We recently bought a house in Sonora. The carpets were dirty and stained and, though we were told they were made of high quality wool and expensive when new, were pretty much resigned to replacing them. In the hope that they might be saved, I researched carpet cleaners in the area. Cornerstone advertised that they used the Rotovac360. I watched a couple of Youtube videos and was impressed, so I hired him. When he arrived and inspected the carpets, he decided to vacuum first. He took out 8 canisters of dirt, pet hair, loose fibers, and (technical term) gunk. He probably should've charged me extra, but he didn't. Then he went to work with the Rotovac. Before he started, the carpets were almost a Coca Cola brown. They turned out to be a light coral color when he was done. I left him alone to do his work, but when he was almost done he called me back in. He'd left a 2'x4' rectangle in the dining room. The contrast was amazing. Then he turned the Rotovac back on and cleaned up the rest. It was very impressive. When I was a little boy, I used to lie on the carpet in the living room when I watched TV. I haven't done that in years. Okay, decades. But our carpet is now so clean and soft, I've started doing it again. read more

Cornerstone Carpet Cleaning does outstanding work. I had several stains that I figured would be a great place to put a piece of furniture! One was a red wine stain on my white carpet. I figured no way. As it turns out, nobody but me knows it was even there. Gary is very professional. One thing I learned over the years, is that it isn' just a matter of putting cleaner on your carpet and get done with the job so you can move on. It's about the extraction. To get as much of the moisture out as possible. It helps prevent the stains from wicking up to the top. And its nice to not be left with a very wet carpet. Thanks again Gary for the proffesional worksmanship! I always reccomend you for sure. read more

This is the second year I have used Cornerstone. The rotary tool that they use is definitely better than the typical wand thing. It gets stains that the older type devices just don't get. The store where I bought the carpet indicated that they prefer the rotary device to be used as it gets the deeper dirt out. I noticed one review referenced dog fir......we have a dog, too, but we deep vacuumed the rug the day before the cleaning and there was virtually no dog fir around. The cleaning services always recommend that the carpet be thoroughly vacuumed prior to cleaning. The owner, Gary, is personable, efficient, and honest. As I told him when he left, "I'll see you again next year". read more

I want to thank Gary with Cornerstone Carpet Cleaning for not giving up on finding our place. He was courteous and very forgiving for being late. He first prepped the rugs and was determined to get the dirt out of our 8'x10' 38 year old family named area rug and a 20 Yr old 5x7 area rug. My husband and I are very pleased with his work. I am definitely going to have him clean my wooden floors next. Don & Patricia read more

I would like to let everyone know how amazing this carpet cleaning company is. My rugs were a mess. Dogs and kids. I never thought the smell would come out. Above and be all, my security deposit back. Gary the owner took special care to make sure the job got done correctly. I am so appreciative. If you have carpet cleaning needs this is the place to go. Very professional and personal. Competitive prices also. read more

As good as it gets. Thanks again for your hard work and another great job. I especially appreciate the tips you gave me on maintenance. I promise it won't cost you a future job for me. If I was in the carpet cleaning business, I'd want you working for me! read more

Cornerstone cleaning handled the carpet cleaning at my in-law's cabin in Twain Harte efficiently, professionally & exceptionally. The quality of Gary's work is impeccable & he was very mindful of our time. Highly recommended, A+++++ read more

Look at the bottom of each businesses account and find the "Not Recommended Reviews" to see how YELP is the JUDGE and JURY against any business that they want control over. Very CORRUPT YELP!!! read more

Cornerstone Carpet Cleaning is THE Best investment I have ever made in having my carpets cleaned. Can't recommend enough!!! Gary is professional and efficient. Will never go with anyone else!! read more

Gary was fantastic showed up on time, got to work, and the carpets looked beautiful. He even loved our german shepherd! Super friendly and professional. read more

Gary was able to fit us in just before the holidays. He came on time and did a great job. Our carpets look great and we were very pleased.

Delighted with the professional service. The carpets stairs & three rooms looked new. I highly recommend them.

Outstanding service. Exactly as promised. Affordable and quality work. I would highly recommend this company.

Was very knowledgeable about his carpets and stains was on time and did great job would use again

Gary was so helpful and accommodating with our schedule while we were moving.