gilead I worked 7 years as an environmental consultant for one of the 5 biggest federal gov't. contractors.
The industry is riddled with liability and lawsuit issues......competition is heavy...lots of companies bidding unrealistically low (or "buying") commercial contracts. Margins will stay razor thin IMO....and lots of risks of regulatory, legal, and employee issues.
I believe the industry is now in a cycle that a macro economist might call "competitive exclusion"....like the airlines in the late 1980s.
"Our houses are such unwieldy property that we are often imprisoned rather than housed in them." - Henry David Thoreau, Walden: Economy, 1854