We are contacted weekly by homeowners who have decided to hire an unexperienced company to seal their pavers. Sealing pavers is a lot more finicky than sealing a deck or sealing concrete. There are some things that can go wrong, as you’ll see in the pictures below.
Patio and driveway pavers get dirty over time and grow black mold, moss and weeds. Most paver owners think to hire a pressure washing company to clean them or run out to the local hardware store and rent a pressure washer and try to pressure wash the pavers themselves. Pressure washing concrete pavers, especially newer ones, can easily damage the surface finish and we strongly suggest not pressure washing unless you are highly experienced and have the right equipment to pressure wash pavers.
There are many benefits to sealing pavers, but it’s not absolutely necessary. It really depends on your expectations of pavers and how long you would like them to look great. Pavers that aren’t sealed will be more likely to grow weeds in the joints, they will fade and loose their color from wear and UV breakdown, and because most newer paver sealers include an additive that will harden the joint sand it is less likely that you will have settling or shifting caused by joint sand loss.
All that being said, yes you should seal your pavers. Most paver manufactures will tell you that it’s not required to seal your pavers, however, it is highly suggested.
Typically, a customer comes to us requesting to either have their pavers sealed or stabilized with polymeric sand. Rarely does the client know both options exist. So, I wanted to put this informational article to share what the differences are and which is the best for your situation.
In most cases, we prefer to use a joint stabilizing paver sealer over polymeric sand. A joint stabilizing sealer is a liquid product that penetrates into the surface of the concrete paver as well as the sand in the joint giving the paver protection from stains and an enhanced look as well as hardening the sand in the joint. The joint stabilizing sealers come in a natural or matt sheen, enhanced or semi-gloss sheen and a high gloss sheen.
There’s nothing more frustrating than seeing your beautiful paver patio become infested with weeds. Weeds are probably the #1 or #2 biggest concern from potential clients of our new installation division. Because pavers are presented/marketed as an easy installation, they are often installed by DIY’ers or companies with very minimal experience installing pavers. I’ve always said that a paver patio properly installed will have minimal weed growth.