Before tinted windows, homes were kept cool via giant baseball caps and the icy breath of the Abominable Snowman’s ghost. Cool down your unhaunted house with today’s Groupon: for $49, you get $150 worth of residential and commercial window-tinting services from Eco Tint and Shade. This Groupon is valid for homes and businesses in San Diego County and South Orange County.

Eco Tint and Shade blankets residential and commercial windows with protective energy-saving tinting that reduces heat absorption and minimizes glare. After a complimentary consultation, a team of skilled installers will redecorate panes with a fresh sheet of sun-filtering film, which can screen out up to 99.9% of the UV rays that cause carpet, furniture, and cabinet damage while blocking out 100% of nosy neighbors. The subtle film allows plenty of natural light to enter homes so eyes can enjoy clear, unobstructed views, and tinting is safe for all types of glazing systems, including clear, tinted, low-e, and coated glass. Though prices vary depending on the size and type of film, Eco Tint and Shade can cover a 3’x5’ window in Vista standard film for $90, a 3’x5’ window in Vista ceramic film for $120, and a 6’x7’ door in Suntek reflective film for $252. Tinted windows can also help lower energy bills, earn homeowners a 10% tax credit on the cost of window film (up to a $500), and make watching grass grow a less squinty experience.