Boston’s Trusted Heat Pump Experts - Designed for Comfort. Built for You.
We install high-performance Air Source Heat pumps tailored to your home and lifestyle - leveraging Mass Save rebates and local expertise to get it right the first time.
The Truth About Heat Pumps – What You Need to Know
Uncover the facts about costs, rebates, and efficiency before making the switch.
Get expert insights and avoid common pitfalls
Mass Save®
Concierge Service
Navigating the rebate process alone can be stressful—let our 1-on-1 Mass Save® Concierge Service guide you through every detail. With up to $10K in rebates, $0 down, and 0% financing for up to 84 months, we're here to help you explore all available options. Contact us today to get started—no pressure, just expert assistance.
Expert Heat Pump Installation Services
We specialize in high-efficiency systems, clean energy upgrades, and everything it takes to keep your home future-ready.
Full-service installation with a focus on comfort, savings, and long-term peace of mind.
We handle everything, from rebates to safe tank removal, so you can enjoy comfort without the stress.
witch to a modern heat pump system with full support and cash rebates available.
From ductless to hybrid setups, we tailor every system to fit your space, improve efficiency, and keep your home feeling just right.
Whether you choose a high-efficiency heat pump or traditional A/C, we’ll match the right system to your setup for cool, seamless comfort.
Get the best of both worlds with a dual-fuel setup that adapts to the weather and keeps your home efficient in every season.
From custom ducts to ventilation and IAQ systems, we create cleaner, more efficient air throughout your home.
Ensure safety, reliability, and room for future tech with an upgraded panel that supports modern energy demands.
Charge your vehicle with confidence using solutions that fit your existing setup and future needs
Proudly Serving Massachusetts Communities
Explore our heat pump and HVAC service area to see if we’re in your town. We’re committed to delivering expert comfort solutions across dozens of local communities. View Full Service Area ›
Our Process
At SumZero Energy Systems, our 7-step process makes upgrading to a heat pump simple and stress-free. From consultation to installation and beyond, we guide you every step of the way—with clarity, care, and expert support.
Over 1,800 Massachusetts Homes Transformed with Tailored Heating and Cooling Solutions
Every home is unique, and so is our approach. As licensed MassSave® Heat Pump Installers (HPIN), we specialize in designing and installing systems that perfectly fit your home. We guide homeowners through the entire process, ensuring they understand their new heat pump's installation, operation, and maintenance. With us, your search for the ideal heating and cooling solution ends, backed by expertise and commitment to your satisfaction.
Customer Testimonials
We Specialize in Happy Customers
Stay Informed with Expert HVAC Insights
Get smarter about HVAC with the latest articles written by industry experts—designed to help you make the best decisions for your home.
Not Sure Where to Start? We’ll Guide You
Let our experts design the right heating and cooling solution—customized for your comfort, your layout, and your energy goals. No pressure. Just clarity.
Request FREE ESTIMATE