The actual cost to seal your concrete driveway will depend on the type of concrete sealer used, the size of your concrete driveway, and whether or not you will be applying the concrete sealer or hiring a company to apply the concrete sealer for you.
For this example, we are going to take a 1000 square foot driveway and break the cost to seal the concrete driveway down by type of driveway sealer.
Cost to Seal a Concrete Driveway with a Silicate Concrete Driveway Sealer
Silicate concrete sealers penetrate into the surface of the concrete where they chemically react to form calclium silicate hydrate (CSH) within the pores. Silicates are designed to increase the strength and density of the concrete, and reduce deterioration caused by weak concrete and surface abrasion.
Cost to Seal a Concrete Driveway with a Water Repellent Concrete Driveway Sealer
Water repellent concrete sealers penetrate into the concrete where they chemically react to form a water repellent barrier within the pores. Water repellent sealers are designed to reduce deterioration caused by water absorption such as cracking, spalling, freeze thaw and salt damage, mold and mildew, staining, and efflorescence.
Cost to Seal a Concrete Driveway with an Acrylic Concrete Driveway Sealer
Acryilc concrete sealers are designed to enhance and protect concrete with a wet look, low gloss, or high gloss finish. They will leave behind a visible surface film that protects concrete against deterioration caused by water absorption and surface abrasion.
Other Costs to Seal a Concrete Driveway
The above costs include just the cost of the sealer to seal the concrete driveway. While it is very easy and cost effective to seal the driveway yourself, there are many contractors that will apply the sealer for anywhere from $0.75-10.00/square foot depending on the size of the concrete driveway.
Aside from the initital cost, you want to take into consideration resealing. Penetrating sealers can provide years of protection, while acrylic sealers need to be recoated every 2-5 years. If you are looking for the most cost effective sealer for your concrete driveway, and want to get the most protection money can buy, a Silane-Siloxane or Siliconate water repellent sealer is the best sealer you can purchase at the lowest cost per square foot.