cost per square foot to seal coat asphalt
Over 31 years, you would spend just a total of $3.00 per square foot to sealcoat your asphalt. That's $0.50 per square foot once every 5 years. The alternative to sealcoating is to let your asphalt degrade until it needs to be repaved. Repaving can cost about $5.00 per square foot.
Over a 15 year period, unsealed asphalt maintenance costs an average of $.98 per square feet. Sealed asphalt cost on average of $.28 per square feet. With a regular program of seal coating You Can Save 243% in Maintenance Costs.