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Find Sump pump or interior foundation drains installers in Maple Valley

Avatar for Insulation Co., LLC - Removal & Clean Outs

Insulation Co., LLC - Removal & Clean Outs

4.96(
175
)
Approved Pro

Insulation Co., LLC - Removal & Clean Outs

4.96(
175
)
Approved Pro
Customers say: True professional
17 years of experience
Free onsite estimate

Insulation Co. LLC has been Western Washington’s trusted attic and crawl space specialist since 2008. Based in Seattle, we provide far more than insulation—we offer complete attic and crawl space restoration. Our services include insulation removal and replacement, full cleanouts, mold remediation, duct insulation and sealing, rodent exclusion and proofing, vapor barrier installation, crawl space door upgrades, and comprehensive air sealing. For moisture issues, we also install sump pumps and French drains. We even offer specialized crawl space services for manufactured homes. Whatever your home needs beneath or above, our team ensures a clean, healthy, energy-efficient space built to last.

"We were victims of the Dec 2025 flood. This co was great! Joe Estrada was so helpful in scheduling removal and new install. Great crews that worked so hard in bad conditions. Very fair pricing. Quality work. Very happy with this Co. and highly recommend them"

Wayne G on January 2026

Insulation Co. LLC has been Western Washington’s trusted attic and crawl space specialist since 2008. Based in Seattle, we provide far more than insulation—we offer complete attic and crawl space restoration. Our services include insulation removal and replacement, full cleanouts, mold remediation, duct insulation and sealing, rodent exclusion and proofing, vapor barrier installation, crawl space door upgrades, and comprehensive air sealing. For moisture issues, we also install sump pumps and French drains. We even offer specialized crawl space services for manufactured homes. Whatever your home needs beneath or above, our team ensures a clean, healthy, energy-efficient space built to last.

"We were victims of the Dec 2025 flood. This co was great! Joe Estrada was so helpful in scheduling removal and new install. Great crews that worked so hard in bad conditions. Very fair pricing. Quality work. Very happy with this Co. and highly recommend them"

Wayne G on January 2026


Avatar for P4 Construction, LLC

P4 Construction, LLC

5.00(
2
)
Approved Pro

P4 Construction, LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

Bill G on June 2024

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

Bill G on June 2024


Avatar for Groundworks

Groundworks

4.62(
85
)
Approved Pro

Groundworks

4.62(
85
)
Approved Pro
Customers say: True professional
47 local quotes requested
31 years of experience

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 Alpha Bravo Septic and Drainage, Inc.

Alpha Bravo Septic and Drainage, Inc.

4.96(
42
)
Approved Pro

Alpha Bravo Septic and Drainage, Inc.

4.96(
42
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Welcome to Alpha Bravo Septic and Drainage! We are the experts when it comes to septic systems. 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. Through ongoing education, training, and cutting edge technology, we bring the latest innovations to your project. Alpha Bravo Septic and Drainage, welcomes the opportunity to assist you with your particular project needs. Give us a call, you'll be glad you did. We look forward to working with you!

"Louis was extremely responsible. I would definitely recommend it."

Charlotte R on November 2023

Welcome to Alpha Bravo Septic and Drainage! We are the experts when it comes to septic systems. 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. Through ongoing education, training, and cutting edge technology, we bring the latest innovations to your project. Alpha Bravo Septic and Drainage, welcomes the opportunity to assist you with your particular project needs. Give us a call, you'll be glad you did. We look forward to working with you!

"Louis was extremely responsible. I would definitely recommend it."

Charlotte R on November 2023


Avatar for Rain Pros Inc

Rain Pros Inc

4.87(
389
)
Approved Pro

Rain Pros Inc

4.87(
389
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
14 local quotes requested

Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager (Joel@RainPros.com). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- customerservice@rainpros.com to immediately cue for with our service department.

"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."

Joan G on September 2025

Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager (Joel@RainPros.com). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- customerservice@rainpros.com to immediately cue for with our service department.

"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."

Joan G on September 2025


Avatar for Eco Electric, Plumbing, Heating and Air

Eco Electric, Plumbing, Heating and Air

4.09(
22
)
Approved Pro

Eco Electric, Plumbing, Heating and Air

4.09(
22
)
Approved Pro
Customers say: Super punctual
80 local quotes requested
14 years of experience

If you are looking for electrical, plumbing, and HVAC services in Seattle and beyond, Eco Electric, Plumbing, Heating and Air has all of the talent and tools needed to provide a high-quality service and 100% customer satisfaction. Please feel free to give us a call at (206) 479-0404 to set up your appointment with our wonderful technicians! With multiple years of combined electrical, plumbing, and HVAC experience, this team has answers to all of your questions and solutions to all of your problems. Company trucks are fully stocked with the tools and equipment to handle any electrical, plumbing, or HVAC services needed. We can perform services and repairs on nearly all residential and commercial spaces. For professional service with a smile, call the dedicated team at Eco Electric, Plumbing, Heating, and Air today.

"I would absolutely not recommend Eco Electric Company. It took them nearly a month just to install a furnace — a job that should’ve been done in a few days. Their troubleshooting skills are seriously lacking, and I paid the price for it. Initially, they charged me $4,500 just to “level” the old furnace, claiming that would fix the issue. It didn’t. After wasting all that time and money, they came back and told me the furnace actually needed to be replaced — and asked for another $5,500 to do it. In total, I ended up paying $10,000 just to replace one furnace, all because they couldn’t properly diagnose the problem from the start. Completely unprofessional and frustrating experience. Stay far away."

Aklilu A on March 2025

If you are looking for electrical, plumbing, and HVAC services in Seattle and beyond, Eco Electric, Plumbing, Heating and Air has all of the talent and tools needed to provide a high-quality service and 100% customer satisfaction. Please feel free to give us a call at (206) 479-0404 to set up your appointment with our wonderful technicians! With multiple years of combined electrical, plumbing, and HVAC experience, this team has answers to all of your questions and solutions to all of your problems. Company trucks are fully stocked with the tools and equipment to handle any electrical, plumbing, or HVAC services needed. We can perform services and repairs on nearly all residential and commercial spaces. For professional service with a smile, call the dedicated team at Eco Electric, Plumbing, Heating, and Air today.

"I would absolutely not recommend Eco Electric Company. It took them nearly a month just to install a furnace — a job that should’ve been done in a few days. Their troubleshooting skills are seriously lacking, and I paid the price for it. Initially, they charged me $4,500 just to “level” the old furnace, claiming that would fix the issue. It didn’t. After wasting all that time and money, they came back and told me the furnace actually needed to be replaced — and asked for another $5,500 to do it. In total, I ended up paying $10,000 just to replace one furnace, all because they couldn’t properly diagnose the problem from the start. Completely unprofessional and frustrating experience. Stay far away."

Aklilu A on March 2025


Avatar for WA EVERGREEN INSULATION LLC

WA EVERGREEN INSULATION LLC

5.00(
5
)
Approved Pro

WA EVERGREEN INSULATION LLC

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
90 local quotes requested

EVERGREEN INSULATION is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. 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!

"The estimator was great, and we have already referred Evergreen twice!"

Sydney I on October 2024

EVERGREEN INSULATION is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. 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!

"The estimator was great, and we have already referred Evergreen twice!"

Sydney I on October 2024


Avatar for Seatown Electric Plumbing Heating & Air

Seatown Electric Plumbing Heating & Air

4.85(
1,284
)
Approved Pro

Seatown Electric Plumbing Heating & Air

4.85(
1,284
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1096 local quotes requested

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"Prompt. Courteous. Expensive, but did a good job and left a tidy worksite."

Chris B on January 2026

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"Prompt. Courteous. Expensive, but did a good job and left a tidy worksite."

Chris B on January 2026


Avatar for South West Plumbing, Heating, Air, & Electric

South West Plumbing, Heating, Air, & Electric

3.58(
133
)
Approved Pro

South West Plumbing, Heating, Air, & Electric

3.58(
133
)
Approved Pro
Customers say: Super punctual
18 local quotes requested
44 years of experience

We have been serving the Greater Puget Sound area since 1982. Today we serve all of King, Pierce, and Snohomish counties. South West focuses on customer service as the differentiating factor between our company and other plumbing, heating, air, and electric contractors in the area. Our expertise, support staff, and quality work will earn your business for years to come.

"This company was helpful in solving my main issue. There were a couple complications but despite that they had good customer service and took care of what I needed."

Michele W on December 2025

We have been serving the Greater Puget Sound area since 1982. Today we serve all of King, Pierce, and Snohomish counties. South West focuses on customer service as the differentiating factor between our company and other plumbing, heating, air, and electric contractors in the area. Our expertise, support staff, and quality work will earn your business for years to come.

"This company was helpful in solving my main issue. There were a couple complications but despite that they had good customer service and took care of what I needed."

Michele W on December 2025


Avatar for South West Plumbing & Waterheaters, LLC

South West Plumbing & Waterheaters, LLC

4.59(
35
)
Approved Pro

South West Plumbing & Waterheaters, LLC

4.59(
35
)
Approved Pro
Customers say: True professional
164 local quotes requested
46 years of experience

Southwest Plumbing is the 1 to call for all of your plumbing, heating, air & electric needs! Our team always provides up-front pricing, so you can be sure there are never any surprises. The team is comprised of a professional customer service team, licensed technicians and effective managers where an expert is never far away! Give us a call today, we are here to serve you!

"Job done efficiently"

Fred P on January 2025

Southwest Plumbing is the 1 to call for all of your plumbing, heating, air & electric needs! Our team always provides up-front pricing, so you can be sure there are never any surprises. The team is comprised of a professional customer service team, licensed technicians and effective managers where an expert is never far away! Give us a call today, we are here to serve you!

"Job done efficiently"

Fred P on January 2025

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FAQs for sump pump or interior foundation drains installation projects in Maple Valley, WA

Most residential pumps draw approximately 1,300 to 2,900 watts when they first start, then settle at roughly 800 to 1,050 watts during normal operation. The exact number depends on the motor’s horsepower and how often the float switch tells the pump to run. Even at the high end, the electricity cost is minor compared with the expense of cleaning up a flooded basement.

Grab a ruler and an empty 18‑inch‑wide pit. During a steady rain, time how much the water rises in one minute. Multiply that depth (in inches) by 60 to calculate gallons per hour, then add 50% for safety. If the result tops 2,100 gallons per hour—about 35 gallons a minute—you’ll need a 3/4‑horsepower unit. Anything lower, and a 1/3- or 1/2-horsepower pump should do the trick.

Loud rattling, constant cycling, or shuddering vibrations are the pump’s way of telling you it’s on its last legs. Musty smells, higher electric bills, and visible rust are other red flags. If the unit is 10 years old or older and exhibits any of these symptoms, replace it before the next heavy rain turns your basement into a wading pool.

You don’t have to hire a licensed plumber, but you should still bring in someone who installs sump pumps for a living—whether that’s a plumber, basement‑waterproofing specialist, or experienced handyman. They know the local codes, can wire the pump safely, and will test the system before they leave. Skipping professional help might void the warranty and could leave you with a pump that fails when you need it most.

Not every basement needs a pump, but if your home sits in a floodplain, has a high water table, or has ever taken on water during a storm, a sump pump is inexpensive insurance. For basements that only struggle with condensation or the occasional damp spot, sealing cracks and improving drainage may be all that is needed.

The Maple Valley, WA homeowners’ guide to sump pump or interior foundation drains installations

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