THE 10 BEST Ground Improvement Services in PORTLAND, OR

Business Name	Key Services	Best For	Address	Hours	PS Rating
Ram Jack West Portland	Foundation Repair, Concrete Lifting, Seismic Retrofitting, Basement Waterproofing	Permanent Foundation Solutions with Lifetime Warranty	9800 SE Fuller Rd, Happy Valley, OR 97086	Mon-Fri: 8:00 AM – 5:00 PM, Sat-Sun: Closed	4.7/5
TerraFirma Foundation Systems	Foundation Repair, Crawl Space Solutions, Concrete Leveling, Earthquake Retrofitting	Comprehensive Structural Solutions for Northwest Homes	13110 SW Wall St, Portland, OR 97223	Mon-Fri: 8:00 AM – 5:00 PM, Sat-Sun: Closed	4.6/5
M Leon Construction	Foundation Repair, Crawl Space Work, Basement Dig-Outs, Drainage Solutions	Family-Owned Foundation Specialists Since 1982	10940 SW Barnes Rd Ste 427, Portland, OR 97225	Mon-Fri: 8:00 AM – 4:00 PM, Sat-Sun: Closed	4.8/5
Hal’s Construction	Excavation, Grading, Drainage Control, Site Preparation	Large-Scale Commercial and Residential Excavation Projects	20666 S Highway 213, Oregon City, OR 97045	Mon-Fri: 6:00 AM – 6:00 PM, Sat-Sun: Closed	4.5/5
Advanced Earth Stabilization	Soil Stabilization, Deep Foundation Support, Landslide Repair, Retaining Walls	Hillside Development and Land Movement Solutions	Portland Metro Area	Mon-Fri: 8:00 AM – 5:00 PM	4.4/5
Lovaz Excavating LLC	Excavation, Trenching, Grading, Drainage Solutions, Site Preparation	Residential and Commercial Excavation with 5-Year Warranty	Oregon City, OR (Serves Portland Metro)	Mon-Fri: 7:00 AM – 5:00 PM, Sat-Sun: By Appointment	4.6/5
Western Construction Systems	Foundation Repair, Waterproofing, Drainage Systems, Structural Services	Veteran-Owned Foundation and Waterproofing Specialists	Portland Metro Area	Mon-Fri: 8:00 AM – 5:00 PM	4.7/5
Superior Underground	Excavation, Septic Systems, Sewer Repair, Grading, Drainage Solutions	Expert Septic and Underground Utilities	Portland and SW Washington	Mon-Fri: 8:00 AM – 5:00 PM	4.5/5
Simple Lawns & Landscape Design	Drainage Installation, Bioswale Systems, Irrigation, Soil Aeration	Residential Drainage and Lawn Care Solutions	Portland and Vancouver Metro	Mon-Fri: 8:00 AM – 5:00 PM	4.3/5
Landscape East & West	Drainage Solutions, Retaining Walls, Soil Stabilization, French Drains	Professional Landscape Drainage Since 1980	Hillsboro, OR (Serves Portland Metro)	Mon-Fri: 8:00 AM – 5:00 PM	4.6/5

#1. Ram Jack West Portland – Best for Permanent Foundation Solutions with Lifetime Warranty

Key Highlights:

• Over 20 years of exclusive foundation repair expertise in the Pacific Northwest with engineered steel pile solutions
• Industry-leading lifetime transferable warranty backed by a warranty trust fund for complete peace of mind
• Specializes in foundation settling, seismic retrofitting, and concrete leveling with minimal property disruption

Ram Jack West Portland stands out as the top choice for foundation repair in the Portland area. This company uses patented steel pile technology that has been tested and proven across thousands of installations nationwide.

Their team handles everything from residential foundation settling to commercial structural issues. What makes them special is their honest approach. They will tell you if you don’t need repairs rather than selling unnecessary services. The company serves Portland, Beaverton, Hillsboro, Vancouver, and all surrounding areas with fast response times.

Their foundation specialists provide free inspections that typically take about 90 minutes. During this time, they measure floor levels and check for settlement patterns. The work gets done quickly with most repairs completed in just a few days. Homeowners appreciate that they don’t need to move out during the repair process.

Ram Jack uses American-made products that meet strict ICC-ES standards. Their warranty coverage protects both current and future homeowners. This transferable warranty is backed by a special trust fund that ensures protection even decades down the line. For anyone dealing with cracked walls, uneven floors, or stuck doors and windows, Ram Jack provides solutions built to last a lifetime.

#2. TerraFirma Foundation Systems – Best for Comprehensive Structural Solutions for Northwest Homes

Key Highlights:

• Nearly 20 years serving Pacific Northwest homeowners with customized foundation and structural solutions
• Offers optional 24/7 monitoring systems to track basement and crawl space performance over time
• Provides complete services including foundation repair, waterproofing, concrete leveling, and earthquake retrofitting

TerraFirma has built a strong reputation since 2005 by focusing on the unique challenges that Northwest homes face. The company understands how Portland’s clay soils and heavy rainfall create the perfect conditions for foundation problems.

Their service area covers Portland, Gresham, Beaverton, Hillsboro, Lake Oswego, and many other surrounding communities. Nearly half of their business comes from referrals and repeat customers. This shows the high level of trust they have earned in the community.

What sets TerraFirma apart is their thorough inspection process. They take detailed photos and explain exactly what needs to be done. Their specialists use terms that regular homeowners can understand. No confusing technical jargon or pressure tactics.

The company offers solutions for cracked foundations, wet basements, musty crawl spaces, and sunken concrete. They also handle earthquake retrofitting for older homes. Each project gets customized to the specific needs of that property. TerraFirma backs their work with strong warranties and provides financing options to make repairs affordable. Their team works efficiently to complete most projects within a few days while maintaining clean work sites.

#3. M Leon Construction – Best for Family-Owned Foundation Specialists Since 1982

Key Highlights:

• Over 40 years of combined experience serving Portland homeowners with foundation and crawl space solutions
• Trusted by realtors, home inspectors, and property owners for honest assessments and reliable repairs
• Specializes in foundation restoration, crawl space repairs, basement dig-outs, and structural dry rot treatment

M Leon Construction brings four decades of local knowledge and family values to every project. This company has seen it all when it comes to foundation problems in Portland homes.

Their experience covers homes from every era, from historic properties built in the early 1900s to modern new construction. The team understands the specific foundation challenges that come with Portland’s damp climate. They know how moisture affects different foundation types and building materials.

The company provides free evaluations to help homeowners understand what they are dealing with. Their technicians explain the problems clearly and recommend only the work that truly needs to be done. Many customers appreciate this honest approach in an industry where some companies oversell services.

M Leon handles everything from minor crack repairs to complete foundation replacements. They also tackle crawl space encapsulation, vapor barrier installation, and drainage system upgrades. The crew takes care to protect your home during work. They lay down protective coverings and clean up thoroughly when finished.

Communication stands out as one of M Leon’s strengths. They respond quickly to calls and emails. They keep customers updated throughout the project. This family-owned business treats every home like it belongs to their own family members. For reliable foundation work backed by decades of local expertise, M Leon Construction delivers quality results.

#4. Hal’s Construction – Best for Large-Scale Commercial and Residential Excavation Projects

Key Highlights:

• More than 50 years of excavation and grading expertise serving the greater Portland metro area
• State-of-the-art laser-controlled equipment for precision grading within 0.01 to 0.02 feet tolerance
• Full-service capabilities including excavation, drainage solutions, site preparation, and trenchless technology

Hal’s Construction has been moving earth in Portland since 1973. This family-owned business knows how to handle excavation projects of any size with professional skill.

The company serves commercial, residential, industrial, and municipal clients throughout Portland, Beaverton, Gresham, Oregon City, and surrounding areas. Their team works year-round to complete projects on schedule and within budget.

What makes Hal’s special is their investment in modern equipment and technology. They use laser-controlled grading systems that ensure perfect elevations for paving and drainage. This precision prevents future problems with water pooling or uneven surfaces. The company also offers trenchless technology for underground pipe installation, which means no torn-up driveways or ruined landscaping.

Hal’s Construction handles site preparation, trenching, grading, and demolition work. They are experts at solving drainage problems that plague many Portland properties. Their estimators can visit your site and recommend the most effective and economical drainage solutions at no extra charge.

The company brings reliability that you can count on. Their experienced crews show up on time and complete work as promised. They understand that delays on excavation work can hold up entire construction projects. With more than five decades of proven performance, Hal’s Construction continues to be a trusted name for earth-moving services in the Portland area.

#5. Advanced Earth Stabilization – Best for Hillside Development and Land Movement Solutions

Key Highlights:

• Nearly 45 years of combined engineering and excavation experience specializing in complex soil stabilization
• Expertise in deep foundation support, landslide repair, and retaining wall installation for hillside properties
• Understands unique Pacific Northwest challenges including water saturation, hillside development, and seismic codes

Advanced Earth Stabilization tackles the toughest ground improvement challenges in Portland. Founded by Guy Price III, this company brings deep knowledge of soil mechanics and engineering solutions.

The Pacific Northwest presents unique construction challenges that many general contractors cannot handle. Hillside development requires special expertise. Land movement from water saturation needs careful analysis and proper solutions. Advanced Earth Stabilization works directly with engineers to implement designs that address these complex issues.

Their services cover all phases of excavation, site preparation, and drainage enhancement. They also handle utility construction when needed. The company specializes in situations where standard approaches will not work.

If you have a property on a slope, experience landslide concerns, or need deep foundation support, this company has the skills to help. They understand soil types common to our area. They know how water behaves in different ground conditions. This knowledge helps them design solutions that actually work for the long term.

Advanced Earth Stabilization has become the go-to source for contractors and property owners facing difficult ground conditions. Their work meets the latest seismic upgrade codes required in our region. For properties with serious stability concerns or complex terrain challenges, this specialized company provides the engineering-based solutions needed for safe, lasting results.

#6. Lovaz Excavating LLC – Best for Residential and Commercial Excavation with 5-Year Warranty

Key Highlights:

• Over 10 years of excavation expertise serving Washington, Yamhill, Clackamas, Clark, Marion, and Multnomah counties
• Family-operated and minority-led business providing comprehensive warranties: 5 years on plumbing/sewer, 6 months on concrete
• Competitive pricing with rate matching plus exceptional customer service and free estimates within 2 to 3 days

Lovaz Excavating brings a customer-first approach to excavation and site work in the Portland area. This locally-owned company handles projects ranging from residential basement digs to commercial site preparation.

Their team specializes in excavation, grading, trenching, and concrete work. They provide drainage solutions that protect properties from water damage and erosion. Whether you need a new driveway installed, land cleared, or utility trenching completed, Lovaz has the equipment and skills to do it right.

The company stands behind their work with solid warranties. A five-year warranty on plumbing and sewer work shows their confidence in quality. The six-month concrete warranty provides additional peace of mind. These warranties matter because they protect your investment.

Lovaz serves Oregon City, Portland, Gresham, and many surrounding communities. They respond to estimate requests quickly, usually within two to three days. Their pricing remains competitive, and they will match or beat competitor rates while maintaining high standards.

Being a minority-led, family-operated business, Lovaz takes pride in building strong relationships with customers. They treat every property with care and respect. The crew stays focused on safety and compliance with all regulations. Their licensed and insured status means you can hire them with confidence. For excavation work backed by strong warranties and personal service, Lovaz Excavating delivers reliable results.

#7. Western Construction Systems – Best for Veteran-Owned Foundation and Waterproofing Specialists

Key Highlights:

• Veteran-owned company bringing military-level dedication and attention to detail to every foundation project
• Specializes in basement waterproofing, foundation repair, and drainage solutions for Pacific Northwest weather challenges
• Committed to high-quality materials, competitive pricing, and customized solutions tailored to specific property needs

Western Construction Systems approaches foundation and waterproofing work with the same dedication and precision learned through military service. This veteran-owned company understands that your home’s foundation is critical to your family’s safety.

Portland’s weather can be hard on properties. Heavy rainfall, clay soils, and moisture issues create constant challenges for foundations and basements. Western Construction Systems has built their business around solving these specific problems.

The company offers foundation repair, basement waterproofing, and drainage system installation. Their team uses only top-quality materials and state-of-the-art equipment. This commitment to quality ensures that repairs last for many years.

What makes Western Construction Systems special is their focus on customer satisfaction. They work closely with clients throughout the entire process. Communication stays clear and frequent. The team explains what needs to be done and why, without confusing technical language.

Their competitive pricing makes professional foundation work accessible to more homeowners. They believe quality structural services should not break the bank. The company tailors each solution to the specific needs of the property and the customer’s budget.

Customers consistently praise Western Construction Systems for going above and beyond expectations. The team works hard, stays professional, and takes care of all concerns before finishing a job. For foundation and waterproofing services delivered with integrity and skill, this veteran-owned business provides excellent value.

#8. Superior Underground – Best for Expert Septic and Underground Utilities

Key Highlights:

• Over 15 years of professional excavation services specializing in septic systems and underground utilities
• Licensed and certified in Oregon for septic installation, repair, and replacement with complete system design
• Offers comprehensive services including excavation, drainage, minor grading, and demolition work

Superior Underground has become Portland’s trusted choice for underground utility work and excavation services. The company brings specialized knowledge that general contractors often lack.

Their expertise covers septic system installation and repair, sewer line rehabilitation, and excavation for new construction. They also handle minor grading and sloping projects. The team uses laser-level technology to ensure proper grades and drainage patterns.

What sets Superior Underground apart is their focus on underground systems. They understand how to work with existing utilities safely. They know local codes and requirements for septic systems. This specialized knowledge prevents costly mistakes.

The company offers trenchless technology options for sewer repair. This innovative approach means less digging, less damage to landscaping, and faster completion times. They can often repair or replace sewer lines without tearing up your entire yard.

Superior Underground provides services for both residential and commercial properties. They work on new home builds, ADUs, shops, and small commercial buildings. Their team handles everything from initial site evaluation to final cleanup.

The company also offers light demolition work for sheds, garages, and small buildings. They do small hauls of yard debris, wood, and metal. For over 15 years, Superior Underground has helped Portland property owners with their underground utility needs. Their combination of experience, proper licensing, and professional equipment makes them a reliable choice.

#9. Simple Lawns & Landscape Design – Best for Residential Drainage and Lawn Care Solutions

Key Highlights:

• Over 20 years of experience providing drainage solutions and landscape services to Portland and Vancouver properties
• Specializes in bioswale installations, French drains, and soil aeration to prevent standing water and improve lawn health
• Offers 50% off first month promotion plus comprehensive services including irrigation systems and seasonal maintenance

Simple Lawns & Landscape Design solves drainage problems that plague Portland lawns and landscapes. This company understands how proper water management protects your property and keeps your lawn healthy.

Poor drainage causes many issues for homeowners. Standing water creates mud, kills grass, attracts mosquitoes, and can even damage your home’s foundation. Simple Lawns tackles these problems with proven drainage solutions.

Their services include bioswale installations that provide natural pathways for stormwater runoff. They install French drains to redirect water away from problem areas. The team also provides soil aeration to help compacted soil absorb water better.

What makes Simple Lawns different is their comprehensive approach. They do not just install a drain and leave. They assess your entire property to understand water flow patterns. Then they design a solution that works with your landscape rather than against it.

The company serves both Portland and Vancouver with residential and commercial services. They offer landscape maintenance, irrigation system installation, and seasonal services like fall cleanup and snow removal. This one-stop-shop approach makes property management easier.

Simple Lawns provides personalized attention to every project. Their team can handle complex drainage issues that other companies might avoid. They use quality materials and proven installation methods. With over two decades of experience, they have seen and solved almost every type of drainage problem Portland properties face.

#10. Landscape East & West – Best for Professional Landscape Drainage Since 1980

Key Highlights:

• Over 40 years of landscape design and drainage expertise serving the greater Portland metro area
• Comprehensive drainage solutions including French drains, soil amendments, retaining walls, and rainwater management
• Expert knowledge of local soil conditions and Portland-specific drainage challenges with custom design approach

Landscape East & West brings four decades of experience to drainage and landscape challenges in Portland. This company has watched the city grow and has solved drainage problems in neighborhoods throughout the metro area.

Portland soils often contain heavy clay that makes water drainage difficult. Landscape East & West knows these soils inside and out. They understand how different areas of Portland drain differently. This local knowledge is invaluable for designing effective solutions.

The company offers multiple drainage solutions depending on your specific situation. French drains work well for localized problems. Multi-flow systems handle larger areas. They also install dry stream beds, flow wells, and use specialized soil amendments.

What sets Landscape East & West apart is their holistic approach. They look at your entire property as a system. A drainage problem in one area might affect other areas too. Their designers create solutions that work together to manage water properly.

The company serves Portland, Lake Oswego, Clackamas, Hillsboro, and surrounding areas. They handle both residential and commercial properties. Their team includes designers, engineers, and skilled installers who work together seamlessly.

Landscape East & West does not just fix drainage problems. They also build retaining walls, install irrigation systems, and provide full landscape services. This expertise allows them to create beautiful outdoor spaces that function properly. With annual soil pH analysis and custom drainage designs, they ensure your landscape stays healthy and dry year-round.

What are the most common ground improvement issues in Portland, OR?

Portland properties face several common ground improvement challenges due to our unique climate and soil conditions. Foundation settling tops the list as clay soils expand when wet and shrink when dry. This movement causes foundations to crack and settle unevenly over time.

Drainage problems affect many Portland homes because our area receives heavy rainfall throughout the year. Poor drainage leads to standing water, soggy lawns, basement flooding, and soil erosion. These issues get worse when gutters overflow or downspouts dump water too close to foundations.

Slope instability and landslides occur on hillside properties, especially after prolonged rain. The combination of steep terrain, water saturation, and certain soil types creates dangerous conditions. Retaining wall failures also happen when walls were not built correctly or when drainage behind them fails. Addressing these ground improvement issues early prevents much more expensive repairs later. Professional assessment helps identify problems before they become serious threats to your property.

How much do ground improvement services typically cost in Portland?

Ground improvement service costs vary widely based on the specific type of work needed and the extent of the problem. Foundation repair in Portland typically ranges from $2,000 to $15,000 for most residential projects. Simple crack repairs might cost just a few hundred dollars, while extensive foundation stabilization with steel piers can reach $20,000 or more.

Excavation and grading work usually costs between $50 to $150 per hour for the equipment and operator. A typical residential grading project might run $2,000 to $8,000 depending on the site size and complexity. Drainage system installation costs $2,000 to $6,000 for most homes. French drain installation typically costs $20 to $50 per linear foot.

Retaining wall costs depend on height and materials. Small decorative walls might cost $15 to $30 per square foot, while large engineered walls can cost $50 to $150 per square foot. Soil stabilization for landslide repair can range from $10,000 to $50,000 or more for serious problems. Always get multiple quotes from licensed contractors. Many companies offer free estimates and inspection services. Financing options are often available to make major ground improvement work more affordable. Remember that addressing problems early usually costs much less than waiting until damage becomes severe.

How long do ground improvement projects typically take to complete?

The timeline for ground improvement projects in Portland varies significantly based on the scope and type of work involved. Simple drainage installations like French drains typically take one to three days to complete. The crew digs trenches, installs the drainage pipe, and restores the surface relatively quickly.

Foundation repair projects usually take two to five days for most residential homes. The exact timeline depends on how many piers need installation and whether the crew encounters unexpected issues. Some foundation repairs can be completed in just one day if the problem is minor.

Larger excavation and grading projects might take one to two weeks. This includes site preparation, earth moving, and final grading. Complex projects with difficult access or challenging terrain may take longer. Commercial excavation projects can extend to several weeks or months depending on scale.

Retaining wall construction timelines vary from a few days for small walls to several weeks for large engineered structures. Soil stabilization projects for landslide repair can take two to four weeks or longer for extensive work. Weather plays a big role in Portland project timelines. Heavy rain can delay excavation, grading, and concrete work. Most contractors plan for weather-related delays during our rainy season. Good contractors provide realistic timelines upfront and keep you updated if circumstances change. The key is choosing experienced professionals who work efficiently while maintaining quality standards.