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

Competitive base + performance commission

Dental insurance

Vision insurance

Schedule / Expected Work Hours

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

Job Summary

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.

Responsibilities

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

Qualifications

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