Mortensen Custom Plumbing — Flagstaff, AZ
Business Overview
Mortensen Custom Plumbing Flagstaff AZ is a licensed plumbing business serving homeowners in the mountain communities around Flagstaff. Founded in 2003, the company operates with a small team of licensed plumbers and apprentices who focus mainly on residential work and light commercial projects. They offer scheduled appointments and an on-call option for plumbing emergencies when pipes burst or gas concerns arise.
Key Services
The team provides clear, fixed pricing before work starts and backs many jobs with written warranties. Main services include:
- Gas line installation and gas line repair — safe, code-compliant work for homes and small businesses.
- Plumbing inspection and electronic leak detection — pinpoint leaks under slabs and behind walls.
- Plumbing installation or replacement — water heaters, pumps, fixtures, and appliance connections.
- Plumbing repair — clogged drains, toilets, sinks, showers, and garbage disposals.
- Sewer pipe replacement and pipe thawing — solutions for older systems and winter freeze issues.
Areas Served
Mortensen Custom Plumbing serves Flagstaff AZ and many nearby communities. Typical service area includes:
- Flagstaff, Kachina Village, Second Mesa, Fort Valley
- Mountain View Ranches, Bellemont, Parks
- Dilkon, Leupp, Shongopovi
Technicians are familiar with the range of housing in the region — from historic downtown homes to mountain cabins and newer subdivisions.
Company History
Mortensen Custom Plumbing Flagstaff AZ was started in 2003 by Marty Mortensen after he earned his Plumbing Contractors License. Marty grew up around construction on his family’s farm in Tempe and learned plumbing hands-on from an early age. He moved to Flagstaff with his wife, Annette, and built the business around clear pricing and cleaner job sites.
Over the years the company shifted from the usual hurried service model to a more customer-focused approach. Appointment windows, fixed estimates, and written warranties became standard. The business grew steadily while keeping a local, personal touch.
Leadership
Marty leads the company and remains active in field work and local outreach. He has decades of practical experience with residential systems and has taught homeowners about plumbing basics, once even guiding a school class through a jobsite as a child—an early hint at his knack for explaining how plumbing works.
The team stays current with local codes and seasonal needs, such as winter pipe protection at high elevation and monsoon-related drainage concerns.
Specialties & Highlights
- Fixed pricing and written warranties for predictable costs.
- Electronic leak detection to find hidden water damage quickly.
- Gas line expertise for safe installations and repairs.
- Experience with winter pipe thawing and sewer replacements in mountain conditions.
Why Locals Choose Mortensen Custom Plumbing
Residents of Flagstaff and neighboring towns pick Mortensen Custom Plumbing Flagstaff AZ for steady, practical service and a team that treats homes with care. The company’s long presence in the area, straightforward pricing, and focus on repair quality help homeowners manage plumbing problems without surprises.
For routine maintenance or emergency help, Mortensen Custom Plumbing works to get systems running again so families can return to their day. Contact them for inspections, repairs, or installations tailored to northern Arizona weather and home types.
Contact Information
Mortensen Custom Plumbing
: Flagstaff, AZ 86004
Business Services
- Gas line installation
- Gas line repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
Business Location & Hours
| Mon: | 9:00 AM - 5:00 PM |
| Tue: | 9:00 AM - 5:00 PM |
| Wed: | 9:00 AM - 5:00 PM |
| Thu: | 9:00 AM - 5:00 PM |
| Fri: | 9:00 AM - 5:00 PM |
| Sat: | Closed |
| Sun: | Closed |





