Around the Clock Service
Company Overview
Heating, air conditioning, and plumbing crises seem to pop up during unusual hours. With Around the Clock Service, Inc., we are here for you at any hour. Based in Sunnyvale, California, we've been servicing heating, plumbing, and air conditioning systems for over five decades to homeowners and businesses. Our technicians make it a point to detail the issue at hand and the steps needed to fix it. Our goal is to be transparent so you are aware the costs involved. Additionally, we are available every hour of the day for all emergency situations.
Our company was founded in 1968 and continues to serve the residents of Santa Clara County with plumbing, heating, and air conditioning services. We offer full sales and service for all major brands.
I have been working in plumbing and heating for more than 25 years. I started as an employee and eventually became the sole owner. I guarantee that you will receive honesty, integrity, and outstanding service.
Business Services
- Air duct cleaning
- HVAC system repair
- Plumbing inspection
Business Location & Hours
Mon: | Open 24 hours |
Tue: | Open 24 hours |
Wed: | Open 24 hours |
Thu: | Open 24 hours |
Fri: | Open 24 hours |
Sat: | Open 24 hours |
Sun: | Open 24 hours |
Recommended Customer Reviews

Since my first experience with ATC, they have been our go-to source for fixing leaks, replacing toilets, and even a rather extensive backyard project involving permitted water and natural gas extensions. Always stood by their work, issues if any are resolved. Worked very well with city inspectors. Not the cheapest, but definitely not the most expensive either. A happy long-term customer.

We have used ATC many times over the years and have always had outstanding service. Highly recommended.

ATC gave us a bid to replace our water heater, install a new kitchen faucet and fix a toilet leak. They showed up a couple hours late They installed the new water heater and got half way through the kitchen faucet, leaving us with a leaky fitting, and then left. They said they would get back to us later about finishing the job. They said the office would contact us. No word back, ever. The sales guy is very charming, but their work was really poor. Never again!!!

Pathetic service and attitude. Their plumber didn't fix the problem and instead charged me for full one hour. I have clarified before calling him that I won't pay for inspection, to which he had boasted that when they come they fix the problem.
I won't recommend them.

I've tried using ATC a couple times now. The first time was to try to find the source of a leak in my ceiling from the bathroom. They weren't able to find the leak, charged me for a whole hour and left a rebate form for toilet upgrades. I ended up finding the leak later and fixing it myself.
The second time I tried using them was to install new toilets using the rebate program they told me about. They gave me a 2 hr window, but almost didn't make it. I had to call the office to confirm that someone was still coming, and that's when they sent three people to try to arrive within the last minutes of the window. Two of the three people arrived, and they discovered that I had chosen the wrong sized toilets. I was lucky that they caught it before they started the work, but they charged me two half hours for the plumbers to arrive and leave. They agreed to reschedule for the following week, which is when I promptly stopped hearing from them.
After waiting at least one business day, I called them to confirm my rescheduled time. They were closed (so much for ""Around The Clock Services"") and asked me to call the next day. So the next day, I called, and they said yes it was in fact scheduled -- but no one had given me a window for when they would show up.
Finally on the rescheduled day, a single plumber arrived. He arrived roughly on time, and finished the job in a little over an hour. He cleaned up, went outside for over half an hour and then charged me for two hours of work.
Overall while they are knowledgeable, the quality of their work is average and their customer service is lousy. If you decide to use them, expect to pay for twice the time they provide; and be prepared to do most of the communication yourself for confirming apppintments, window times, and arrivals.

ATC installed copper water pipe in our house and put in new air duct piping for our heating system. They did excellent work and protected our home well while performing the job under the house. The installers were professional and friendly at all times. We love the completed job!

Quick, efficient, charged less than quoted (probable because it was easier than expected). Showed up in 20 minutes on a Saturday.

This is a great plumbing shop and I highly recommend them. Honest, pleasant, reasonable prices, and excellent work. It's hard to find those qualities in a plumber these days.

I've had my heating and air conditining replased by ATC 8 years ago. This is the first year I've had a problem. ( the unit was just dirty ) They always arrive when they say they will. They explain every detail. They have excellent staff. I will always call Around The Clock for my air and heating. I love this company!
Debbie O.

A guy from ATC (Frank) installed a valve that blocks the water to my
backyard irrigation, but did not reconnect the pipe on one end. ""My
drawer with the couplings I need is stuck,"" he said. Charged for a
full valve installation, said he'd come back to finish, and never did.
I finished the job myself and realized why he bailed out: the original
piping is poorly planned and makes maintenance very hard. I
would have preferred a straight ""We need to redo this part of the
piping, and it'll cost this much..."" to the behavior of a crook.