We've used Tinpa a couple of times. David always explained things very well, presented some different options, and had great pricing. We'll definitely use him again. read more

What can I say about David from Tinpa Electrical that is not positive? David is fabulous! We moved into our townhouse in 2013, and David has installed 1 chandelier, and 3 ceiling fixtures for us. Also, he has come out on short notice several times to fix burned out sockets, and other electrical issues we've had. Most recently, our kitchen lighting was flickering and went out completely. I contacted David, and we scheduled an appt for 2 days later (he's busy). However, he contacted my the next day and stated that he could come that day. He diagnosed the situation and fixed it. Not only is David a competent electrician, he is also a humble, kind, and respectful person. I would highly recommend David, and I will recommend him to all of my friends. read more

David was very helpful and thorough. He methodically problem solved our electrical issue. I appreciated his professionalism and courtesy. Will totally call him if we need an electrician in the future. read more

Right when I had my brand new electric dryer delivered and installed, I had the misfortune of discovering that the existing 220V outlet had never been wired to the electrical panel. A quick search on Yelp led me to Tinpa Electrical. David came out on a Sunday morning and did a very skilled, efficient, and extremely reasonably priced job. Nothing beats freshly dried laundry! The price came in under the estimate and I wouldn't hesitate to call Tinpa again if I need electrical work in the future. read more

David was very responsive via text message during initial contact with him. However, in one of his text messages he mentioned he doesn't have a business license to work in Oakland. He is only licensed to do business in Alameda. read more

We had some electrical work we wanted done in our circa 1920s home and found David through yelp. He came and estimated how long the job would take and gave us a very reasonable hourly rate. Not only are we very satisfied with his work but he came in under what his estimated time would be! He really seemed to have our best interest in mind. We are very happy with Tinpa Electric. read more

Dave handled electric lines to new tankless water heater, pulled the city permits, coordinated with other trades, got the inspector's sign-off, was courteous, skilled and neat. I have found my electrical contractor. Thank you Dave. read more

Tinpa is outstanding! Efficient, knowledgeable, and good value! Thank you for a job well done.

I left a voice message on David's phone but didn't hear from him in the same day. I thought he might call back at the end of the day, so I waited. But nothing happened. The next morning I still didn't hear anything from him. Therefore, I called another electrician, but he was too busy and unable to schedule an appointment until the following week. So I planned to wait a little longer since now I have someone who was going to get back to me. I then wrote a review on Yelp giving one star for not getting any response from David. In the afternoon David called me back and was able to schedule an appointment for the following day. Later on he found out about the Yelp review and asked me to change the review. His explanation was that it takes a business day for him to return calls. I understand that he was busy on his job and he was getting too many calls. So I agreed to change my review. Initially I was going to wait until the job was done to write a nice review, but I couldn't find out the result until just now because of an unexpected complication. In the meantime, David asked me to remove the previous review. So, not knowing how to remove the old review, I wrote a new review. I don't appreciate being pressured. read more

I have used Tinpa for over a year now. I initially hired David to install a bathroom fan, alone with the required switch. I was planning on cutting the hole for the fan myself, but I quickly realized that David would do a much better job than I, and much faster! He finished that job in less time than estimated, and from then on David has done many jobs in my house, and has done electrical work on my sailboat as well. I cannot say enough about David's professionalism, his honesty and kind ways. You will not be dissatisfied if you hire Tinpa for your next project; large or small. read more

Furnace stopped working. Slept with both dogs for heat last night. PG&E came today & determined it's not a gas or furnace problem, but an electrical one. I've never hired an electrician. Where to start?!?!? Yelp, of course. Tinpa Electrical had nothing but glowing reviews. Called. Wei Guo Zeng (aka David) & his wife were here within 15 minutes. Problem was loose wires in a scary electrical box. Fixed within 20 minutes. VERY reasonable (low) rate, especially considering it was WEEKEND service, with very short notice. They even removed their shoes before coming into house, which, in my house-puts their socks at risk! Nice, friendly, excellent service. Ten stars. read more

David is a top-notch professional. He is reliable with good pricing. We had a problem with our outdoor lights and circuit breaker. Another electrician couldn't solve the problem. David came by and fixed the problem within 90 minutes. Great guy! read more

My cousin recommended David who did the all the eletrical at a house he purchased last year. We have a 1930s house with old tube and knob wiring in our garage and ever since we got our new high efficiency washer, the lights would flicker in the living room whenever we did laundry. David was great in replacing some of the knob and tube wiring that we had since I didnt want to replace everything in the garage and then redoing some of the lighting I had in the garage along with putting my washer & dryer on a dedicated circuit and doing a couple of other items and all within a reasonable price. I will definitely be using David again for my electical needs. Plus he was great in doing the work in So. San Francisco when he's located in Alameda. read more

I called David on a Saturday afternoon and he was able to come by same day. He replaced a faulty outdoor GFCI which kept tripping causing my irrigation system to be ineffective. He quoted a reasonable price on the phone and stuck to it. He wouldn't even accept a tip for his speedy and efficient service on a Saturday. I couldn't have found him without Yelp's help. Thanks everyone! read more

I absolutely find it rewarding as a Homeowner when you're able to support a local business. David with Tinpa Electrical was OUTSTANDING! He was always on time and responded in a timely manner via phone, e-mail or text. His quote was very fair, especially considering we had more electrical work done than we anticipated. David is very familiar what is regulation (code) within Alameda. He took care of all the busy work for us such as secure permits, inspection and coordinate with AMP. After a job was completed, David would make sure the work area was clean and safe. He is very respectful when entering/exiting your home and explains things very well so you have an understanding as to what changes are taking place (or need to take place). I felt that David was very honest in the work that needed to be done and he did not try to up sell us with items that were not necessary. Thank you David for a job well done! We will recommend you to friends and family and will definitely call upon you for any future electrical needs. read more

I can't recommend Tinpa highly enough. David was prompt, reliable, professional and reasonable. And his wife even cleaned the cover to a light fixture. Great company. I am very satisfied. Thanks so very much. read more

I called David for a simple problem which he helped me fix over the phone. Very helpful and saved me having him or someone else come in. Definitely will use again! read more

I had the original knob & tube wiring in my 1920s house brought up to code by Tinpa Electric. They did an excellent job, were very careful to keep the work areas as clean as possible, and were extremely professional. They were very good at keeping me informed of how the job was progressing, and completed it on time. They're also a pleasure to have around--just really nice people. And to top it off, the price was very reasonable! Great job! read more

Wow! Just off the phone with David who helped me diagnose and fix a problem over the phone free of charge. It was relatively simple, but another electrician I talked to this morning quoted $250 for coming out for a diagnostic and fix. David insisted on not charging for the time, but I plan to send him a check anyway. read more

Absolutely amazing! It's rare when a service professional blows my mind with their professional, humble, expert, well priced skills. David came to my house of Friday at 6PM and installed some dimmer switches till about 8PM. He was basically booked, but squeezed me in cause I have a new baby and needed help. His price was half of what one of his competitors quoted. Really really awesome, will definitely use David in the future and recommend him to my friends/colleagues. read more

I called Tinpa Electrical with an urgent request to install a 220V outlet. I was in a jam because a new appliance had to be installed that day, but we discovered the missing outlet at the last minute. David listened to our problem over the phone and offered to come out in the late evening to help us out. He didn't even start the job until almost 6pm. Kudos for the flex hours. Very friendly, knowledgeable, and cleaned up really well. He even helped me move the old oven out to the curb. Very satisfied and will be a repeat customer. read more

David and Helen were professional, friendly, and proficient. They also did the job for a very reasonable price. I would recommend them to anyone who is looking to get electrical work done in the bay area. read more

David is a very professional electrician. Some parts of my house were out of power earlier this winter. I called David and he came with Helen to help me in a very short time. In five minutes he figured out that it was a circuit breaker related issue. After spending a lot of time finding out the well-hidden breaker (there are two separate breaks in my house: one is in the garage, and the other one is behind a wall installed closet...), David also helped me test out each outlet that is connected to that breaker, and suggested me not to connect high power electrical equipments with those outlets since it is hard to reach the hidden breaker if it turns off again. I felt so lucky to have David as my electrician. I would definitely call him again if I have any future issues! read more

I have to concur with the other reviewers that David was prompt, knowledgeable, patient, and very professional. He did a great job with 3 small outlet repairs for me and I am very happy with the whole experience. I'd hire him again and would recommend him to others as well. read more

I worked with David and his wife a few times now and can highly, highly recommend them. Very cost efficient and top quality work.

David fixed our kitchen lights--reliable, fast, inexpensive..great experience!!

Man have I been on a winning streak lately. Tinpa Electrical rounds out my finding good quality help. Honesty and integrity, follow up and suggestions... it was all there. We did a LOT of electrical work. moving outlets, setting new lights, upgrading the whole works. I just can't say enough about them, They just flat out care about quality workmanship. read more

I selected David after reading the Yelp reviews. All the reviews were right on...he does great work and is extremely trustworthy. Not only that, but I had quite a small job and other electricians were not even interested in doing the work. David stopped by on this way to one of his larger jobs and took care of my electrical issue. I felt very lucky that I selected the right electrician..! read more

Absolutely professional! Needed new wiring for my microwave oven from the panel in the garage to the kitchen. David came up with an easy solution, drafted the drawing for the permit in no time and finished the work within the time frame estimated. He also found a safety issue with my heater and fixed it on the spot. I am very grateful to have found his service and plan to use it in the future. read more

I had a few electrical problems around the house and finally decided to call an electrician. Looked on Yelp and decided to use Tinpa Electrical based on the reviews. Wow, I was so impressed. I called early Saturday morning and David was able to work me in that afternoon. David and Casey (David's intern) arrived at the house were friendly, listened to the issues and fixed the items promptly. I trust them. I also appreciate a company owner that will take time to train others. I watched how David let Casey do the work and guided him through the areas where Casey had questions. That is a good teacher. The prices were very reasonable. Thanks David and Casey - really nice job. read more

Weiguo (David) and KC are two of the finest workmen I've met and I spent over 30 years in the Navy, so I know good, hard work and talent when I see it. We had our 1916 Craftsman rewired. Their work is flawless. Their pricing is fair. They pay attention to detail. They are patient. They strove mightily to meet the schedule, and they did. You may have to wait a bit to get on their calendar, but the wait will be worth it. If you want top-notch talent and workmanship, hire Weiguo and KC. read more

Well, I can only add to all the five star reviews which are so deserved. Okay, so Home Depot removed my old electric range and left the new range in the middle of my living room at the weekend, saying I needed to get an electrician to put in a new/updated outlet in the kitchen before they could install the range. Ahhh! David totally came to my rescue. Not only did he call me back within the hour but he was available the same day. Lucky me, he had a cancellation! He took out the old outlet and wires (that were all over the kitchen floor) and put in a new range outlet, not jutting out like before but actually in the wall with everything intact - so I could have my new range in the kitchen hurrayyyy - plus he bought and installed the required circuit breaker for the range, installed two new ceiling light fixtures, and fixed a light issue in another room. David is not only a top notch electrician but a great person. And at an affordable rate too! I am more than happy to give Tinpa Electrical my highest recommendation. I actually had David do some electrical work for me back in 2010 and then as now he's knowledgeable meticulous, honest, and does fantastic work. Thank you David! read more

David and Helen are the best we've come across. We recently moved into a house in Berkeley and were told by all other electricians (we got estimates from 4!) that to get a new outlet into one of the rooms would be next to impossible due to the construction of that particular room. David said, everything is possible, it just depends on "how." He was able to not only do the job, but took on the entire rewiring of the house so quickly and beautifully, that we were dumbstruck. David and Helen are reliable, courteous, modest and hardworking beyond the call of duty. Although David is a licensed electrician and knows the Berkeley labyrinth of laws intimately, if you ask, you will find out that he used to work as a general contractor as well, and thus understands the structure of houses from start to finish - a huge plus in that business. He reads up on everything and knows his job better than anyone I've seen. He also charges the most reasonable prices of all the ones we tried. In short, David and Helen are the correct choice! read more

I called David again because I wanted to update all my old pull-cord closet lighting fixtures. He spent a lot of time with me on the phone as well as emailing back and forth about the type of fixtures to get. Unfortunately I listened to the Home Depot people and instead purchased the wrong type of fixtures. So when David and his helper arrived and took a look at all I had purchased, he said none of it could be used. He offered to go with me to purchase the proper fixtures, but I decided that the cost for the installation for hidden wiring, plus the extreme inconvenience of then hiring a drywall contractor to repair what was cut away, or having the ugly exposed wiring, which would meet code, was just more than I wanted to spend and that I'd just live with the very outdated lighting. David and his helper left and was very gracious in not even charging for his time and the trip. What an honorable man! read more