Waterproofing CompanyFoundations & MasonryChimney ContractorFoundation ContractorDrainage Service
WA Masonry & Waterproofing LLC provides masonry, chimney repair and rebuilds, basement waterproofing, and foundation repair services in Seattle, WA, and surrounding areas.
We were experiencing some water entering through our foundation and phoned this company. They verified the problem and fixed it quickly. Very nice service.
MW
Maria Welch
2 days ago
5.0
Our basement had major cracks and water leaking through. We contacted this company, and they were quick to come out and get it repaired within a week. Definitely a terrific team.
KW
Kenneth Wilson
2 days ago
5.0
Our foundation, exterior, and interior were all waterproofed by this company. There was a lot of water coming in. They performed a fantastic job, and we would most certainly give them a call if we ever need them again.
LE
Linda Elliot
Dec 30, 2025
5.0
I requested a foundation examination, and they immediately identified the issue. The repair was completed that same week, and it looks fantastic.
OG
Oscar Green
Dec 28, 2025
5.0
The team at WA Masonry & Waterproofing LLC was extremely competent and completed exceptional, superior masonry and foundation repairs. I'm very pleased with their services and would suggest them.
Frequently Asked Questions About WA Masonry & Waterproofing LLC
What causes basement leaks?
Basement leaks can result from several factors. These include hydrostatic pressure, where water exerts force against the foundation, improper grading around the house, blocked gutters or downspouts, cracks in walls or floors, malfunctioning window wells, and deteriorating drainage systems. Each of these issues can contribute to water infiltration in your basement.
How do I know if my basement needs repair?
Several indicators suggest your basement may require repair. These include visible water seepage, damp walls, the presence of mold or mildew odors, efflorescence (a white, powdery substance on walls), cracks in walls or floors, bowed walls, and persistent high humidity levels. If you notice any of these signs, it's advisable to have your basement professionally assessed.
Should I worry about small cracks?
Minor hairline cracks are often a result of normal house settling and may not be cause for immediate concern. However, if these cracks begin to widen, allow water to seep through, or show signs of horizontal movement or bowing, it's crucial to have them inspected by a professional. These changes could indicate more serious structural issues.
What are the most common basement repair methods?
Frequently used basement repair techniques include crack injection using epoxy or polyurethane, interior or exterior waterproofing applications, installation of drain tile systems and sump pumps, wall reinforcement using carbon fiber or steel beams, improvements to grading and gutter systems, and repair or replacement of window wells. The most suitable method depends on the specific issues your basement is experiencing.
Do interior waterproofing systems really work?
Interior waterproofing systems, particularly those involving drain systems and sump pumps, are indeed effective for managing groundwater issues. It's important to note, however, that these systems don't prevent water from reaching the foundation. Instead, they work by redirecting water once it enters, helping to keep your basement dry.
What's the difference between interior and exterior waterproofing?
Exterior waterproofing aims to prevent water from reaching the foundation through the use of membranes, excavation, and drainage systems. In contrast, interior waterproofing manages water after it has entered the basement, typically using drain tile systems and sump pumps. Both approaches can be effective, with the choice depending on the specific problem and budget constraints.
How do I know if my chimney needs repair?
Signs that your chimney may need repair include deteriorating bricks or mortar, water leaks near the fireplace area, a chimney that appears to be leaning, rust in the firebox or damper, white staining (efflorescence) on the exterior of the chimney, or smoke entering your home when the fireplace is in use. If you notice any of these issues, it's advisable to have your chimney inspected.
What causes chimney damage?
Chimney damage can occur due to various factors. These include prolonged exposure to weather elements, water infiltration, repeated freeze-thaw cycles, chimney fires, foundation settling, poor initial construction, or neglect of regular maintenance over extended periods. Any of these can lead to the gradual deterioration of your chimney structure.
How often should I have my chimney inspected?
The national fire protection association recommends annual chimney inspections, even for chimneys that are used infrequently. Regular inspections are crucial as they help identify potential problems early, potentially preventing more extensive and costly repairs in the future.
What is tuckpointing?
Tuckpointing is a masonry repair technique that involves the removal of damaged mortar joints and their replacement with fresh mortar. This process serves to reinforce the structural integrity of the chimney and helps prevent water from penetrating the brickwork, thereby extending the chimney's lifespan.