Engineered for Comfort Built for the Future
Cold-climate heat pumps, mini-splits, and hot water systems Designed by energy engineers
Why ThermoNex
Engineering-grade precision.
Homeowner-first values.
Engineer-Designed
Every system sized with precise Manual J load calculations — not guesswork.
Honest Advice
We recommend what your home actually needs, not the most expensive option.
Transparent Pricing
Detailed proposals with no hidden fees. You know exactly what you're paying for.
Maximize Rebates
We identify every available state incentive and handle all the paperwork for you.
Our Services
Systems built for
cold-climate performance.
Cold-Climate Heat Pumps
High-efficiency systems engineered to perform in sub-zero temperatures. We size every installation with precise load calculations for maximum comfort and efficiency.
Ductless Mini-Splits
Targeted heating and cooling for individual rooms or zones. Ideal for older homes without ductwork — installed cleanly with minimal disruption.
Heat Pump Water Heaters
Up to 3× more efficient than conventional electric water heaters. Eligible for significant state rebates through NYS Clean Heat and NJ Clean Energy programs.
The Process
How it works
Free Assessment
We evaluate your home's heating and cooling loads, existing systems, and rebate eligibility — at no cost.
Engineered Design
Our engineers produce a precise system design with Manual J calculations, equipment specs, and a detailed proposal.
Professional Install
Expert installation by our team, with full rebate paperwork handled and a post-install performance check.
Year-Round Comfort
Warm in winter.
Cool all summer.
Modern heat pump systems deliver precise, whisper-quiet comfort in every room without the drafts, hot spots, or noise of older systems. Engineered for your home's specific load, not a generic spec sheet.
Explore our systemsState Rebates
Homeowners can claim thousands in state rebates.
We handle the paperwork.
Up to $8,000–$10,000 back in New York (NYS Clean Heat) and up to $8,900 in New Jersey — rebate amounts vary by utility and project, and we handle all the paperwork for you.
$0K+
NY State Rebates (NYS Clean Heat)
$0K+
NJ Clean Energy Rebates
0%
Paperwork handled by us
Our Approach
Designed by engineers.
Not salespeople.
Every ThermoNex installation starts with a Manual J load calculation — the engineering standard for sizing HVAC systems. We measure your home's actual heat loss and gain before recommending any equipment.
The result: a system that's sized right, runs efficiently, and keeps your home comfortable without short-cycling or overshooting.
Meet the teamBe first in line when we open for installations.
Join our waitlist and get early access to consultations, rebate guidance, and priority scheduling.
Join the waitlist