Ridgetop
Herd Master
In the case of an infestation like you seem to have, a cat seems to be the next step.
Our first house was falling down when we bought it 50 years ago. Two story, built in 1900, it had been rented out for years. There were broken windows surrounded by orange trees in the back upstairs bedroom. Holes in the floorboards and old plaster walls gave access to mice and rats to get inside and circulate through the walls, ceilings, etc. After 6 months of listening to feet patter in the walls and overhead all night we got a cat and turned it loose in that room. She went through a hole in the floorboards and we didn't see her again for over a month. I kept her water bowl filled every day so I knew she was still there somewhere. While we couldn't see her, we could hear her on the job. Such thumping and banging around you never heard!! Lasted for several months then nothing but pitiful meowing. She had caught all the mice, rats, and squirrels that had been living in the house and got hungry! She was sleek and sassy, and after that she needed to be fed, but the house was vermin free until she disappeared about 5 years later. We lived on a busy road then so she was possibly hit by a car, but she was a marvelous mouser. By the time she disappeared we had renovated and sealed the house but still kept a couple of indoor/outdoor cats. We brought our cat with us when we moved to this house. She was an indoor/outdoor cat and she had several litters of kittens, then we switched to barn cats when DD1 developed an allergy to cats and rabbits. The children used to hint for the nests of newborn kittens in the barn and garage. They kept the place free of vermin. Now we use sticky traps because everyone is spaying and neutering their cats and there are no people standing in front of the grocery store with cardboard boxes of kittens to give away.
My kids would come home with several kittens at a time - extra kittens were always welcome here. Between the rabbits, chickens, and dairy goats there was always plenty of dropped feed for rats and mice to eat. The cats fed on them. Ah, the circle of life. 
Yep, @Bruce is right, you need a cat.
Our first house was falling down when we bought it 50 years ago. Two story, built in 1900, it had been rented out for years. There were broken windows surrounded by orange trees in the back upstairs bedroom. Holes in the floorboards and old plaster walls gave access to mice and rats to get inside and circulate through the walls, ceilings, etc. After 6 months of listening to feet patter in the walls and overhead all night we got a cat and turned it loose in that room. She went through a hole in the floorboards and we didn't see her again for over a month. I kept her water bowl filled every day so I knew she was still there somewhere. While we couldn't see her, we could hear her on the job. Such thumping and banging around you never heard!! Lasted for several months then nothing but pitiful meowing. She had caught all the mice, rats, and squirrels that had been living in the house and got hungry! She was sleek and sassy, and after that she needed to be fed, but the house was vermin free until she disappeared about 5 years later. We lived on a busy road then so she was possibly hit by a car, but she was a marvelous mouser. By the time she disappeared we had renovated and sealed the house but still kept a couple of indoor/outdoor cats. We brought our cat with us when we moved to this house. She was an indoor/outdoor cat and she had several litters of kittens, then we switched to barn cats when DD1 developed an allergy to cats and rabbits. The children used to hint for the nests of newborn kittens in the barn and garage. They kept the place free of vermin. Now we use sticky traps because everyone is spaying and neutering their cats and there are no people standing in front of the grocery store with cardboard boxes of kittens to give away.
Yep, @Bruce is right, you need a cat.