ASAP Water Heater & Plumbing
Company Overview
ASAP Water Heater stands as a proficient plumbing service in the Bay Area offering top-notch water heater replacement and repair solutions. With over 15 years of experience in installation, repair, and service, we’ve successfully installed and replaced countless water heaters and tankless units, ensuring customer satisfaction with reliable hot water.
Our team consists of certified professionals trained by renowned brands such as Bradford White, AO Smith, Rheem, Whirlpool, Takagi, Noritz, Rinnai, and Navien, and we have worked alongside these brands for over ten years.
At ASAP Water Heater, we collaborate with you to identify your hot water needs and provide optimal solutions at the best prices.
Call us for standard residential and commercial 40g, 50g, 75g, and 100g tank water heater replacements (we recommend Bradford White).
We also handle standard residential and commercial tankless water heater installations (recommended brands: Takagi, Noritz, Rinnai, and Navien).
We provide repair and maintenance services for water heaters and tankless units.
We handle water heater replacements.
We offer water heater repairs.
We provide hot water heater repair services.
We excel in water heater installation and repair.
We perform tankless water heater installation and repair.
We manage instant hot water repairs.
ASAP Water Heater, founded by Keith Lee, is your go-to San Leandro water heater repair company with 15 years of experience in water heater repair and plumbing. Keith has extensive experience in Oakland, San Leandro, and the San Francisco Bay Area, with 12 years dedicated to plumbing in Oakland and the East Bay. He is one of the youngest but highly skilled plumbers in Oakland, backed by a team of dedicated and experienced plumbers. Our Oakland plumbing and water heater repair team at ASAP Plumbing & Water Heaters is committed to complete customer satisfaction and finding cost-effective solutions to maximize value for our clients. Ultimately, we uphold our promise of outstanding service with integrity, encouraging our clients to return to our San Leandro water heater repair company. We cannot succeed without your trust!
If you need water heater repair or tankless water heater installation in San Leandro, we are here to support you.
ASAP Water Heater and Plumbing is led by an owner with 15 years of experience in the water heater and plumbing industry. He holds a plumbing degree from Wyo Tech College and is trained and certified in Bradford White, Rheem, Takagi, Noritz, and Navien for both water heater and tankless water heater repair and service.
Business Services
- Bathtub installation
- Bathtub repair
- Faucet installation
- Faucet repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Shower installation
- Shower repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 7:00 AM - 6:00 PM |
Tue: | 7:00 AM - 6:00 PM |
Wed: | 7:00 AM - 6:00 PM |
Thu: | 7:00 AM - 6:00 PM |
Fri: | 7:00 AM - 6:00 PM |
Sat: | 7:00 AM - 6:00 PM |
Sun: | Closed |
Recommended Customer Reviews

Our hot water stopped working and we have a tankless Navien water heater. Navien's website had ASAP as a certified service tech, among others, but Keith was the only one that answered when I called on a Friday evening. I was able to get an appointment on Saturday afternoon. My
MIL met him Saturday and said he was great - very nice and knew exactly what he was doing. Keith found that birds had been trapped and died in the vent and apparently were blocking the hot water. He was able to fix the problem and clean everything out in around 30 mins. And I got a receipt texted/emailed to me. Would definitely work with ASAP again! Thank you!!

Very good! I'm very satisfied with the work. Keith is very knowledgeable with fast determination on my tankless water heater. The price is very competitive! Thanks very much Keith! Good job!

We are entirely satisfied with Mr. Keith Lee's service, communication, response time and demeanor on the job. He will come to the residence and inspect the job before it happens to quote and he remains faithful to the quote. I called on day 1 and he was able to come to my residence at a mutually agreed time. He took 30 minutes to inspect the job requirement of installing a Navien Tankless Water Heater, our first jump to tankless where our old leaking tank water heater was installed noting the water intake, gas intake and venting spaces. On day 2 he and his assistant installed the unit. They were methodical, professional and did not rush the job. The cleanup was as professional with removal of the old tank. He offered a post flushing service once every year or two for a reasonable maintenance cost. I would recommend ASAP Water Heater & Plumbing to anyone in need of a professional, honest installation. I will be calling Mr. Lee in the future for all of our home needs. He was a great find and Yelp was instrumental on our choice of vendor.

Keith is very knowledgeable, he fixed the problem and he make sure that the water heater is working before leaving the job.

Finally! Someone who knows what they're doing and takes the time to educate/explain, that is, if you're like me and would like to know what's going on. We had a horrible experience with a different company who installed our Navien tankless water heater. I didn't even know things were still not right until we had Keith come for a service/cleaning of our unit. He was able to see that a few things were not set up quite right on the dashboard and physically...he fixed it. Now one bathtub finally gets full hot water that never did. We've been suffering for 3 years! He is really kind, smart, professional and clearly an expert on Navien systems. He took the time to check a few extra things out for me, about flow as well. Bonus, Keith is super responsive to his phone calls and good about keeping his schedule or keeping you posted. I really appreciate his service style. Highly recommend. Cheers.

This company lives up to its name.
When you have a broken water heater over a holiday weekend, calling someone to come out immediately is impossible. Enter ASAP, who was able to come out the next afternoon and install a new one for cheaper than the businesses that we called that were not available to come out for the next few days.
The water is hot again and if anything changes (they came out on Monday and it's now Friday), I will update this review.

Keith installed my water heater two years ago! Delighted with the quick response and incredibly efficient tankless water heater so far. Today, very happy he fit me in when I called to say my water heater was completely turned off. He was able to quickly reset it in less than one minute by pushing the reset button on the outlet. I thought I had pushed it this morning, but he showed me that I hadn't pushed it hard enough and that I can confirm it's reset when the green light on the outlet is lit. If your water heater stops working, especially in the torrential rains we've been having, use a screwdriver to firmly push the reset button on the outlet so you can save the $50 service call if Keith comes to do it.

We've used this company three different times all emergency calls and they showed up on time and got the job done! No need for a long review cause they got the job done!!!

Keith just fixed my hot water leaking issue in the crawl space! I called him yesterday and he was able to come the next day to give me an estimate. He was nice enough to also call me several hours before our appointment to let me know he was running late from another job. He arrived with another person (Peter) and went under the crawl space and was able to determine the leak was from a pipe in the crawl space (versus in the wall) and gave me an estimate right away. I think the estimate was reasonable given the kind of work. I authorized him to go ahead with the work and he immediately went ahead to fix the issue quickly and professionally and also explained to me very clearly the cause of the issue.

We called Keith to flush out our tankless water heater, since we noticed some inefficiency with hot water throughout the house. He surpassed our expectations. We noticed an immediate difference afterward: the hot water is reaching various parts out house more quickly. Keith went beyond the scope of the job, explaining other things in response to some questions we had about some vibration in our shower head. He showed up promptly for the appointment (even a bit early, which was great) and left with everything addressed. Excellent business; we'll be calling him again for future plumbing issues.