Field Service Tech III

Company: MI Windows and Doors
Location: Manchester
Posted on: February 23, 2026

Job Description:

Job Description Window and Door Field Service Tech III in Tampa, FL, at PGT Innovations (Part of MITER Brands) As a Field Service Technician III , you represent MITER Brands and our trusted family of brands—including Milgard, MI Windows & Doors, and PGT Innovations—by delivering expert, high?level service in the field. This senior?level role requires advanced technical knowledge, independent decision-making, and the ability to resolve complex window and door issues while providing exceptional customer experience. You’ll serve as a technical authority for field repairs, mentor junior technicians, and ensure every service interaction reinforces our commitment to quality, craftsmanship, and customer care. Compensation Range: $ - $ (depending on experience) Schedule: Monday – Friday, starting at 6:00 As part of MITER Brands—home to trusted names like Milgard, MI Windows & Doors, and PGT Innovations—we serve builders, remodelers, contractors, and homeowners nationwide with integrity, innovation, and excellence. Responsibilities Perform complex diagnostics, repairs, retrofits, and adjustments on a full range of window and door products—including escalated or non?standard issues. Conduct advanced on?site inspections and determine root cause of failures with minimal guidance. Execute high?precision repairs requiring expert understanding of product engineering, installation methods, and structural interface. Serve as a senior field representative, addressing escalated customer concerns with professionalism and confidence. Clearly communicate technical findings, service options, and preventative recommendations to homeowners, builders, and contractors. Uphold MITER Brands’ standards for customer experience and professionalism during every visit. Provide mentorship, ride?a longs, and technical coaching for Field Service Technicians I & II. Collaborate with manufacturing, engineering, quality, and customer care teams to resolve repeated or systemic product issues. Offer feedback on product performance and field trends to support continuous improvement. Ensure accurate and detailed documentation of service work, parts usage, and resolutions. Maintain a clean, well?organized service vehicle, tools, and inventory—setting the standard for field readiness. Support safety compliance, onsite risk mitigation, and uphold company safety policies. Recommend product upgrades, preventative maintenance programs, and efficiency improvements to customers. Participate in specialized training and certifications to remain current on emerging products and repair techniques. Assist in process improvements impacting field service, customer satisfaction, or product durability. Qualifications High school diploma or equivalent; advanced technical training or industry certification strongly preferred 5 years of progressive experience in window/door service, installation, maintenance, or related trades Expert troubleshooting capabilities and the ability to resolve complex technical issues independently Strong communication and customer?service skills with the ability to handle escalated situations Valid driver’s license with clean driving record Ability to lift, carry, and maneuver up to 50 lbs, including ladders and materials Demonstrated ability to train, mentor, or guide junior-level technicians Prior experience with Milgard, MI Windows & Doors, or PGT product lines Proficiency with digital service systems, documentation tools, and mobile diagnostics Familiarity with building codes, installation standards, and construction best practices MITERopsfl What We Offer Our benefits package includes coverage of your health, wealth, and wellness for you and your eligible spouse/dependents. We offer a competitive salary and benefits package, including a 401k with company match and generous paid time off to help you balance your life. Below is a list of benefits you will enjoy while working with our company. - Three comprehensive Medical plan options Prescription Dental Vision - Company Paid Life Insurance - Voluntary Life Insurance - Supplemental Hospital Indemnity, Critical Illness, and Accident Insurance - Company-paid Short-Term Disability - Company-paid Long-Term Disability - Paid time off (PTO) and paid Holidays - 401k retirement plan with company match - Employee Assistance Program - Teladoc - Legal Insurance - Identity Theft Protection - Pet Insurance - Team Member Discount Program - Tuition Reimbursement - Yearly Wellness Clinic MITER Brands, also known as MI Windows and Doors, Milgard and PGT Industries are an equal-opportunity employer. The company does not discriminate based on religion, race, creed, color, national origin, sex, age, disability, handicap, veteran status, sexual orientation, genetic information, or any other applicable legally protected category.

Keywords: MI Windows and Doors, Nashua , Field Service Tech III, Engineering , Manchester, New Hampshire