The setup: Air conditioning is great, but air conditioner condensers are ugly. Up your curb appeal quotient by hiding your AC condenser or heat pump unit with a simple screen. Specs and costs: An AC screen is typically three-sided, about 40 inches high, and freestanding — you’ll want to be able to move it easily when it comes time to service your HVAC. For about $100, you can make a screen yourself using weather-resistant cedar or pressure-treated wood to build three frames, and filling each frame with plastic or pressure-treated lattice. Or, buy pre-made fencing panels. A 38-inch-by-38-inch plastic fencing panel is about $50. Tools: Hammer; saw; cordless drill/driver; measuring tape; galvanized wood screws. Time: Build it yourself in four to six hours. Install pre-made fencing in one to two hours.