Bestekmall offers the Bestek 740-joule 6-Outlet Surge Protector Block Mount in Black or White for $18.75. Coupon code "FORPRO60" cuts that to $7.50. With free shipping, that's the lowest price we could find by $2. It features six outlets, coaxial cable protection, and spike-rated for a maximum of 20,000 amps.
You don't need to hire a contractor or do extensive renovations to add value to your home.