Your local branchHigh Desert Mechanical · Apache Junction, AZ1527 E 17th Ave, Apache Junction
High Desert Mechanical holds the National Board R stamp and does its own combustion, controls, mobile welding and source testing. Flagstaff plants get emergency service, scheduled maintenance and Thermogenics rental boilers from our Apache Junction team.
Flagstaff is part of our Apache Junction team’s service area, and we serve it directly for emergency calls. We book scheduled maintenance, tune-ups and inspection prep ahead so each visit fits your heating season and shutdown windows.
The crew that comes to Flagstaff handles code repairs, retubing, refractory, mobile welding, fabrication and burner work on Cleaver-Brooks, Fulton, Superior, Victory and other makes. When a plant needs temporary capacity, we bring in a rental boiler from the Thermogenics network.
Flagstaff is covered by our Apache Junction team
Flagstaff sits high on the Colorado Plateau, and its boiler rooms fire longer each year than most in Arizona. Heating loads run from fall well into spring, and the city’s hospitals and campus rely on steam and hot water for buildings and processes.
Campus central plants heat classrooms, labs and residence halls through snowy winters. We maintain central plant boilers, tune burners and check controls before the first cold snap.
Hospitals and clinics need steam for sterilization, humidification and heat without gaps. We service redundant boilers so one carries the load while another is down.
Medical products plants use steam and hot water for process heat and humidity control. We service burners, controls, feedwater systems and deaerators on these process boilers.
Hotels and lodges serving Grand Canyon visitors carry heavy hot water, laundry and space heating loads. We maintain and repair their boilers, including Lochinvar, Raypak and Bryan units.
Government and military heating plants depend on inspected, well-documented boilers. We offer maintenance, repairs and R stamp code repairs for this kind of plant.
Maintenance agreements on monthly, quarterly or annual plans. Visits cover burner tuning, combustion analysis, low-water cutoff and flame safeguard testing, steam trap surveys and cleaning. We also look at pumps, piping and controls around the boiler, and set the schedule around your heating season.
Maintenance from Apache JunctionTroubleshooting and repair on all makes. We handle burner and controls faults, tube leaks and retubing, refractory and castable insulation, pump repair and replacement, and piping repairs. As a National Board R stamp holder, we make code repairs and alterations to boilers and pressure vessels.
Repair servicesOur service trucks are stocked and ready to dispatch across Arizona, so common parts arrive with the technician. For critical spares, we work with plants to order burner components, flame safeguards, controls and pumps ahead of time so one failed part does not idle a boiler.
Parts & suppliesThermogenics Thermocoil rental boilers run from 150 HP to 500 HP, rated 250 psig MAWP and operating at 70–225 psig, on natural gas, propane or No. 2 oil. Larger units are available on request, and partner inventory adds more options.
Rental boilers & fleetBoilers in Arizona fall under the Arizona Boiler Rules, which the Industrial Commission of Arizona enforces through the ADOSH Boiler Safety Section. Since July 2017, certificate and in-service inspections are performed by authorized third-party inspection agencies, and power boilers require an annual internal certificate inspection. We open up and prepare boilers for the inspector, close them up afterward and make any repairs the inspection calls for.
At about 7,000 ft, Flagstaff has a long heating season that the desert cities to the south do not. Thinner air carries less oxygen per cubic foot, so burners need proper combustion setup and O2 checks at this elevation. Cold months also put freeze risk on condensate lines, feedwater and makeup water. Boilers that fire hard all winter should have tune-ups and inspections done before fall.
ICA Boiler Safety
Industrial Commission of Arizona – ADOSH Boiler Safety Section
Our team also covers Williams, Sedona, Winslow, Munds Park, Kachina Village, Doney Park and Camp Verde, along with the rest of northern Arizona as part of our statewide service area.
Visit hdmech.net
Call 480-292-6550 any time, and we confirm an arrival time on the call. Flagstaff is about 3 hours from our Apache Junction branch. Emergency calls go out in a stocked service truck.
Yes. Sedona is part of our statewide service area. Sites there get the same maintenance plans, repairs and emergency service as Flagstaff plants.
Power boilers need an annual internal certificate inspection under the Arizona Boiler Rules, carried out by an authorized third-party inspection agency. We prepare the boiler for the inspector and handle any repairs the inspection finds.
Yes. We service boilers, burners, feedwater systems and deaerators, and we plan work so one boiler carries the load while another is down. If you lose capacity, a Thermogenics rental boiler can be connected as temporary backup.
Yes. Tell us your load, pressure and fuel, and we will match a Thermocoil unit and plan delivery around site access and snow. Rental units commonly travel a day or two to reach a site.
Call our Apache Junction team for emergency repair, scheduled maintenance, inspection prep, parts or a rental boiler. We serve Flagstaff and all of Arizona.
Request emergency service online