Peace of MindHeating & CoolingYou Can Trust.
BBB Accredited with an A rating. Licensed, insured, EPA Refrigerant Certified, and locally owned with over 30 years serving Madison and Dane County.
Complete HVAC Services
Furnaces, air conditioners, boilers, air filtration systems, and smart thermostats — we repair and replace it all across Madison and Dane County.
Heating & Furnace
Furnace repair, replacement & installation across Madison and surrounding communities. We service all makes and models with affordable pricing and lifetime workmanship warranties.
Learn MoreAir Conditioning
AC service, repair & installation for all makes and models. We specialize in the refrigeration cycle — from compressor to evaporator coil — keeping you cool all summer long.
Learn MoreIndoor Air Quality
MERV-rated filtration systems, air purifiers & humidifiers. We help you choose the right filter — MERV 8 for dust, MERV 10 for pet owners, MERV 13 for allergy & asthma sufferers.
Learn MoreEmergency HVAC
No overtime rates — ever. We provide emergency HVAC service Saturdays and Sundays 6am–8pm because you can't control when a system breaks down.
Learn MoreNo Upsells.No Surprises.Just Honest HVAC.
Founded by a lifelong Madison resident with over 30 years in the HVAC industry, Leading Edge was built on one principle: “Truth in Business.”
We will never attempt to sell you a product or service you don't need. Our foundation is principled practice, professional service, and affordable pricing for every neighbor in and around the Madison area.
We realize you cannot control when a system may break down, and do not feel it is fair to penalize a homeowner who experiences a breakdown during off-hours. That's why we never charge overtime rates — and we accept all major credit cards.
BBB Accredited — A Rating
Better Business Bureau Accredited with an A rating. We hold ourselves to the highest standards of business ethics and customer care.
Licensed, Insured & EPA Certified
Fully licensed, insured, and EPA Refrigerant Certified. You're in safe, qualified hands on every single job.
Affordable & Accepts Major Credit Cards
We provide furnace and AC services affordably and accept all major credit cards for your convenience.
Lifetime Workmanship Warranty
We stand behind every job with a lifetime warranty on our workmanship. If something isn't right, we make it right — period.
No Overtime Rates
We don't charge overtime rates. We know you can't control when a system breaks down, so we don't penalize you for off-hours calls.
Locally Owned — 30+ Years
Our owner was born and raised in Madison and is very loyal to our residents. Over 30 years of trusted HVAC service in Dane County.
Comfort in Three Simple Steps
Getting your HVAC system fixed shouldn't be complicated. Here's exactly what to expect when you call Leading Edge.
Book Appointment
Call us or submit a free estimate request online. We'll confirm your appointment within the hour — no waiting, no runaround.
Diagnose & Quote
Our NATE-certified technician arrives on time, performs a thorough diagnosis, and gives you a clear flat-rate quote — before any work begins.
Fix & Optimize Comfort
We complete the repair or installation with precision, clean up completely, and walk you through everything we did. Your comfort is guaranteed.
Real Families.Real Comfort.Real Results.
“Our furnace died on the coldest night of the year. Leading Edge had a technician at our door within two hours. He was professional, explained everything clearly, and had us warm again before midnight. Absolutely incredible service.
Proudly Serving Madison& Surrounding Areas
We provide fast, reliable HVAC repair and installation across Dane County. Same-day service available in most areas — because your comfort can't wait.
Peace of MindStarts With a Call.
BBB Accredited with an A rating. No overtime rates. Major credit cards accepted. Lifetime workmanship warranty. Just honest HVAC service from Madison's most trusted locally owned team.
Parts of a Central AC System
A typical central air conditioning system is a two-part or split system. Understanding the components helps you make informed decisions about service and replacement.
Outdoor Unit
Contains the condenser coil, compressor, electrical components, and a fan. This is the large unit outside your home.
Evaporator Coil
Usually installed on top of the gas furnace inside the home. This is where refrigerant absorbs heat from your indoor air.
Refrigeration Lines
A series of pipes connecting the inside and outside equipment, carrying refrigerant through the closed-loop system.
Refrigerant
The substance in the refrigeration lines that circulates through the indoor and outdoor units, transferring heat out of your home.
Ductwork
Ducts serve as air tunnels to the various spaces inside your home, distributing cooled or heated air throughout every room.
Thermostat
The control system that lets you set your desired temperature. We install NEST and Ecobee smart thermostats for maximum efficiency.
Frequently Asked Questions
Quick, honest answers to the most common HVAC questions from Madison homeowners.
MERV Rating Quick Reference
Established by ASHRAE — the worldwide standard for air filter quality
Contact Us
Have a question or ready to schedule service? Reach out — we're here to help Madison homeowners stay comfortable year-round.
Hours of Operation
- Monday – Thursday6:00 am – 6:00 pm
- Friday7:00 am – 5:30 pm
- Saturday6:00 am – 8:00 pmEmergency Service
- Sunday6:00 am – 8:00 pmEmergency Service
Send Us a Message
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