Field Service Technician - Doors and Windows

Cornerstone Building Brands•San Antonio, TX

23h•Onsite

About The Position

The Field Service Technician 2 is responsible for performing advanced field diagnostics, repairs, and installations of windows and doors. This role requires strong technical knowledge of window and door systems, materials, and installation practices, as well as the ability to lead multi-technician jobs, conduct water tests, and handle escalated warranty concerns. The ideal candidate demonstrates advanced product knowledge, excellent communication skills, and the ability to deliver a high level of customer satisfaction while ensuring safety and quality in all service activities.

Requirements

High School Diploma or equivalent required.
Valid driver’s license with ability to successfully clear an MVR check.
3–5 years of general construction or building material installation experience preferred.
3–5 years of fenestration manufacturing or installation experience preferred.
Proficiency with hand and power tools.
Ability to complete advanced diagnostics, repairs, and documentation.
Strong understanding of installation practices for windows and doors.
Strong verbal and written communication skills, including the ability to write professional emails, reports, and documentation.
Strong organizational skills to manage multi-technician jobs.
Excellent customer service and escalation management skills.
Detail-oriented with the ability to complete advanced repairs accurately.
Physical stamina and dexterity; ability to lift and carry up to 50 lbs consistently, climb ladders, and work at heights.
Ability to prioritize tasks and manage time effectively.
Team-oriented, adaptable, and committed to safety and quality.
Must be at least 18 years of age to apply.

Nice To Haves

AAMA Installation Training certification preferred.

Responsibilities

Apply all knowledge and skills required of a Field Service Technician 1, including basic repairs, inspections, safety compliance, inventory, vehicle operation, and customer service.
Demonstrate expertise in multiple window types (single-hung, double-hung, casement, sliding) and door systems, including repair and replacement techniques.
Work with different window and door materials (wood, vinyl, aluminum, and various glass types) with proper techniques and care.
Utilize a range of tools such as drills, sealants, pry bars, caulk guns, and power tools with proficiency and accuracy.
Perform diagnostics and provide technical support via phone and email to internal and external stakeholders.
Conduct water tests according to company protocols and document results using internal software.
Apply knowledge of window and door installation practices to evaluate and support field projects.
Organize and coordinate jobs requiring two or more technicians, ensuring effective collaboration with internal teams and customers.
Deescalate warranty or service concerns professionally, maintaining customer confidence and satisfaction.
Perform specialized repairs, including water intrusion fixes, shaped products, and installation diagnostics.
Maintain strong relationships with customers and sales teams by providing clear communication, accurate documentation, and dependable service.
Expand and apply knowledge of company products and industry standards to support advanced fieldwork.
Travel within assigned territory daily; overnight travel may be required depending on territory.