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43 Basement leak repair pros in Sumas
In 2006, Dan Malsch founded Rainy Day Crawl Space & Basement and brought residential and commercial foundation repair solutions to the north western Washington area. In 2024, Rainy Day Basement & Crawl Space joined forces with Groundworks, the nation’s leading and fastest-growing foundation repair and water management solutions provider and rebranded under the Groundworks name. They will continue to offer industry-leading technology and resources to more customers across northwest Washington. Groundworks provides elite customer service and quality home solutions for all foundation repair, basement waterproofing, and concrete repair needs. Call for your FREE inspection today!
"We had two crews working to address the water in our crawlspace. Thanks to David, Derick, Jordan and Sam, along with Wyatt, Tucker, and Quentin! And thanks to Kirsten for coming out initially and explaining the Groundworks approach. Though not new to the Pacific NW, we had recently located to the far NW corner of WA. The proposed work was finished in record time (and they managed to get us in a week before the scheduled work). This is no small patch but a wholesale addressing of the problem. It wasn’t cheap, but the thoroughness of the solution is keeping us comfortable and dry! Thanks Groundworks!"
William M on March 2025
In 2006, Dan Malsch founded Rainy Day Crawl Space & Basement and brought residential and commercial foundation repair solutions to the north western Washington area. In 2024, Rainy Day Basement & Crawl Space joined forces with Groundworks, the nation’s leading and fastest-growing foundation repair and water management solutions provider and rebranded under the Groundworks name. They will continue to offer industry-leading technology and resources to more customers across northwest Washington. Groundworks provides elite customer service and quality home solutions for all foundation repair, basement waterproofing, and concrete repair needs. Call for your FREE inspection today!
"We had two crews working to address the water in our crawlspace. Thanks to David, Derick, Jordan and Sam, along with Wyatt, Tucker, and Quentin! And thanks to Kirsten for coming out initially and explaining the Groundworks approach. Though not new to the Pacific NW, we had recently located to the far NW corner of WA. The proposed work was finished in record time (and they managed to get us in a week before the scheduled work). This is no small patch but a wholesale addressing of the problem. It wasn’t cheap, but the thoroughness of the solution is keeping us comfortable and dry! Thanks Groundworks!"
William M 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
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
Here at SKILLWERX CONSTRUCTION INC. we offer all your home needs. We specialize in: - KITCHEN/BATHROOM REMODELS - HOME ADDITIONS - INTERIOR/EXTERIOR PAINTING - DECKS - CONCRETE And so much more. Give us a call. Fernando S. 360-318-6438
"Very well they were very responsible and paid attention to detail - sought my opinion when needed"
DeeDee L on December 2022
Here at SKILLWERX CONSTRUCTION INC. we offer all your home needs. We specialize in: - KITCHEN/BATHROOM REMODELS - HOME ADDITIONS - INTERIOR/EXTERIOR PAINTING - DECKS - CONCRETE And so much more. Give us a call. Fernando S. 360-318-6438
"Very well they were very responsible and paid attention to detail - sought my opinion when needed"
DeeDee L on December 2022
we are a family owned license and bonded General Contracting company that takes pride in making our clients building experience as professional and positive as humanly possible. Our clients satisfaction is our number one priority. We have a team of professional craftsman at our disposal to make sure that each project is done in a timely manner never jeopardizing quality. We are able to complete projects from start to completion with our team and partners. as CEO my company can self perform every building aspect of the job from the plans and design phase down to completion. thank you for considering our company. here is a list of what our company provides design builds custom builds Excavation All forms of concrete framing professional installation of all siding from Cedar LP, Hardy plank etc. Drywall , hanging , mud , texture specialize in top quality interior finish’s custom cabinet builds
"Michael’s work is excellent quality. High attention to detail."
sarah f on December 2024
we are a family owned license and bonded General Contracting company that takes pride in making our clients building experience as professional and positive as humanly possible. Our clients satisfaction is our number one priority. We have a team of professional craftsman at our disposal to make sure that each project is done in a timely manner never jeopardizing quality. We are able to complete projects from start to completion with our team and partners. as CEO my company can self perform every building aspect of the job from the plans and design phase down to completion. thank you for considering our company. here is a list of what our company provides design builds custom builds Excavation All forms of concrete framing professional installation of all siding from Cedar LP, Hardy plank etc. Drywall , hanging , mud , texture specialize in top quality interior finish’s custom cabinet builds
"Michael’s work is excellent quality. High attention to detail."
sarah f on December 2024
We are a new local business with 30 years of experience in the industry. We can act as General contractors on a large project or take on smaller sub-contracts. Depending on the job we bill for time and materials, or a lump sum total with 40%-50% due at signing of the contract
"Paul Burlingame (and team) constructed a basement garage and attached ADU on the side of our 100 year old house - no small feat at all. Initially we were a little guarded because of all the horror stories you hear about shiesty contractors, but our experience with Paul has been nothing but positive throughout the entire build. He has a keen attention to detail and values good quality work. For example, there were a couple crucial details that were not described by our engineer, and Paul worked hard to determine the right course of action. In the end, what he came up with was better than we could have imagined. Not only is he personable and a knowledgeable contractor, he has an eye for aesthetic which was a delight as we discussed design options, from trim details to pergola hardware. In the end, Paul and his team built us a stunning 800 sf 2 story ADU and 400 sf basement garage, that feels spacious and contemporary while beautifully tying together with the exterior of our existing 1920s Tudor Revival home. I can not recommend Burlingame Contracting enough! Thank you Paul!!"
Claire C on December 2022
We are a new local business with 30 years of experience in the industry. We can act as General contractors on a large project or take on smaller sub-contracts. Depending on the job we bill for time and materials, or a lump sum total with 40%-50% due at signing of the contract
"Paul Burlingame (and team) constructed a basement garage and attached ADU on the side of our 100 year old house - no small feat at all. Initially we were a little guarded because of all the horror stories you hear about shiesty contractors, but our experience with Paul has been nothing but positive throughout the entire build. He has a keen attention to detail and values good quality work. For example, there were a couple crucial details that were not described by our engineer, and Paul worked hard to determine the right course of action. In the end, what he came up with was better than we could have imagined. Not only is he personable and a knowledgeable contractor, he has an eye for aesthetic which was a delight as we discussed design options, from trim details to pergola hardware. In the end, Paul and his team built us a stunning 800 sf 2 story ADU and 400 sf basement garage, that feels spacious and contemporary while beautifully tying together with the exterior of our existing 1920s Tudor Revival home. I can not recommend Burlingame Contracting enough! Thank you Paul!!"
Claire C on December 2022
Here at Sherman General Contracting, we pride ourselves on precision craftsmanship and quality work. Our team specializes in multiple scopes of residential and commercial construction. Including - remodel, new construction, addition, ADU/AAD, custom timber, deck, all exterior and interior assemblies, concrete, excavation, tree removal and more. We bring a positive energy to your project with a high attention to detail and ability to adapt and overcome any obstacle we encounter. Our team is professional, while maintaining a candid approach to our projects which leaves our customers feeling like they can approach us with questions, concerns, and anything in between.
"Sam and his crew are fantastic, they were professional and courteous. Work was completed on time and under budget. I would hire Sherman General again without hesitation."
Andrew E on December 2024
Here at Sherman General Contracting, we pride ourselves on precision craftsmanship and quality work. Our team specializes in multiple scopes of residential and commercial construction. Including - remodel, new construction, addition, ADU/AAD, custom timber, deck, all exterior and interior assemblies, concrete, excavation, tree removal and more. We bring a positive energy to your project with a high attention to detail and ability to adapt and overcome any obstacle we encounter. Our team is professional, while maintaining a candid approach to our projects which leaves our customers feeling like they can approach us with questions, concerns, and anything in between.
"Sam and his crew are fantastic, they were professional and courteous. Work was completed on time and under budget. I would hire Sherman General again without hesitation."
Andrew E on December 2024
John's Waterproofing Co. is the premier waterproofing company serving in Oregon and Washington for over 50 years. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!
"John’s was quick to respond and were able to get us on the schedule quickly. They communicated effectively and did quality work. I will work with John’s again."
Matt H on October 2022
John's Waterproofing Co. is the premier waterproofing company serving in Oregon and Washington for over 50 years. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!
"John’s was quick to respond and were able to get us on the schedule quickly. They communicated effectively and did quality work. I will work with John’s again."
Matt H on October 2022
Emerybuilders, 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 customers' interests, and make their concerns the basis of our business.
"Ean was punctual, knowledgeable and professional. I recommend him for your home projects."
Pierre C on January 2025
Emerybuilders, 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 customers' interests, and make their concerns the basis of our business.
"Ean was punctual, knowledgeable and professional. I recommend him for your home projects."
Pierre C on January 2025
FAST PACE SERVICES LLC is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"Very reasonably priced, were able to start the job right away, and completed it quickly. When I need more work done, I will call on them again."
Charles H on March 2025
FAST PACE SERVICES LLC is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"Very reasonably priced, were able to start the job right away, and completed it quickly. When I need more work done, I will call on them again."
Charles H on March 2025
We are a local family-owned business that opened its doors in 2004 with our main goal of providing the best customer experience that we can to every single customer from the smallest to the biggest projects and maintain a long term relationship. We are ONE-STOP-SHOP for ALL Energy Efficiency needs. We are located in Renton, WA and gladly serving over 25 cities in the Washington Puget sound area. Our affordable, licensed, insured, and trained workers are here to help make your home safe, energy-efficient and comfortable. We can do: Energy efficiency upgrades and planning, Attic & Crawl space clean up and decontamination, Attic & Crawl space insulation installation. Vapor & Radiant barriers installation. Air Ducts & Dryer vent cleaning & replacement. HVAC, Ventilation installation and repair. Solar fans. HVAC Lighting installation, Generators, Surge protectors.
We are a local family-owned business that opened its doors in 2004 with our main goal of providing the best customer experience that we can to every single customer from the smallest to the biggest projects and maintain a long term relationship. We are ONE-STOP-SHOP for ALL Energy Efficiency needs. We are located in Renton, WA and gladly serving over 25 cities in the Washington Puget sound area. Our affordable, licensed, insured, and trained workers are here to help make your home safe, energy-efficient and comfortable. We can do: Energy efficiency upgrades and planning, Attic & Crawl space clean up and decontamination, Attic & Crawl space insulation installation. Vapor & Radiant barriers installation. Air Ducts & Dryer vent cleaning & replacement. HVAC, Ventilation installation and repair. Solar fans. HVAC Lighting installation, Generators, Surge protectors.
Basement leak repair services FAQs
The cost to finish a basement is $18,400 for the average homeowner. However, this cost could be as little as $2,800 or as much as $34,500, depending on the basement size and the materials needed. If your basement is already outfitted with electrical and plumbing, expect the cost to fall on the lower end.
For example, the drywall cost for this project averages around $1,750, but other features, like hiring a plumber, cost between $45 and $200 per hour.
The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing.
If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.
Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.
Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms.
Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.
Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.
The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in.
If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.
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