Best Chimney Waterproofing Lakewood Homeowners Trust in 2024

By Brandon Lin Chimney Inc Team · Updated August 22, 2026

For Lakewood homes, the best chimney waterproofing products combine siloxane-based formulas with UV resistance and breathability to handle our wet springs and snowy winters. Top picks include ChimneySaver Waterproofing Stain and SaverSystems Siloxane PDMS for masonry protection without trapping moisture inside. Always pair waterproofing with a Level 1 chimney inspection to catch cracks before sealing.

1. Why Lakewood chimneys need waterproofing more than ever

Lakewood’s climate swings from heavy spring rains to freezing winters, making masonry chimneys especially vulnerable. Lakewood, CO averages 18 inches of precipitation annually, and older brickwork absorbs water like a sponge. Once moisture freezes, it expands and cracks joints, leading to leaks, efflorescence (those white salt streaks), and even structural failure. A chimney inspection is the only way to spot these issues early, but waterproofing creates a breathable barrier that repels water without sealing in existing dampness. Think of it as insurance against a $5,000+ rebuild down the road. If your chimney is over 15 years old or shows hairline cracks near the crown, schedule a free estimate before winter sets in.

2. What a chimney waterproofing product must do in Lakewood’s climate

A chimney waterproofing product must be siloxane- or silane-based to bond with masonry and repel water without forming a plastic film that traps moisture inside. It should also be breathable, UV-resistant, and rated for freeze-thaw cycles—common in Lakewood’s 200+ annual freeze days. Avoid cheap acrylic sealers; they peel and trap moisture, accelerating deterioration. Look for products tested to ASTM C67 and labeled for masonry chimneys. For DIYers, ChimneySaver Waterproofing Stain is a local favorite, while pros often use SaverSystems Siloxane PDMS for its durability and warrantied coverage. Always test a small area first to check for discoloration.

3. Top 5 best chimney waterproofing products for Lakewood homes in 2024

1. **ChimneySaver Waterproofing Stain** – A breathable, siloxane-based stain that repels water and resists UV fading. Ideal for Lakewood’s older brick stock and available in multiple colors. Expect $35–$55 per gallon and 200–300 sq ft coverage per gallon. 2. **SaverSystems Siloxane PDMS** – A professional-grade penetrating sealer that bonds deeply into masonry. Used by many licensed chimney sweeps in Lakewood for its 10-year+ durability and warrantied performance. 3. **Thompson’s WaterSeal Heavy Duty Waterproofer** – Budget-friendly option ($25–$40 per gallon) for minor repairs, but reapply every 2–3 years in Lakewood’s climate. 4. **MasonryDefender Chimney & Masonry Sealer** – Zero-VOC, breathable formula safe for historic Lakewood homes. 5. **RainBlock Clear Masonry Sealer** – Clear, non-yellowing option for homeowners who want to preserve brick appearance. Always pair application with a chimney cap installation to prevent future water entry.

3. Should you DIY or hire a Lakewood pro for waterproofing?

DIY waterproofing is tempting, but Lakewood’s elevation (5,678 ft) and seasonal extremes demand precision. A pro will pressure-wash the chimney, repair cracks with Lakewood-approved tuckpointing, and apply sealer evenly—critical for breathability. Mistakes like over-application or skipping prep can trap moisture and worsen damage. Expect to pay $300–$600 for professional waterproofing in Lakewood, including a Level 1 inspection. If your chimney has spalling bricks or a damaged crown, repairs may cost $800–$2,500. For peace of mind, choose a licensed and insured chimney sweep in Lakewood.

4. The right time to waterproof your Lakewood chimney

The best window is late spring or early summer, after the freeze-thaw cycle but before monsoon season. Avoid winter—sealer won’t bond properly to cold, damp masonry. If you’re burning wood this winter, waterproofing in fall is acceptable if temperatures stay above 50°F during application. Never waterproof a chimney with active leaks; fix the source first with Lakewood chimney repairs. Schedule a free estimate to assess your chimney’s condition before committing. Pro tip: Ask your sweep about pairing waterproofing with a chimney cap—it’s the cheapest way to prevent future water damage.

5. How to prep your Lakewood chimney for waterproofing like a pro

Start with a Level 1 chimney inspection to identify cracks, missing mortar, or a damaged crown. Clean the chimney with a wire brush and pressure washer (use 1,500 PSI max to avoid damaging brick). Let it dry completely—Lakewood’s humidity can delay curing. Mask off the roof and siding to avoid overspray. Apply sealer with a pump sprayer or brush in thin, even coats, working from top to bottom. Allow 24–48 hours to cure before exposing to rain. For DIYers, ChimneySaver’s guide offers step-by-step videos tailored to Colorado homes.

6. Warning signs your Lakewood chimney needs waterproofing NOW

Spotting these early can save you thousands. First, check for white efflorescence (salt deposits) on bricks—it means water is evaporating through the masonry. Next, look for crumbling mortar joints or a cracked crown; these are entry points for moisture. Inside, a musty smell in your fireplace room suggests water intrusion. Finally, if your chimney leans slightly or bricks feel soft, water has already caused structural damage. Don’t wait for leaks—schedule a free estimate if you see any of these signs. The Chimney Safety Institute of America recommends addressing water issues before winter to prevent freeze-thaw damage.

7. Lakewood-specific tips to extend your waterproofing’s lifespan

Lakewood’s altitude and seasonal swings shorten sealer lifespan. Reapply every 3–5 years for siloxane-based products, or 2–3 years for acrylic sealers. Inspect the chimney after heavy storms—our monsoon rains can dislodge caps or loosen flashing. Keep gutters clean to prevent water from cascading down the chimney. If you burn wood, use EPA-certified appliances to reduce creosote buildup, which can trap moisture against the flue. For historic homes in Belmar or Villa Park, consider a breathable lime-based sealer instead of modern silicones. Always document application dates to track maintenance cycles.

8. How to choose the best waterproofing product for YOUR Lakewood home

Start by assessing your chimney’s material: clay tiles, brick, or stone. Brick and stone benefit from siloxane sealers like ChimneySaver or SaverSystems, while clay tiles may need a flexible membrane under the sealer. Next, consider color—do you want to enhance the brick’s natural tone or match a historic aesthetic? Budget for reapplication every few years, especially in Lakewood’s climate. Finally, check warranties; professional-grade sealers often include 5–10 year coverage. If unsure, ask your Lakewood chimney sweep for a product recommendation tailored to your home’s age and exposure.

Frequently Asked Questions