You are admiring your home’s beautiful brick exterior on a crisp autumn morning when you notice something unsettling, a small crack in the mortar, a patch of white powder on the surface, or perhaps a section where the brick face has started to flake away. What seems like a minor cosmetic issue today could become a structural nightmare tomorrow, especially in Atlantic Canada’s punishing climate.
Brick is one of the most durable building materials available, renowned for its strength and timeless appeal. However, in Fredericton and surrounding areas, your brickwork faces a relentless opponent: the region’s extreme freeze-thaw cycles, heavy rainfall, and high humidity. Water seeps into tiny cracks, freezes, expands, and gradually tears your brick apart from the inside out. Without proper maintenance, what should last generations can deteriorate in just a few decades.
Here’s the encouraging news: proactive exterior brick maintenance can extend your masonry’s lifespan by 15 to 20 years, potentially pushing it beyond 50 years of reliable service. The difference between a $500 repointing job today and a $15,000 structural rebuild tomorrow often comes down to catching problems early.
At Atlantic Brick and Stone, we have spent over 15 years helping homeowners and commercial property owners in Fredericton protect their masonry investments. In this guide, you’ll discover the essential maintenance practices that separate thriving masonry from crumbling facades, from conducting thorough inspections and choosing the right cleaning methods to knowing when professional repointing becomes necessary.
Atlantic Canada’s climate is particularly harsh on masonry structures. The region’s frequent freeze-thaw cycles create a relentless assault on brick and mortar that property owners in milder climates rarely experience. When water penetrates even hairline cracks in your brickwork and temperatures drop below freezing, that water expands by approximately 9%, acting like a tiny wedge that widens cracks and causes the brick face to pop off in a process called spalling. This cycle can repeat dozens of times each winter, accelerating deterioration exponentially.
Heavy rainfall and persistent humidity compound these challenges. Fredericton receives substantial precipitation throughout the year, and when moisture saturates mortar joints, it weakens the bond between bricks. Over time, this leads to:
Mortar crumbling and gaps forming
Water infiltrating deeper into the wall cavity
Interior damage and compromised insulation
Conditions for mold growth
UV exposure adds another layer of stress, particularly on south-facing walls where intense sunlight breaks down the chemical bonds in mortar, causing it to become brittle and powdery.
The financial implications of neglecting brick maintenance are substantial. A small repointing project addressing a few deteriorated joints might cost a few hundred dollars. However, if that minor issue progresses to structural instability, water damage, or complete facade failure, you’re looking at repair bills in the tens of thousands. Regular maintenance isn’t an expense, it’s an investment that protects your property value and prevents catastrophic failures.
Beyond structural concerns, well-maintained brickwork significantly improves curb appeal and property value. Crumbling mortar, stained surfaces, and spalling bricks send a clear message to potential buyers or tenants: this property hasn’t been cared for. Conversely, clean, properly pointed brick with intact mortar joints signals quality and attention to detail. High-quality brick with proper upkeep and sealing can last over 50 years, and sealed brick reduces maintenance demands by approximately 75%, making it a smart long-term strategy for any property owner in Atlantic Canada.
Establishing a regular inspection schedule is your first line of defense against costly masonry repairs. For residential properties, inspect twice yearly, once in spring after the freeze-thaw cycle, and again in fall before winter. Commercial buildings should increase this to quarterly. Always inspect after severe weather events like heavy storms or prolonged freezing periods.
During your inspection, focus on several critical areas. Start by examining mortar joints closely. Look for:
Crumbling edges or delamination where mortar is breaking away
Gaps where mortar has fallen out entirely
Receding mortar sitting noticeably deeper than the brick surface
If you can easily scrape mortar away with a fingernail or screwdriver, the joints are failing and need professional attention.
Next, assess crack patterns and severity. Hairline cracks under 1/8 inch are usually manageable, but wider cracks following a stair-step pattern indicate structural movement requiring immediate evaluation. Horizontal cracks near the foundation or vertical cracks running through multiple bricks suggest serious structural issues.
Water damage manifests in several ways: persistent damp spots, dark discolouration near the base of walls, moss and mildew growth, or white powdery deposits called efflorescence, all clear signs of excessive moisture problems that need addressing.
While property owners can identify many issues, only licensed masonry contractors can properly diagnose complex problems. At Atlantic Brick and Stone, our pre-repair evaluations go beyond surface observations to identify root causes, assess structural integrity, and design comprehensive solutions.
Proper cleaning removes harmful substances while preserving the brick’s protective surface layer. Always start with the gentlest method and escalate only if necessary. For everyday dirt and grime, mix mild dish soap with warm water and scrub with a nylon-bristle brush (never wire brushes, which scratch the surface and leave rust-causing metal particles). Work in small sections and rinse thoroughly.
Biological growth like algae, moss, and mildew responds well to equal parts white vinegar and water. Apply generously, let sit for 30 minutes, scrub, and rinse. For stubborn growth, use one part household bleach to four parts water. Pre-wet the bricks first, wear protective gloves and eyewear, and rinse thoroughly after scrubbing.
Efflorescence can be brushed away with a dry, stiff-bristled brush, but the white deposits will return unless you address the underlying moisture problem through improved drainage, crack sealing, or a breathable sealer. Persistent deposits may respond to a diluted vinegar solution.
Pressure washing can be effective but requires care. Key guidelines include:
Never exceed 1,500 PSI
Use a 40-degree wide-angle tip
Hold the wand at 45 degrees and move top to bottom
Never spray directly into mortar joints or around windows and doors
High pressure can dislodge mortar or force water deep into the wall cavity.
Muriatic acid is a last resort for rust stains or stubborn mortar smears. Always add acid to water (never the reverse) at a ratio of one part acid to ten parts water. Apply with a brush, let it work briefly, then rinse and neutralize with a baking soda and water mixture. Improper use can permanently damage the brick’s protective surface, so consider hiring professionals.
For historic structures or stubborn staining, Atlantic Brick and Stone offers professional cleaning services that protect your masonry’s integrity while delivering superior results.
Mortar serves as the sacrificial component in brick masonry, intentionally softer than the brick itself to absorb stress, accommodate movement, and weather over time. When mortar deteriorates, it compromises structural integrity and creates pathways for water infiltration that cause extensive damage.
Several factors affect mortar longevity. Climate plays the dominant role, with freeze-thaw cycles causing the most rapid deterioration. Wall orientation and initial installation quality also matter significantly.
Recognizing when repointing becomes necessary prevents minor issues from becoming structural emergencies:
Mortar that scrapes away easily with a fingernail or screwdriver indicates failing joints
Gaps deeper than 1/4 inch allow water penetration and require immediate attention
Crumbling texture or visible cracks signal that repointing is overdue
Atlantic Brick and Stone’s brick repointing process begins with careful removal of deteriorated mortar to the proper depth without damaging surrounding bricks. We then mix mortar with correct ratios matching the original composition. For historic buildings in Fredericton, this often means using lime-based mortars rather than modern Portland cement, as harder mortar can cause softer bricks to crack under stress.
Each joint is properly filled, compacted, and tooled to match the original profile, with sections cured in stages to ensure lasting stability. Properly executed repointing reinforces walls, improves durability, and can make aging masonry look nearly new.
Our brick chimney repointing services address the specific challenges chimneys face. Exposed to weather from all sides and subjected to temperature extremes, chimney mortar deteriorates faster than wall mortar. We ensure chimneys remain safe and functional by addressing cracks before they compromise structural integrity or allow dangerous gases to escape.
Proper sealing is one of the most impactful interventions you can make for your brick’s longevity. Research shows that sealing brick at installation or shortly after can extend its functional lifespan by 15 to 20 years, effectively doubling it compared to unsealed brick.
Atlantic Brick and Stone’s commercial-grade sealing services protect brick steps, stone veneer, and retaining walls. Our sealers provide longer-lasting protection than consumer-grade products, creating an invisible barrier that reduces water absorption while maintaining the brick’s natural appearance and breathability.
The type of sealer you choose is critical. Use breathable sealers, specifically silane-siloxane penetrating sealers that chemically bond with the masonry, allowing water vapour to escape while preventing liquid water from entering. Non-breathable film-forming sealants like polyurethane or acrylic trap moisture inside, which can cause catastrophic spalling when that moisture freezes or tries to evaporate.
The benefits of proper sealing include:
Significant reduction in water absorption, protecting against freeze-thaw damage
Stunted moss, algae, and weed growth by eliminating the moisture these organisms need
Reduced maintenance demands by approximately 75%, meaning fewer repairs over the brick’s lifetime
Sealing alone isn’t sufficient if underlying drainage issues exist. Gutters and downspouts should direct water at least six feet from the foundation, and the ground should slope away from brick walls to prevent wicking. Atlantic Brick and Stone evaluates and corrects drainage issues during restoration projects.
Our weather-resistant caulking services provide an additional layer of protection, applying flexible exterior-grade caulk around window and door frames to prevent water intrusion at these vulnerable transition points.
Understanding the freeze-thaw mechanism helps explain why winter protection is so critical. When water enters a crack and temperatures drop below freezing, it expands by approximately 9%, acting like a wedge. When the ice melts, the crack remains slightly larger than before. Over dozens of cycles each winter, this progressively destroys brick from within.
Atlantic Brick and Stone’s winterization services identify vulnerabilities before the first deep freeze. We inspect for cracks in mortar joints, areas of water accumulation, and other weak points, then apply protective measures including sealing cracks, repointing deteriorated joints, applying breathable sealers, and confirming proper drainage.
Timing is everything. Winterization must be completed in late autumn when temperatures are still consistently above freezing, allowing sealers and mortar to cure properly. Waiting until winter has begun means repairs may not cure correctly and existing damage will worsen.
De-icing products pose a significant threat that many property owners underestimate. Rock salt is highly corrosive to brick and mortar, and when absorbed into porous masonry it crystallizes and causes surfaces to flake away. Safer alternatives include calcium magnesium acetate (CMA) or sand for traction without chemical damage.
Snow removal technique also matters. Avoid metal-edged shovels that can chip brick surfaces, and pile snow away from walls to prevent prolonged moisture contact. Finally, confirm downspouts are extended, gutters are clear, and the ground slopes away from your building before the first freeze to prevent water pooling against your masonry.
While climbing vines like ivy create a romantic, historic appearance on brick buildings, they’re actually quite damaging to masonry. The rootlets these plants use to climb penetrate mortar joints, widening cracks and creating pathways for water infiltration. As the vines grow heavier, they can pull mortar out entirely. The dense foliage traps moisture against the brick surface, preventing it from drying out after rain and creating ideal conditions for biological growth and accelerated deterioration.
If you have climbing vines on your brick, periodic trimming or complete removal allows the brick to breathe and dry out properly. After removing established vines, you’ll likely need professional repointing to repair the damage left behind. The aesthetic appeal of climbing plants simply isn’t worth the structural damage they cause over time.
Maintain adequate space between shrubbery and brick walls. Dense foliage prevents sunlight and wind from reaching the brick surface, leading to chronic dampness. This perpetual moisture encourages moss and mildew growth while preventing the natural drying that keeps masonry healthy. A minimum clearance of 12 to 18 inches between plants and brick walls allows for proper airflow and sunlight exposure.
Proper grading around your building is a landscape factor that directly impacts masonry health. The ground should slope away from brick walls at a minimum grade of 6 inches over 10 feet. This confirms rainwater and snowmelt flow away from the foundation rather than pooling against it. Poor grading allows water to saturate the lower brick courses, leading to rising damp, efflorescence, and accelerated deterioration of both brick and mortar.
During restoration projects, Atlantic Brick and Stone evaluates and addresses drainage issues near foundations and retaining walls. Sometimes the approach involves regrading, installing French drains, or creating swales to redirect water flow. These landscape modifications work in concert with masonry repairs to create comprehensive, long-lasting results.
Certain situations demand professional assessment. If you notice significant bulging, leaning, or large through-wall cracks, these indicate serious structural issues requiring immediate evaluation. These problems often stem from foundation movement, failed wall ties, or soil settlement, issues that worsen rapidly if ignored. DIY repairs on structural problems can be dangerous and may mask symptoms without addressing root causes.
Mortar deterioration beyond surface crumbling requires professional repointing. Improper mortar mixing or application can accelerate deterioration. Professional masons understand the importance of matching mortar strength to existing brick and applying techniques that confirm lasting bonds.
Water infiltration or persistent dampness signals problems beyond what you can see. Water may enter through failed flashing, compromised mortar joints, or poor drainage. Professionals have the diagnostic tools to trace water to its source and design comprehensive solutions addressing both symptoms and causes.
Historic structures requiring lime-based mortars demand expert knowledge. Using modern Portland cement on historic brick can cause irreversible damage. Atlantic Brick and Stone’s expertise confirms repairs honour original construction methods while meeting modern performance standards.
Chimney damage should never be addressed with DIY repairs. Compromised mortar can allow dangerous combustion gases to escape into living spaces. Professional repointing confirms your chimney remains safe and efficient.
Atlantic Brick and Stone’s 15 years of experience brings quality craftsmanship to every project. Our services include:
Brick restoration for historic and modern structures
Concrete repair for spalling and erosion
Professional evaluations by licensed, bonded, and insured contractors
Detailed assessments that identify root causes rather than just treating symptoms
The cost of regular professional maintenance is a fraction of full masonry rebuild costs. A $2,000 repointing project today might prevent a $25,000 structural repair in five years. We stand behind our work with clear warranties, giving you confidence your investment is protected.
Exterior brick maintenance is fundamentally an investment in your property’s value, structural integrity, and aesthetic appeal. In Atlantic Canada’s challenging climate, proactive care isn’t optional, it’s essential for preventing minor issues from escalating into costly structural repairs. The difference between brick that lasts 25 years and brick that serves reliably for over 50 years comes down to consistent maintenance, timely professional intervention, and proper moisture management.
The three pillars of brick longevity work together synergistically:
Regular inspection catches problems early when they’re still manageable and inexpensive to fix
Timely professional intervention by experienced masons confirms repairs are done correctly the first time, using appropriate materials and techniques
Proper moisture management through sealing, drainage improvements, and weather-resistant caulking prevents the water infiltration that causes most masonry damage
Remember that properly maintained and sealed brick can last over 50 years, providing decades of reliable service while maintaining its aesthetic appeal. The 75% reduction in maintenance demands that sealing provides means you’ll spend less time and money on upkeep while enjoying better protection.
Atlantic Brick and Stone stands ready as Fredericton’s trusted partner for all your masonry needs. Whether you’re experiencing mortar deterioration, noticing water damage, or concerned about structural issues, our team brings over 15 years of experience and a commitment to quality craftsmanship to every project. We offer expert brick repointing, comprehensive restoration services, professional-grade sealing, and thorough winterization services designed specifically for Atlantic Canada’s demanding climate.
Don’t wait until small problems become structural emergencies. Contact Atlantic Brick and Stone today to schedule a professional evaluation and discover how our long-lasting approaches can protect your masonry investment for generations to come.
For residential properties, conduct comprehensive inspections twice yearly, once in spring after winter’s freeze-thaw cycles have ended, and again in fall before the first freeze. Commercial buildings with more extensive brick facades or higher exposure should increase this frequency to quarterly inspections. Additionally, always inspect your brickwork after severe weather events like heavy storms, prolonged freezing periods, or intense rainfall. Early detection during these regular inspections prevents minor issues like small cracks or loose mortar from becoming major structural repairs that cost thousands of dollars.
Repointing is the process of removing deteriorated mortar from joints and replacing it with fresh mortar to restore structural integrity and prevent water infiltration. This essential maintenance technique focuses on functionality and durability, confirming your wall remains strong and weather-tight. Tuckpointing, on the other hand, is primarily an aesthetic technique that uses two contrasting colours of mortar, one matching the brick and a thin “bead” of a different colour, to create the illusion of perfectly straight, thin joints. Atlantic Brick and Stone’s repointing services focus on structural restoration and long-term durability, using properly mixed mortar and expert application techniques that confirm lasting results.
While DIY brick sealing is possible, the risks of using the wrong products make professional application highly advisable. The critical factor is choosing a breathable silane-siloxane penetrating sealer rather than a non-breathable film-forming sealant. Non-breathable sealers trap moisture inside the brick, and when that trapped water freezes or tries to evaporate, it causes catastrophic spalling where the entire brick face pops off. Atlantic Brick and Stone uses commercial-grade sealers that provide longer-lasting protection than consumer products. Our professional application confirms even coverage, proper surface preparation, and correct product selection. Professional sealing can extend your brick’s lifespan by 15 to 20 years, making it a worthwhile investment.
Professionally executed repointing can last for decades when done correctly. The longevity depends on several factors including climate (freeze-thaw cycles accelerate deterioration), wall orientation (south-facing walls deteriorate faster due to UV exposure), and mortar quality. Atlantic Brick and Stone’s attention to proper mortar mixing ratios, depth of joint preparation, and application techniques confirms lasting results. We use mortar that matches the original composition in strength and flexibility, which is critical for durability. Using modern high-strength Portland cement on older, softer bricks causes the bricks to crack, so correctly matched mortar is essential for repointing that truly lasts.
Efflorescence, the white, powdery residue on brick surfaces, indicates excessive moisture within the wall, so addressing the underlying water issue is more important than just cleaning the surface. First, identify and fix the moisture source, which might involve improving drainage, repairing cracks, sealing the brick with a breathable sealer, or correcting grading issues. You can brush away surface deposits with a dry, stiff-bristled brush, but the efflorescence will return unless you address water infiltration. Atlantic Brick and Stone’s detailed pre-repair evaluations diagnose root causes of moisture problems, confirming comprehensive approaches rather than temporary fixes that only treat symptoms.
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Create stunning structures with our residential and commercial masonry services in Fredericton. From meticulous designs to the completed build, our process is professional and rewarding, and we can’t wait to build your dream with you.
Atlantic Brick and Stone, one of the best masonry contractors in Fredericton, NB
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