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Every Detail
Matters.

Your home’s your castle — not because it’s just good enough, but because it’s yours. You notice the little things: the porch light that finally quit, the hinge that complains every time someone sneaks a midnight snack.
You’re not chasing a quick fix. You want things done right.
And that’s space that I live in too.
Anyone can tighten a fitting or swap a valve, but real craftsmanship — the kind where every joint is clean, every cut is deliberate, a renovation that looks like it was meant to be there — that’s rare.
That’s the difference a true Flagstaff plumbing professional brings.
Quiet confidence. Rock-solid work. The kind of quality you feel every time you admire the small details that make the difference.

Photo of Marty Mortensen
Invite a Professional Plumber to your door. Expert Plumbing Repair Service for homes in Flagstaff, AZ

Discover

what makes us different

Upfront Pricing

Upfront Pricing

Surprises can be fun, but not a surprise bill. That is why you can always expect a firm price before the work begins. No more watching the clock as a plumber leaves to find parts (and maybe get lunch). Now you can kick up your feet and relax, because you know the price will not change.

Unmatched Quality

Unmatched Quality

Homeowners know the benefits of a professional who can diagnose and explain the real cause of a problem and how it can be prevented. Not only can we do that but we can also protect your home from future problems, keeping your family safe and making sure nothing you have paid for is going to waste.

Written Warrnaty

Written Warranties

Everyone sees the value of having a Professional Plumber stand with you in the case that you might need help in the future. If it is time for a visit then you know that we are just a phone call (or a mouse click) away.

Meet your
Plumber

Marty likes to joke that he was born with a wrench in one hand and a hammer in the other, and anyone who knows him would probably nod along. He grew up in Tempe, Arizona, on a piece of land that once belonged to his great-grandfather — a place where fixing things wasn’t a hobby, it was the rhythm of life. His dad and extended family built and plumbed homes in the area, and Marty was the kid tagging along, holding tools, soaking up everything.

 

By the time he was eight, he’d somehow become the unofficial construction tour guide. His third-grade teacher actually brought the whole class to a home Marty was helping build near the school. There he was — all of 8 years old — explaining where the pipes went and how they connected, like it was the most natural thing in the world.

 

Life zigzags, though. After high school, Marty’s great-uncle — a cardiovascular surgeon — asked him to help with a home renovation. Marty was blown away by his skill and kindness. It lit a fire. Maybe medicine was his path. Maybe helping people was supposed to look like scrubs and stethoscopes.

Then came the moment that changed everything: Marty nearly passed out watching a doctor stitch a minor cut. Turns out, helping people was in his blood — he just couldn’t handle seeing any of theirs.

 

A short time later, Marty met Annette — a small-town Flagstaff girl with a beautiful smile and the kind of steadiness that makes life make sense. They fell in love, stayed put, and built a life here in the pines. Marty switched degrees, kept working with his hands, and realized that plumbing was exactly what he was built for all along.

In 2003, after working for a few local companies and learning every job, every crawlspace, every winter quirk of Flagstaff’s high-altitude plumbing, Marty earned his contractor’s license and started Mortensen Custom Plumbing.

And he’s never looked back.

Because for Marty, plumbing isn’t just pipes — it’s homes, it’s families, it’s the feeling of fixing something that matters. It’s the same spirit he learned on that old family farm in Tempe: do it right, stand behind your work, and treat people the way you’d treat your own.

Testimonials

Al Stone

My wife and I retired and moved to Flagstaff just over 10 years ago. During our first 5 or 6 years I hired quite a number of plumbing contractors to do various jobs around our house. In every case, the experiences were mediocre (at best). I eventually contacted Mortensen Plumbing and I have used them exclusively since then. The owner, Marty, is truly a consummate professional. He always arrives on time and appropriately dressed. He provides a complete list of repair and/or replacement options, up front, along with full transparency on pricing and a warranty on his work. Marty is also extremely tidy. Whenever he completes a job, he cleans up to the point where you would never know he was there! One more thing... he is one of the nicest people I've ever met. I recommend Mortensen plumbing to anyone who requires the best and prioritizes "peace of mind".

Contact Us

Whether you’ve got a simple question, want to chat with Marty about your home, are thinking about building your plumbing career in gorgeous Flagstaff, or know someone who’s struggling with a repair they can’t afford — shoot us a message. We read every one, and we’re always glad to help where we can.

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