I cannot recommend Mark at Telesystems highly enough! I have an older home with no existing ethernet hookups and a pretty complex setup--over 25 cables needed to be run up from the crawl space and down from the attic, plus installation of a rack with switches. Mark handled it all with absolute precision and an attention to detail that was nothing short of a masterclass in how this kind of work should be done. As someone who works in tech, having a reliable and high-performance network is critical for my daily uploads and downloads--and thanks to Telesystems, everything came out perfectly. The setup is not only functional but also incredibly clean and professional. If you're looking for someone who truly knows what they're doing and takes real pride in their work, Mark is your guy. This was A+ service from start to finish. read more

Telesystems - Telecommunications Near Me - San Diego, California

Prompt service. They came up with a game plan and executed to my satisfaction. We ran into a service provider issue, but pressed a head until resolved. I had some follow-up questions that were immediately answered. I recommend for a personalized network set-up. read more

Mark did a great job on my project. He responded in a timely and professional manner, answered all my questions, and showed up when he said he was going to. The work was completed in a quality fashion. I'm sure he could have made it easier on himself by cutting corners, but he made sure to do the job right. read more

Mark was timely and responsive to a request for urgent triage and resolution to allow other project contractors to meet their appointments. He was pleasant to interact with, informative, and answered questions and additional support requests. Great guy, great service, prompt resolutions. read more

A single phone jack in our 30-year old home randomly stopped working causing all but one phone in our home to stop working. I called a few leads from yelp reviews but most (even some whose websites said they would do "small residential repair" work) turned down my request. Mark answered the phone on my first call on a Thursday and agreed to come to my house the following Tuesday. He arrived on time and it ended up being more complicated than expected due to an unusual wiring configuration done by a kitchen remodeling contractor done a few years ago as well as a defective jack and splitter. The multiple causes precluded a simple fix and necessitated some "sleuthing" to determine the actual causes. Mark was able to diagnose and repair the issues (relatively) quickly. His 40+ years industry experience were invaluable in resolving the issue and solving our "small project" problem. I highly recommend Telesystems for residential phone line repair. read more

Mark was great. He installed our cameras for us and really knows his trade from years of experience. Did the project to our specifications with a fair price tag associated with the work. Thanks my man! read more

Dave, was very prompt and did a great job adding a network cable from our hub upstairs to our downstairs entertainment area. Will definingly use again for future work. read more

Mark was an absolute pro at getting Ethernet cable to a difficult section of our house. Could not recommend him enough! Thank you!

If you have a complicated situation with cabling or wiring, Mark is your guy. I had a disaster with installing internet in my condo after my contractor cut my coax cables and literally hid them in the wall. After much investigation, Mark was able to locate where the cable was cut and then spent a lot of time carefully reconnecting the cable lines properly. He asked great questions to get to the root of the problem and is very analytical. I had 3 other prior technicians who were not able to figure it out. He was very persistent in his efforts to figure out the issue until it was resolved I absolutely recommend him. read more

I had a complicated situation and Mark fixed it. It wasn't quick or easy, but he kept at it and found the problems and did the repair. He's extremely knowledegeable, very tidy on the job and personable. Call Mark before you try anyone else. read more

They got things done within their estimate. Also happy to come back to do additional work.

Mark was wonderful, communicated clearly, was on time. Went above and beyond to help with things that did not pertain to what he was hired for. Very outgoing man. Would definitely recommend. read more

Outstanding job helping me put in a cad 5 wiring for my new office location in a difficult location. He was responsive in finding a solution and didn't freak out when I was trying to get the system running. I learned a lot from him and Dan Martin to set up wiring for a desk. I would trust him to help me solve a difficultly networking solution in the future. he helped me organize my networking panel and get all of my wireless routers running. Honest pricing. And well worth the time read more

I am not one to give reviews, unless the service or product is astonishingly good or (in this case) BAD. Quick search of reviews shows a pattern of similar behavior... Not sure if this is the owner, or just a temperamental employee, but whomever I dealt with was hostile, rude and apparently had no interest in gaining my business. He was convinced that I was my neighbor, who had apparently called him days prior for same issue, and eventually hung up on me. WTF? read more

Mark is the absolute BEST. My office had new phones installed (by another company) the next day there was a wiring issue. I called Mark, and he made it a point to come right away and resolve this issue. After about 2 hours, our problems were resolved, and all the wiring was left better than it was installed. I am grateful for Mark's knowledge, attention to detail, and skill. I recommend him 1000%. I wish we could give him more stars. read more

I needed some ethernet wall jacks fixed. He recommended that I needed a switch, so I bought one prior to his arrival (he even recommended the best / inexpensive model). He quickly confirmed his phone diagnosis, installed the switch and helped me confirmed the ethernet ports worked. read more

Mark and the other employee's at Telesystems really know their stuff. We had to switch out an old phone system with AT&T into a new telephone system and talking with AT&T it sounded very complicated. Mark was awesome though. He's a funny dude. He knows what he's doing and I would definitely recommend him. Mark also came back and hooked up a new Internet router that is way better than the one AT&T gave me. Matt C. read more

A total professional who knows his business. Completed work is by far top tier, totally impressive and hard to beat.

Telesystems set up our telephone entry gate system to continue to work after we disconnected our landline. We were told by others this is not possible. There is no signal on the line but a click when the code is received and the gate opens or closes. This was several years ago and it still works great. We highly recommend them. read more

Got a call back quickly and was able to resolve issue over the phone. Great customer service

Mark fixed my fiber to landline phone connections, climbed ladders, and crawled under house. Great and gruff.

I needed to have some old Cox Cable service lines removed since I switched to Ting fiber a year ago. Cox wouldn't do it and told me to call a cable/network company instead. I called Mark and after a quick conversation, Mark realized he didn't have a tall enough ladder to reach the cable connection point mid-span. He called another company who did have a tall ladder and forwarded their number. I really appreciate the help and will certainly keep Mark in mind for future networking needs. read more

We recently suffered a serious flood in our house and during the demo the workers managed to trip up the phone line to that area of the home. We called ATT and the soonest they could come out was Dec.,21st, (at the time) 4 weeks from our call! We couldn't put that room back together without the phone jacks up and running so we found Telesystms. Mark was amazing! He was on a job at the time of our call but still showed up right at the time he said he would. He managed to get everything up and running and even helped out with an old fax machine (yes, they still make them) that my Dad was using for his landline! I cannot say enough great things about Mark. He was patient, professional, and very knowledgeable. He also has a great personality. Should you ever need assistance with a landline, or anything this guy does, Call Him! Thank you read more

Mark is your guy! Don't waste your time calling anyone else. He knows phones and carriers. We moved offices in UTC and brought a 13 year old phone system with us instead of buying new phones. Mark was one of the only people who knew exactly what was needed for it to work and didn't try to upsell me like all the other phone guys to buy a whole new system when not necessary. Honest, fair, professional, efficient and knowledgeable.... everything you would expect and more, just call Mark, he will take care of you. read more

We just had Mark come out to attach some of our phone lines to the server? and check our data jacks that weren't working. He was on-time, prompt, and knowledgeable about any questions I asked. He was meticulous about his work and it shows in the end product. I'm not quite sure what magic happened but everything is working great now! I would definitely use him again and recommend him! read more

When we bought a house from the 60's I wanted a structured cable system installed, but had a hard time finding someone to do it. After having three other installers work on it (a recommended contractor, a friend of a friend and Cox) it worked, but the closet looked like an exploded spaghetti factory. I finally resorted to Craig's List and found Telesystems. He came out and cleaned everything to my very picky standards and charged a fair price. That was about 18 months ago. Just this last week I was having insulation installed and one of the phone lines went dead due to the insulation installers crawling around in the rafters. I called Telesystems and he came over promptly and again made everything work and left the closet looking neat and tidy. If something goes wrong again I will definitely call him back! read more

Professional, friendly, knowledgeable, prompt, and went the extra mile. We are a very small organization that relies heavily on our phones for our business. We asked Telesystems to add two phones to our existing system. They did that AND improved the system that was already in place by teaching us how to use it. We were paying for voice mail through our phone carrier and it was already in place in our phone system. Telesystems pointed out this duplication to us resulting in a reduced monthly phone bill as well! I highly recommend this professional team. read more

Fast, professional, friendly, fair and knowledgeable With no phone service for 2 days, I was so pleased that Mark could come right out. The Att repair person couldn't locate the issue and wanted to charge me exorbitant fees to install new lines instead. Mark was tenacious and finally located the problem. I was impressed with how quickly and efficiently he worked. But most of all, his professional pride kept him going until he had the job done. Hooray! What was really terrific was his incredibly fair bill after all that he had to go through. I definitely want to recommend him to others. read more

I cannot say how pleased I am with the work Mark provided. He was punctual, worked quickly, and worked clean. We had two other vendors try to fix a problem. Neither were able to without charging an astronomical amount. Mark was able to identify the problem and fix it in 20 minutes. I highly recommend Mark and telesystems and we will most definitely use them again! read more

I worked with Mark on a project for my employer. He installed new category 6 Ethernet, terminated and installed new plates and keystone jacks, and assisted with cleaning up previous work. I really appreciated how responsive he was to completing a project on short notice and ensuring his work was done thoroughly and correctly with a great eye for making sure his work was visually presentable. I would not hesitate to contact him again for low voltage project. read more

After AT&T changed up the wiring and service in my office we had several issues with our phone system. Mark came out the same day I called him, spent hours to trouble shoot the issues and fixed what he could and contacted AT&T to come out and fix the issues with the equipment they installed. Telecommunications is a foreign language to me so it was great having Mark deal with AT&T directly to problem solve. When AT&T came out the next day, Mark called in and spoke to the technician several times to make sure the problems were solved. His follow-up was really impeccable and much appreciated. I highly recommend him and will use him for all my future telephone issues. read more

As Kathi B. wrote, I found Mark to be "Professional, friendly, knowledgeable, prompt, and went the extra mile." I'm in the process of converting a hallway utility closet into a linen closet. This closet used to contain the old furnace (relocated to the attic) and a previous security system, so there were several mysterious wires that needed to be identified and either removed or re-routed. My home is roughly 40 years old, so who knows what strange things have been done to it before I bought it. Mark arrived promptly, was friendly and knowledgeable, and really took the time to help me figure out what the wires were. He seemed as committed to figuring it out as I was. We removed some obsolete wiring, and he re-routed some phone lines. In the course of working with Mark, I also told him that I'm considering new windows. He called me the next day, as promised, and referred me to a place where I might get a good deal. In the end, I really appreciated Mark's patience, dedication and reliability, and his rate was very reasonable. read more

I am disgusted by how rude and unprofessional these guys are. Called for a general question and to see if one of them would come out to my office to help fix my phone wiring, the gentleman on the phone immediately made it sound like I was a complete idiot after explaining to him what my issue was 3 times. I got so annoyed at his attitude I had to hang up. Next morning he gives me a call, didn't recognize the number, I answered and all he said was "did you figure out what the problem was" in an extremely rude manner, I answered "what are you talking about" he replies "your phone problem" I said "yes I did" before I can even finish my sentence he hung up. I will never, ever recommend these guys to people who are having the same problems I am. Learn how to be a little more polite or pick a different field because clearly you hate your job from the way you sound on the phone. read more

I am very happy with the service that Mark provided. My landline phones had no dial tone. Turns out there was a short. Mark was able to come out within an hour after calling and was able to fix the problem. He was very thorough in his work and put things back that had to be moved. The charge for the work was very reasonable. I would recommend him to others. I didn't find him temperamental or rude at all. read more

After talking to the owner of this company that uses 2 alias and he was rude and calling me a liar! After I stated to him that he charged for a job I was not satisfiedhe continuously kept arguing with me over the telephone today ,unbelievable some people cannot take criticism well and this is clearly an owner that does not! Instead of arguing maybe you should try to fix the problem I think I found the root of the problem it's him the owner! Take ownership when you are wrong! I am A dissatisfied customer and I have the right to put up a review and I don't need anyone to sit there and talk to me that way! And Mark/Dave I really don't care for anymore harassing phone calls.. read more

Switched Phone companies and needed someone to move our lines from one block to another (internal wiring) We found him on Craigslist. He was polite on the phone. He is a contractor and current with his licensing through the CSLB(Contractors State License Board) as of October 2012. We wanted a professional even though our neighbors Sunshine communications always handles the switches for Cox and agreed to move the lines for us.. anytime you get a favor it is always as time permits. He made the changes. He had a bit of a qwerky personality but seemed ok.He does bring his dog but asks you if it is ok that he WILL be bringing it...ok?...yes? When he was finished Cox had not yet ported two lines over. This would be done at the end of the week. Instead of us being able to handle this via the neighbor...., he instructs COX to call him direct when our numbers were finished porting and for some reason he dispatched himself..( I didn't know this until after he showed up to finish the port and needed payment) So he showed up for the 2nd time and instead of the 150.00 that we had already paid him, it was an additional 60.00. I mentioned to him that he told me 0.00 was his rate to come out but that we agreed upon 150.00 total. He INSISTED and did not let it go.... that his minimum was 60.00. I said ok I will pay it but we wont use you again. he said ok well I know what I said on the phone. I said that is interesting because initially it was 150.00 to move all lines and you said IF, you had to come out to move the last two lines 50.00. now all of a sudden 60.00 and who asked you to co me out anyways. I understand coming out is not free. But, to tell me that his minimum was more than what was agreed, act on our behalf and dispatch yourself, unprofessional. I would not use him again, ever. read more

Mark is the best! I searched long and hard for san diego phone systems and san diego phone repair people and came up empty handed. He's reliable, his prices are extremely fair and he knows how to do pretty much anything related to phone systems. I've thrown every odd job his way, from setting up a multi-unit camera system to taking an old phone system I got for free and making it fully functional again (saving me thousands of dollars). Mark can be a little shy but once you get to know him, you'll see that he not only knows his stuff but he's a sweet, caring person too. I recommend Mark to anyone that needs phone services and I'd gladly use him again. read more

Following a power outage, our office phones had power but no dial tone. The phone manual didn't help, and the connection from outside checked out fine. I emailed Mark after hours, and the very next morning our phones were fixed! He explained that we would be back in the same boat the next time this happened, and offered to install a backup battery to avoid the inconvenience and repair bill. His dog was really cute and helped him navigate our treacherous attic! Thank you for saving the day and being proactive! read more

We needed our business phone system to be repaired. I called Telesystems and spoke to Mark and he was on site within 2 hrs and repaired our phone line saving us from losing business. Price was totally reasonable and work was done quickly and efficiently. read more

We hired mark to wire our new 5000 square foot office. He pulled in over 60 new internet lines for us all throughout the office. He has super fair prices and got the job done just as he said he would. Very professional and easy to work with. After the job was done he called a few time to make sure everything was working correctly. Would highly recommend Marc for any job in the future! read more