In Mesa, AZ, outdoor living spaces are a way of life. Patios, walkways, and pool decks made from beautiful brick pavers define many homes. But the same sunny climate and occasional monsoon rains that make Arizona so vibrant can also invite two common problems: weeds and mold between your pavers.
Left untreated, these nuisances not only ruin curb appeal but also weaken your paver structure over time. Fortunately, with the right care, you can reclaim your surfaces—and keep them looking flawless for years.
Key Takeaways
- Weeds and mold thrive in unsealed, moisture-retaining paver joints.
- Proper cleaning, joint sand maintenance, and sealing prevent regrowth.
- Professional treatments deliver longer-lasting results than DIY methods.
Why Weeds and Mold Thrive Between Pavers in Mesa
Even in the dry Arizona desert, paver joints trap enough dust, organic matter, and occasional moisture to create perfect conditions for weed seeds and mold spores to flourish.
Common causes include:
- Poor drainage after monsoon rains
- Dust and pollen buildup acting as organic fuel
- Missing or eroded joint sand that leaves gaps for roots to anchor
Without proactive care, these small issues can quickly turn into bigger structural problems—like pavers shifting or joints cracking.
Learn more about how protecting your pavers from damage starts with sealing at our Brick Paver Cleaning and Sealing service page.
How to Treat Weeds Between Pavers
- Manual Removal
For light infestations, pulling weeds by hand is a good start. However, make sure to remove the roots, not just the visible greenery, to prevent regrowth. - Herbicide Application
Apply an eco-friendly, non-toxic herbicide designed for use near hardscapes. Products containing vinegar (acetic acid) or citric acid offer safer options than chemical-heavy weed killers. - Re-sanding and Sealing
The ultimate solution is to re-sand joints with polymeric sand and then seal the pavers. Polymeric sand locks together when wet, creating a barrier that prevents future weed growth.
According to The Spruce, resealing after treating weeds dramatically reduces the chance of them returning.
How to Treat Mold and Mildew Between Pavers
- Gentle Cleaning
Use a solution of water and mild detergent or a 1:10 bleach-water mix for stubborn spots. Gently scrub with a soft brush. Never pressure wash aggressively—it can blow out joint sand. - Improve Drainage
Mold thrives in damp, shady spots. Improving drainage or trimming back nearby vegetation can help dry out problem areas naturally. - Sealing for Prevention
Applying a breathable, penetrating sealer prevents water from soaking into paver joints and blocks mold spores from taking hold. Sealing also enhances color and protects against stains.
Check out our Benefits of Paver Sealing in Phoenix to see how sealing acts as your first line of defense against mold and mildew.
Preventing Future Weed and Mold Growth
- Keep surfaces clean: Sweep patios and driveways regularly to remove dirt and debris.
- Inspect after monsoons: Heavy rains can wash out sand and expose gaps—refill immediately.
- Seal every 3–5 years: Reapplication extends protection and prevents costly repairs.
Bob Vila recommends combining sealing with seasonal cleanings to keep pavers mold-free and pristine.
Why Professional Help Matters in Mesa
DIY weed and mold treatments only go so far if the underlying cause—joint erosion and moisture retention—isn’t addressed. Professional cleaning, sanding, and sealing by Paver Sealing Arizona ensures:
- Deep removal of spores, roots, and seeds
- Use of high-quality polymeric sands
- Proper sealing with UV-stable, breathable products
We also help homeowners in Anthem, AZ and across the Valley restore and protect their outdoor spaces.
If you’re unsure where to start or how bad your weed or mold infestation really is, Contact Paver Sealing Arizona for a free inspection and no-obligation quote.
Reclaim Your Outdoor Living Spaces
In Mesa’s tough desert climate, a little moisture goes a long way toward creating big problems between pavers. Treating weeds and mold properly—and preventing them from coming back—is key to keeping your outdoor areas safe, attractive, and enjoyable.
Call Paver Sealing Arizona today to schedule your consultation. Let’s eliminate weeds, defeat mold, and restore your pavers to the beautiful, durable surfaces they were meant to be.
