Meet the Team Behind Summit Air & Heat
Get to Know Summit Air & Heat
Hi, I'm Lemuel, the owner of Summit Air & Heat!
Owning my own business has always been a dream of mine. I didn't always know exactly what that business would be, but when I found HVAC, I knew I had found my calling. I genuinely love what I do, from figuring out what's wrong with a system to seeing the relief on someone's face when their home is comfortable again.
For years, I prayed to God for the opportunity to have a business of my own. I'm incredibly thankful that He answered those prayers and gave me the chance to turn something I love into a career and a business I can proudly call my own.
Summit Air & Heat is a small, locally owned and owner-operated business. That means when you call, you're dealing directly with me, the person who takes pride in the work being done in your home.
I'm not here to sell you something you don't need. I'm here to listen, explain your options, and help you make the best decision for your home and your family. I believe in honest work, fair pricing, and treating people right.
I'm building this business one customer and one relationship at a time. Every call, every recommendation, and every opportunity to earn someone's trust matters to me.
When you choose Summit Air & Heat, you're not just supporting a local business. You're supporting a dream, and that's something I'll never take for granted.
Thank you for being part of my journey. I look forward to serving you and your family!
Lemuel Hernandez
Owner & HVAC Technician
Summit Air & Heat

Quality Craftsmanship and Genuine Integrity
The standards that guide every repair, installation, and inspection we complete.
Maintaining a comfortable, efficient home requires more than quick part swaps. We follow rigorous technical procedures on every call to verify airflow balance, electrical safety, and system efficiency throughout your living spaces.
Integrity
We do the right thing, even when no one is watching.
Customer First
Your comfort and satisfaction are our top priority.
Quality Work
We use quality products and back them with expert craftsmanship.
Training
We continually improve through education, certifications and hands-on experience.
Our Philosophy in Practice
We believe every job deserves thoughtful planning, honest answers, and careful workmanship. Our approach stays simple: listen first, do the work right, and leave your home better than we found it.

Respect for Your Home
We protect floors, furniture, and living spaces while we work and clean up before we leave.

Smaller Jobs, Full Attention
Handyman work matters just as much as a full remodel, so every repair gets the same focus and care.

Fair, Upfront Estimates
You receive clear pricing before work begins, with no pressure to add services you do not need.

Quality Materials
We choose dependable materials that suit your home, your budget, and the way you use the space.

Dependable Scheduling
We respect your time, keep you informed about progress, and do our best to finish projects when we say we will.

Neighbors Helping Neighbors
Our work across Castle Pines and the south metro area is built on referrals, relationships, and community pride.
Schedule Your Service Today
Book online, call us, or send a quick message, and Lemuel will get back to you promptly.
Real Feedback from Homeowners
At Summit Air & Heat, we pride ourselves on honest work and fair pricing. See what homeowners in Dallas, Collin, Rockwall and Kaufman counties have to say about working with Lemuel.








