Unsure where to start?
Call if you’re unsure… We’ll walk you through it, price it, and tell you exactly what to expect — no pressure, no guesswork, even if you don’t buy from us. We just want to help
SELF-INSTALL SAVINGS.
PRO RELIABILITY.
The Only Mini-Split That Is "Assisted DIY" - But Comes With Real HVAC Support.
HOW GWIN WORKS
Install It Yourself
Easy To Buy. Easy To Install. Convenient. Less Expensive.
We Send The Tech
Verifies No Leaks. Commissions Your System. Gives Pro Assurance.
Worry Free Warranty
We Warranty Your Work, And The Techs. Full Support. No DIY Risk.

Equivalent Price. Equivalent Installation. Smarter Choice.
The Difference Is... Everything.

Quick Connect Flareless Fittings
NO COILED UP PROBLEMATIC, UNSIGHTLY LINESETS.
EASY CUT TO LENGTH, JUST LIKE A PRO SETUP.
No Flare. No Braze. No Torque Wrench.

No Worry of Installation Problems
Yes, We GUARANTEE Your Work, And The Work Of The Tech.
No HVAC Knowledge Needed.

Trusted by GWIN Techs
Real people. Real techs. Real savings. Don't take our word for it — here's what the GWIN community has to say.
Easy Financing
Apply for easy financing, approval ratings are 99.99%
DIY VS GWIN — SAME PRICE. NOT THE SAME RESULT.
You're probably comparing DIY systems right now…
They all look similar. They all claim savings. But here's what actually happens:
THE PROBLEM WITH DIY HVAC
- Most Techs Will Not Touch It After installing a DIY system, it's hard to find a qualified tech willing to service it. Often, you're left stranded when problems arise.
- Hidden Leaks Go Undetected Without a professional pressure test, refrigerant leaks go unnoticed for months — until your system fails completely.
- Your Warranty Vanishes Most DIY warranties are impossible to claim without professional documentation. You’re at risk if anything goes wrong.
- No Refrigerant Coverage If a leak occurs, refrigerant is lost, and the homeowner is responsible for repair, replacement, and service costs- if you can find tech to fix it.
GWIN "ASSISTED DIY" SOLVES THEM ALL
- GWIN Comes With a Tech A certified GWIN tech inspects, vacuums, and charges your system.
- Zero-Leak Certified Professional pressure test catches every leak before it becomes a problem. Verified and logged.
- Worry-Free Equipment Warranty Equipment receives a full 10 yr parts and compressor warranty. Transferable. No fine print.
- Worry-Free Labor & Refrigerant Warranty Our 1 Year Labor and Refrigerant Warranty covers your installation work, or whoever installs it. If there is an issue with the system after installation, we will send a tech out.
HERE'S THE TRUTH:
You're paying about the same price either way.
So the real question is…
Why would you choose less?
Don't Pay over $12,000 For HVAC
Same comfort. Same professional result. Thousands less.
Choose Your System Type
WHAT HOMEOWNERS SAY
Check our Google reviews, BBB rating, and customer install stories — they all point to the same thing: QUALITY.
WHAT GOOGLE REVIEWS SAY
Self-Install SAVINGS.
PRO RELIABILITY.
Commercial Strength.
That's the GWIN difference. Find the right system for your home today and start saving thousands.
Get real help from real humans who know GWIN systems.
DON'T MAKE THE WRONG CHOICE
Most DIY systems fail for one reason:
That means
GWIN makes sure that never happens
This isn't just about saving money…
It's about doing it right the first time- with the right equipment and the right people on your side.



