Well, after reading all the other reviews, I guess I'm not the only one whom he swindled. I gave him a deposit of $2400 (50%) for job on April 30th, 2016 for 2 patio covers... well today is Sept 25th... still no patio coverings. His lack of communication is staggering. On the day (in July) he was supposed to show up (his third chance), I swung by his office on Chester and there was a guy "cleaning it out". I threatened to turn him in to the BBB and Contract Lic. Board, then he text back. Stories of illness, death in the family, workers quiting only go so far. If it's that bad, retire. But, there are stories here of him taking even more money from people even after all this... Please beware, If you are reading this, you have already read many more to get here... Don't do it, Stop. Yoiu will not get what you want, you will get nothing but headache. He actually just text me with another "next week" excuse... read more

We hired Jack about 5 years ago and he seemed like a nice and honest man. Nope! We had concrete and an awning done. The concrete is seriously not level. He didn't give us a permit and his workers were creepy guys who smoked on the job, left cigarette stubs on our grass and asked us for things inside of our home. When we tried to contact him he refused all of our calls for a year before we gave up. STAY AWAY! He is seriously unprofessional and inappropriate with women. Go literally anywhere else!! read more

My husband & I decided to use Jack Duncan to install an Alumawood patio cover. Initially, we went with him because we saw his website & after meeting him we liked his design idea & the fact that he boasted about being in business for 30 years with tons of experience & happy customers. (We weren't able to find any reviews about him at the time, so I'm hoping this will be helpful to someone). I would NOT recommend him or use him ever again! He was very unprofessional, hard to communicate with, pushy & more focused on himself than us as the customer. He pressured us to sign the completion paperwork 3 days before the job was even done! And kept telling us how much money he had out in materials & how long it would take for him to get paid, (our job was financed though the HERO program). He even argued & tried to make us feel bad for not signing. Also, during construction, his builder left a huge 8 inch gap between the pieces that were supposed to overlap to create a covered patio. When we saw this & realized they intended to leave it that way we were very upset & they just continued working saying they built it the way it was designed. Jack eventually said they would fix it but we really had to push him to make it right. Also, the job took longer than he said & then took even longer because they ordered the wrong piece & had to wait for the correct one. And, once the job was completed, they left all the electrical coverings off for the electrical inspection & said they would come back on the same day the electrical inspection was done to button everything back up. But they never came until 2 weeks after the inspection! They also put the rain gutter in the dead center if our patio & instead of the water draining onto the grass, it dumps out onto our concrete & pools up creating a huge mess. Also, Jack said he would provide the Alumawood patio hooks for us & then never did. We contacted him about it for over one month & never got them. Jack Duncan is a liar. We are happy to have a completed patio cover for the summer, but wish we would have used someone more professional & honest who wouldn't have been so stressful to deal with. Beware! read more

I signed an agreement for a concrete slab and Alumawood patio cover in Sep 2015 for a new home in Bakersfield. The design is beautiful, but unfortunately the project is still awaiting final inspection due to an on going problem with the electrical (not with the city inspector). My contract states the last payment is due at final inspection, but that is to make sure all city codes are met, not that all work is done. Jack is nice, however this is a business relationship, and in my opinion, the follow-through is lacking. In my opinion (again) - go with a different contractor. ...and make sure everything is noted in the contract, including estimated completion time. I might also suggest that the last payment is due at completion of ALL work, not due at final inspection. read more

I won't recommend anyone jack Duncan he is POS and liar, give him deposit to build my patio almost 2 months and he haven't build my patio yet each time I call him he have excuse and keep telling me next week past two months, very bad service read more

I hired Jack Duncan to install a 10x24 covered aluminum patio for my backyard on May 4th, 2016. The estimated completion of work was 3 weeks after payment was made. It has been 3 months now and there is still no patio installed on the premises nor any permits pulled to even start the job. Mr. Duncan has been evasive and really hard to get a hold of and always full of excuses of why he is so behind. He convinced me to give him 50% of the total as down payment ($2,500 paid by check) which he cashed immediately the same day. The total amount was for $5,000 which was to include $1,500 of concrete work and $3,500 for the Patio including materials and labor. The concrete contractor showed up but stated he would not do business with Jack since he owed him already a lot of money, so he would only do the concrete if I paid him directly. I ended up paying him and additional $2,380 for the concrete work since the estimate given by Mr. Duncan was well below the actual cost. It seems that Mr. Duncan is going around town taking people's money and not doing the work. His website: http://jack-duncan.com/ recently was shut down and is now for sale and several angry customers have recently gone online here on Yelp to post negative feedback on this crook. If you are in a similar situation, please submit an online complaint with the contractor's state license board now! Don't wait any longer. https://www2.cslb.ca.gov/OnlineServices/ConstructionComplaint/BeforeFilingComplaint.asp I've since hired a reputable company to complete my patio and feel confident it will get done this time. He actually knew other people that have also been recently taken by Jack Duncan and noted that some have been waiting for 6 months for him to start work! If you're looking for an honest contractor that won't run with your money, please stay away from Mr. Duncan. read more

I signed a contract for a patio cover with Jack on 4-9-16. My check for the deposit was cashed immediately, however Jack has never started the patio cover, and refuses to return my deposit. It has now been 5 months, and I have a small claims court case pending against Jack. It has been an extremely frustrating situation. I have also filed a complaint with the State Contractor's License board and it is currently being investigated. I would suggest to anyone who is considering Jack Duncan Construction to seek out a different, reputable company instead. read more

I'm so done with this guy , I payed 2500 for a patio. He came over and looked at my yard and quoted me. He took the deposit after signing a contract and he never called me back for 2 months! Than he called me and told me next week after next week. It was so pathetic . Also while he was at my house he kept looking at my wife and hitting on her to the point she told me she was uncomfortable. DO NOT USE HIM, NOT A GOOD MAN TO WORK WITH. FTP read more

My Husband and I signed a contract with him back in the fall for my father-in-law. We gave him money in Nov. 2015 to draw up plans. The job should have been completed in March per the contract and we are now almost at the end of June. The job is not complete and all the money we have paid him has gone to other jobs. Jack stressed communication is key but can't communicate with us. He is a thief and a lair. We have two children under the age of 10 and they can't use our back yard because they leave it a mess. Also this job is being done on a Veteran's home. DO NOT use Jack. One of his main workers we truly enjoy working with and should go out on his own, the other main worker is just like Jack. read more