We provide you with the best possible septic options and designs. Call us for perc testing and a soil evaluation before you purchase property to see what a new septic system will cost. We only hire the best in the business, so you can be sure you're working with the best designers, builders and inspectors.
It is not just the quality of the design, but the quality of the entire experience. We create unique designs specifically for you. We promise to look at the details of how your system will be used and offer our best and most cost-effective recommendations to you. We're here for you - before, during and after.
We are not set in our ways and we are happy to adapt to the needs of our clients under the county and state regulations. For over 50 years the McNair family has been designing septic systems in Washington State. In 1972, Scott McNair began working for the Clark County Health Department. He left that position a few years later to begin his own on-site septic design company.
It is not just the quality of the design, but the quality of the entire experience. We create unique designs specifically for you. We promise to look at the details of how your system will be used and offer our best and most cost-effective recommendations to you. We're here for you - before, during and after.
We are not set in our ways and we are happy to adapt to the needs of our clients under the county and state regulations. For over 50 years the McNair family has been designing septic systems in Washington State. In 1972, Scott McNair began working for the Clark County Health Department. He left that position a few years later to begin his own on-site septic design company.
Services
Obtaining county approval for a septic system can be overwhelming. That's why you hire us. From the moment you call us until long after your system is installed; we will use our expertise to make the process quick and painless for you as possible. We work for you, which means you get to be a part of any decisions that may need to be made.
Are you having problems with your septic system and don't know who to call? We have a long list of professionals here, or give us a call and we would be happy to help you narrow down your choices. Clark County Public Health Department requires all septic systems to be professionally inspected between once a year to once every 3 years depending on the type of system you have.
Reviews (12)
Melissa Kirkley
Nov 27, 2021
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Cory and his team are just fantastic! I have no words! Friendly, professional, and easy to get ahold of( he seems to always pick his phone up). His work and that of his team are solid. Reliable showing up as scheduled, he took the time to dig multiple holes during a perc test and filed all the paperwork and expertly drawn maps to the city.
His know how and experience shows in everything he does. We are SO HAPPY we referred him to family and will use him for every phase of our project that we possibly can! Thanks Cory for a superb job!
His know how and experience shows in everything he does. We are SO HAPPY we referred him to family and will use him for every phase of our project that we possibly can! Thanks Cory for a superb job!
Marcel Mahouton Boitcha Jean Bosco
Oct 31, 2021
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Michele Philpot
Nov 20, 2020
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Sean Massie
Nov 18, 2020
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James Gorman
Oct 13, 2020
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A completely new septic system was installed for my elderly mother. The company & staff was absolutely outstanding, from the initial appointment to the final installation. Communication is paramount with me & I knew exactly what, when & where the project would start & finish. The property was left in perfect condition for the landscaper to reseed the lawn. McNair Septic Design exceeded all our expectations.
Dan
Sep 26, 2020
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Msa Llc
Jun 26, 2020
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Cory and company are consummate professionals and expert septic designers. I’ve used him on multiple occasions for land development as well as for my personal residence. These folks think outside the box and get the job done on time, every time! Highly recommended without hesitation!
LaVerne Brabant
LaVerne Brabant
Jason Weeks
Oct 21, 2019
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Travis Glendenning
Oct 02, 2018
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Brenda Smith Wickizer
Jul 24, 2018
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Cory McNair was exceedingly professional. He was prompt in his communications with us unlike so many in the industry. He did what he said he would do, and within the time he said he would do it. We would recommend his company to all. You will be in great hands if you hire his company! Brenda and Rick Wickizer
Nathan D.
Dec 23, 2016
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Cory McNair and his team are efficient and great to work with. We came up against some demanding timelines on our home build, and Cory helped me get our system designed and ready for permitting without hesitation. Cory was recommended to me by my realtor and I would recommend him to anyone looking for septic design.
Colleen Lines
Dec 04, 2016
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Cory McNair really saved us a lot of money! We previously hired another designer that designed a complex expensive system. We had 3 different installers recommend hiring Cory to design a more cost effective, efficient septic design. At no cost to us, Cory looked at our site and made great recommendations. We hired him immediately. Within a few days, he had the new system designed and even negotiated with the county to waive the permit fee that we paid with the other installer. We couldn't be happier. I wish we had hired him in the first place. His new design saved us approximately $11,000!
