15 Best Waterproofing Companies in Seattle

Embassy Masonry and Foundation Repair serves Seattle with waterproofing, foundation repair, masonry, concrete and exterior construction work. Its capabilities include repairing foundation cracks, waterproofing basements, repointing brickwork and addressing chimney or broader exterior concerns, with methods selected around the condition of the property.

All Seasons Waterproofing and Drainage serves Seattle and the wider Seattle–Tacoma area with basement waterproofing, crawl-space drainage, sump pumps and yard drainage solutions. The team handles projects such as internal French drains, pressure-relief drains and blocked downspout systems, with attention to protecting finished areas during construction.

Allied Waterproofing & Drainage serves Seattle with drainage, waterproofing, sewer and water-pipe solutions. Its work includes electronic location of blockages, downspout and crawl-space drainage, channel drains, French-drain systems, and trenchless or conventional pipe repair and replacement.

Seattle Elite Masonry and Foundation Repair handles waterproofing and foundation work in Seattle, including foundation crack repair, basement leak solutions and area waterproofing. The team is described as direct, professional and responsive, with project updates that keep homeowners informed from inspection through completion.

Seattle Advanced Waterproofing & Foundation Repairs focuses on protecting homes and commercial properties from water intrusion and structural problems. Its work includes basement waterproofing, foundation repair, stabilization, roofing, masonry, concrete work, and underpinning across Seattle.

The business is particularly suited to projects involving leaking basements, wall cracks, foundation settlement, roof damage, or broader structural deterioration. Its approach emphasizes prompt inspection, clear communication, professional workmanship, and durable solutions adapted to Seattle’s heavy rainfall, shifting soils, and aging structures.

Expert Masonry and Foundation Repairs provides Seattle waterproofing and foundation services, including crack repair, basement leak work, concrete replacement and retaining-wall construction. The company’s assessments are direct and detailed, with the underlying cause investigated before the repair plan is finalized.

Kitsap Drainage and Waterproofing focuses on residential and commercial water management, with excavation, basement waterproofing, French drains, downspout drainage, foundation waterproofing, drain inspections and hydro jetting. The company approaches drainage as a whole-site problem, connecting individual systems where needed rather than treating isolated symptoms.

City Construction Solution is a Seattle construction company with particular strength in drainage and foundation-related work. Projects described include French drain systems, basement water-leak solutions and foundation repairs, with detailed estimates and reports helping property owners compare possible approaches.

KG Basement Waterproofing Seattle handles basement moisture problems in Seattle, including foundation crack repairs , French drains and sump pump installations. The team is known for organized work, clear communication and an efficient approach that keeps projects moving without overlooking the finish.

Clean working habits and careful workmanship add confidence when water intrusion has become an ongoing concern.

Seattle Secure Waterproofing & Foundation focuses on foundation stabilization and repair in Seattle. Its work includes underpinning and structural reinforcement for properties affected by settlement, with an emphasis on explaining the problem clearly before carrying out an efficient repair.

The approach suits homeowners looking for a straightforward assessment and a professionally managed path back to a stable foundation.

Jet City Foundation & Construction serves Seattle with foundation inspections, repairs and waterproofing, alongside selected structural construction work. Its process puts weight on finding the underlying cause rather than guessing, then explaining the recommended work in plain language.

Crews are described as prompt, respectful of the property and efficient, even when weather complicates the job. The company also handles patio and step repairs, additions and remodeling projects. Online estimates are available for projects that can be scoped remotely.

Seattle Quality Waterproofing and Foundation Repair works across Seattle on basement leaks , foundation cracks , exterior French drainage and selected repointing. Fast inspections, clear explanations and efficient scheduling are central to its appeal.

The finished work is presented with attention to clean execution, from keeping basements dry to restoring worn brickwork.

Basement Expert Waterproofing of Seattle handles basement waterproofing , foundation repair, French drains, drainage systems, sump pumps and related restoration. Its work is especially methodical when water enters through several routes: teams can scope underground drain lines, connect gutters, install perimeter systems and address difficult plumbing conditions.

Clear communication, clean sites and recommendations based on the actual problem—not unnecessary add-ons—are defining features. The company provides on-site service in the Seattle area and offers online estimates.

Chore-ology Restoration & Handyman brings together general handyman work, home repairs and restoration for Seattle and the wider King County area. Projects range from lighting, plumbing and interior fixes to moisture problems, mold remediation, storm damage and emergency water response.

Gravity Waterproofing and Drainage protects Seattle properties from water intrusion through basement waterproofing, crawl-space encapsulation, exterior perimeter drains, interior drainage and sump-pump solutions. The team takes on complex runoff problems, including standing water, blocked downspouts and challenging yard drainage.

A notable strength is the complete handoff: drainage work can include backfilling, restoring pavers, rerouting sprinklers, rebuilding retaining walls and cleaning the site. That single-team approach reduces the disruption of coordinating separate contractors.