not heavy coverage like a grafitti wall or a bridge abutment which is the local tagging spot, which can run over $1/SF and commonly involves use of solvents and/or sandblasting (at more like $0.50-1.50/SF) as well. Which is why many government and commercial owners have changed from cleaning (unless using people doing court-ordered community service) to overspraying grafitti with a cementatious paint or just plain acrylic latex gray paint, at typically around $0.25-0.40/SF for large areas.


This assumes there are not environmental cleanup regs - in some areas (like CA) this sort of cleaning now requires containment and treatment of the water (or sand) because it contains hazardous materials in the paint - which can push the cost per SF to well over $1 wioth water or dry ice and over $2/SF with sandblasting.

Answered 1 year ago by LCD




Related Questions


Terms Of Use
|
Privacy Policy