I found this company top notch in every aspect. And while I did not ultimately go with them for my survey because of other factors, I wish I did. They clearly know exactly what is needed and provide quality service for a fair price. read more

Denn Engineers provided a topography survey for my property in Redondo Beach in 2023 with a reasonable price and they were very professional and fast! I needed them to have a revision of the survey sheet 3 years later (2026) and they did it for free and very promptly! I highly recommend using Denn Engineers. I also should mention that dealing with the office manager, Mark Conard was a delight! he is very helpful, responsive and professional! read more

Thank you to Denn for providing a land survey of great quality and value and for going the extra mile with their timely customer support. Special thanks for George Shweiri for helping with my survey, and for the great value on their services offered. Thank you Denn, we'll see you on the next survey need! read more

I've reached out to multiple different land surveyor companies and Denn Engineers has hands down been the best company out of the lot. They have been the most responsive and provided the most transparent quote outlining everything that we would be provided by them for the cost. We even inquired about an adjustment for the service required and they provided an amended quote before a couple others even sent their first quote in. Our circumstance may have changed, due to external reasons not needing to be mentioned, but if we do need to hire a land surveyor it will 100% be Denn because of how professional they were and how they actually value your business. read more

Fast and prompt responses, knowledgable and professional. Provided details of needs prior - was a good experience.

They are helpful and responsive. They had a tough case because a neighbor/contractor had removed and placed medallion in a spot to change my property lines and give themselves extra sf. They worked with me to figure it out and went the extra mile read more

I lost my house in the Pacific Palisades Fires and wanted a property line survey and they would not provide service...too far away from their office. You can see how community minded this company is and how compassionate they are so I would try any other company instead of this one. read more

Originally I was told I would receive our survey 7 business days after the survey was completed. It is now 2 weeks from when the survey was done and I have nothing. When I called they said I would receive them Friday (10 business days after it was done) at that point I was l told they would be in my inbox end of day Friday. It's Monday and I have nothing. I'm beyond frustrated as our entire team is waiting for the survey so we can submit plans to engineering. This has been such a frustrating process. I would never hire Denn again! read more

Denn Engineers was incredibly easy to work with and got the job done. The company is incredibly responsive to emails and phone calls. At first I was unsure of what type of survey I needed for my projects (boundary, topography, etc.). They answered all of my questions, explained the type of survey I was looking for, and then was flexible with my schedule and made sure all deadlines were met. If you need a survey in the Los Angeles area, I highly recommend. read more

I am building a back house and shopped around for an engineer. I then realized I have a friend who builds high end luxury homes and he referred me to Denn as he solely uses them on every project. I was not disappointed. The schedule was a few weeks out but that was expected due to Covid. The price was cheaper than any other quote I got and they didn't charge me for a few extra services I asked for. I would definitely recommend. Thank you! read more

I asked Denn (Mark) for a quote and got a super quick response and estimate within 24 hours!! Although I ended up not needing a survey to start... they were able to provide me with an extremely detailed step by step solution to my problem that saved me tons of money and time. This company is here to serve you and provide solutions for YOU! I very much appreciated this as not all companies operate this way. read more

Rarely do I bother to do a review, but Denn deserves it. The world would be a better place if everyone - and every business - focused on and recognized the customer's point of view and "did the right thing". Highly recommend Dean! Integrity and talent! read more

Very responsive and excellent communication! Explained everything nicely beforehand and during! They marked it well and received drawings quickly:) read more

I contacted Denn for a quote mid-afternoon Friday and got an almost immediate response from Mark. I received said quote first thing Monday morning! I was very impressed with the quick turnaround. Should my husband and I move forward on our house project we will definitely be utilizing Denn for our boundary survey. Thanks again Mark! read more

These guys are a class act. I've now worked with them on three different projects and occasions and they were nothing but professional. In the last instance, I needed a minor change, made on a survey that had been done a while ago. Other engineering companies would have probably charged to make this change and adjustment which was not requested originally. These guys did not even mention it and in fact, did the work and emailed me within 12 hours. Unheard of ! This will be my go to for any survey project that I have going forward I highly recommend them . Not only are they amazing at what they do but in addition to that , their customer service is also top notch. read more

I was referred to Denn Engineers from my draftsman and was very satisfied with the work. I did my due diligence calling various land surveyors and Denn Engineers offered the best service (according to reviews) for the best price. All email and phone call communications were accomplished with ease in a clear and concise manner. I never felt in the dark about anything. I just received the work today and it looks amazing. We can go into our home renovation and ADU build with much more confidence now. read more

I have used Denn Engineers several times for different property types and the communication and service is great. Calls are answered or returned Promptly and they scheduled us for our survey and completed the work as requested. Mark and his team run a great organization are always courteous and professional on site. Our survey and any necessary documentation was returned quickly and we were able to submit to the city on time. I would highly recommend Denn to anyone. read more

It was super easy to schedule my house survey for the garage remodel. The surveyor showed up on time and I got my drawings via email and mailed in a timely manner. Very happy with the service. read more

Denn Engineers did our survey in 2003. We are about to start a large renovation project and our contractor could really use it. We had a hardcopy but with all the computer changes since 03 we couldn't find the file. I called Denn and then were able to find it, sent it to me within a couple hours! So nice of them after nearly 20 years! read more

We bid out several different companies when we were looking to get a Boundary Survey completed. Mark Conrad was our contact person at Denn and throughout the process from bid, to scheduling, to final report, he was very responsive, thorough and delivered on all expectations. Comparing Denn's detailed proposal, cost and responsiveness in addition to the good reviews, Denn superceded the other companies. While Denn was very busy and we did have to wait a little to get on the schedule, we were offered an earlier time slot when one came available and the report was completed in a very timely manner. Would highly recommend. read more

FANTASTIC experience! Mark Conrad and his team were extremely responsive and efficient. They completed my survey review and expedited the process for me...totally professional and extremely friendly! Highly recommend Denn! read more

I found Denn Engineers from a recommendation on the NextDoor App. The whole team have been brilliant from start to finish. We needed a surveyor to help us with the planning stages of remodeling our home. Denn Engineers were extremely efficient, reasonably priced and thorough in their work and their explanation of what was required by the City. I'm super grateful to them and can highly recommend them. read more

I have a commercial property in Lawndale that needed substantial changes to the parking lot to meet ADA requirements and I was in a bit of a time crunch. The City required drawings submitted for approval that had property lines and easements specified. Denn Engineers squeezed me into their calendar and made the process seamless in getting their digital file to my architect as soon as their survey was finished. I highly recommend them. Excellent customer service. read more

We have been using Denn for years. Never have to worry about the job getting done right the first time. They have also helped me out big time with property line disputes with neighbors and city inspectors. they really know their stuff. Have referred them to many other clients also who have had good experiences. Keep up the good work. read more

Denn Engineers were excellent and easy to work with. I appreciate the professionalism, communication, and timely responsiveness. Definitely would work with them again. read more

Denn Engineers was great to work with. Every architect we talked to regarding our build in Hermosa recommended them and I now know why. They are very professional and Mark Conrad who was our contact was available to answer all our questions. Being first time home builders they helped us though this phase of our project. Mark and the team at Denn are the best at what they do. No doubt about using them again!! read more

The team at Dean Engineers was great to work with. Mark Conrad was our contact and he was responsive and delivered on time. Highly recommend them. read more

Mark at Denn Engineers was super responsive. We received a proposal the same day we e-mailed our request, and within hours of us sending in the signed documents the survey of our property was scheduled for a week later. We were told the results of our survey would be drawn within a week and we received them exactly 1 week later. Great customer service! Glad our architect recommended them. read more

Professional and courteous. Appreciate their effort to move the survey date sooner than scheduled, which showed their consideration for the client's timeline as much as possible. Highly recommend their service. read more

Denn Engineers was fast, efficient, and honest. We very much appreciated their reliable expertise and highly recommend them. No task is too small for them. It's refreshing to find a company that is so organized and professional in this industry. read more

I give Denn Engineers a top-notch rating as they went above and beyond on my project! My husband and I hired them to do our survey and they were incredibly thorough sorting through all the legal documents and visiting the site on multiple occasions to make sure the survey was both accurate and complete. We especially appreciated the fact that they were sensitive to city timelines and made sure the work hit all the deadlines for completion and certification. Gary, Mark, Mark and Dana were the true professionals every step of the way. We recommend them highly!!! read more

I used these guys on every project and they are fantastic. They know South Bay like their own pocket. They are fast, reliable, and knowledgeable. Communication is on point. They return the phone calls quickly and answer as many questions as you might have (if you are beginner in construction). I warmly recommend them. read more

I want to thank Denn Engineers and Mark Conrad (main contact) for making this process so easy. Not only was Denn great to work with the price was great compared to other companies that would have ripped me off. I would definitely work with them again! read more

I am a local architect in the South Bay and have been working with Denn Engineers for over 10 years now. They are, with out question, the quickest and best around. I have used them for hillside projects, projects at the coast, projects in Palos Verdes, Torrance, Hermosa, Manhattan, RPV, Rolling Hills, Los Angeles, San Pedro, Westchester, even Beverly Hills, all over. They are accurate, reasonably priced, very easy to work with, and have very good communication. There's not much else I could ask for. They are my Go-To surveyors. I have had them survey about 40 projects so far, and I plan on continuing to use them for the rest of my career. They are professionals. I am thankful to have them on my team. The required information in Palos Verdes, in particular, can be very complex, and exhaustive. Denn have come through for me every time, including ridge height certification. With regards to the 1 star review, I am surprised to see that. Though I do not know details in that particular case, what I do know is that a survey needs to be re-certified by law. Surveyors are licensed professionals, like architects, and, as such, have mandated requirements from the state with which to operate. Surveys must be re-certified for a number of reasons: age, change of ownership, change of contour, etc. In most cases, this is a quick process to re-certify, and, if things haven't changed, runs about $300 or so. They need to come out and verify tags (the little washer-thingys that are sometimes embedded in the sidewalk near a property line). Sometimes those tags are removed, damaged, or any number of things can happen to them, sometimes they aren't physically on the property line at all and their exact location needs to be cross-referenced and coordinated through the Recorder's office to find out where the documented, recorded reference tag physically exists. Sometimes it's blocks away. The surveyor must come out and make sure everything is copasetic. The surveyors are the first step in the design process. If they make a mistake, it will have major, expensive ramifications down the line. I've had this happen on problem projects where I've been hired to come in and fix things other people have screwed up. An incorrect survey can crush your budget, and schedule. I've never had that happen with Denn. Not once. The surveyor must, most times, record his findings with the county. The survey becomes a legal document which actually overrules the assessor. The assessor may say you have a 30' x 90' lot, but Denn may find that it is slightly smaller or bigger and this will affect all of your setbacks, in all cities. In Hermosa, in particular, I had a project on Loma where the property line went right through the middle of the house! In the initial review, the city requested a 3' setback from the property line!! As it turned out, with communication, that project was resolved and we moved forward. I would think that Dave B.'s problem could have been worked out as well. And, if it didn't, I'd be happy to help. It's a shame that the way Yelp is set up, it gives an average star rating based on 2 reviews (so far), one of which, did not even use the service provided by the company, where the review you are reading is being written by a licensed professional with a decade long track record of dealing with Denn. Sometimes reviews are written out of frustration, and this often seems to be the case with reviews on Yelp. I hope that you will give this review the appropriate weight when choosing your surveyor. Be confident in using Denn, as I have been. I spent the time to write this review, and hopefully set things straight because, quite simply, they deserve it. -Jeff Browning, Architect C34782 Model Design, Inc. www.model-design.net read more

Great company to work with. Everything happened on schedule just like they said it would. I definitely recommend Denn Engenering to all contractors laying out jobs, architects, and homeowners in need of a survey. read more

Denn Engineering did a good job of answering our questions, scheduling a timely appointment, arriving on time, being thorough and professional. Two thumbs up! read more

Denn Engineers provided my land survey in preparation for a home remodel. Mark was very quick to respond. They were booking jobs a few weeks out, which is likely testament to their great service. They had the survey report returned to me a week later. I'd definitely recommend Denn Engineers in the future! read more

Wow sitting here talking to my dad about my grandfather Mike Dennis the founder of Denn engineers...so proud to hear its running strong and that theres a Mike working hard and giving good service. read more

We thoroughly enjoy our working relationship with Denn Engineers. They are professional, easy to work with, have the technical expertise, and know the geographic area so well. read more

I had a great experience with Denn. I got my quote quickly, my survey scheduled as soon as they could, and the results were done within a week. Thank you for the great service! read more