Mix pumpkins and plumbing, and you'll end up with a plumbing bill.  Learn why. Get advice on pest control, including how to keep rodents from taking shelter in your home. Get tips on cellulose insulation from Tom Silva, the general contractor on This Old House. Plus get answer to your home improvement questions about, repairing window screens, fixing cracks in the Sheetrock walls, insulating a crawl space, repairing crumbling stairs, leveling a garage floor, humidifiers and indoor air quality, granite countertops and avoiding stains on them, and replacement windows.