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Diamond Bar, CA

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JASP Construction & Design

5.0 (1 review)
Closed • 8:00 am - 6:00 pm

Services - JASP Construction & Design

Balcony addition

Construction design services

Deck construction

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4 years ago

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KP Plumbing & Leak Detection Specialists - New hose bib for the back

KP Plumbing & Leak Detection Specialists

(177 reviews)

Kevin at KP Plumbing is honestly one of the best I've ever worked with…read more He's incredibly talented at what he does, but what really stands out is how much he genuinely cares about his work. You can tell he's passionate about doing things the right way instead of just getting the job done as quickly as possible. He made me feel comfortable from the get go. He was always respectful, patient, and took the time to explain everything so I actually understood what was going on. I never felt rushed or talked down to, which I really appreciated. I also noticed he uses high quality materials instead of the cheapest parts. We talked about how important longevity is, and it was obvious he cares about fixing things the right way so they last. That kind of attention to detail builds so much trust, and that's hard to find these days. On top of all that, Kevin is just a genuinely great person. He's easy to talk to, has a great attitude, and somehow makes a stressful plumbing problem feel a lot less stressful. I actually enjoyed chatting with him while he worked. If you're looking for a plumber who's honest, knowledgeable, takes pride in his work, and truly cares about his customers, I can't recommend Kevin enough. I'll definitely be calling him again for any future plumbing needs.

Dependable, Knowledgeable, and very fair prices. Kevin is awesome! He responds promptly and gets…read morethe job done well. Plus he's just a great guy. I highly recommend him for any plumbing needs.

All City Plumbing, Air & Electrical - All City Plumbing, Air & Electrical

All City Plumbing, Air & Electrical

(4.9k reviews)

I had a great experience with All City Plumbing & Air, especially with Johnny, the technician who…read morecame to my home. Johnny was very kind, patient, and professional. He took the time to carefully look around and figure out what was causing the problem instead of rushing through the job. I had contacted other companies before, but it was sometimes difficult to understand their explanations, and I didn't feel like I was getting clear answers. Johnny was completely different. He explained everything clearly and patiently, making sure I understood what the problem was and what my options were. I also really appreciated that he explained the cost upfront and let me know about things I wasn't aware of before starting the work. There were no surprises, and I felt comfortable knowing exactly what was being done and how much it would cost. Johnny was not only knowledgeable and professional, but also very kind and easy to talk to. He answered all of my questions and made sure I understood everything. I'm very thankful for his help and the way he treated me with kindness and respect. I would definitely recommend Johnny and All City Plumbing & Air to anyone who needs plumbing or air conditioning service. Thank you, Johnny, for your excellent service and for taking the time to help me understand everything!

I highly recommend Gabe Smith and All City Plumbing. Gabe is extremely knowledgeable, highly…read moreattentive to detail, and delivers outstanding quality work. From the start, he took the time to explain his entire process in detail so I could easily understand exactly what he was going to do. We hired him for a significant amount of work, and he handled all of it flawlessly. He replaced our kitchen sink, garbage disposal, and the angle stops around our bathrooms. He also installed a brand-new water heater, a Flow Tech anti-scale system, and a thermal expansion tank. Additionally, he replaced the main faucet and pipes connecting our house to the city water supply and successfully fixed our home's water pressure, which had been running dangerously high. What truly sets Gabe apart is his customer service. He is incredibly friendly, attentive, and kept in constant contact throughout the entire project. He is completely transparent and never acts like a pushy salesman; he simply assesses the issue, states the exact cost to fix it, and gives you the space to make up your own mind without any pressure. I would absolutely hire Gabe Smith and All City Plumbing again.

SoCal Plumbing & Rooter - Replaced broken tank water heater with new Navien tankless water heater

SoCal Plumbing & Rooter

(341 reviews)

SoCal Plumbing was exceptional! They are my plumbers for life…read more I had a leak in my house and found SoCal Plumbing. I had also contacted other plumbers for estimates, but Mikey, from Socal Plumbing really stood out. He was incredibly patient, answered all of my questions, and continued to be responsive when I had additional questions--even when I was getting another estimate from a reconstruction team there. He never made me feel rushed and took the time to explain everything and answer my questions. That level of patience and customer service really stood out to me. When they first came out in August, they replaced our angle stops because the old ones could not be turned off properly. The work was noticeably better than the angle-stop work for the emergency toilet leak done by the plumbers from my insurance company's emergency response. I attached a picture of the angle stops SoCal and the toilet angle stop installed so you can see the difference. Because the abatement, mitigation, and reconstruction and HOA took some time, there was a delay before we were able to have SoCal return to complete the plumbing for our new vanity and toilets upstairs and downstairs. Our upstairs toilet had been leaking, and since Delta no longer makes the same model, we decided to replace both toilets so we wouldn't have to worry about another leak downstairs. SoCal recommended Toto toilets, and after sitting on them, I completely agree--the flush is definitely powerful and are definitely the most comfortable toilets we've had! The vanity was definitely the more challenging part. We went from an open double-sink vanity to a new vanity with two sinks and two faucets, which required reconfiguring the drain, giving each sink its own P-trap, and relocating the existing hot and cold water lines to connect to the sinks. They also needed to open the drywall to access the plumbing. They completed all of this in one day and were even able to accommodate us by coming one day earlier than scheduled. That's SoCal Plumbing! My plumber was Mikey, and he was excellent. Joseph, the manager at SoCal Plumbing, was also exceptional. From communication and scheduling to accommodations and recommendations, they were there every step of the way--even when our project was delayed because of the reconstruction. They are reasonably priced, but what stands out most is their legendary customer service. They communicated well, worked with our complicated reconstruction timeline, and made sure the plumbing was done properly. I would absolutely recommend SoCal Plumbing to anyone who needs a plumber.

Miguel was a god send He was courteous and honest…read more He fixed my disposal and did not charge anything!!! I am now a loyal customer Thank you Miguel

Jerry's Plumbing & HVAC - Installation of CNC water jet system -commercial building

Jerry's Plumbing & HVAC

(103 reviews)

Miles @ Jerry's Plumbing took care of me with replacing our faulty pressure reducing valve and…read moreinstalling a water softener and whole home water filter. He was extremely honest and professional, keeping me informed every step of the way during the install and making sure that I approved things such as placement of the water filter/softener system, how I wanted the lines ran, and even went above and beyond to tie the drain into my house's sewage system so that it looked as clean as possible. Most other plumbers I called wanted to run the drain for the system across the entire garage to tie into my laundry drain, but Miles took one look and said he could do one better than that. For our pressure reducing valve, the original one was soldered on without any way to replace it except by cutting the copper piping on both ends. Before installing the new replacement valve, Miles made sure to install unions on both ends of the pipe so that in the future, if I ever needed to replace it again, I could easily do it myself without having to call a plumber. Out of all the plumbers I contacted for estimates, Jerry's plumbing was the most honest company, providing the best pricing, while offering (in my opinion) the cleanest workmanship. Overall I'm am extremely happy and will definitely call them again for any future plumbing needs.

I just had my shower valve replaced and Jerry's plumbing was fantastic from start to finish…read more They were great with giving me a quote over Yelp immediately and I was able to have someone scheduled the next day to install. Juan came out on time and finished the job professionally and was meticulous about putting plastic wrap around the bathroom to make sure it doesn't get dirty. He also cleaned up afterwards which was really nice. Friendly and fast service and would definitely hire again. Their pricing is very competitive and I would say better than others in the area and are upfront about cost and don't upsell. They were fast, reliable and responsive which is hard to find these days.

Alpine Plumbing Heating And Air

Alpine Plumbing Heating And Air

(1k reviews)

I had a great experience with Alpine Plumbing. From the beginning, their communication was…read moreexcellent. It was easy to schedule a consultation, and I received an estimate within 24 hours. What I appreciated most was that they were honest, fair, and never pushy. They gave me their recommendations and pricing, but also made it clear that if I wanted to wait on something I had asked about, that was completely fine. There was no pressure to move forward just for the sake of making a sale. Honesty and communication are two of the things I value most when working with a contractor, and Alpine Plumbing delivered on both. I really appreciated their professionalism and straightforward approach and would definitely recommend them.

Hired Alpine Plumbing for two jobs. First, stop a water leak under the kitchen sink and remove the…read moreunused water filter. Second, replace the old waterline leading to the water dispenser with a new one. The plumber stopped the leak but left the old filter and waterline in place, contrary to what the invoice stated. He said he would check with the company about replacing the waterline. The company then proposed installing a reverse osmosis system for $1800, even though I had clearly stated I did not need a new filtration system, only a simple replacement waterline, since the dispenser already has its own filter. It took over two days to get a response, and only after I followed up twice. On the second day I hired another plumber who completed the waterline replacement for a fraction of the cost.

JASP Construction & Design - contractors - Updated October 2026

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