Angi Approved
Super Service Award Winner
In business since 2014
Free estimates
Warranties offered
"Had a French drain installed. Workers were on time and worked quickly. I am very happy with the experience."

Angi Approved
Super Service Award Winner
In business since 2014
Free estimates
Warranties offered
"Had a French drain installed. Workers were on time and worked quickly. I am very happy with the experience."

Angi Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"I had a rough experience when I found out a home we just purchased had water coming into the crawlspace. We had a long period without rain and the inspection didn?t show anything. I called a few companies out, but Cdg stood out to me. They replaced our gutters, fixed our flooring and cleaned up and fixed our crawlspace. I?m very pleased with their work. Will was very helpful."

Angi Approved
In business since 1995
Free estimates
Warranties offered
"On 3-4 November 2025 Chris, Corey and Xzavier encapsulated my crawlspace and set up the dehumidifier for the electrician. Keep in mind, the crawlspace varied from about four feet to two feet. At two feet they were crawling on their bellies. The three arrived at my house on time, Chris explained exactly what was to be done and the three of them completed the job in a most professional manner. I inspected the crawlspace when the job was completed and was amazed at the workmanship that was done. I commend Chris, Corey and Xzavier for their excellent work and the courtesy shown to my wife, myself and even our dog, Zoe. Thank you, Chris, Corey and Xzavier for a job well done. "



Angi Approved
In business since 2020
Free estimates
Warranties offered
"I had the most amazing and smooth experience with Crawlspace Ninja of Alpharetta! From the owner Mike, inspectors Jordan and Jamall and everybody from the crew, they treated me like family, answered every question I had, adjusted my quote based on my needs and budget, they even have financing options if I didn't want to pay out of pocket. Couldn't be happier I gave my business to the right professional people! Thank you Crawlspace Ninja of Alpharetta!"

Angi Approved
In business since 2007
Free estimates
Emergency services offered
"CGS did a great job encapsulating my crawl space. Mike helped to simplify the process. I would highly recommend CGS."
Angi Approved
Super Service Award Winner
In business since 1991
Free estimates
Emergency services offered
"Jerry is the bomb. He is extremely knowledgeable of the products used and very efficiently clean in his working for himself and with his crew. The crew whistled while they worked meaning worked well together which was a beautiful thing to see. Don’t let Jerry go. he’s a gem and a good representation for company."

Angi Approved
In business since 1989
Free estimates
Warranties offered
"Excellent - both times I've used them for crawlspace waterproofing and installing outside concrete drain"

Angi Approved
Super Service Award Winner
In business since 1977
Free estimates
Warranties offered
"I called several companies. Several did a part of what we needed and worked with other contractors to do all needed services. King handled the entire job. William and Jaime(install supervisor) were outstanding. Job area was left cleaning. Would recommend. "
From average costs to expert advice, get all the answers you need to get your job done.

Who installs french drains? Learn which pros to hire, other options, and how pros get it done. Start your french drain hiring guide now.

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Who to call for water in the basement or crawl space? Learn whether to hire a plumber, contractor, or structural engineer and what to expect

Wondering who inspects crawl spaces? See if a home inspector or crawl space contractor should handle your crawl space inspection and what to expect.

If you need to waterproof your basement, consider essential cost factors, including basement size, sealant type, home age, and more.