We are looking to hire a full-time service boiler technician with experience on domestic and heating boilers.

• Strong troubleshooting and diagnostic abilities.
• Ability to read mechanical, electrical, and piping diagrams and schematics.
• Experience with combustion analysis equipment.
• Knowledge of hydronic systems and domestic hot water systems.
• Familiarity with boiler controls and BAS integration.
• Excellent customer service and communication skills.
• Ability to work independently, as part of a team, and prioritize multiple service calls.
• Valid driver's license with a clean driving record.
• Ability to lift equipment and work in mechanical rooms, rooftops, and confined spaces when required.

Boiler Operation & Maintenance

• Perform routine preventive maintenance on commercial and industrial boiler equipment and associated systems.
• Maintain low-pressure boilers, high-pressure boilers, power boilers, and domestic hot water heating systems.
• Inspect, diagnose, troubleshoot, repair, and service gas-fired and hydronic heating systems.
• Perform scheduled boiler inspections and ensure systems operate safely and efficiently.
• Monitor boiler operation, temperatures, pressures, combustion performance, and system controls.
• Facilitate periodic boiler cleaning and heat exchanger maintenance.
• Test boiler water for corrosive deposits and chemical balance; treat water as required to prevent scaling and corrosion.
• Inspect burners, combustion chambers, refractory, venting systems, and heat exchangers.
• Clean burners, pilot assemblies, igniters, flame sensors, and combustion components.
• Flush domestic hot water storage tanks and boiler systems as required.
• Inspect and clean condensate drains and neutralizers.
• Inspect insulation and piping for leaks or damage.

Repairs & Troubleshooting

• Diagnose electrical, mechanical, gas, plumbing, and control system failures.
• Troubleshoot no-heat, no domestic hot water, lockout, flame failure, pump failure, low-pressure, high-temperature, and control issues.
• Replace defective valves, gas valves, mixing valves, expansion tanks, pressure reducing valves, backflow preventers, flow switches, pressure switches, sensors, relays, filters, steam gauges, relief valves, and actuators.
• Replace blower motors, combustion blowers, pumps, motors, bearings, igniters, flame rods, control boards, and ignition components.
• Repair domestic hot water recirculation systems and hydronic heating systems.
• Repair leaking piping, fittings, heat exchangers, and associated mechanical equipment.
• Purge air from hydronic systems and balance heating loops.

Controls & Electrical

• Troubleshoot 24V, 120V, and 480V electrical systems.
• Program and configure boiler controllers and building automation interfaces.
• Verify sensor calibration and proper operation of safety devices.
• Troubleshoot relay boards, VFD-controlled pumps, and boiler management systems.
• Perform electrical wiring repairs according to manufacturer specifications.

Combustion & Gas

• Perform combustion analysis and adjust burners for peak efficiency.
• Verify proper ignition sequence and flame safeguard operation.
• Adjust manifold gas pressure and air-to-fuel ratios.
• Inspect gas piping and perform leak testing.
• Verify venting and combustion air requirements.

Installation & Commissioning

• Install commercial boilers, domestic water heaters, storage tanks, pumps, controls, gas piping, expansion tanks, venting systems, and associated equipment.
• Perform startup, commissioning, and operational testing of new installations.
• Verify system performance after repairs and installations.

Safety & Compliance

• Monitor boiler systems to ensure safe operation.
• Test low water cutoffs, pressure relief valves, spill switches, blocked vent switches, and other safety devices.
• Follow OSHA regulations, lockout/tagout procedures, and company safety policies.
• Identify unsafe equipment or hazardous conditions and immediately notify supervisors.
• Maintain clean and organized mechanical rooms and work areas.
• Ensure compliance with all local, state, and federal mechanical and boiler codes.

Documentation

• Maintain and update required records for boiler operations.
• Complete service reports, maintenance records, and inspection documentation.
• Record combustion analysis and water treatment results.
• Prepare repair recommendations and replacement proposals.
• Track labor, materials, and equipment used on each project.
• Communicate findings with customers, supervisors, and maintenance personnel.

Additional Responsibilities

• Address problems with boiler systems and coordinate repairs with maintenance when necessary.
• Contact supervisors regarding potentially dangerous equipment or safety violations.
• Provide excellent customer service while representing the company professionally.
• Perform other related duties as assigned.

Required Skills & Abilities

• Extensive knowledge of industrial, commercial, and domestic boiler operation and maintenance.
• Experience troubleshooting gas-fired boilers, pumps, controls, and combustion systems.
• Excellent analytical and problem-solving skills.
• Strong mechanical and electrical troubleshooting abilities.
• Ability to safely operate hand tools, power tools, testing equipment, and combustion analyzers.
• Ability to follow all safety procedures and company processes.

Education & Experience

• High school diploma or equivalent required.
• Technical or vocational training in boiler systems, HVAC, plumbing, or mechanical systems is preferred.
• Experience working with commercial or industrial boilers is required.
• Valid state boiler operator license or ability to obtain one (where required).
• Experience with domestic hot water systems, hydronic heating systems, and commercial boiler controls preferred.

• High school diploma or equivalent required; technical or vocational training in boiler systems, HVAC, plumbing, or mechanical trades preferred.
• Minimum of 3–5 years of experience servicing commercial and industrial domestic hot water and heating boiler systems.
• Strong knowledge of low-pressure, high-pressure, and hydronic boiler systems, combustion equipment, pumps, controls, and gas-fired appliances.
• Ability to diagnose and repair mechanical, electrical, plumbing, gas, and control system issues using appropriate testing and diagnostic equipment.
• Ability to read and interpret mechanical drawings, electrical schematics, piping diagrams, and manufacturer service manuals while following all OSHA and safety regulations.
• Physically capable of lifting up to 50 pounds, climbing ladders, working in confined spaces, and performing field service in various indoor and outdoor environments.

Southwest Mechanical, Inc. (SWM) is a full-service mechanical contractor based in Southern California, specializing in HVAC, plumbing, boiler and hot water systems, electrical services, energy management, and general contracting. With over 20 years of experience, SWM has established itself as a trusted partner for large-scale commercial and residential projects, delivering design, installation, and maintenance services to ensure efficient and reliable building systems.

SWM caters to a broad range of industries, including high-rise buildings, commercial complexes, and industrial sites, and offers additional services such as preventative maintenance, 24-hour emergency service, roofing, weatherproofing, and consulting. Our commitment to innovative engineering, quality craftsmanship, and customer service has earned us long-term partnerships with several major property management firms.