What Is a Contractor Lien Release or Subcontractor Lien Waiver?
You need a general contractor - prefereably one who specializes in additions, because you have excavation, waterproofing, concrete, concrete cutting, carpentry, door and window, etc trades to coordinate.
The cost will depend a great deal on your topography around the house - if the base of the window will be above ground level at least 6 inches, then could run about $500 for a legal egress window purchase and about $1000-2000 for installation, depending on how deep into the concrete you have to cut.
If the bottom of the window will be below ground level, then to call it a bedroom (which mandates legal sized second egress and usauully at least one window) then you will have two choices - bring it out into a solid watertight concrete storm cellar with collar to keep water out, stairs, and and weather and bug-tight cellar door that is inward-opening, which means a lot of space for stairs and landings top and bottom, or bring it out into an oversized window well at least 36 inches in diameter, and with steps to ground level, with adequate drainage and waterproofing to keep it dry. Either way, sometimes about as easy to put in an outside door as a window, and might raise property value more. Cost from $2-5,000 depending on how deep into concrete wall you have to dig, whether concrete wsall needs reinforcing with steel frame because of the depth of cut, how easy the digging is, and what your water conditions are near the foundation. The last thing you want to do is create an easy water or vermin ingress with your egress.
Dictated by Federal LAW , you will need a Licensed and EPA Certified HVAC Contractor
to make such repairs . In fact , by law , ONLY A licenesed HVAC contractor can buy or install
said eguipment , NOT A handyman nor general contractor !
YES , You should have an A.C. sleeve surrounding the through the wall unit . These sleeves will usually accompany NEW products , either as a package or an add on equipment purchase.
Contact a Licenesed PROFFESSIONAL at once !
It depends on what type of ramp you need. If it is built out of wood you could look for a carpenter or a deck company. If you are looking for a concrete ramp a mason would be what you are looking for. There are also metal ramps and I believe some medical supply companies may carry them or be able to steer you in the right direction. As for insurance coverage I am not sure. You may have coverage and would be best talking to your agent. Depending on why you need this ramp there may even be programs through your local government or even some of the local charities might help. It might be a project a local Scout Troop might help out on.