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Avatar for Groundworks

Groundworks

4.62(
85
)
Approved Pro

Groundworks

4.62(
85
)
Approved Pro
Customers say: True professional
30 years of experience
Free onsite estimate

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.

"Fixed my foundation. Thank you"

Ivan K on December 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.

"Fixed my foundation. Thank you"

Ivan K on December 2025


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

5.00(
10
)
Approved Pro

TerraFirma Foundation Systems

5.00(
10
)
Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

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.

"Great; competitive price, installation went great, friendly and responsive staff in person and office"

Andrew M on February 2020

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.

"Great; competitive price, installation went great, friendly and responsive staff in person and office"

Andrew M on February 2020


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.51(
67
)
Approved Pro

TerraFirma Foundation Systems

4.51(
67
)
Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

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.

"Had a sump pump installed. Haven’t had a repeat of the problem."

Edward H on December 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.

"Had a sump pump installed. Haven’t had a repeat of the problem."

Edward H on December 2025


Avatar for Elias Construction Services LLC

Elias Construction Services LLC

4.71(
7
)
Approved Pro

Elias Construction Services LLC

4.71(
7
)
Approved Pro
Customers say: Terrific value
17 years of experience
Free onsite estimate

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's . It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Elias Contruction provided a detailed estimate after inspecting the roof and making some qualified recommendations. The project required a few change orders that were not clarified in writing. I would recommend hiring Elias if you get changes in writing. They cleaned up pretty well although they missed a few things due to finishing in the dark. Overall satisfied with the job and cost was 60% of other bids due to sheathing adjustment."

Kelly W on January 2023

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's . It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Elias Contruction provided a detailed estimate after inspecting the roof and making some qualified recommendations. The project required a few change orders that were not clarified in writing. I would recommend hiring Elias if you get changes in writing. They cleaned up pretty well although they missed a few things due to finishing in the dark. Overall satisfied with the job and cost was 60% of other bids due to sheathing adjustment."

Kelly W on January 2023


Avatar for Ram Jack West

Ram Jack West

4.25(
6
)
Approved Pro

Ram Jack West

4.25(
6
)
Approved Pro
Customers say: Terrific value
24 years of experience
Free onsite estimate

We're dedicated to providing our clients with the very best in foundation repair, house lifting, pile driving, drilling and a variety of other projects. With over 15 years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients and guarantee your satisfaction.

"The sales man offered me leveling and light of my foundation. The end result was my doors not being able to close, more cracking in my sheet rock on the walls and on the ceiling. The house is not level and now Iâ  m seeking options to fix this whole debacle. Ram Jack West is sales based, not service based. Please do research before you make a $30,000 to have hire a company to repair your foundation, working with them is one of my biggest lifetime regrets."

Steven R on September 2023

We're dedicated to providing our clients with the very best in foundation repair, house lifting, pile driving, drilling and a variety of other projects. With over 15 years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients and guarantee your satisfaction.

"The sales man offered me leveling and light of my foundation. The end result was my doors not being able to close, more cracking in my sheet rock on the walls and on the ceiling. The house is not level and now Iâ  m seeking options to fix this whole debacle. Ram Jack West is sales based, not service based. Please do research before you make a $30,000 to have hire a company to repair your foundation, working with them is one of my biggest lifetime regrets."

Steven R on September 2023


Avatar for Venegas Construction LLC

Venegas Construction LLC

5.00(
1
)
Approved Pro

Venegas Construction LLC

5.00(
1
)
Approved Pro
4 years of experience
Free onsite estimate

Venegas Construction LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

"They did a wonderful job!!! "

carla s on March 2025

Venegas Construction LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

"They did a wonderful job!!! "

carla s on March 2025


Avatar for Seattle Concrete Core Drilling & Slab Sawing LLC

Seattle Concrete Core Drilling & Slab Sawing LLC

New on AngiNew on Angi
Approved Pro

Seattle Concrete Core Drilling & Slab Sawing LLC

New on AngiNew on Angi
Approved Pro
44 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 40 years of core drilling and concrete slab sawing experience. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 40 years of core drilling and concrete slab sawing experience. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!


Avatar for Groundworks

Groundworks

New on AngiNew on Angi
Approved Pro

Groundworks

New on AngiNew on Angi
Approved Pro
25 years of experience
Free onsite estimate

Based in Phoenix, AZ, we specialize in foundation repair, basement waterproofing, concrete leveling, and crawl space repair. Serving Arizona, we deliver reliable solutions for businesses and commercial properties. Contact us today!

Based in Phoenix, AZ, we specialize in foundation repair, basement waterproofing, concrete leveling, and crawl space repair. Serving Arizona, we deliver reliable solutions for businesses and commercial properties. Contact us today!


Avatar for SlabJack Geotechnical

SlabJack Geotechnical

5.00(
62
)

SlabJack Geotechnical

5.00(
62
)
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family owned and operated business with locations in Spokane, Greater Seattle, Tri-Cities and East Wenatchee WA. Our company's main office is in East Wenatchee, WA. We have been in business since 2011, our contractor license is #slabjg*833k2 we are fully insured (1,000,000) and bonded (12,000) and carry all the appropriate insurances to work on your property without any liability to you. Slabjack Geotechnicals polyurethane injection SlabJacking is far superior to last centuries Mudjacking. Less invasive, longer lasting, better aesthetically and with a superior warranty. We raise settled concrete porches, patios, pool decks, shop floors, driveways, sidewalks, garage and basement floors, if it's a slab we raise it! We also underseal slabs with voids, rocking driveway and warehouse slabs. If you suspect voids we have the exact material for the problem. We seal leaking culverts, large diameter pipe, Seawall and Bulkheads, and under-seal concrete ditches and spillways. We also seal many thousands of feet of control joints and cracks in concrete using the best Silicones, Polyurea's and Polyurethanes. Other common names for our services are "pressure grouting" "chemical grouting" "SlabJacking" "Polylevel" and "Mudjacking" We are licensed in the state of Washington and Idaho. We accept Visa, MasterCard and Discover in addition to Business & Personal checks.

"Justin and Dustin were very professional and did a great job with a panel lift and filling cracks in the HOA's concrete cart path."

Rick B on August 2025

We are a family owned and operated business with locations in Spokane, Greater Seattle, Tri-Cities and East Wenatchee WA. Our company's main office is in East Wenatchee, WA. We have been in business since 2011, our contractor license is #slabjg*833k2 we are fully insured (1,000,000) and bonded (12,000) and carry all the appropriate insurances to work on your property without any liability to you. Slabjack Geotechnicals polyurethane injection SlabJacking is far superior to last centuries Mudjacking. Less invasive, longer lasting, better aesthetically and with a superior warranty. We raise settled concrete porches, patios, pool decks, shop floors, driveways, sidewalks, garage and basement floors, if it's a slab we raise it! We also underseal slabs with voids, rocking driveway and warehouse slabs. If you suspect voids we have the exact material for the problem. We seal leaking culverts, large diameter pipe, Seawall and Bulkheads, and under-seal concrete ditches and spillways. We also seal many thousands of feet of control joints and cracks in concrete using the best Silicones, Polyurea's and Polyurethanes. Other common names for our services are "pressure grouting" "chemical grouting" "SlabJacking" "Polylevel" and "Mudjacking" We are licensed in the state of Washington and Idaho. We accept Visa, MasterCard and Discover in addition to Business & Personal checks.

"Justin and Dustin were very professional and did a great job with a panel lift and filling cracks in the HOA's concrete cart path."

Rick B on August 2025


Avatar for Alternative Surfaces

Alternative Surfaces

4.85(
20
)

Alternative Surfaces

4.85(
20
)
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Alternative Surfaces use only the highest quality, commercial grade coatings on the market – providing superior durability and finish over conventional coatings, for a floor that is long lasting and easy to maintain. For discerning customers looking to create spaces that look and feel good, our products encourage them to ditch their shoes and discover the invigorating freedom of barefoot living. Our products generate energized, vibrant spaces in your home while also providing hard-wearing, sustainable surfaces for commercial installations. Products include stone carpet finishes, polished concrete and seamless surfaces in a range of hues which can be customized with designs for the most discerning client. Alternative Surfaces offers you the state of the art in floor coating services designed to fit your needs. Our coatings are formulated specifically for high-impact and abrasion resistance at the most competitive prices. Our applicators use the most professional equipment and procedures to assure speed and simplicity of application. Our advanced equipment is custom manufactured for high production, top quality preparation methods for any and all types of floor conditions. From blueprint to reality, Alternative Surfaces delivers a full-service approach that blends texture, color and a durable eco-friendly finishes, creating the look and atmosphere you desire. We offer the tools, creative vision and technological expertise to propel your design imagination to new heights. Create ambiance through innovative surface styles. Leave a bold, lasting impression.

"This company is awesome. Very communicative, responsive, ethical, on time and even went the extra mile when it appeared some bubbles appeared. They came back immediately, re-sanded the floor and put another coat on. The floor looks fabulous and I will definitely recommend them to anyone else looking for this service and of course, these people will be the only company I use in the future. Thank you David and all of your employees for such great service and great work. AWESOME"

Richard L on June 2020

Alternative Surfaces use only the highest quality, commercial grade coatings on the market – providing superior durability and finish over conventional coatings, for a floor that is long lasting and easy to maintain. For discerning customers looking to create spaces that look and feel good, our products encourage them to ditch their shoes and discover the invigorating freedom of barefoot living. Our products generate energized, vibrant spaces in your home while also providing hard-wearing, sustainable surfaces for commercial installations. Products include stone carpet finishes, polished concrete and seamless surfaces in a range of hues which can be customized with designs for the most discerning client. Alternative Surfaces offers you the state of the art in floor coating services designed to fit your needs. Our coatings are formulated specifically for high-impact and abrasion resistance at the most competitive prices. Our applicators use the most professional equipment and procedures to assure speed and simplicity of application. Our advanced equipment is custom manufactured for high production, top quality preparation methods for any and all types of floor conditions. From blueprint to reality, Alternative Surfaces delivers a full-service approach that blends texture, color and a durable eco-friendly finishes, creating the look and atmosphere you desire. We offer the tools, creative vision and technological expertise to propel your design imagination to new heights. Create ambiance through innovative surface styles. Leave a bold, lasting impression.

"This company is awesome. Very communicative, responsive, ethical, on time and even went the extra mile when it appeared some bubbles appeared. They came back immediately, re-sanded the floor and put another coat on. The floor looks fabulous and I will definitely recommend them to anyone else looking for this service and of course, these people will be the only company I use in the future. Thank you David and all of your employees for such great service and great work. AWESOME"

Richard L on June 2020

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Patios questions, answered by experts

Yes, concrete steps need rebar to reinforce the structure and ensure it can hold weight over time. Place a lattice of rebar inside the form before pouring concrete to give the steps their maximum strength. Tie each intersection together with rebar ties to hold the structure all together. Without rebar, concrete steps can sink, crumble, and lose their longevity.

Paver patios are often considered the most durable option. Expensive options include pavers of natural stone like granite, and more affordable choices include concrete and brick. All these materials are weather-resistant and are easy to replace individually if damaged. When installed over a well-compacted base and maintained correctly, paver patios can last 50 years or more, making them a long-lasting outdoor choice.

The short answer is that the cost to build a staircase largely depends on what material they’re made out of and how many you need. Wood stairs cost about $50 to $100 per step for materials alone, while labor costs an additional $100 to $250 per step. The cost increases for more expensive materials such as glass or concrete.

Regular cleaning, sealing, and crack inspections help prolong the surface’s life and maintain safety.

The repair method for a damaged concrete patio depends on the type of damage. For surface cracks, a concrete crack filler is a quick and simple fix. For larger cracks or uneven slabs, you may need to hire a professional to pump a cementitious material under the sunken portion to lift it back into place. For heavy spalling and other surface damage, resurfacing may be the best and most affordable option. This includes pouring a new layer of concrete over the old layer.

The Cosmopolis, WA homeowners’ guide to patio services

From average costs to expert advice, get all the answers you need to get your job done.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"