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Verified Reviews for Percolation Testing pros in Mercer Island, WA
*The Angi rating for Percolation Testing companies in Mercer Island, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.
*The HomeAdvisor rating for Percolation Testing companies in Mercer Island, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.
Last update on December 17, 2025
Find Percolation testing pros in Mercer Island

Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
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.
"Very easy to work with. Crews were efficient, conscientious and polite. They took photos of their work and took the time to explain what they were doing. Overall I was very pleased with the customer service and result."
Eric D on November 2025
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.
"Very easy to work with. Crews were efficient, conscientious and polite. They took photos of their work and took the time to explain what they were doing. Overall I was very pleased with the customer service and result."
Eric D on November 2025
Near Me Roofing Company
Near Me Roofing Company
Near Me Roofing Company is a Seattle-based roofing company that has an outstanding reputation for high quality performance and a strong work ethic. Our local roofing experts bring our clients years of experience and deliver a solid final product on any type of project, either residential or commercial. Near Me Roofing Company is 100% family-owned and we have been serving the Greater Seattle community for over 5 years. Our mission is to serve our clients with the finest customer care, excellent products and a superior result, at fair and affordable prices. Give us a call today to book your free estimate with Near Me Roofing Company.
"I had a huge hole in my roof and we had rain for days! Ari and Elijah showed my video of how bad the damage was, he was transparent with the process and mobilized the team quickly to make the repairs before the rain. Great work"
neeve j on April 2022
Near Me Roofing Company is a Seattle-based roofing company that has an outstanding reputation for high quality performance and a strong work ethic. Our local roofing experts bring our clients years of experience and deliver a solid final product on any type of project, either residential or commercial. Near Me Roofing Company is 100% family-owned and we have been serving the Greater Seattle community for over 5 years. Our mission is to serve our clients with the finest customer care, excellent products and a superior result, at fair and affordable prices. Give us a call today to book your free estimate with Near Me Roofing Company.
"I had a huge hole in my roof and we had rain for days! Ari and Elijah showed my video of how bad the damage was, he was transparent with the process and mobilized the team quickly to make the repairs before the rain. Great work"
neeve j on April 2022

Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
We will beat any estimate by 5%. $65 off First time customer call. We offer 24/7 emergency plumbing services with a guarantee for our technicians as well as the materials we use. Drain Pro is delighted to be of use to its clients and enjoy the fact that we can be of help to our clients, many of whom call us in great distress.You can directly speak to a plumber when calling so that the problem can be understood right away and handled accordingly. We offer free estimates and second opinions. Drain Pro uses the latest equipment in the industry and our highly trained technicians have passed a background check. We are very time efficient, respectful of our clients and their homes and always work on schedule. Prices are given up front with no hidden charges. We offer senior discounts, military discount , with valid ID's.
"They came within a day and converted by old 3 knob setup to a more modern 1 knob setup which required cutting and reconfiguring pipes. The whole job was done in a half day and the shower/bath was repaired. Very nice plumber and front office team as well."
Thomasq P on June 2022
We will beat any estimate by 5%. $65 off First time customer call. We offer 24/7 emergency plumbing services with a guarantee for our technicians as well as the materials we use. Drain Pro is delighted to be of use to its clients and enjoy the fact that we can be of help to our clients, many of whom call us in great distress.You can directly speak to a plumber when calling so that the problem can be understood right away and handled accordingly. We offer free estimates and second opinions. Drain Pro uses the latest equipment in the industry and our highly trained technicians have passed a background check. We are very time efficient, respectful of our clients and their homes and always work on schedule. Prices are given up front with no hidden charges. We offer senior discounts, military discount , with valid ID's.
"They came within a day and converted by old 3 knob setup to a more modern 1 knob setup which required cutting and reconfiguring pipes. The whole job was done in a half day and the shower/bath was repaired. Very nice plumber and front office team as well."
Thomasq P on June 2022

Seatown Electric Plumbing Heating & Air
Seatown Electric Plumbing Heating & Air
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.
"The employee called me a sandn*gger. Do not hire these ppl."
Matt R on October 2025
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.
"The employee called me a sandn*gger. Do not hire these ppl."
Matt R on October 2025

Johnson Custom Builders
Johnson Custom Builders
Current Super Service Award Winner for 2019 seven years running! Johnson Custom Builders is a Design Builder. Our approach is simple. It all starts with listening. We work closely with our clients to understand everything from their needs to their design preferences. Then we go to work helping them exceed their goals. www.johnsoncustombuilders.com Our process is completely transparent. Our estimates are designed to provide realistic expectations not best-case scenarios. For us, communication is key and we keep you completely informed every step of the way communicating in a way that helps you anticipate and act to effectively engineer the best possible solutions every step of the way. At Johnson Custom Builders our approach is never just about managing timelines and budgets its about delivering on promises and helping you realize dreams. One look at a Johnson Custom build and you'll immediately understand why so many discriminating customers recommend us to their friends looking for a higher level of customized home building. It's not just about the attention to detail or use of the highest-quality materials or even the custom-crafted details. It's about the personalization. Personalization that comes from a builder that not only knows how to listen but also how to anticipate, communicate and most of all deliver on a promise. A native of Kirkland, Washington, founder Ryan Johnson shares the same core values as the community he has always called home: Integrity, Honesty and Originality. He's been actively designing, building and remodeling homes in the area for over 25 years. And in that time, he has earned a stellar reputation for providing outstanding results crafted with uncompromising integrity and quality. Hes also earned a reputation for delivering on his promises. A+ rating on the Better Business Bureau (BBB) !
"Ryan and his crew did a great job building out Car Port. From the first time we talked to a completed project was about 6 or 7 weeks. He and his crew were very professional and, came on time, and exceeded my expectations with respect to the quality, time to finish, etc. Ryan also collaborated with another team of professionals that were contracted to place Solar Pannels onto the Car Port that was just completed. He made sure that all of their requirements and spec were addressed while building the Car Port. THANK YOU Ryan and Co!"
Feliks S on October 2025
Current Super Service Award Winner for 2019 seven years running! Johnson Custom Builders is a Design Builder. Our approach is simple. It all starts with listening. We work closely with our clients to understand everything from their needs to their design preferences. Then we go to work helping them exceed their goals. www.johnsoncustombuilders.com Our process is completely transparent. Our estimates are designed to provide realistic expectations not best-case scenarios. For us, communication is key and we keep you completely informed every step of the way communicating in a way that helps you anticipate and act to effectively engineer the best possible solutions every step of the way. At Johnson Custom Builders our approach is never just about managing timelines and budgets its about delivering on promises and helping you realize dreams. One look at a Johnson Custom build and you'll immediately understand why so many discriminating customers recommend us to their friends looking for a higher level of customized home building. It's not just about the attention to detail or use of the highest-quality materials or even the custom-crafted details. It's about the personalization. Personalization that comes from a builder that not only knows how to listen but also how to anticipate, communicate and most of all deliver on a promise. A native of Kirkland, Washington, founder Ryan Johnson shares the same core values as the community he has always called home: Integrity, Honesty and Originality. He's been actively designing, building and remodeling homes in the area for over 25 years. And in that time, he has earned a stellar reputation for providing outstanding results crafted with uncompromising integrity and quality. Hes also earned a reputation for delivering on his promises. A+ rating on the Better Business Bureau (BBB) !
"Ryan and his crew did a great job building out Car Port. From the first time we talked to a completed project was about 6 or 7 weeks. He and his crew were very professional and, came on time, and exceeded my expectations with respect to the quality, time to finish, etc. Ryan also collaborated with another team of professionals that were contracted to place Solar Pannels onto the Car Port that was just completed. He made sure that all of their requirements and spec were addressed while building the Car Port. THANK YOU Ryan and Co!"
Feliks S on October 2025
Belle Maison Interior Design
Belle Maison Interior Design
With over 20 years of interior design experience, Belle Maison brings a keen awareness of what it takes to create timeless designs using texture, color, lighting, textiles, and interior finishes. We have the passion and ability to transform your home into a welcoming and comfortable environment. Please note we do not do window treatment repair, only consultations and installations of new window treatments. We are Owner-operated. Uses subs for remodeling. Charges by the hour. Travel charges may apply. No service fees. May contact by email. Extra charge for 24 hour emergency service.
"Gina is awesome! We love all the ideas and help she provided in redesigning our home!"
Brian A on August 2025
With over 20 years of interior design experience, Belle Maison brings a keen awareness of what it takes to create timeless designs using texture, color, lighting, textiles, and interior finishes. We have the passion and ability to transform your home into a welcoming and comfortable environment. Please note we do not do window treatment repair, only consultations and installations of new window treatments. We are Owner-operated. Uses subs for remodeling. Charges by the hour. Travel charges may apply. No service fees. May contact by email. Extra charge for 24 hour emergency service.
"Gina is awesome! We love all the ideas and help she provided in redesigning our home!"
Brian A on August 2025

Stream Water Heaters
Stream Water Heaters
At Stream Water Heaters, we specialize in providing professional water heater installations, ensuring you receive the best service for tankless, gas, or electric systems at affordable prices. Servicing Snohomish, King, and Pierce counties..
"Competitive price, to have a new water heater installed. Great communication, professional and friendly. Would definitely reccond."
Judy C on November 2025
At Stream Water Heaters, we specialize in providing professional water heater installations, ensuring you receive the best service for tankless, gas, or electric systems at affordable prices. Servicing Snohomish, King, and Pierce counties..
"Competitive price, to have a new water heater installed. Great communication, professional and friendly. Would definitely reccond."
Judy C on November 2025

Stream Water Heaters
Stream Water Heaters
At Stream Water Heaters, we specialize in providing professional water heater installations, ensuring you receive the best service for tankless, gas, or electric systems at affordable prices. Servicing Snohomish, King, and Pierce counties..
"Good service and great prices 👍"
Rajan M on November 2025
At Stream Water Heaters, we specialize in providing professional water heater installations, ensuring you receive the best service for tankless, gas, or electric systems at affordable prices. Servicing Snohomish, King, and Pierce counties..
"Good service and great prices 👍"
Rajan M on November 2025

A & M General Construction LLC
A & M General Construction LLC
A & M General 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 customers' interests, and make their concerns the basis of our business.
"Alan’s Cariaso did a fine job. Additionally, he was respectful and pleasant. I appreciated that seemed to know what to do and got it done efficiently. "
Lisa C on September 2025
A & M General 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 customers' interests, and make their concerns the basis of our business.
"Alan’s Cariaso did a fine job. Additionally, he was respectful and pleasant. I appreciated that seemed to know what to do and got it done efficiently. "
Lisa C on September 2025

DP Palmer Painting & Restoration
DP Palmer Painting & Restoration
DP Palmer Painting & Restoration has been proudly offering design, restoration, and painting services in Seattle, Bellevue and Renton areas for many years. Our priority is the satisfaction of our clients, so we always take the time to ensure you are satisfied with the design of your space before starting any work. Our licensed, insured, and bonded painters and designers have years of experience in small and large painting projects in Seattle. They enjoy working closely with clients to ensure each project is perfect down to the last detail. When hiring DP Palmer Painting & Restoration for your interior and exterior painting, wall restoration and commercial design area painting needs, we ensure that the experience is completely hassle-free. We will personally empty the spaces to be painted with the utmost care, packaging fragile objects and doing all of the heavy lifting for you. You can rest assured that your floors and carpets will be well protected and that our professional painters will work diligently to ensure the quality of their work. We will never rush a residential or commercial painting job. We will use top quality paint and tools to complete the contract to your specifications. We will never leave any tools, stains or materials behind that you must clean up. We will always stand behind our work and satisfaction is 100% guaranteed. Additional contact name - Suzanne Hinton. Additional email - [email protected].
"Larry took on the incredibly ambitious project of renovating our 1914 Craftsman home, repainting the exterior, expanding the primary bathroom, refinishing floors, decking, stairwells, expanding and updating the kitchen, updating electrical and heating systems to modern standards, and so much more.The project is almost complete, but we were so excited that we wanted to write the review anyway! Throughout the process, Larry and his crew worked tirelessly to get things done, always focusing on quality and making sure we were happy with the work. Even partway through the project, neighbors were already commenting on how much they loved his color choices, and how much he and his crew cared about the project. Even given how large the project was, Larry and his crew tackled it head-on and got it done; he really brought out what made this home so special to us. We're really happy to have had the chance to work with Larry, and are really appreciating how wonderful our new home is thanks to him and his crew."
Chris G on March 2025
DP Palmer Painting & Restoration has been proudly offering design, restoration, and painting services in Seattle, Bellevue and Renton areas for many years. Our priority is the satisfaction of our clients, so we always take the time to ensure you are satisfied with the design of your space before starting any work. Our licensed, insured, and bonded painters and designers have years of experience in small and large painting projects in Seattle. They enjoy working closely with clients to ensure each project is perfect down to the last detail. When hiring DP Palmer Painting & Restoration for your interior and exterior painting, wall restoration and commercial design area painting needs, we ensure that the experience is completely hassle-free. We will personally empty the spaces to be painted with the utmost care, packaging fragile objects and doing all of the heavy lifting for you. You can rest assured that your floors and carpets will be well protected and that our professional painters will work diligently to ensure the quality of their work. We will never rush a residential or commercial painting job. We will use top quality paint and tools to complete the contract to your specifications. We will never leave any tools, stains or materials behind that you must clean up. We will always stand behind our work and satisfaction is 100% guaranteed. Additional contact name - Suzanne Hinton. Additional email - [email protected].
"Larry took on the incredibly ambitious project of renovating our 1914 Craftsman home, repainting the exterior, expanding the primary bathroom, refinishing floors, decking, stairwells, expanding and updating the kitchen, updating electrical and heating systems to modern standards, and so much more.The project is almost complete, but we were so excited that we wanted to write the review anyway! Throughout the process, Larry and his crew worked tirelessly to get things done, always focusing on quality and making sure we were happy with the work. Even partway through the project, neighbors were already commenting on how much they loved his color choices, and how much he and his crew cared about the project. Even given how large the project was, Larry and his crew tackled it head-on and got it done; he really brought out what made this home so special to us. We're really happy to have had the chance to work with Larry, and are really appreciating how wonderful our new home is thanks to him and his crew."
Chris G on March 2025
FAQs for percolation testing projects in Mercer Island, WA
The average cost to snake your main sewer line is around $250 for a simple snake. Most sewer line specialists charge between $45 and $200 per hour for main sewer line snaking, so the time involved plays a major role. The price you’ll pay will depend on the severity of the clog, the item causing the backup, how long it takes to remove the item, and more. A more severe issue that requires unclogging a main sewer line will cost $3,100 on average.
Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
Yes, most states require septic tank installers to have a license, and for good reason. Hiring an unlicensed septic tank pro could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
The cost of septic tank repair is $1,775 for the average homeowner. However, depending on a few elements, you might pay as little as $170 or as much as $6,100. Location, repair type, and tank material all determine the final cost. For example, replacing the septic tank filter can be as little as $200 to $300. However, repairing septic lines costs more, averaging around $1,500.
The average cost to unclog a drain is around $200, with prices ranging between $110 and $800, depending on the type of drain and the extent of the clog. Hiring a professional to snake the toilet or sink will usually cost between $110 and $275, a bathtub or shower typically costs around $225, and a main line clog can cost between $100 and $800 based on the severity of the clog and how far beyond the access point the clog sits. Since the labor involved varies, most plumbers will charge an hourly rate for drain cleaning.
The Mercer Island, WA homeowners’ guide to percolation testing services
From average costs to expert advice, get all the answers you need to get your job done.

The cost to cap a gas line is relatively low, as plumbers can handle the job in roughly an hour. We break down cost factors and DIY considerations.
•Discover the cost to replace drain pipes in a house, including average prices, key factors, and tips to save on your plumbing project.

The average propane tank costs between $600 and $2,500, depending on the size, location, and more. Our expert guide explores all the factors.

You can tackle a drain blockage with a drain bladder or snake, but the type of clog will determine which one is better.

Cutting pipes can be easy, but this job requires some safety measures. Learn how to cut metal pipes quickly and safely for any plumbing project.

An undermount sink can create a sleek, seamless aesthetic for your kitchen sink. Use this guide to learn how you can replace and install your undermount sink.
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