Premier Roofing & Exterior
Experts in Southern California

“This review is only in regards to our initial inspection and estimate for a new roof. Desmond was on time, professional, and friendly. We felt a thorough job was done looking at our property, providing a quote and answering any questions. Desmond responded qui…”

“This review is only in regards to our initial inspection and estimate for a new roof. Desmond was on time, professional, and friendly. We felt a thorough job was done looking at our property, providing a quote and answering any questions. Desmond responded quickly to questions we had after the initial estimate. Customer service is a huge thing for me. In the end we decided to go with a different company for our work. But, we liked our experience with GreenCal Construction.”

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“As a Woman-Owned Business and the best bid I received, GreenCal was my first choice. I learned a lot about my roof through the bid process and all of my questions were answered along the way. Before we started work, I got a letter from my insurance giving me…”

“As a Woman-Owned Business and the best bid I received, GreenCal was my first choice. I learned a lot about my roof through the bid process and all of my questions were answered along the way. Before we started work, I got a letter from my insurance giving me a deadline for a new roof and GreenCal kept me informed each step of the process. Everyone was very patient with my near hysterical urgency. I really appreciated that. They did the work quickly and efficiently, made suggestions along the way that made sense and walked me through what happened as they uncovered layers of old roof revealing rotted wood,. Near the end, they walked through the project with me, patiently noting all the spots I felt needed a little more attention (an un-primed piece of wood here, a un-picked up piece of trash, a errant satellite dish). Yes, it's a lot of money, and it's your house! The roof is the best protection against wind, heat, weather and I know I rest easier now that it's been done properly. Thank you GreenCal for making a very stressful project go smoothly!”

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“Megan Lee, John Serrano and the whole team with GreenCal Construction, Inc. gave us exceptional service and value providing roofing and rain gutters for our home improvement project.  This included installing both Spanish tile roofing for our new gazebo and ap…”

“Megan Lee, John Serrano and the whole team with GreenCal Construction, Inc. gave us exceptional service and value providing roofing and rain gutters for our home improvement project.  This included installing both Spanish tile roofing for our new gazebo and applying a 3 ply JM APPEX modified bitumen roofing system for our new low pitch patio roof.  All interactions with GreenCal Construction were wonderful, the workmanship was great, and the work happened quickly.  I would highly recommend anyone interested in having roofing work or rain gutters installed contact GreenCal Construction for an estimate.  I believe you will have a very good experience. Update: We loved working with GreenCal so much that we also decided to have them give us a bid to replace our dual pane kitchen window that developed some moisture inside the panes. The bid was great and we are excited to get the work done. We are so happy to have found a company that we can wholeheartedly recommend for all roofing, gutter and exterior work you might need.”

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“Sales person was Nick. Project Manager was Elsa handling the coordination. Ernesto managed the project in the field. Fantastic team of professionals who helped me replace my Wood Shake + Metal Shingle Decorate roof into a modern Asphalt Cool Roof. Quick and re…”

“Sales person was Nick. Project Manager was Elsa handling the coordination. Ernesto managed the project in the field. Fantastic team of professionals who helped me replace my Wood Shake + Metal Shingle Decorate roof into a modern Asphalt Cool Roof. Quick and reliable experience, high quality customer service and good at handling unforeseen issues. Pivoted well when issues outside of their control arose. They’re also handling my Solar installation. I expect to recommend working with them again myself for any future and potential work my network may require!”

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“We used first used GreenCal to replace the roof on my parent’s house. The team did such a great job we hired them to reroof our cabin in the mountains. Up next will be a reroof of our own home. They performed all the work as promised, and took care of every…”

“We used first used GreenCal to replace the roof on my parent’s house. The team did such a great job we hired them to reroof our cabin in the mountains. Up next will be a reroof of our own home. They performed all the work as promised, and took care of everything. We are so happy with their work we’re talking with them about doing more work on our parent’s home. Thanks again to the entire GreenCal team!”

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“They did good work. I got all my repairs done (new roof, windows, stucco/wall repair, wood replacement, text-cote paint). They was some cleanup for me to do (trash, digging out my water meter, scrap wood, nails). My only complaint is how busy they are, because…”

“They did good work. I got all my repairs done (new roof, windows, stucco/wall repair, wood replacement, text-cote paint). They was some cleanup for me to do (trash, digging out my water meter, scrap wood, nails). My only complaint is how busy they are, because I had repairs at the same time as the Palisades/Eaton/etc. fires. Probably, hire them again.”

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“Everyone at GreenCal was excellent. The guys were so considerate of our property. It was the most quick and efficient roof replacement I could ask for. Special Thank You to Manuel who went above and beyond to cover our roof after hours with plastic when…”

“Everyone at GreenCal was excellent. The guys were so considerate of our property. It was the most quick and efficient roof replacement I could ask for. Special Thank You to Manuel who went above and beyond to cover our roof after hours with plastic when some unexpected rain was forecasted. Coordination with the scheduling team was easy. Anthony the supervisor was great and responsive. I'm extremely happy and would highly recommend GreenCal.”

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“As a new home owner, working with Green Cal over the years have taken the stress of taking care of a home off my shoulders. They show up on time ready to hear my needs and ready to work with my budget( the best part). Since 2010 I've been and will continue to…”

“As a new home owner, working with Green Cal over the years have taken the stress of taking care of a home off my shoulders. They show up on time ready to hear my needs and ready to work with my budget( the best part). Since 2010 I've been and will continue to be a loyal customer.”

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“Nick was professional with his sales processes. It didn't feel pushy or pressured. I felt that he started with addressing my initial concerns with genuine care. I knew I needed a roof, price was reasonable, so I signed on on the first visit. After he left, we…”

“Nick was professional with his sales processes. It didn't feel pushy or pressured. I felt that he started with addressing my initial concerns with genuine care. I knew I needed a roof, price was reasonable, so I signed on on the first visit. After he left, we started considering additional insulation options to help our home be more efficient. He was patient with the process, didn't give me any push back when I suggested to postpone the job for 1-2 weeks to make sure I covered all my basis. He provided me with several insulation options and (what I felt) his honest opinion of what he would do if it was his home. He also pointed out some areas of concern on the facia that I had overlooked and we are moving forward with that as well. Looking forward at getting our new rood installed! Literally, "putting a roof over my family's head" :)”

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“Hi All at GreenCal Construction I really appreciate your time and professional expertise on my home projects. The outcome of the total work is fantastic. I’m constantly getting compliments from the neighbors about how great the paint job is looking and the fro…”

“Hi All at GreenCal Construction I really appreciate your time and professional expertise on my home projects. The outcome of the total work is fantastic. I’m constantly getting compliments from the neighbors about how great the paint job is looking and the front door installation is perfect. I do have some remaining projects around my home that will need to be address but I know one thing, I can always count on GreenCal! Sincerely Johnny”

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“I had a fantastic experience with GreenCal Construction. John, the Project Manager, was amazing. He provided excellent customer service, always took my calls, and returned them in a timely manner. They performed a thorough roof inspection and recertification…”

“I had a fantastic experience with GreenCal Construction. John, the Project Manager, was amazing. He provided excellent customer service, always took my calls, and returned them in a timely manner. They performed a thorough roof inspection and recertification. John was kind and friendly throughout the process. As a real estate agent, I highly recommend GreenCal Construction.”

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“Greencal replaced my roof. Got a bunch of quotes from different companies. Greencal was the most professional. The estimate included everything the scope of the work itemized the materials used all insurance an license info. The communication could a have been…”

“Greencal replaced my roof. Got a bunch of quotes from different companies. Greencal was the most professional. The estimate included everything the scope of the work itemized the materials used all insurance an license info. The communication could a have been a little better. there was a delay in starting due to the city backlogged with permits. i had to call a few times to check the status but once they started it was on. Quoted me a week and a half and finished in 3 days. My biggest complaint is that they forgot to tell me they were done! I also like that the company is female owned.”

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“GreenCal Construction staff members were professional and made sure to give the best quality product. Roofers were able to complete the job within a day and the cleanup crew did a thorough job cleaning leftover debris. I recommend their services to anyone look…”

“GreenCal Construction staff members were professional and made sure to give the best quality product. Roofers were able to complete the job within a day and the cleanup crew did a thorough job cleaning leftover debris. I recommend their services to anyone looking to improve their home.”

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“Green Cal construction/roofing made so easy for us. Arrived on time daily, clean the debris every time, overall, we are very satisfied with the roof replacement, price was very competitive with other contractors and the work was done as promised on time. We hi…”

“Green Cal construction/roofing made so easy for us. Arrived on time daily, clean the debris every time, overall, we are very satisfied with the roof replacement, price was very competitive with other contractors and the work was done as promised on time. We highly recommend Green Cal Roofing Solutions.”

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“Incredibly thorough, kind, professional, honest and exceptional customer service! Greencal’s entire team from Hazel, Crystal, and Eddie to all of the crews you are in great hands. They did a beautiful job refinishing and sealing stucco around our house and re…”

“Incredibly thorough, kind, professional, honest and exceptional customer service! Greencal’s entire team from Hazel, Crystal, and Eddie to all of the crews you are in great hands. They did a beautiful job refinishing and sealing stucco around our house and repainted as well as sealing tough spots that were prone to leaks in the past. During the most recent heavy storms the house held up perfectly! We will be using Greencal for many other projects in the future.”

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“recently hired Greencal Construction for a full roof carpentry and shingle replacement, and I couldn’t be happier with the experience. They completed the entire project in just five days, which was impressive given the scope of work. Francisco, the salesman…”

“recently hired Greencal Construction for a full roof carpentry and shingle replacement, and I couldn’t be happier with the experience. They completed the entire project in just five days, which was impressive given the scope of work. Francisco, the salesman, was extremely patient throughout the process. He took the time to demonstrate different roofing models and options, answered all of our questions thoroughly, and consistently checked in with us to make sure we felt comfortable with our decision. Crystal was outstanding when it came to payment services and customer support. She was organized, responsive, and made the administrative side of the project smooth and stress-free. Overall, Greencal Construction is transparent, professional, and truly goes above and beyond. I’m very happy we selected them and feel confident knowing our roof is well protected.”

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“I would highly recommend GreenCal. The workmanship and professionalism was fantastic from start to finish. Thank you Ali for working closely with us to get the job done in a timely manner, even while dealing with budgetary issues and some cost overruns due to…”

“I would highly recommend GreenCal. The workmanship and professionalism was fantastic from start to finish. Thank you Ali for working closely with us to get the job done in a timely manner, even while dealing with budgetary issues and some cost overruns due to termite damage.”

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“Hello, Ali. The roof at the rental house in Orange, California turned out great. Excellent workmanship. I will rehire you and GreenCal if I were to have another project like this. certainly will recommend you to anyone looking for someone to redo their house…”

“Hello, Ali. The roof at the rental house in Orange, California turned out great. Excellent workmanship. I will rehire you and GreenCal if I were to have another project like this. certainly will recommend you to anyone looking for someone to redo their house roof.”

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“I have nothing but good things to say about GreenCal Construction. I needed to fix a leak in my roof and it just so happened that a GreenCal representative was at my neighbors home. I decided to get an estimate and a complete evaluation was done. Rod took p…”

“I have nothing but good things to say about GreenCal Construction. I needed to fix a leak in my roof and it just so happened that a GreenCal representative was at my neighbors home. I decided to get an estimate and a complete evaluation was done. Rod took photos of my roof and recorded a video of just how bad the condition of my roof was. I decided to hire GreenCal to replace my roof entirely. I was given a thorough explanation on the process of replacing my roof as well as making some necessary upgrades to improve the overall all condition of my home (specifically ventilation). It appears that the previous owner of my home had replaced the roof himself and had done a terrible job. One of the things that stood out the most was that GreenCal was in constant communication with me about what was happening and how the process was coming along. They also kept true to their time line of when the job would be completed. I am absolutely happy with my new roof.”

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“Before finding GreenCal Construction Inc., we met with three other companies to compare pricing and services. Replacing the entire roof on our family home is a huge investment, so it was important for us to feel confident that we were choosing a certified, tru…”

“Before finding GreenCal Construction Inc., we met with three other companies to compare pricing and services. Replacing the entire roof on our family home is a huge investment, so it was important for us to feel confident that we were choosing a certified, trustworthy, and legitimate company. Abraham was the representative who met with us, and from the very beginning he stood out. He spent over 3–4 hours at our home walking us through every step of the process—what to expect before, during, and after the project. He made sure our whole family understood everything clearly and felt comfortable with the decision. He was incredibly thorough, knowledgeable, personable, and genuinely passionate about his work and his company. We decided to move forward with replacing our entire roof, especially because our home was originally built in the 1970s. The crew arrived on a Friday and completed the job by Sunday. They worked efficiently, kept everything clean, and made sure the site was tidied up at the end of each day. The workmanship and professionalism were outstanding. Thank you, Abraham and the entire GreenCal team, for taking such great care of our home and making sure the entire process was smooth, transparent, and high quality. We truly appreciate your work and will definitely be recommending you to our family and friends.”

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“Thank you, GreenCal Construction. Y'all did an amazing job. The two guys who came and worked on cleaning my roof were very professional and helpful. My roof had green stain/green algae that needed to be pressured clean. I was a bit worried that the green algae…”

“Thank you, GreenCal Construction. Y'all did an amazing job. The two guys who came and worked on cleaning my roof were very professional and helpful. My roof had green stain/green algae that needed to be pressured clean. I was a bit worried that the green algae and dirt wouldn't come off, but as you can see, they were completely gone after the work was completed. Look at the before and after pictures. Great job. Also, I quoted around with other roofing companies and they were charging a lot more than GreenCal. I'm glad there are still honest folks and Companies out there who's not out there to take advantage of people by overpricing/over-charging their clients. I will recommend and use GreenCal in the future. Thank you again, GreenCal.”

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“Greencal just tarped some roofs for an HOA that I manage. Even though it is a busy time of year (rain), Greencal was able to make time to get the roofs tarped in a timely fashion. Hazel is the go-to-person at Greencal. She isn't great at returning emails, but…”

“Greencal just tarped some roofs for an HOA that I manage. Even though it is a busy time of year (rain), Greencal was able to make time to get the roofs tarped in a timely fashion. Hazel is the go-to-person at Greencal. She isn't great at returning emails, but she gets back to texts right away. Hazel coordinated the tarping of the roofs.”

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“A fantastic experience! This is the best contractor that we have ever used. Every detail was covered and communicated to us. The were courteous and extremely professional and responsive. Their project management team was a 5 star pleasure to work with. We will…”

“A fantastic experience! This is the best contractor that we have ever used. Every detail was covered and communicated to us. The were courteous and extremely professional and responsive. Their project management team was a 5 star pleasure to work with. We will use Greencal for all our future needs!!!”

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“Very responsive and communication was superior. Even though it was raining, they went beyond my expectations to secure and protect my house. Will be calling on this company for a garage roof in the future. Thank you Tim, the project manager to answer all my qu…”

“Very responsive and communication was superior. Even though it was raining, they went beyond my expectations to secure and protect my house. Will be calling on this company for a garage roof in the future. Thank you Tim, the project manager to answer all my questions and always set my mind at ease. You are so caring and there for the customer.”

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“I hired Greencal to reroof my home. Since we just moved into this property we had to be strategic and careful about financing a major project like this. It was important to find a company that could work with our situation and provide a roof that we could prou…”

“I hired Greencal to reroof my home. Since we just moved into this property we had to be strategic and careful about financing a major project like this. It was important to find a company that could work with our situation and provide a roof that we could proudly and confidently look at everyday in our forever home. I recommend using a Greencal for your roofing needs!”

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“Very happy I had them do my house stucco and paint. They were always on time and did exactly what they said they would. My house had some areas where the stucco had to be re done and they did a beautiful job blending the new stucco pattern with the old. Easy…”

“Very happy I had them do my house stucco and paint. They were always on time and did exactly what they said they would. My house had some areas where the stucco had to be re done and they did a beautiful job blending the new stucco pattern with the old. Easy to work with and quality results.”

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“I recently had my roof replaced and couldn’t be happier with the experience. The entire process was smooth from start to finish. The team was professional, punctual, and kept everything clean and organized throughout the job. They clearly explained what was be…”

“I recently had my roof replaced and couldn’t be happier with the experience. The entire process was smooth from start to finish. The team was professional, punctual, and kept everything clean and organized throughout the job. They clearly explained what was being done and made sure all my questions were answered along the way. The quality of the work really stands out — the roof looks great, and you can tell they paid attention to the details. They also completed the project on time, which I really appreciated. Overall, I highly recommend them to anyone looking for reliable and high-quality roofing work. I’d definitely use them again in the future.”

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“As a single, older woman I have had some unfortunate experiences with the contracting industry; my experience with Nick and Trevor was very positive. They spoke to me appropriately, respecting my intelligence as opposed to thinking I couldn’t possibly understa…”

“As a single, older woman I have had some unfortunate experiences with the contracting industry; my experience with Nick and Trevor was very positive. They spoke to me appropriately, respecting my intelligence as opposed to thinking I couldn’t possibly understand. The crew were polite and respectful, as was the office staff. They were able to complete the project while I was away so it was an easy reroofing job for all concerned :-)”

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“The process to have the entire exterior of my house painted was easy and started off in a very comfortable setting. Everything was explain and there was never a moment I felt pressured. I was given choices and time to think everything over. The men who came to…”

“The process to have the entire exterior of my house painted was easy and started off in a very comfortable setting. Everything was explain and there was never a moment I felt pressured. I was given choices and time to think everything over. The men who came to start the project were respectful and communicated with me at all times. I would 100% recommend this company!”

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“Huge thanks to Hazel (the jefa), Mike (sales), Megan (marketing director), Javier, Tony, Yvonne, Crystal, and the whole team. Despite 2024 storms, your communication, professionalism, and punctuality were spot-on. Leaks gone, 20+ years of neglect and waste ta…”

“Huge thanks to Hazel (the jefa), Mike (sales), Megan (marketing director), Javier, Tony, Yvonne, Crystal, and the whole team. Despite 2024 storms, your communication, professionalism, and punctuality were spot-on. Leaks gone, 20+ years of neglect and waste tackled. Now, back to focussing on the inside, one room at a time, becoming a pillar for those looking to rebuild like we're doing here, from the top down to the ground. Prosperity comes from labor!”

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“Super amazing company. Their work comes with a warranty if the do the whole job. They fix wood damage perfectly. They’re super clean and even take a magnetizer to clean up nails. They lean towards doing more work to make sure their work will last. I mentioned…”

“Super amazing company. Their work comes with a warranty if the do the whole job. They fix wood damage perfectly. They’re super clean and even take a magnetizer to clean up nails. They lean towards doing more work to make sure their work will last. I mentioned that there was an oil stain and they’re going to power wash the floor no problem. They’re an absolute joy to work with and feel very lucky that I meet them!”

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