MD recommendation - HVAC svc & duct cleaning

[Daria B.]

Can anyone recommend a reliable HVAC company to service (check out system) and possibly do duct cleaning?

My contractor said he would ask the company he deals with but I still have not gotten that contact. 

I searched Angie's List but there are so many that I thought I would try to get a recommendation from and establish actual-used company from an investor.

I will still search Angie's List to see if anything pops

Thanks!