Best Exhaust Fans in Pittsburgh PA

I didn't use them to do the work needed because of how unprofessional and non-responsive they were. Needed to install 2 shut off values, contact Mongiovi because they handle the maintenance of the fire/sprinkler system within my HOA. After 30 days of me reaching out to them (over 6 times calls and emails) to get a technician out to look at the job, to get the actual quote and pricing, they quoted $600 for 2 shut off values. The other 2 quotes were between $150 & $250, so they were charging more than double. Which means they didn't want to do the job or just plain screw me over. Finally got the corrected quote, then one of the sons contacted me after I sent them an email about how poorly they handled this request. I had called the owner Rick twice and he didn't have the common courtesy to call me back. Wouldn't recommend using this company!!!