Overall, Kilz original (oil-based) stops everything.Also - don't forget duct work if it was already present.

They are not cheap to replace though, usually covered in asbestos, must be taking out in pieces and extensive if not all new ductwork installed.

If I could replace electric BB with forced heat/central AC including ductwork for $10k, I would do it all the time.

(Street Address: _) and consisting of _3 BR & 1.5 baths, Conventional styled house ____________ upon the following TERMS and CONDITIONS:A.Remodeling/ repairs to kitchen (including and not limited to cabinets, floor, walls and plumbing) are the sole responsibility of Lessee.B.Installation/ repairs to heating and air system (including and not limited to duct work, vents, filters and furnace) are the sole responsibility of Lessee.C.All installation, maintenance, repairs and alterations to premise are the sole responsibility of Lessee.D.If Lessee chooses not to exercise option to purchase, all installation, maintenance, repair and alteration projects must be completed before lease expiration. 1.

Kitchen and bath wet areas.Flushing areas.Window and door seals.Around all penetrations (hose, faucets, duct work from vents, fireplace and chimney vents).Vinyl, aluminum or wood siding.Stucco or mortar cracks.Interior settling or shrinkage sheetrock cracks.If you have a basement and it has a sump pump, check to make sure it is operating properly, clean the pump screen and remove any soil buildup from the well.Clean and repair gutters.

HE would have had to run all new duct work through the garage and fircode it all and such. 

It has no ventilation or ductwork in it.

We also had an all new, high-efficiency HVAC system installed (2 furnaces, 2 AC's, all new ductwork, too) to replace the old boiler/radiators.

it depends on what type of units they are replacing how accessible it is ,any duct work etc are they carting away your old units What is the difference in price between buying online and going local ?

It has exposed ductwork and trusses.... like a cool NYC style loft.