Best Plumbers In Oceanside

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“Always a great experience with Mike and his team! Last month assisted with my clogged sewer line and cleared it. Today, quick response on a leaking toilet from a blow, and they started with repair first, which worked. Unlike some plumbers trying to oversell you, Mike and his team are the Real Deal and do great work at great prices- I put my trust in them and you can too!“

“We’ve been happy customers for over two years and we only wish we had discovered them sooner. The previous company had misdiagnosed an issue that led to numerous costly breakdowns and repairs. We had heard good things about Proactive Home Services so we gave them a try and they were able to fix the problem (this time for good!) at an extremely reasonable rate. Because they were so friendly, professional, and affordable, we signed up for their maintenance program. Twice a year an extremely knowledgeable serviceman (big shout out to Ted!) will come run a diagnostics on our system. Even though we’ve come to know him, Proactive still sends us a picture of him before the appointment. We very much appreciate that level of safety. We haven’t had a single issue with our system in those two years, which is a huge departure of the previous few years. That being said, even though everything runs perfectly, we keep the maintenance checkup service because it’s so reasonably priced and provides a level of security knowing that any future issues will be resolved. We can’t say enough nice things about this company. They are always extremely responsive, setting up appointments is easy, and they are *GASP* always on time. They even confirm when they are near via text. We see them once in the fall, and once in the spring, and never in between because our system just works!“

“I don’t write a lot of reviews, but OSI absolutely deserves one.

I recently had an issue with my boiler and reached out to OSI. From the moment they arrived, I could tell I was dealing with a company that genuinely cares about its customers. The team was professional, respectful, knowledgeable, and took the time to explain exactly what was going on and what needed to be done.

What impressed me most was how thorough they were. They didn’t just fix the problem and leave—they made sure everything was working properly, answered all of my questions, and left the area cleaner than they found it.

In a world where it’s hard to find contractors you can truly trust, OSI stands out. Their attention to detail, responsiveness, and quality of work were outstanding. It’s clear that the company has built a great team and takes pride in doing things the right way.

If you need boiler, heating, or HVAC work done, I highly recommend OSI. Great people, great service, and a company that genuinely puts its customers first.“