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HVAC Technician

Overview

The HVAC Technician is responsible for the installation, commissioning, and service of heat pump systems, air handlers, and related HVAC equipment on residential energy efficiency projects. This role requires EPA Section 608 certification, strong technical troubleshooting skills, and a commitment to Mass Save quality standards.

Primary Responsibilities

Installation & Commissioning

• Install and commission heat pump systems (mini-split, central, air-to-water) per manufacturer specifications and Mass Save requirements
• Perform EPA Section 608 compliance checks and refrigerant handling
• Conduct ductwork design, installation, and sealing for central systems
• Perform Manual J load calculations and verify system sizing
• Complete refrigerant charge verification and superheat/subcooling measurements
• Pressure test ducts and verify air sealing per ANSI/RESNET standards

Quality & Compliance

• Verify installation quality for HERS rater inspections
• Document all work with photos and measurements per company standards
• Maintain EPA Section 608 certification and all required licenses
• Pass Mass Save quality audits and third-party inspections
• Follow OSHA safety protocols and company safety policies
• Attend training on new equipment, refrigerants, and best practices

Customer Engagement

• Explain system operation and maintenance to homeowners
• Walk through thermostat programming and settings
• Respond professionally to customer questions and concerns
• Identify additional work opportunities (HVAC upgrades, controls, etc.)

Team Collaboration

• Coordinate with insulation crews and other trades on job sites
• Report equipment issues to management immediately
• Support crew chiefs and project managers with job completion

Qualifications Required

• Education: High school diploma or GED
• Licensing: EPA Section 608 certification (minimum) — preferably Universal or Core + High-Pressure
• Experience: 2–5 years of HVAC installation experience (heat pump experience preferred but not required)
• Technical Skills:
• Ability to read blueprints, wiring diagrams, and technical specifications
• Proficiency with vacuum pumps, pressure gauges, multimeters, and diagnostic tools
• Basic understanding of refrigeration cycles and thermodynamics

• Skills:

• Strong problem-solving and troubleshooting abilities
• Ability to work independently and as part of a crew
• Good communication skills (written and verbal)
• Willingness to obtain additional certifications (EPA Universal, blower door, heat pump commissioning)

Physical Requirements

• Ability to lift 50+ lbs regularly
• Comfortable working at heights, on ladders, and in attics/basements
• Ability to work in varied weather conditions and tight spaces

Salary Range

$58,000 – $75,000+ annually (OT Dependent)

Compensation Structure:

• Base salary + performance bonuses
• Certification reimbursement (EPA Universal, blower door testing, heat pump commissioning)
• Health insurance, Dental, paid time off

Insulation Installer

Overview

The Insulation Installer is responsible for the installation of insulation systems (batt, blown-in, and spray foam) on residential energy efficiency projects. This role is critical to achieving energy performance targets and requires attention to detail, physical capability, and a commitment to quality workmanship per Mass Save standards.

Primary Responsibilities

Installation & Execution

• Install batt insulation in walls, attics, and crawlspaces per plan specifications and R-value requirements
• Operate spray foam equipment (open-cell and closed-cell) safely and accurately
• Install blown-in insulation in existing cavities and new construction
• Perform air sealing work (caulk, foam, tape) at joints, penetrations, and transitions
• Verify insulation placement and coverage; address voids and compression issues
• Install moisture barriers and vapor retarders per specifications
• Ensure Grade I insulation installation quality per ANSI/RESNET standards

Quality & Safety

• Maintain safety certifications (e.g., spray foam operator certification) and retraining as required
• Follow OSHA safety protocols, PPE requirements, and company safety standards
• Pass internal quality audits and third-party inspections (including HERS rater verification)
• Document all work with photos and measurements
• Report equipment issues and quality concerns to crew leadership

Job Site Management

• Set up and break down work areas properly
• Manage material waste and site cleanup
• Coordinate timing with other trades (HVAC, electrical, etc.)
• Communicate progress and obstacles to crew chief or project manager

Continuous Improvement

• Stay current with spray foam and air sealing best practices
• Provide feedback on material performance and installation challenges
• Support training of junior crew members
• Participate in Mass Save technical training and audits

Qualifications Required

• Education: High school diploma or GED
• Experience: 1–3 years of insulation installation experience (spray foam preferred but not required)
• Technical Skills:

• Ability to read and understand plan specifications and energy models
• Proficiency with hand tools, power tools, and spray foam equipment
• Understanding of building science basics (moisture, air sealing, R-values)

• Personal Attributes:

• Ability to work independently and take direction
• Strong attention to detail and quality
• Physical stamina and comfort working in tight spaces, high heat, and cold environments
• Willingness to obtain spray foam certification and continuing education
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Physical Requirements

• Ability to lift 50+ lbs regularly and work overhead
• Comfortable in attics, crawlspaces, and tight wall cavities
• Ability to work in varied weather conditions and heights
• Tolerance for dust, fiberglass, and chemical fumes (with proper PPE)

Compensation Structure:

• Base salary + performance bonuses for zero-rework jobs
• Spray foam certification and continuing education reimbursement
• Health insurance, Dental, paid time off
• Clear path to Crew Lead or Project Coordinator roles

Project Manager

Overview

The Project Manager owns the profitability, timeline, and quality of assigned projects from initial estimate through closeout. This role is critical to C2S Energy's success and requires a blend of technical knowledge, leadership, and financial acumen. The PM is responsible for coordinating all trades, managing budgets, and ensuring customer satisfaction on every job.

Primary Responsibilities

Project Planning & Scheduling

• Develop detailed project schedules and coordinate all trades (HVAC, insulation, electrical, etc.)
• Create pre-project plans including crew assignments, material procurement, and site logistics
• Conduct pre-construction meetings with customers and internal teams
• Plan for weather, permitting delays, and other contingencies
• Adjust schedules as needed and communicate changes to all parties
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Budget Management & Profitability

• Own the project profit margin from estimate through closeout
• Track labor hours, material costs, and change orders in real-time
• Identify cost overruns early and implement corrective actions
• Negotiate subcontractor pricing and manage vendor relationships
• Reconcile project profitability against budget monthly
• Recommend process improvements to increase efficiency

Quality & Compliance

• Verify work quality at each phase (pre-construction, rough-in, final)
• Ensure all work meets Mass Save and program requirements
• Coordinate HERS rater inspections and address any deficiencies
• Maintain project documentation (permits, certifications, change orders, photos)
• Ensure final inspection and closeout compliance
• Conduct post-installation follow-up with customers

Team Leadership & Coordination

• Manage internal crew (HVAC techs, installers, laborers) and external trades
• Conduct daily stand-ups and provide clear direction
• Address performance issues and recognize excellent work
• Train crew members on new equipment, safety protocols, and best practices
• Foster a culture of quality and accountability

Customer Management

• Serve as primary point of contact for assigned projects
• Present findings and recommendations clearly to homeowners
• Manage customer expectations and address concerns professionally
• Gather feedback post-project and identify upsell opportunities
• Maintain customer satisfaction (target: >95% satisfaction score)

Process & Continuous Improvement

• Document lessons learned and share with leadership
• Identify bottlenecks and recommend process improvements
• Contribute to SOP development and refinement
• Track and report key metrics (schedule variance, budget variance, quality scores, customer satisfaction)

Qualifications Required

• Education: High school diploma or GED; some college or trade certification preferred
• Experience:

• 3–5 years of field experience (HVAC, insulation, or related trades) or 2+ years of project management in construction/trades
• Demonstrated experience managing budgets and labor
• Familiarity with energy efficiency programs, Mass Save, or HERS ratings (can be learned on the job)

• Technical Knowledge:

• Strong understanding of HVAC and insulation systems
• Ability to read blueprints, specifications, and energy models
• Basic knowledge of electrical and building code compliance

• Business Skills:

• Proficiency with project management software (Excel, scheduling tools, CRM)
• Strong math and financial acumen (calculating labor hours, material costs, profit margins)
• Ability to create and manage budgets

• Personal Attributes:

• Excellent communication and leadership skills
• Problem-solving ability under pressure
• High attention to detail and organizational skills
• Willingness to learn new systems and technologies
• Accountability mindset with a focus on results

Physical Requirements

• Ability to visit job sites regularly (frequent travel)
• Comfortable communicating with field crews and homeowners

Compensation Structure:

• Base salary + performance bonus tied to project profitability, on-time delivery, and customer satisfaction
• Health insurance, Dental, paid time off
• Professional development budget (certifications, training, conferences)
• Path to Operations Director or Development Manager roles for high performers

Overview

The HERS Rater is a certified professional responsible for conducting home energy rating assessments, performing energy modeling, and verifying compliance with energy performance standards (Mass Save, ENERGY STAR, Stretch Code, etc.). This role requires strong technical knowledge, attention to detail, and understanding of building science and software proficiency.

Primary Responsibilities

Energy Modeling & Analysis

• Conduct detailed energy modeling using REM/Rate, Ekotrope, or equivalent software
• Input building characteristics including insulation, windows, HVAC, water heating, and appliances
• Perform Manual J/D/S calculations for HVAC system verification
• Generate HERS Index scores and provide energy performance recommendations
• Prepare pre-construction and post-construction energy models per program requirements
• Analyze blower door and duct leakage test results
• Document all modeling assumptions and inputs clearly

Field Inspections & Testing

• Perform blower door tests (depressurization/pressurization) and interpret results
• Conduct duct leakage testing (DuctBlaster) when applicable
• Perform visual inspections of insulation installation quality, air sealing, and HVAC equipment
• Measure building dimensions, window orientation, and thermal mass features
• Photograph installed systems and document building characteristics
• Verify Grade I insulation installation per ANSI/RESNET/ACCA standards
• Perform rough-in and final inspections per program timelines

Compliance & Documentation

• Ensure all projects meet program requirements (Mass Save, ENERGY STAR, Stretch Code, etc.)
• Maintain RESNET/HERS Rater certification current and in good standing
• Complete all required checklists and certifications per program guidelines
• Prepare final HERS reports with detailed findings and recommendations
• Maintain detailed project files with all inspection photos, measurements, and test results
• Adhere to confidentiality and ethical standards

Quality & Communication

• Communicate findings to builders, contractors, and homeowners clearly and professionally
• Provide technical feedback on energy modeling and building performance
• Identify deficiencies and recommend corrective actions
• Participate in quality audits and third-party reviews
• Support customer education on energy performance and HERS scores

Continuous Learning

• Stay current with building science, energy code changes, and software updates
• Participate in HERS Rater training and industry conferences
• Contribute to process improvements and best practices
• Provide feedback to leadership on program requirements and challenges

Qualifications Required

• Education: High school diploma or GED; some college or technical training preferred
• Certification:
• Active RESNET HERS Rater certification required
• Blower door testing certification (BPI, RESNET, or equivalent)
• Duct leakage testing certification (if applicable)
• Experience:
• 1–3 years of HERS rating experience or building science background
• Familiarity with energy modeling software (REM/Rate, Ekotrope, or equivalent)
• Experience with blower door and duct leakage testing
• Knowledge of energy codes and programs (Mass Save, ENERGY STAR, Stretch Code)
• Technical Skills:
• Strong understanding of building science (insulation, air sealing, thermal bridging, moisture management)
• Proficiency with REM/Rate, Ekotrope, or similar energy modeling software
• Ability to perform and interpret blower door and duct tests
• Ability to read blueprints and understand HVAC systems
• Strong math and analysis skills
• Personal Attributes:
• Attention to detail and accuracy
• Ability to communicate technical concepts clearly
• Strong organizational and documentation skills
• Problem-solving ability
• Professional demeanor and ethical standards

Physical Requirements

• Ability to perform field inspections (climbing ladders, accessing attics/basements)
• Ability to operate blower door and duct testing equipment
• Ability to travel to job sites and meet inspection schedules

Salary Range

Compensation Structure:

• Base salary (salaried position)
• Health insurance, Dental, paid time off
• Continuing education and certification reimbursement
• Potential bonus for high-volume, high-quality ratings
• Path to QA/Quality Assurance Manager or Technical Specialist roles

C2S Energy is a fast-growing energy efficiency and HVAC contracting company based in New Bedford, MA. We work across residential, small business, commercial, and industrial sectors — primarily through the Mass Save program — with a team of 30+ field technicians. We're building something real here, and we need great people behind the scenes to keep things running.

What you'll do

• Manage day-to-day office operations including phones, scheduling, and correspondence with customers and program partners
• Support invoicing, job tracking, and data entry in QuickBooks Online and monday.com
• Assist with onboarding paperwork, HR coordination, and keeping employee files current
• Help coordinate field crew logistics, fleet paperwork, and vendor communications
• Liaise with Mass Save program administrators on job submissions, approvals, and documentation
• Keep internal systems organized and help the leadership team stay on top of priorities

What we're looking for

• Organized, reliable, and able to manage multiple tasks in a busy environment
• Comfortable with QuickBooks, Google Workspace, and/or project management tools (monday.com experience a plus)
• Strong communicator — comfortable on the phone and in writing
• Experience in construction, trades, or a service-based business is a big plus
• Self-starter who takes initiative and doesn't need to be micromanaged

SENIOR HVAC INSTALLER / LEAD TECHNICIAN

OVERVIEW

C2S Energy is hiring experienced HVAC installers to lead heat pump installations, commissioning, and service on residential energy efficiency projects across Massachusetts. This is not an entry-level role. We're looking for installers who can take a job from rough-in through commissioning without supervision, hold their own on a Mass Save quality audit, and bring junior techs up to standard.

PRIMARY RESPONSIBILITIES

Installation & Commissioning

• Own heat pump installations start to finish — mini-split, multi-zone, central, and air-to-water — per manufacturer specs and Mass Save requirements
• Perform line set brazing, evacuation, and refrigerant charge verification including superheat/subcooling
• Design, install, and seal ductwork for central systems
• Run Manual J load calculations and verify equipment sizing before install
• Pressure test ducts and verify air sealing per ANSI/RESNET standards
• Diagnose and resolve complex system faults, including controls, electrical, and airflow issues

Quality & Compliance

• Deliver installations that pass HERS rater inspection and Mass Save quality audits the first time
• Document all work with photos and measurements per company standards
• Maintain EPA certification and all required licenses
• Follow OSHA safety protocols and company safety policies

Crew Leadership

• Mentor and train less experienced installers on technique, code, and program standards
• Review crew work for quality and completeness before sign-off
• Coordinate with insulation crews, electricians, and other trades on site
• Flag equipment, scheduling, or scope issues to management immediately

Customer Engagement

• Explain system operation, maintenance, and thermostat programming to homeowners
• Handle customer questions and concerns professionally on site
• Identify additional work opportunities (HVAC upgrades, controls, etc.)

QUALIFICATIONS

Required

• 4+ years of hands-on HVAC installation experience
• Demonstrated heat pump installation and commissioning experience — ducted and ductless
• EPA Section 608 Type II certification
• OSHA 10-Hour Construction certification
• Fluent reading of blueprints, wiring diagrams, and technical specifications
• Proficiency with vacuum pumps, micron gauges, manifolds, multimeters, and diagnostic tools
• Working knowledge of refrigeration cycles, thermodynamics, and psychrometrics
• Valid driver's license and clean driving record
• Own hand tools

Preferred

• EPA Section 608 Universal certification
• OSHA 30-Hour Construction certification
• Massachusetts Refrigeration Technician or Sheet Metal license
• Prior work in Mass Save, WAP, or similar utility-funded programs
• Manufacturer certifications (Mitsubishi Diamond, Daikin, Fujitsu, Bosch)
• Experience leading a two- or three-person crew

PHYSICAL REQUIREMENTS

• Ability to lift 50+ lbs regularly
• Comfortable working at heights, on ladders, and in attics, basements, and crawl spaces
• Ability to work in varied weather conditions and tight spaces

COMPENSATION & BENEFITS

$40 – $50 per hour, depending on experience and certifications

• Paid travel time from the warehouse to the job site and back
• Paid lunch break, up to 1 hour
• Overtime at time-and-a-half
• Annual bonus
• Company vehicle provided for job site travel
• Health, dental, and vision insurance
• Paid time off, personal time, and sick time