I'm onlyproviding 5 stars, because their Plumber, Rolando, was amazing. However, there is no way to contact this company, especially if the call to them came through an insurance home warranty type deal. Our insurance company, Choice Home Warranty, told us that they were going to be dispatching Cornerstone construction solutions and the time and date would automatically be assigned. They told me if the time and date don't work that we could call CSC and reschedule. The time assigned did NOT work, and I left multiple voicemails and never heard back. I wasn't supposed to be home, but since it was raining, I rearranged my day and was here when Rolando arrived early (even earlier than the text said he would be arriving). That being said, Rolando was the nicest, most helpful, wonderful diagnostician I could have hoped for in a plumber. The problem was fixed quickly, and we even had a nice chat about how to handle the timing next time if we need to do an insurance claim again. read more

The company assigned to us through Choice Home Warranty because of a sink stoppage. Waited 3 days for them to assign a technician. The technician calls 7 am Monday morning with 20 minute warning. I checked outside due to technician not showing up and there was a yellow invoice on the step with a note saying customers were not home. Everyone was home with a very alert dog that never barked. Tried calling back the technician, but he refused and waited to take my call. The company voicemail is not responding. Cancel CHW and will contact BBB to file a complaint against the company. read more

Shit service! Terrible technician. Rolando was the worst experience you can imagine. Zero communication skills. Did absolutely nothing to fix our problem. Hung up on me when i asked him what our options were. read more

Part of american home warranty call. Doesnt read the notes put on the claim. Doesnt listen to their voicemails. Claim was picked up and dispatched at 830PM. For 11-3 appt next day. Called 630 to ask if they could try to show up around noon. No call back. They send a automated dispatch notice. At 750AM. Apparently appt was changed to 8-12 with no notice and technician ronaldo was on his way to arrive at 9AM. He says quote "i can try to go to another job first but no guarantees i can show up today" Joke of a company read more

Rolando did an amazing job with fixing our water heater! There is some miscommunication with home warranty, but Rolando took the time to inspect, analyze, and understand what was wrong with our water heater. He then came and did such a great job. It's a 11+ year old water heater and he was able to fix it! read more

This company was assigned to us through our home warranty company (American Home Shield). Our water heater was not heating up properly. I got a text message on Tuesday that they could come out on Thursday. I called Tuesday and left a voicemail to see if they could come out sooner since hot water is a necessity. No response. I called again Wednesday and left another voicemail that went unanswered. I sent a text and received no reply. Our time window for Thursday was 10am-2pm. At 12:45 no one had showed up or called yet. I called again and their voicemail box was full so I couldn't leave a message. I sent an email with no response. Finally I called American Home Shield. They said the appointment was still on. The plumber, Rolando, shows up-is completely unprofessional, barely mutters a hello. I thanked him for coming (although I was already frustrated with the lack of communication on the company's behalf). I showed him the water heater and told him what was going on-which he didn't even seem to be listening to. He asked zero questions, he looked at the unit for about 3 minutes. He did not ask me to go inside and turn on the water, check the temperature anything. He told me "it's fine, it's working." LOL! It most definitely isn't. The pipe above the unit wasn't even heated up, meaning it's not on-I even told him this! He honestly had no idea what he was doing and was completely unprofessional and very rude. He simply did not give a crap and was thrilled to just be getting out of there after 3 minutes on the job and not doing anything. This is THE WORST company I have ever used for anything in my life. Now I have to wait until these bums submit their fraud report to American Home Shield pretending like they checked the water heater and everything was fine so that I can then get someone else to come out here to actually fix the problem. AWFUL AWFUL AWFUL, THE WORST!! STAY FAR FAR AWAY FROM THESE CROOKS!!!!!!!! read more

Awful customer service , Unknowledgeable technician and very unprofessional Not recommended at all read more

Rolando is the technician that came over. My wife answered the door after 1 hr when i got home he was leaving already and he told my wife that the moist on my plumbing is causing the damage on my wall. But i instead that there is a leak somewhere then i told him that the seal ring on the toilet bowl is leaking when its backing up at first he dosent want to do it and he want to leave. I told him he needs to replace it. When he finally agrees we saw the seal ring is worn off and he know that he made a fool of him self. The i told him we need to find the leak inside that wall. He refuse and leave. Later i found out that he went to my patio and check the main drain when i went outside theres a lot of water on the floor and when i investigate i found out that he broke the drain pipe. When i went to the bathroom he did not connect the water connection and when we turn it on water all over the bathroom then he did not seal the toilet bowl properly. read more

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Thank you, Rolando and CornerStone Construction Solutions! You are the BEST! On Sunday, we suddenly had the toilet in our master bath leaking brown water (!!!!) from the floor. I called our insurance, AHS, and they booked this company. I called CornerStone (on Sunday to leave a message) asking if they could please come on Monday. One of the owners answered the phone, he was at a birthday party yet was SO nice and helpful and said he'd do all he could to fit us in on Monday. Rolando came out, explained everything, went above and beyond to do a GREAT job. So happy to have found you guys! I wish I could give you 100 stars, not just 5:) THANK YOU! read more

Very poor company when it comes to customer service. They were sent out by our home warranty company American Home Shield for a leaky faucet. They showed up and said need to reschedule the job since they need to buy parts. The technician told me the office will contact to reschedule the job. After two weeks of follow up and several messages no one bothered calling us back. I had to get the warranty company involved and now they are sending a new company out. Stay far away and avoid the frustration! read more

Roland from CornerStone Construction Solutions was sent to fix our AC from our insurance company. Even though he had to come out many times as our problem was complex, he was able to figure out the problem and fix it properly. He is knowledgeable and explained everything to us very patiently. Thank you Roland and also thank you to Arnold for fixing our AC. read more

Very lousy, unprofessional and poor company almost makes me think a scam. These people were reviews to us by American Hone Shields. Their first response was after one week. They showed up and said need to reschedule the job since they need to buy parts. The technician told me the office will contact to reschedule the job. After one week follow up and several messages not only no one bothered calling us, their VM is even full. Overall crappy service. Don't work with them. read more

I had issues with my hot water heater and they scheduled an appointment for the next morning. Their technician Rolando came by, didn't have the necessary parts but managed to get parts the same day and returned later in the day to fix the problem. read more

What can I say about Thomas the AC Tech that saved our lives on this hot summer Los Angles day, not only was he professional explaining all the workings of what went wrong with my AC unit he fixed the problem under my AHS warranty I could not be happier super guy super friendly I'm just so happy I have ac again thanks so much. read more

My AC stopped working on the hottest day of the year on a Friday. I have home warranty through American Home Shield who assigned the repair work to Cornerstone Construction Solutions. I had a tech come in the same day and take a look at the AC. Unfortunately the AC was not fixable but the tech was extremely professional and really tried his best to get the system working in greater than 100 degrees temperatures. After the tech went I spoke to Sam from Magik air( the ac repair branch of cornerstone) and he was very professional and made sure the warranty company got the diagnosis promptly. read more

I can't thank cornerstone enough. Their technician Rolando was excellent and was able to fix a problem another plumbing company said they couldn't fix. Cornerstone was referred to us through our American home shield warrantee. If you have something fixed from your warranty company request cornerstone they got the job done when others weren't willing to. read more

Couldn't have asked for a better company to come out!! Cornerstone was sent by AHS, but they were so awesome I will continue to use them outside of my insurance in the future. In the first big heatwave this year, other companies were sent by AHS with "quick fixes" that didn't quite work. Finally, CornerStone correctly diagnosed the problem, but since the parts needed almost amounted to a brand new unit, I upgraded to a new unit! I have medical issues and cannot be in high temperatures very long, and I'm so grateful they were able to fit me in during the biggest heatwave this year. They called to confirm appointment times, and showed up earlier than expected each time they arrived. The price was also very reasonable. I HIGHLY RECOMMEND!!! read more

After our neighbor's tree went wild and decided it wanted to attack our plumbing in search of water...... the roots grew so large they buckled my driveway. Its hard to find a construction company you trust, and I got bids from quite a few companies. But in the end, CornerStone won out. What wonderful people to work with! Communication was so quick and easy (text, call, whatever - they always replied promptly) and they were so kind and decent to put up with numerous trips to the house to go over ideas and get bids - before we even gave them the job! Once I saw our new driveway, I knew we had made the right choice. The quality of the work is superb - we literally have a european driveway (nicest in the hood!) that looks like it came from a grand estate! Pricing was fair, and for the quality of work, one might even think its a bargain. When the home was appraised recently the appraiser immediately commented on the driveway, and after looking at the numbers - it actually turns out the driveway paid for itself in increased value to our home! As we start to look at new project for around the house, CornerStone will always be right around the corner for us :). 5 stars all around! read more

I have used many plumbing companies for service by American Home Shields and was not fully satisfied by them but last time I used Cornerstone Construction and we were so happy by them that now I only ask for them only. Rolando is a good plumber and very understanding and works without any excuses or difficulty. We recommend them highly. read more

This company is the greatest company they came out to service my unit the same day. They had all the tools in the car didn't have to wait. The technician and the office staff were extremely friendly and helpful.They explained everything to me prior to fixing my unit I have plenty of questions which they answered all my questions and Gave me a explanation on how it works. After they were done with the work they cleaned after them solves got the unit running and Its blowing super cold thank you. read more

I just want to take the time and say THANK YOU to the team at Cornerstone Construction. I had a horrible flood and leak at the outside of my house. With so many calls from other companies and different inspections I was in desperate need to get it fixed. Thankfully Sako and his team were persistent with customer service and getting the job done. Definitely using you guys again. You saved my home and garden! read more

This was the contractor that was given to me by my home warranty, horrible customer service , He was not willing to give me a call even the day before he was going to come out. Just a call in the morning with a 5 hr window. He was afraid to do the work covered by the home warranty because the toilet could break. Then he would have to replace toilet . So after 3 weeks from when I filled the claim no call and no show and the home warranty company had no info from him. Hire them at your own risk !!!!! read more

They did a good job fixing my Heater without charging me extra for doing modifications.

Definitely recommend Cornerstone Construction for all your construction needs. Their team was always on time ready to work and get the job done. The guys at cornerstone did an Amazing job transforming my 2,000 sq ft house into my 5,000 sq ft dream home. read more

Our water heater tank began leaking and was extremely dangerous. Luckily, one of my friends recommended Cornerstone Construction Solutions and I gave them a call. They were there within 2 hours to give us an estimate and installed our tankless water heater within the same day! They worked professionally and neatly. They understood our situation and worked late into the night to make sure our home was safe and our hot water was flowing. After sharing the price with some friends, I found out I had been given the deal of a lifetime. I definitely recommend using CSCS with any job you want done quickly, correctly, and for an affordable price. Great business with great people. read more

Cornerstone Construction Solutions - Our amazing water heater thanks to CSCS. - General Contractors Near Me

Cornerstone can do it all. My family and I had a huge headache because we didn't know much and assumed we needed different people to do different jobs for our house. (we needed it completely demolished and rebuilt) But then we heard of Cornerstone Construction, and all our problems were solved. They did everything we needed done quickly and professionally. All the workers are very kind too, which helps. Definitely people i trust and would recommend to anyone! read more

Thank you.... Rolando was excellent. He is a great plumber. The price was very good also. Thank you Sako... I recommend these guys for sure.

They did a few remodel jobs for me, I was so impressed that I hired him to build our new home...: AMAZING WORK AND PRICE!! Edo is honest, trustworthy and very reliable. I've never had such pleasant experiences dealing with contractors before, I would HIGHLY recommend him. He is a general contractor, electrical contractor, plumbing and HVAC. read more

We hired Cornerstone construction to paint our condo and do all of the plumbing work after we moved in. Their services were excellent and the quality of work was superb. The owner, Ed, is very friendly and easy to work with; he is also honest and upfront. I highly recommend this company for your construction and remodeling needs. read more

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I just want to say that the service I got today from Cornerstone Construction Solutions was the best service I've ever had. The technician was on time and very professional. He repaired my A/C in less than an hour and even made sure my heater is good to go for the winter. I recommend everyone to contact Cornerstone Construction Solutions for your A/C problems and ask for Roland, he knows what he's doing, you will not regret it!! read more

If I have the option to rate a company zero stars, I would do it for this company. Horrible customer service!!!!!!!!! I did not go to work to make sure I am around when they come, called many many many times to confirm the time. By the time they called me and missed it but called back in 30 minutes, they cancelled my appointment and went on to the next one. On the many times I called and even the voice message they left, I wasn't told I only have 30 minutes to call back. Plus, why would I call many times before the appointment confirming and reconfirming the time if I will not be around? DO NOT USE THIS COMPANY. They are scammers and liars. They told the warranty company that assigned them to me they came to my property. They never did. I will report them to Better Business Bureau, Dept. of Consumer Affairs, among other places. I am sure I am not the only one they have scammed. BE WARNED!!!!! read more

I found Cornerstone Construction Solutions through AHS when my attic A/C unit started leaking during this latest heatwave, causing the ceiling below it to start dripping onto my stairwell. And since I work from home, I needed the A/C for my workroom. While I understood Cornerstone was booked solid, I had to have the unit back up and working as soon as possible. So I cancelled the Cornerstone appointment through AHS and made arrangements through another company (outside of AHS) to come out. Sako, the owner of Cornerstone, called me IMMEDIATELY after I made the AHS cancellation and said to call him if the new company wasn't able to fix the problem. The new company showed up extremely late and couldn't be bothered with even attempting to fix the problem, which left me completely frustrated and without A/C for another day. I called Sako the next morning, and made arrangements with AHS to have a technician come out late that same afternoon. His tech was incredibly personable, highly knowledgeable, and after he left I felt like I'd been dealt with more than fairly and in a much more professional manner than the previous company. Unfortunately, an hour after the tech left, the problem started again. I called Sako again in the morning, and while his technicians were all booked solid for the day (remember, we were in a heatwave), Sako said he'd wait until one of his trucks came back from their scheduled appointments and MAKE THE TRIP OUT TO MY HOUSE HIMSELF AFTER BUSINESS HOURS!! To me, this shows how Sako is fully dedicated to professionally servicing his customers. My problem was finally fixed (turns out the unit wasn't entirely level), Sako and I had a great time getting to know each other while we were waiting to confirm his repair was working, and as a result of his excellent customer service, Cornerstone will be my FIRST call for any other repair or construction issues I may have. Thank you, Sako!! read more

Worst service ever. Have a tankless water heater that had a very slow mild drip. Called my home warranty and they sent out CornerStone Construction Solutions. They sent a guy who had never worked on water heaters. The technician took the unit apart and made the water heater start leaking a ton of water. He could not stop it. He claimed they needed to order a part and he didn't know if he could get it or not. He then said he had to leave as he had other appointments to get to. He would not help stop the water from pouring out of the water heater, any issue that he made 100 times worst. He was extremely rude and arrogant. He claims he didn't know why the company sent him as he is not a licensed technician to work on these problems. Tried calling the company multiple times and they would not pick up. Never again using CornerStone Construction Solutions. read more

After purchasing a home, I ran into some problems. Among the problems found was the drainage pipe in my kitchen. For several months, the water leaked straight into the ground. I contacted Corner Stone Construction Solutions and the problem was resolved within a couple of hours. I must say I was extremely satisfied with their results. Thank you Cornerstone Construction for your help. Not only did they complete the job, they were a less expensive than others. read more

Thank you for coming out as soon as possible to see my water heater. ORH home warranty had previously assigned me DN Plumbing and they had no interest at all to help out. Rude horrible service . I had no hot water for almost a week, but you guys made it a priority to schedule me the next day! I really really appreciate, thank you for also fixing it the same day. Highly recommended!! read more

Great job, replaced my HVAC in no time. Couldn't have asked for a better company to come out!! They exceeded my expectations in keeping with the time and service. Would totally recommend for all HVAC repair and replacement. read more

I had the pleasure of working with Sako when I decided I wanted to remodel my back house. From the beginning to end it was a positive experience. He was extremely knowledgable, and very thorough with the work he did. He had such unique and amazing ideas that made the entire process so easy for me. I could not be happier with the service they provided and will definitely be working with him again for any future home projects I have coming up. read more

Great job quick & clean. Ready to use air conditioning. They did a tough job with the AC on the 3rd floor & obstacles to get there. Sako very nice to work with read more

Our family just moved into our new home and we wanted to make a few changes before we moved in. We were recommended cornerstone construction solutions (CSCS) by a friend and we are glad we chose them to remodel our dream home. They came in for an estimate and Edik the owner was very helpful on helping us decide what sort of changes we wanted to do to our home. He gave us a fair estimate and a time period for the job that needed to be done. We live in a gated community so them being fully licensed and insured help a lot with the HOA. They had a very friendly staff and the work that was done to code and to perfection. They do all kind of construction work from a-z. Fro all your general construction needs call CSCS, guaranteeing their work & quality, you will also be very satisfied with the cleanliness of the staff and also the flexibility of their work hours. After the remodel, the next project was to build my office, and also install security cameras. The options & prices were excellent, to the point where I did not even shop around! I trust these guys with all my work & I am very comfortable with them working while I am away, which is more important! Don't look around, or waste your time! Give them a call for your next Construction Solution! read more