Commercial HVAC Sales Engineer Sales Estimator

Benefits

• Opportunities to attend trade events
• Company with strong regional reputation
• Professional training & development
• Supportive, high-performing team culture
• Exposure to multi-million-dollar projects
• Career growth in PE-backed platform
• Paid time off & holidays
• 401(k) with company match
• Health, dental & vision insurance

Full-time, Monday–Friday, standard business hours (approx. 8:00 AM – 5:00 PM). Occasional travel for client meetings, job walks, and industry events.

Winchester Mechanical a leading commercial HVAC contractor in Nashua, NH, is seeking a Sales Engineer / Estimator to drive growth across service, retrofit, and large-scale construction projects. You’ll combine business development and estimating expertise to secure profitable work, serving as a cornerstone of our continued expansion in the Northeast market.

• Generate new opportunities leveraging existing relationships
• Sell and bid projects from $10K to $2M+ in size
• Develop proposals, cost estimates, and bid packages
• Review drawings and specifications for scope accuracy
• Build relationships with owners, GCs, and engineers
• Represent the company at meetings and trade events
• Provide market insights and mentor junior estimators
• Collaborate with internal teams for seamless project handoff

• 7+ years in HVAC / mechanical sales and estimating
• Proven record of winning projects up to multi-million range
• Established book of business and client network
• Strong technical knowledge of HVAC systems and design
• Skilled in Microsoft Excel and estimating software
• Excellent communication and negotiation skills
• Bachelor’s degree or equivalent experience preferred