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    JM Building & Construction

    4.9 (47 reviews)
    Closed 9:00 am - 5:00 pm

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    Response time

    50 minutes

    Response rate

    100%

    Services - JM Building & Construction

    Earthquake retrofitting

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    One corner of the crawl space retrofit.

    This could be a daunting process especially since it is not something most home owners know anything about, but Jony was good at keeping me up to date on each step of the process. It takes longer than one would think with permits and approvals, but he was on top of it and got back to me when things were ready to proceed to the next step. The work was done quickly and seemingly with efficiency. I would certainly recommend him for any retrofit projects.

    Crawlspace before_1
    Ron R.

    Earthquake retrofit and EBB process went great with JM Building. Jony made the process seamless answering all my questions and concerns. The crew were awesome during construction arriving on-time, putting in a full day and cleaning up afterwards. I highly recommend this team if you are in the market for foundation work. If you are looking to go through the EBB program, this company is a good fit. Prices are fair and they are great to deal with.

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    7 months ago

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    1 year ago

    Jony and his team were amazing. Professional, communicative and thorough. I've recommended JM Building to all my neighbors.

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    2 years ago

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    2 years ago

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    2 years ago

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    5 years ago

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    3 years ago

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    Jony M.

    My pleasure and thank you for you business!

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    2 years ago

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    3 years ago

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    Jony M.

    Thank you Ken! It was our pleasure working with you!

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    2 years ago

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    5 years ago

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    6 years ago

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    6 years ago

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    2 years ago

    Great service above & beyond will highly recommend jm building &construction to family & friends for retrofitting.....

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    3 years ago

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    2 years ago

    Great job and fast responds! Jony is professional and reliable! I would Recommend them to others ! !

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    3 years ago

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    4 years ago

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    Jony M.

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    5 years ago

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    Jony M.

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    6 years ago

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    3 years ago

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    Jony M.

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    5 years ago

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    Jony M.

    Thank you Grace for these kind words!

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    5 years ago

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    Page 1 of 2

    Ask the Community - JM Building & Construction

    Review Highlights - JM Building & Construction

    If you are looking to go through the EBB program, this company is a good fit.

    Mentioned in 5 reviews

    Read more highlights

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    Mark and Matt have visited my home for inspection twice now over the last few years. The…read moreprofessionalism and pride of ownership was clear from the moment they arrived, fashionably early I may add (being on time, an understandable challenge amongst LA contractors). We live in a 70 yr house on a hillside with amazing mountain views; but often besieged by the paranoia of being on a hill. Mark allayed fears both times, answered questions to explain the subtle phenomenon that concerned me every so often, & confirmed everything was normal. Inspections were thorough & no unnecessary work suggested. Often, homeowners aren't knowledgeable about civil and construction work. Speaking to these gentlemen is like speaking to professors who'll tell you clearly if you don't need work; and what you may need 15 years from now. We ended up being advised that nothing was needed to be done. The most remarkable example of integrity.

    The foundation team were professional from the initial contact, on time and willing to help get…read morework completed for the our center to reopen on time. Our 115 yr old center, felt solid and strong after the foundation was replaced. The team of Matt, Mark, Miguel and Juvencio listened to our special requests, cleaned up with precision ( left no evidence of any materials), and made the experience a positive one. We appreciate all the communication, accommodations and overall work performed Our preschool now has a more solid foundation, thanks to the team at Foundation Repair LA!! We highly recommend them.

    JC Retrofit Construction

    JC Retrofit Construction

    4.8
    (51 reviews)

    Juan came to inspect my foundation for a seismic retrofitting Project. Out of all the inspectors,…read moreJuan is the most pleasant and thorough, and he has many years of foundation experience that I was looking for. He found things that other inspectors missed and he did not oversell like other contractors did. I immediately feel he is a contractor that I can trust. He explained what my foundation condition is and the detailed steps he would take to bolt and brace it to make it earthquake safe. he even worked with my budget so that I'm able to go forward with this project. Believe me, there were some outrageous quotes out there. Big thank you to Juan for amazing customer service. I highly recommend him.

    Terrible Experience Absolutely terrible experience with this…read morecompany. I was originally told that my plans would be submitted within 3 weeks, but it ended up taking almost 4 months. That was an unacceptable waste of my time. On top of what I was already paying for the plans, I was hit with additional fees that I was not expecting. Then I was quoted $440,000 for a 400-square-foot addition, which was completely unreasonable in my opinion. The entire process was frustrating, expensive, and unnecessarily drawn out. I had to keep messaging them and emailing them to see where we were at in the process. I feel like my time and money were completely wasted. Do your research, get multiple quotes, and be very careful before giving this company your money. I would not recommend them based on my experience.

    Sunshine Foundation Repairs

    Sunshine Foundation Repairs

    5.0
    (190 reviews)

    After getting bids from four different foundation bolt and bracing contractors, one company clearly…read morestood out above the rest--Sunshine Foundation Repairs . Some contractors only walked around the exterior of my home, while others took a quick look underneath. Jon, the field representative from Sunshine Foundation Repairs was different from the moment he arrived. He was on time, friendly, professional, and immediately went into the crawl space to perform a thorough inspection. I was impressed that I received a detailed proposal the very same day. The biggest reason I chose Sunshine Builders was the quality of Jon's inspection. He was the only contractor who identified sagging floor joists in my living room, which likely explained the squeaking floors I had been hearing. He documented the issue with photos and recommended the appropriate repairs, giving me confidence that he was looking out for the long-term integrity of my home--not just trying to sell a standard retrofit. Throughout the entire process, Jon kept me informed every step of the way, from permitting and plan check to scheduling the installation. Communication was excellent, and I always knew what to expect. On inspection day, everything went smoothly. The contractor arrived prepared with all the required paperwork, met with the City inspector, and ensured the inspection was completed without any issues. Jon made an outstanding first impression and represented Sunshine Foundation Repairs exceptionally well. His thorough inspection, attention to detail, clear communication, and guidance throughout the entire process are the reasons why I chose Sunshine Foundation Repairs I would highly recommend them. The proposal bid was right where my budget was.

    Sunshine Foundation Repair did a great job. The work was completed in the first week of…read moreMarch--sorry for the delayed review. The crew arrived early in the morning and got started right away. Everyone was in sync and worked efficiently, completing the job faster than I expected. They also left the crawl space clean and removed all debris and trash. I'm very happy with their service and would definitely recommend them.

    Sunshine Foundation Repairs

    Sunshine Foundation Repairs

    4.9
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    We reached out to yelp and was inquiring for a a foundation inspection. Sunshine Foundation was the…read morefirst to reach out and was immediately accommodated for the next day. We were on a time constraint which was appreciated. I was sent an inspector by the name of Golan who was knowledgeable , thorough and professional. He came and did the inspection and did a great job of explaining the result of the inspection to me where I could understand it. I would definitely recommend Sunshine Foundation but I would especially recommend Golan to anybody due to his knowledge and efficiency. I was very happy with the inspection and would recommend them to anyone.

    I have nothing but great things to say about my experience thus far with Sunshine with my seismic…read moreretrofit. Adam visited my property and spent almost an hour mapping out the entire floorplan and created a detailed plan of attack - all free of charge!!! He carefully measured whether the floor was uneven using a laser, took numerous photos of the areas of concern in the crawl space (wearing a full hazmat suit, goggles, and a high-end face mask), and patiently answered all of my questions. I had another vendor visit the property, and he only spent 3 minutes poking his head around - he did not even enter the crawl space! Therefore, it was an easy choice to go with Sunshine. I felt comfortable enough with Adam to ask him to visit my parents' home for a possible retrofit. Unfortunately, this structure does not have a crawl space / cripple walls and thus is not able to be retrofitted. I feel very comfortable in recommending Adam for other projects, and I look forward to engaging with Sunshine again soon. Thank you, Adam!!

    JM Building & Construction - foundationrepair - Updated August 2026

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