Northwest Poly Services specializes in lifting concrete. We’re here to help our fellow residential, commercial, and municipal neighbors repair their sunken concrete slabs, walkways, and stairs. Our Pacific Northwest climate makes large demands on our soil, often causing our sidewalks, garage floors, and concrete slabs to settle and become uneven. This can lead to trip hazards, or worse, more major problems like drainage and soil erosion. Let us help! By drilling a small hole through your sinking concrete and injecting our poly foam solution, we can lift those problem areas level again. We serve Snohomish, Skagit, Whatcom, Island, and San Juan Counties. Give us a call or send us an email for a Free Estimate. Our service comes with a 25 Year Transferable Warranty and proceeds from every job go right back to the communities we live and work in.
"They raised a sunken cement sidewalk. They were punctual, efficient, explained things well, friendly, cleaned up, and did great work! Beautiful! I highly recommend them!"
Holly S on June 2022
Northwest Poly Services specializes in lifting concrete. We’re here to help our fellow residential, commercial, and municipal neighbors repair their sunken concrete slabs, walkways, and stairs. Our Pacific Northwest climate makes large demands on our soil, often causing our sidewalks, garage floors, and concrete slabs to settle and become uneven. This can lead to trip hazards, or worse, more major problems like drainage and soil erosion. Let us help! By drilling a small hole through your sinking concrete and injecting our poly foam solution, we can lift those problem areas level again. We serve Snohomish, Skagit, Whatcom, Island, and San Juan Counties. Give us a call or send us an email for a Free Estimate. Our service comes with a 25 Year Transferable Warranty and proceeds from every job go right back to the communities we live and work in.
"They raised a sunken cement sidewalk. They were punctual, efficient, explained things well, friendly, cleaned up, and did great work! Beautiful! I highly recommend them!"
Holly S on June 2022
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 northwest Washington area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.
"Tyler, Danny, & Juan were friendly, professional, and very efficient. They cleared out all the old insulation and rodent leavings under our house Friday in 4-5 hours. Monday they installed insulation, thick white plastic and sealed up the crawl space with a de humidifier and were done by 3:30pm"
David L on May 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 northwest Washington area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.
"Tyler, Danny, & Juan were friendly, professional, and very efficient. They cleared out all the old insulation and rodent leavings under our house Friday in 4-5 hours. Monday they installed insulation, thick white plastic and sealed up the crawl space with a de humidifier and were done by 3:30pm"
David L on May 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.
"Charles, Ty W., and Ty G. performed beyond expectation. They finished the job ahead of schedule and communicated well throughout the entire process. I will definitely contract with them again for any future project. "
Scott S on May 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.
"Charles, Ty W., and Ty G. performed beyond expectation. They finished the job ahead of schedule and communicated well throughout the entire process. I will definitely contract with them again for any future project. "
Scott S on May 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
RPM Restoration, LLC, are the experts when it comes to foundation repair. We are a certified AB Chance-Atlas installer and licensed dealer. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction in which we serve the client from the developmental stages of a project to final completion. By early involvement in the conceptual phase of a project, we can explore all design possibilities with the client to assist in obtaining the best balance of aesthetics and budget covering all aspects. Through ongoing education, training, and cutting edge technology, we bring the latest innovations in specialty architectural finishes to your project. RPM Restoration, LLC, welcomes the opportunity to assist you with your particular project needs. Give us a call; you will be glad you did. We look forward to working with you!
"The providers were very hardworking and sincere."
Jaya D on May 2024
RPM Restoration, LLC, are the experts when it comes to foundation repair. We are a certified AB Chance-Atlas installer and licensed dealer. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction in which we serve the client from the developmental stages of a project to final completion. By early involvement in the conceptual phase of a project, we can explore all design possibilities with the client to assist in obtaining the best balance of aesthetics and budget covering all aspects. Through ongoing education, training, and cutting edge technology, we bring the latest innovations in specialty architectural finishes to your project. RPM Restoration, LLC, welcomes the opportunity to assist you with your particular project needs. Give us a call; you will be glad you did. We look forward to working with you!
"The providers were very hardworking and sincere."
Jaya D on May 2024
We are a Western Washington family owned and operated business, our business is to keep the customer happy with fast and quality service to level concrete using industry-leading poly material and equipment. Our focus is to lift and level concrete driveways, steps, sidewalks, patios, garage, and warehouse floors. We’re happy to provide FREE estimates and would love the opportunity to work on your project, you will be provided a quality, timely, professional, and friendly experience.
"Not only did they provide quality service, but the customer service and interactions with them were top tier. They were highly professional and worked to provide us a driveway leveling that exceeded our expectations."
Michael C on October 2024
We are a Western Washington family owned and operated business, our business is to keep the customer happy with fast and quality service to level concrete using industry-leading poly material and equipment. Our focus is to lift and level concrete driveways, steps, sidewalks, patios, garage, and warehouse floors. We’re happy to provide FREE estimates and would love the opportunity to work on your project, you will be provided a quality, timely, professional, and friendly experience.
"Not only did they provide quality service, but the customer service and interactions with them were top tier. They were highly professional and worked to provide us a driveway leveling that exceeded our expectations."
Michael C on October 2024
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
Welcome to Gilaco Demo! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!
"I had to replace my fence. Price was good, did a good job and was done in a few hours."
Thomas K on March 2025
Welcome to Gilaco Demo! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!
"I had to replace my fence. Price was good, did a good job and was done in a few hours."
Thomas K on March 2025
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
Architectural Concrete Inc. is an entirely referral based company. We don't advertise in any way other than word of mouth which makes Angie's list a great match for you, the consumer, and ourselves. We take pride in customer satisfaction in both our quality and affordability. This is one of the reasons we never require a deposit for work to be done on your project. You get to see the finished product and be completely satisfied before spending a dime. That's how confident we are in our workmanship. Your home will be as clean the day we are finished as the day we started. ACI provides start to finish services on all aspects of concrete from excavation, tree removal, demolition and more to pouring and finishing your project to your specifications. We offer the widest selection of colors and patterns for stamped concrete as well as providing the highest quality in all finishes. So give us the opportunity to serve your concrete needs. Let our 25+ years of experience help you create something you will enjoy for many years to come.
"Great. Mark Bonsack did all the work himself. He was true to estimate, even with rain delays and equipment rental. He placed drains,etc. Finish work was great. We would definitely hire again."
A. J on May 2020
Architectural Concrete Inc. is an entirely referral based company. We don't advertise in any way other than word of mouth which makes Angie's list a great match for you, the consumer, and ourselves. We take pride in customer satisfaction in both our quality and affordability. This is one of the reasons we never require a deposit for work to be done on your project. You get to see the finished product and be completely satisfied before spending a dime. That's how confident we are in our workmanship. Your home will be as clean the day we are finished as the day we started. ACI provides start to finish services on all aspects of concrete from excavation, tree removal, demolition and more to pouring and finishing your project to your specifications. We offer the widest selection of colors and patterns for stamped concrete as well as providing the highest quality in all finishes. So give us the opportunity to serve your concrete needs. Let our 25+ years of experience help you create something you will enjoy for many years to come.
"Great. Mark Bonsack did all the work himself. He was true to estimate, even with rain delays and equipment rental. He placed drains,etc. Finish work was great. We would definitely hire again."
A. J on May 2020
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.