Roads go quick. Be prepared for lots of call backs though, etc. Every little old retired lady has nothing to do during a snow fall once they are done with their daily Dr's appointment, all they then do is worry if the ambulance can get there.
I have one, 63unit 55 and over community. Best account i have. We provide excellent service and thats what they want. Our bid was the second highest and they switched to us. This year i incresed price and locked em down for two years. Simplest billing method: price out your lawn and snow services plus incidentals like fert, hedge trimming,mulching etc... then add together and divide by 12, you get a check every month like clockwork. You do good work and they dont have any excuses to complain. We dont use trucks on the drives b/c its a tight community and snow piled on the aprons is no good. Thats what last comp did. Now we use a asv rc100 w/ boss 9' blade with wings drag all drives out to street then run piles to designated areas. Do a chunk of drives then clear the streets alongg with your piles. If its a heavy snow fall then we use an 84" hydro blower on the asv for the drives to blow snow on the lawns. The drives are avg. 18' long by 2 or 2.5 wide and there is 6/10ths of a mile of street along with two small 4 car parking areas for guest/mail pavilion. My quickest time this winter was 1.75hrs start to finish drives and streets solo in the asv. My bro then came in and salted the streets after i was done
Get some type of containment blade, they will complain about windrowing onto their drives. Designate areas to pile snow if possible. As for pricing salt i just measured width of roads then mult by lentgh to get sq fottage, then used avg of 800-1k lbs per acre (use heavier app for preventing, and around corners and known ice buildup areas i.e. piles that melt and runoff) then add in labor