Maximize your home's comfort and energy efficiency.
VoltBook partners with 1A Home Energy, an eligible Mass Save® Home Performance Contractor with 18+ years of experience delivering Home Energy Assessments and energy-saving upgrades across Massachusetts — following every program standard and guideline.
HVAC & Insulation Solutions
Comprehensive energy-efficiency offerings for every Massachusetts household.
Heat Pump Installation
Cold-climate whole-home and partial-home heat pumps installed by certified technicians. Efficient heating and cooling in a single modern system — with Mass Save® rebates up to $10,000.
HVAC Repair & Servicing
Fast, reliable diagnosis and repair for heating and cooling systems. Our specialists get your system running efficiently and comfortably again.
Preventive Maintenance
Seasonal HVAC tune-ups that extend equipment life, prevent breakdowns, and keep your system performing at peak efficiency year-round.
Home Insulation & Air Sealing
High-quality insulation for attics, walls, basements, and crawl spaces plus no-cost sealing of air leaks — a thermal barrier that keeps you warm in winter and cool in summer.
No-Cost Home Energy Assessment
A certified specialist evaluates your home, installs instant-savings measures, and builds a custom Decarbonization and Electrification plan — all at no cost to qualifying homeowners.
Smart Thermostats & Lighting
Free or discounted smart thermostats, LED lighting, and other quick-win upgrades installed during your home energy assessment.
Mass Save® Incentives
Eligible benefits qualifying homeowners may receive:
How it works
Getting started with Mass Save® is simple.
Schedule
Book your no-cost, no-obligation home energy assessment online or by phone.
Assess
A certified specialist evaluates your home and recommends upgrades tailored to it.
Upgrade
Choose from rebates, incentives, and 0% financing to complete the improvements.
Customer satisfaction is our priority
Numerous 5-star reviews from homeowners across the Greater Boston area.
"They installed an efficient HVAC system and did a comprehensive air sealing job on my home. I noticed a huge difference in comfort and my energy bills in no time. The team was very professional. Highly recommend!"
Carlos M.
Verified Customer
"Full HVAC maintenance check and Mass Save® air sealing — fantastic from start to finish. The team was attentive, explained everything clearly, and results exceeded my expectations."
Amanda R.
Verified Customer
"Excellent heat pump install plus detailed air sealing that made all the difference. Quick, high-quality service and the energy savings are already visible. Worth every penny!"
Luis F.
Verified Customer
Frequently Asked Questions
What areas do you serve?
We serve homeowners across multiple regions in Massachusetts. If you're not sure whether we cover your area, contact us — we'll be happy to assist.
What types of HVAC systems do you install?
We specialize in energy-efficient heat pumps and other HVAC systems tailored to your home's needs. Our certified technicians ensure every system is properly installed and optimized for long-term performance.
Where can insulation be installed in my home?
We install insulation in attics, walls, basements, crawl spaces, and other key areas where heat is commonly lost — improving comfort and efficiency throughout your entire home.
Are HVAC and insulation services eligible for Mass Save® incentives?
Yes. Qualified homeowners may receive up to $10,000 in heat pump rebates and up to 100% incentives for insulation upgrades — after completing a no-cost Home Energy Assessment.
How do I know if I need more insulation?
Uneven temperatures, drafts, high energy bills, or a home that feels too hot or cold despite running the HVAC system are common signs. Our no-cost energy assessment evaluates your insulation levels.
Is the consultation really no-cost?
Yes. Qualifying customers receive a no-obligation, in-home consultation where we assess HVAC and insulation needs and explain the best solutions along with any available rebates.
Why Mass Save® works
Since 2008, Mass Save® has helped Massachusetts residents save billions on energy costs, reduce carbon emissions, and modernize hundreds of thousands of homes. Backed by the state's electric and gas utilities, it's one of the most effective residential energy programs in the country.