*The Angi rating for Percolation Testing companies in Cosmopolis, 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 Cosmopolis, 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 May 25, 2026
Serving Cosmopolis, WA and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"The whole process from start to finish was absolutely excellent. The care in detail towards the work Was exceptional. If you need a new shower , these are your guys!!"
+16
Serving Cosmopolis, WA and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Tech was able to tell me what the error code meant but did not want me to order part until testing with volt meter. Diag appointment with volt meter did not cost extra. Tech gave me part numbers and it fixed the problem."
+2
Serving Cosmopolis, WA and surrounding areas
Approved (Corporate)
In business since 1995
Free estimates
Emergency services offered
"Had Groundworks install a drainage system and sump pump in our home’s crawl space. Anthony and his crew, Jordon, Uriel, and James were Outstanding. It was a three day job. They were on time every day and worked their tails off each day. It was a muddy job in cramped quarters. They never complained. Anthony kept me updated on the progress they made each day. Anthony shared pictures of the job as it progressed. They cleaned up the job site each day. Anthony went over all the details at the completion of the job and answered all of my questions. The whole process was Great. From the initial inspection done by Kristy to the office staff and the installation. The communication was also Great. I highly recommend Groundworks for a complete and thorough job."
+16
Serving Cosmopolis, WA and surrounding areas
Approved
In business since 2011
Emergency services offered
Customers say: Quick response
"I had a water leak underneath my house. I was desperately needed someone to fix it. Every plumber I called were not available. I keep searching for someone. I called West Coast plumbing and the lady who answered the phone helped me. I got help right way. The gentleman who came to fix my broken water pipe was kind and very helpful and professional. Thank you Levi, you save my day. You are Awesome."
+5
Serving Cosmopolis, WA and surrounding areas
Approved (Corporate)
In business since 2011
Free estimates
Credit card accepted
"Josue came out and explained the product to me very well, showed me examples and walked me through everything. He did a great job. Very easy to work with and understand."
Serving Cosmopolis, WA and surrounding areas
Approved
In business since 2022
Credit card accepted
Customers say: True professional
Evergreen Air 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.
Serving Cosmopolis, WA and surrounding areas
Approved (Corporate)
In business since 1929
Free estimates
Credit card accepted
"The workers were good , except the toilet they installed was leaking and we have to call a plumber to fix it ."
+8
Serving Cosmopolis, WA and surrounding areas
Approved (Corporate)
In business since 2016
Free estimates
Credit card accepted
"They were able to start project in a timely manner and finished I 1 day."
+12
Serving Cosmopolis, WA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
Here at Alpina Mechanical we are a fully licenses and insured HVAC company working with commercial and residential customers. No job is out of our wheelhouse and we do repairs and installs on all HVAc systems. Call now for a free estimate.
Serving Cosmopolis, WA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Work was completed, but with a lot of issues and lack of communication. Mostly listening and attention to detail. Items purchased/installed without consultation. Wrong doors purchased. Shower walls already detaching from drywall. Had to replace already new water heater because they hooked/unhooked/moved it so many times it fried the electrical board inside it. No accountability for mistakes. Plumbing company in town won't work with them anymore because of their conduct. They didn't know a blower door test was required to pass inspection, so did the work myself. Was constantly told "I'm not making much money off of this" as a way to skirt responsibility. JOBC made the quote, and was told that there was a specific budget. IMO wasn't willing to constantly pay more money, so other jobs took priority. They smoked marijuana in the driveway while working. Not opposed to that generally, but not professional. Was being sued by another client and asked for . Won't hire again."
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.
From average costs to expert advice, get all the answers you need to get your job done.
Septic leach lines perform the important function of taking wastewater from your septic tank to the leach field. Here’s how they work and how to maintain them.
Many homes rely on gas for cooking, heating, and more. A gas pressure test inspection ensures your gas lines are leak-free, pressurized, and efficient.
Learn how to check for mold after water damage to prevent dangers to your home and health. You should assume that mold is present whenever there is a high-moisture event at your home.
Getting the right pro for your perc test is crucial for getting legal approval for your project. Learn who does perc tests to ensure an official result.
When you are wondering how to test for asbestos, you can use a DIY at-home testing kit or you can reach out to a local asbestos testing company.
If you suspect the presence of lead paint in your home, testing is the natural first step. Here is who homeowners can hire to test for lead paint.
