Stay Warm in Winter. Cool in Summer. Pay Less Year-Round.
Sundial Solar is New Hampshire's Mitsubishi Diamond Dealer for heat pump mini-splits, efficient heating and cooling in one quiet system, built for New England winters.
Get Your Free Heat Pump Quote
Tell us about your home and heating needs, and we’ll schedule a free, no-pressure site assessment.
- About Us
Your Local Mitsubishi Diamond Dealer
Sundial Solar is a Mitsubishi Diamond Dealer bringing New England homeowners the most trusted name in heat pump technology. We’ve completed hundreds of installs since 2015, helping homes across New Hampshire, Vermont, Maine, and Massachusetts ditch unpredictable oil and propane bills for efficient, all-electric comfort.
Whether you need one heat pump to solve a problem room or a multi-zone system for your whole home, our factory-trained technicians design and install it right, backed by Mitsubishi’s strongest warranty support.
- Our Services
Heat Pump Solutions Built for New England
Ductless Mini-Split Installation
- Single-zone or multi-zone systems
- No ductwork required, fits any room or addition
- Mitsubishi Hyper-Heat® technology
- Full heating capacity down to 5°F, operates to -13°F
- Whisper-quiet indoor & outdoor units
Heating & Cooling, One System
- Heat AND cool with a single unit, year-round
- Up to 40% more efficient than electric baseboard heat
- Wi-Fi enabled controls from your phone
- Zoned comfort: set different temps per room
- Backed by Mitsubishi's strongest warranty tier
Heat Pump + Solar Pairing
- Run your heat pump on power your roof generates
- Right-sized solar array to offset energy use
- Optional battery backup for true energy independence
- Lock in predictable heating & cooling costs for decades
- One local team for design, install, and support
- Our Process
What to Expect
No hard sell, just a clear, honest process from first visit to finished install.
Free Site Assessment
We come to your home, assess your heating and cooling needs, and recommend the right system. No pressure, no obligation.
Custom System Design
Whether you need a single-zone unit for one room or a multi-zone system for your whole home, we design it to fit your space and budget.
Professional Installation & Ongoing Support
Our Diamond-certified technicians handle everything, most installations are completed in a single day. And because we’re a local company, we’re here when you need us, not a call center somewhere else.
- Why Choose Us
The Sundial Advantage
Mitsubishi Diamond Dealer
As a Diamond Dealer, our technicians are factory-trained and certified by Mitsubishi, meaning the best installation, the strongest warranty, and a team that stands behind every system we put in.
Built for New England Winters
Mitsubishi's Hyper-Heat® technology delivers full heating capacity down to 5°F and keeps working all the way to -13°F. New Hampshire winters don't scare this system.
We Do Solar Too
Pair your heat pump with a Sundial solar array and run it on power your roof generates, oil prices go up, propane prices go up, but sunshine doesn't send you a bill.
- Our reviews
What Our Customers Are Saying
See why New England homeowners trust Sundial Solar with their heating and cooling.
- Our Work
See Our Heat Pump Installations
From single-room mini-splits to whole-home multi-zone systems, explore recent Mitsubishi heat pump installations across New Hampshire, Vermont, Maine, and Massachusetts.
Ready to Make the Switch?
Whether you’re ready to move forward or just want to understand your options, we’re happy to talk. There’s no hard sell here, just honest advice from a local team that knows New England homes. Call 1-888-4-SUNDIAL or fill out the form for your free quote.