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We have more than 17 years of experience

CA LIC # 1016766

A Simi Valley Plumbing Company Serving Ventura County

A Simi Valley Plumbing Company Serving Ventura County

Welcome to Highsmith & Daughters Plumbing Inc

COVID-19 Lockdown Update

We are an essential business and open with our normal operating hours and 24/7 emergency service. Our licensed plumbers show up to all service calls equipped with protective face masks and will wear one upon your request before entering your home. 

We are a licensed Simi Valley plumbing company, and we service all cities in and around the Conejo Valley. We provide both residential & commercial service and repair.

Our promise to you is that we will provide a fair and accurate price for your job, and complete it professionally and on time. Our team of plumbers will always be courteous and make sure the job area is left clean after completion.

We provide 24-7 emergency services for those times when a serious plumbing issue occurs when you least expect it.


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Our Projects

Recent projects we’ve completed

Shown here is just a small sampling of just some of the recent projects that we’ve successfully completed. Feel free to ask for references so you can validate our craftsmanship.
What We Do & Why To Choose Us:

Conejo Valley’s Most Reliable Plumbing Service

  • Affordable & Reliable Service
  • Friendly & Respectful Technicians
  • Top Rated Company on Yelp
  • 24 hour Emergency Service Available

New Gas Line Install

Gas line replacement in Thousand Oaks

Laundry Box Install

Recessed laundry box installation in Simi Valley

Toilet Repair

Fixed improprely installed toilet by a previous contractor in Camarillo

Bathtub Install

Removed rotted tub and made new drain connections for a customer in Simi Valley

Yelp Reviews

Amazing Work!

Jay was sent out to our home to fix a sink and a toilet. The sink had been “fixed” twice before with no luck from handymen my landlord sent out.

So I called Highsmith and was not disappointed. Came out when they said they would after a warning call. Always nice to get a heads up when you have dogs that you need to lock up.

Jay was straight up with me and I appreciated that. He also screwed my toilet seat back in for me

No more washing dishes in my backyard! Thank you!! I highly recommend this company and will be using them again myself.

– Jessica D. Simi Valley



Keeping in mind that there are a ton of fake reviews out there and dishonest service people, I was dreading the search for a legit plumber. Especially after being ripped off a couple months ago by a different local plumber. But I was really fortunate and lucky to find HDP.

Matt was able to come out fairly quickly and answer all of my questions regarding a leak we had at my parents home. He originally told me the job could take anywhere from 4-6 hours but he was done by 3, and even fixed an issue that the other plumber had failed to do. Matt was also able to give me an awesome referral to get the ceiling patched up.

Matt and his buddy were friendly, respectful-always putting on booties when walking into the house, and so efficient! I would highly recommend going to HDP for all your plumbing needs!

– Shirley H. Moorpark


Came out on a weekend emergency in a half hour

We have called on a Saturday and Sunday and Matt came out within a half hour both times.

I feel like he was reasonable even though it was off hours. He fixed both problems and gave us insight into what was going on (cameras showing the situation with our sewer).

I’ve called other plumbers, and none were as skilled and helpful. He was also really nice and not only fixed our problem but cleaned the sink and underneath, something I was dreading because it was sooooo awful. I highly recommend them!

– Melinda B. Thousand Oaks


Why Choose Us

My name is Matthew Highsmith and I’m the owner of Highsmith & Daughters Plumbing Inc. Below are the reasons why you should choose my team for your next plumbing job.


I’m lucky enough to love what I do and I make sure my crew does as well before I hire them. When you’re passionate about your trade, your work is top notch and speaks for itself.


We both know there are a lot of shady service companies out there. My promise is to always give you a fair price and complete the job in a clean and professional manner.


Plumbing is not just a trade you learn for a few years. I keep up to date by taking yearly classes about the newest and most efficient products for the plumbing trade. I, in turn, teach what I learned to my team so they become better plumbers as well.
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