Hold off Sealing Your Brick Pavers until Spring

Proper conditions for sealing brick pavers is important

It's now Fall in Michigan and you should hold off sealing your brick paver patio, walkway, porch, steps, or driveway until next Spring.  Sealing pavers is tricky enough and trying to force the issue this time of year may result in costly and aggravating results. Believe me when I say it will be worth the wait if anything went wrong.

Even if the weather is dry enough for sealing, low temperatures & moisture in the paver joints can have an adverse effect on the performance of brick paver sealants.   White clouding, residue, or hazing can result from sealing in non-optimal conditions.  In Michigan, it is best to seal in surface & air temperatures between 60-75 degrees.

If the air or brick paver surface is too cold, the brick paver sealant may crystallize or turn white, leaving you with a costly and timely effort to correct. If the paver joints are too moist (wet), it can leave white lines in the paver joints and on the edges of the paving stones.

Another issue late in the Fall is LEAVES!  If you avoid them from leaving any leaf stains after fall rains, it is treacherous to avoid any from falling on freshly sealed pavers.  Usually most brick paver sealants are dry to the touch within an hour, but if leaves fall and lay flat on the paving stone surface during this curing time, this will usually result in a problem. 

During the Summer if the air or brick paver surface is too hot, usually over 80 degrees, you can experience blistering (bubbles) or have a white haze trap under the paver sealant.  High humidity days are also a no no and very windy days can adversely dry sealant prematurely creating blistering. Again if you force the issue, you will spend alot of time, cost, and effort trying to correct these adverse conditions.

As a brick paver sealing contractor, there is a small window of months in a Michigan season to perform this service.  When you add in days of rain, heat, excessive winds, and unseasonably cold days, you can see the frustration of completing this paver maintenance service each year. 

Our peak paver sealing season is usually mid-May to early July, then we get another stretch from Labor Day to mid October.  I do recommend that you go ahead and complete the power wash cleaning of the brick pavers and paver joints and re-sanding of all the joints prior to Winter.  When Spring comes around, you will only need to touch up the paver joints with sand and then get ready to seal when temps allow.

As always, only use an approved brick paver sealant on your brick pavers.  Anything at Lowes, Home Depot, Menards, or a Hardware store is NOT the correct product.  Always purchase or insist on a paver sealant that is distributed by a brick paver manufacturer. These sealers will typically last for 2-3 years before you will need to consider having another application.


Ask your brick paver contractor which paver sealant he is using and ask that he write down the brand of sealant or leave the empty container (properly sealed up) behind.  This way you can use the same brick paver sealant for future applications. Make sure prior to sealing that all paving stones and paver joints are dry.

Prep work IS necessary for Sealing Brick Pavers

Brick Paver Sealing

I am amazed by the number of potential brick paver sealing clients who do not think it is necessary to prepare their paver patio, walkway, driveway, etc.. for sealing.  Preparation of the paving stone surface & paver joints is a must for the proper performance and appearance of paver sealant.

Each week I do a brick paver sealing estimate where the homeowner just wants me to apply the proper paver sealant to their brick pavers.  Most times the paving stones exhibit dirt, moss, mold, and stains that need to be addressed. More so, the paver joints need to be filled with paver joint sand and have dirt,moss, weeds, and grass removed prior to sealing their paver patio or walk.  Paver Driveways are a given for extensive prep work to allow for sealing.

The average cost of sealing brick paver patios in Ann Arbor & Saline is @ $1.00/ sq.ft plus the cost of prep work. Price breaks usually start after 1000 sq.ft and for driveways.  The cost of prep work depends on the severity of the condition of the paving stones & paver joints. Just for an easy example, a  400-450 sq.ft ground level paver patio with a couple of steps into doorwall, may cost $650-750 for general power washing, sanding of paver joints, and sealed with an approved brick paver sealant.  Severe paving stone & paver joint cleaning may increase this price range.  Brick paver repair to sunken or settled areas are also an extra cost.  Most of our brick paver patio restorations this year are running in the $600-900 range when you factor in touch-up repairs.

The only exception for applying a brick paver sealant without performing some extensive prep work would be when a paver patio, walkway, driveway, or etc.. was installed about 3 months earlier and the above mentioned foreign substances are not present.  Paver joints may still need some touch ups. Remember that most brick paver manufacturers recommend waiting 60-90 days after installation to allow any efflorescence to exit the paving stones.

The paver manufacturers have a few steps & cleaners of prepping for sealing that is not always necessary, but the minimum amount of prep work is a general power washing of the paving stones & paver joints.  If weeds, grass, mold, & moss are present, a more aggressive power washing will be necessary. After the brick pavers & paver joints dry, an approved paver joint sand needs to be swept in all joints.  Polymeric sand is NOT necessary to use if sealing your brick pavers and actually is discouraged from doing by polymeric sand manufacturers.

After the paver joint sand is carefully swept in all joints, touched up with a wisk broom in tight areas, and blown off the top of the paving stones with a leaf blower, the brick paver sealant can be applied.  An earlier post I had on brick paver sealing methods explains the pros & cons of different methods. 

To insure great performance & appearance from sealing pavers, the prep work must be done to make sure the paving stones & paver joint's appearance is enhanced by the sealant.  Sealing brick pavers is not cheap, and some prep work is necessary to make sure you get the results you are looking to get from your interlocking pavers.