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.
"Highly recommend. From my consultation with Kirsten to the the job with Wyatt and his crew of Tucker and Quevin, everything was done in a professional manner. If I owned the company these are the kind of employees I would want to have working for me!"
Vern J on December 2024
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.
"Highly recommend. From my consultation with Kirsten to the the job with Wyatt and his crew of Tucker and Quevin, everything was done in a professional manner. If I owned the company these are the kind of employees I would want to have working for me!"
Vern J on December 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
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
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 have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!
"The Job: Work was satisfactorily completed except this vendor should be supervised. -Gate panels replaced were well done and shaped like previous, but were not sanded on top, leaving a 'rip cut' finish. -Fencing Repair completed, post replaced, sagging addressed, BUT dislodged two panels further down the fence...basically, dno ue diligence in checking their work and unintentional impacts. -Minor debris left behind, did not impress. NO SHOW for original estimate request... insisted they had provided an estimate already! They wrongly a**-u-med the address they went to coincidentally on same day was mine (different project)! Attention to customer care missing... Rule #1: NEVER argue with customer / client, specially when you the contractor are wrong! Would not process through Angi Pay, because they are afraid of fraud? Why are they here?"
VJ S on November 2022
We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!
"The Job: Work was satisfactorily completed except this vendor should be supervised. -Gate panels replaced were well done and shaped like previous, but were not sanded on top, leaving a 'rip cut' finish. -Fencing Repair completed, post replaced, sagging addressed, BUT dislodged two panels further down the fence...basically, dno ue diligence in checking their work and unintentional impacts. -Minor debris left behind, did not impress. NO SHOW for original estimate request... insisted they had provided an estimate already! They wrongly a**-u-med the address they went to coincidentally on same day was mine (different project)! Attention to customer care missing... Rule #1: NEVER argue with customer / client, specially when you the contractor are wrong! Would not process through Angi Pay, because they are afraid of fraud? Why are they here?"
VJ S on November 2022
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Highly responsive, and quality work. Did a fantastic job cleaning up my yard. They were able to clean out over 2 years worth of leaves and weed build up from my gravel yard and flower beds over 2 days of work (even in the snow!!)"
Grant T on February 2025
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Highly responsive, and quality work. Did a fantastic job cleaning up my yard. They were able to clean out over 2 years worth of leaves and weed build up from my gravel yard and flower beds over 2 days of work (even in the snow!!)"
Grant T on February 2025
I offer excavation services ranging from driveways to land clearing, debris removal. site preparation and grading. We currently offer services in Kitsap, Clallam, and Pierce Counties. Discounts are available, so please don't hesitate to call!
"The service was wonderful. It was exactly what I hope for. I like their honesty and professionalism."
Carl m on July 2021
I offer excavation services ranging from driveways to land clearing, debris removal. site preparation and grading. We currently offer services in Kitsap, Clallam, and Pierce Counties. Discounts are available, so please don't hesitate to call!
"The service was wonderful. It was exactly what I hope for. I like their honesty and professionalism."
Carl m on July 2021
Concrete Cutting
Concrete Cutting
Whatcom counties premier Custom Hardscape installation Co. West Coast Landscape & Hardscape. Specializing in water features, waterfalls, paver driveways patios, natural stone walls and patios, cut-in flagstoneas well as theme landscape and full outdoor living spaces. 15 years in business and ready to serve. Please call or email for appointment.
"We are on the lake and have a hard time when the city raises the lake and there is weather. We decided to build a stone wall to contain our garden area from being eroded every year. Jessie met me at the Stone quarry, where I picked the stone and he promptly came with his crew and constructed it by hand. They also set a metal gate I had picked out and back filled additional soil. The overall finished product was very effective and he even returned the following year to shore up one part of the dirt by back filling with gravel to help the weather erosion for no extra cost. They went above and beyond in my opinion."
Karen E on April 2018
Whatcom counties premier Custom Hardscape installation Co. West Coast Landscape & Hardscape. Specializing in water features, waterfalls, paver driveways patios, natural stone walls and patios, cut-in flagstoneas well as theme landscape and full outdoor living spaces. 15 years in business and ready to serve. Please call or email for appointment.
"We are on the lake and have a hard time when the city raises the lake and there is weather. We decided to build a stone wall to contain our garden area from being eroded every year. Jessie met me at the Stone quarry, where I picked the stone and he promptly came with his crew and constructed it by hand. They also set a metal gate I had picked out and back filled additional soil. The overall finished product was very effective and he even returned the following year to shore up one part of the dirt by back filling with gravel to help the weather erosion for no extra cost. They went above and beyond in my opinion."
Karen E on April 2018
We are a competitive excavating business that serves Whatcom and Skagit Counties.
We are a competitive excavating business that serves Whatcom and Skagit Counties.
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.