Family-Owned. Locally Trusted. Always On Call.
Reliable Heating & Cooling for Every Season
Why Choose Us

Family-Owned & Operated
We treat your home like our own — with honesty, care, and quality craftsmanship.

24/7 Emergency Services
When your heat or AC goes out, we’re ready to fix it fast — day or night.

Affordable & Transparent
We offer clear, upfront quotes with no hidden fees, making quality HVAC services accessible to all.

Fully Licensed Professionals
We specialize in Mini Split installs and service — perfect for energy-efficient comfort.
From Emergency Repairs to Full System Installs

24-Hour Emergency Service
We provide prompt and accurate water heater repair services throughout the Greater Manchester Area.

Mini Split Install & Service
Efficient, ductless heating and cooling solutions tailored to your space.

Preventative Maintenance
Regular checkups keep your systems running smoothly and help prevent costly breakdowns.

Heat Pump Installs
Stay energy-efficient with modern heat pump systems for year-round climate control.

Boiler & Water Tank Install
Reliable water heater installations with expert connections and clean finishes.

Central AC Service & Install
Cool your home effectively with our professional AC servicing and full system installs.

Troubleshooting & Diagnostics

Add-On Installs & Retrofits

Family-Owned. Community-Focused. Built on Trust.
At Hollis Heating and Cooling, we’re more than just an HVAC company — we’re your neighbors. Founded by Trevor Buzzell after years of hands-on experience in both residential and commercial service, our business was built from the ground up with one mission: to bring honest, high-quality heating and cooling solutions to families across New Hampshire, Maine, and Massachusetts.
What started with a single truck and a commitment to doing things right has grown into a trusted team that puts your comfort first — 24 hours a day, 7 days a week. As a family-run business, we believe in fair pricing, dependable service, and treating every home like it’s our own.
Whether it’s a last-minute repair or a full system install, we show up ready to help — no gimmicks, no shortcuts, just solid work you can count on.
Serving a Diverse Clientele
Whether you’re a homeowner, property manager, or business owner, Hollis Heating and Cooling is committed to delivering dependable, high-quality HVAC solutions tailored to your needs.
We work on everything from single-family homes and rental units to commercial spaces and new developments — providing honest advice, expert installations, and fast, reliable repairs.
Our services include:
- 24/7 Emergency HVAC Repairs
- Mini Split Installation & Service
- Heat Pump and Central AC Installs
- Water Heater and Tank Replacements
- Preventative Maintenance Plans
- System Troubleshooting & Diagnostics
- New Construction & Retrofit HVAC Installs
No matter the size of your project, we bring the same care, professionalism, and attention to detail — because your comfort is our priority.

What Our Clients Are Saying About Us
A Local Team You Can Count On
At Hollis Heating and Cooling, we believe that comfort starts with trust. As a family-owned business serving Hollis, NH and beyond, we’re known for our honest work, reliable service, and commitment to getting the job done right — the first time.
Whether it’s a late-night repair or a full system upgrade, our experienced team treats your home like our own, showing up on time, communicating clearly, and delivering results that last.
Let us take care of your heating and cooling needs — so you can focus on what matters most.
Let’s Get Your HVAC Problems Solved
Whether it’s a last-minute emergency or a planned upgrade, Hollis Heating and Cooling is here to help. We handle everything from quick fixes to full installations — with honest pricing, clear communication, and service you can rely on.
Fill out the form below or call us directly to speak with a technician. We’re standing by 24/7 to keep your home comfortable and stress-free.
