We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Professional and on time service. Would recommend to anyone looking for help with their dreams. "
Jesse L on March 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Professional and on time service. Would recommend to anyone looking for help with their dreams. "
Jesse L on March 2025
Groundworks specializes in helping homeowners with their residential and commercial foundation repair, basement waterproofing and wall repair, and concrete repair needs. Our top priority is providing high-quality home repair solutions and personalized service across the Seattle area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.
"Gardner came to do an inspection of my basement and provide a quote. I had received other quotes that only provided for a single sump pump install at outrageous prices. He was very thorough, took two hours to measure, inspect, provided videos and explanations on everything, and the quote was shockingly affordable with so much more work I was ecstatic! I am getting a three sump pump with back up battery, and so much more for basically what the others quoted. And, to have the option to finance through Greensky was the cherry on top! If you are in King County, ask for Gardner @ GROUNDWORKS - you won’t regret it!"
Deanna R on March 2025
Groundworks specializes in helping homeowners with their residential and commercial foundation repair, basement waterproofing and wall repair, and concrete repair needs. Our top priority is providing high-quality home repair solutions and personalized service across the Seattle area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.
"Gardner came to do an inspection of my basement and provide a quote. I had received other quotes that only provided for a single sump pump install at outrageous prices. He was very thorough, took two hours to measure, inspect, provided videos and explanations on everything, and the quote was shockingly affordable with so much more work I was ecstatic! I am getting a three sump pump with back up battery, and so much more for basically what the others quoted. And, to have the option to finance through Greensky was the cherry on top! If you are in King County, ask for Gardner @ GROUNDWORKS - you won’t regret it!"
Deanna R on March 2025
Using state of the art Geo-Polymer injection. Slabjack Geotechnical offers a cost effective alternative to concrete replacement and mud-jacking. Save up to 50% or more over removal and replacement costs! With years of experience, we solve customers concrete settling problems in Eastern and Central Washington and north Idaho, with locations now in Tri-cities, Wenatchee, Spokane and Puget Sound; We serve all surrounding areas. We raise sunken basements, garage floors, porches/stoops, driveways, walkways, pool decks and more. We also seal and stabilize seawalls and bulkheads, leaking culverts and large diameter concrete pipe. Check our our website www.slabjackgeotechnical.com for more information. Superior technology, Superior polymers, Superior results!
"All interactions in the job bid, approval and scheduling were friendly and professional. Dustin and Jaime did an awesome job!!! They arrived on time, went over the job in detail with me, and then went to work. As the job progressed they kept me informed of any issues that arose and made sure I was happy with the process. The final results were flawless and they left the jobsite spotless. I would hire this company again in a heartbeat!!!"
John G on October 2024
Using state of the art Geo-Polymer injection. Slabjack Geotechnical offers a cost effective alternative to concrete replacement and mud-jacking. Save up to 50% or more over removal and replacement costs! With years of experience, we solve customers concrete settling problems in Eastern and Central Washington and north Idaho, with locations now in Tri-cities, Wenatchee, Spokane and Puget Sound; We serve all surrounding areas. We raise sunken basements, garage floors, porches/stoops, driveways, walkways, pool decks and more. We also seal and stabilize seawalls and bulkheads, leaking culverts and large diameter concrete pipe. Check our our website www.slabjackgeotechnical.com for more information. Superior technology, Superior polymers, Superior results!
"All interactions in the job bid, approval and scheduling were friendly and professional. Dustin and Jaime did an awesome job!!! They arrived on time, went over the job in detail with me, and then went to work. As the job progressed they kept me informed of any issues that arose and made sure I was happy with the process. The final results were flawless and they left the jobsite spotless. I would hire this company again in a heartbeat!!!"
John G on October 2024
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Was a great experience, professional and fast."
David F on April 2025
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Was a great experience, professional and fast."
David F on April 2025
We raise 'sunken' concrete! Our polyurethane concrete raising system allows you to restore sunken, cracked and damaged concrete at a fraction of the cost of replacement. For sunken driveway or patio slabs, uneven basement floors or walkways, and other issues with concrete and cement surfaces, 1-866 SLABJACK is your local concrete expert. We serve residential and commercial customers in King, Snohomish, Skagit, Pierce and Thurston Counties. - Patio Restoration - Driveway Leveling - Uneven walkways - Sunken porches
"The staff were extremely friendly, explained what they were doing, and did an excellent job. I highly recommend this company to anyone who needs slabjacking!!"
caroline d on June 2019
We raise 'sunken' concrete! Our polyurethane concrete raising system allows you to restore sunken, cracked and damaged concrete at a fraction of the cost of replacement. For sunken driveway or patio slabs, uneven basement floors or walkways, and other issues with concrete and cement surfaces, 1-866 SLABJACK is your local concrete expert. We serve residential and commercial customers in King, Snohomish, Skagit, Pierce and Thurston Counties. - Patio Restoration - Driveway Leveling - Uneven walkways - Sunken porches
"The staff were extremely friendly, explained what they were doing, and did an excellent job. I highly recommend this company to anyone who needs slabjacking!!"
caroline d on June 2019
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Very professional and efficient. We had a great experience!"
Samantha S on March 2024
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Very professional and efficient. We had a great experience!"
Samantha S on March 2024
Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE!
"Groundworks were contracted to encapsulate the crawl space, with a dehumidifier, intellijacks & sump pump. The inspector showed us pictures & videos of what the work would look like on completion, & explained how each solution would be installed. They tried to charge me more for vent covers until I showed them the contract covering this part. The foreman told me there was a reset button for the sump pump to be installed on an exterior wall, but they did not install it, instead said they would put in a service order. I haven’t heard anything about this issue yet. When they installed the moister barrier, they excluded the cement pads I was told it cost extra to have them covered. When I signed the contract, I was never told there would be extra charges for vent covers or cement pads to be covered. The contract I signed covered a complete encapsulation, but this is not what I got. This is a bait & switch. I would not recommend Groundworks."
Fran F on March 2025
Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE!
"Groundworks were contracted to encapsulate the crawl space, with a dehumidifier, intellijacks & sump pump. The inspector showed us pictures & videos of what the work would look like on completion, & explained how each solution would be installed. They tried to charge me more for vent covers until I showed them the contract covering this part. The foreman told me there was a reset button for the sump pump to be installed on an exterior wall, but they did not install it, instead said they would put in a service order. I haven’t heard anything about this issue yet. When they installed the moister barrier, they excluded the cement pads I was told it cost extra to have them covered. When I signed the contract, I was never told there would be extra charges for vent covers or cement pads to be covered. The contract I signed covered a complete encapsulation, but this is not what I got. This is a bait & switch. I would not recommend Groundworks."
Fran F on March 2025
We offer a variety of excavating and septic system services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!
"Went great, very professional, Awsome communication, and plainly got the job done when I needed it! They did foundation cut and gravel/ rock deliveries/ tree removal. Very happy as I always am with working with them! Fair price for great work!"
Nick M on November 2024
We offer a variety of excavating and septic system services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!
"Went great, very professional, Awsome communication, and plainly got the job done when I needed it! They did foundation cut and gravel/ rock deliveries/ tree removal. Very happy as I always am with working with them! Fair price for great work!"
Nick M on November 2024
CD Paver Management is a locally owned and operated company, Licensed Bonded and Insured. We are a premier installer and designer of paving stones and retaining walls for commercial and residential projects. Our staff is fully trained in craftsmanship and we offer on-going training to ensure our expertise in this fast growing industry. We only offer the best products available. We offer the highest industry standards are used on your project. With superior service you have come to expect from an industry leader, Brick Paver & Landscaping LLC. is proud to provide top tier customer care for each and every valued client. With free estimates and an extensive inventory of cutting edge paving products, we have built a loyal clientele through reliable craftsmanship.
"This company is a rare gem who works with integrity and with precise skills. I'd give them 10 stars if I could!"
bo k on May 2023
CD Paver Management is a locally owned and operated company, Licensed Bonded and Insured. We are a premier installer and designer of paving stones and retaining walls for commercial and residential projects. Our staff is fully trained in craftsmanship and we offer on-going training to ensure our expertise in this fast growing industry. We only offer the best products available. We offer the highest industry standards are used on your project. With superior service you have come to expect from an industry leader, Brick Paver & Landscaping LLC. is proud to provide top tier customer care for each and every valued client. With free estimates and an extensive inventory of cutting edge paving products, we have built a loyal clientele through reliable craftsmanship.
"This company is a rare gem who works with integrity and with precise skills. I'd give them 10 stars if I could!"
bo k on May 2023
Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.
"Great communication and thorough work. Would hire again."
Brian J on April 2025
Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.
"Great communication and thorough work. Would hire again."
Brian J on April 2025
Mudjacking and foam jacking differ significantly in both materials and methods. Mudjacking uses a cement-based slurry to fill voids beneath a slab, while foam jacking uses expanding polyurethane foam delivered under high pressure to achieve superior structural support. This material distinction enhances load-bearing strength and overall stability in your repair.
Mudjacking takes between one and three days to dry completely. During this time, it's important to avoid putting weight on the slab until it's fully cured. The drying time depends on the project size and environmental conditions. In contrast, polyurethane foam used in foam jacking can cure in as little as one hour.
No, mudjacking is not a permanent fix for sinking concrete. While it effectively lifts the slab and can last five to 10 years, it doesn't address underlying soil issues that may cause future sinking. For a more permanent solution, you might consider foam jacking or complete slab replacement, which can address deeper structural problems.