concrete patio contractor
Two types of sealers are available for exterior concrete: penetrants or film-formers. Penetrating sealers offer the most protection against moisture absorption. No matter which sealer you use make sure you follow the manufacturer's directions.
It is unrealistic to expect your contractor will match the color of your concrete driveway exactly with a sample from a nearby showroom, a neighbor's decorative concrete drive, or a photograph taken from a brochure. Even plain concrete can have color variations. This is especially true when more than one load of concrete is required or if concrete placements take place on different days. These variations are usually minor and will fade with time.