Our Services
Heating & Cooling Services for Denver-Metro Homes and Businesses
Installation, repair, maintenance, and emergency service for furnaces, AC systems, heat pumps, and mini-splits, plus commercial HVAC and refrigeration.
What We Do
Every Service We Offer
One local team for the whole system. Pick a service to learn more, or call and tell us what's going on.
Commercial HVAC & Refrigeration
Commercial HVAC service, rooftop equipment maintenance, air handlers, refrigeration, and rough-in installation for Denver-metro buildings.
Indoor Air Quality
UV air purification installation, mechanical-room duct cleaning, and HVAC system sanitizing for Denver-metro homes and businesses.
Refrigerant, Vacuum & Leak Testing
Refrigerant leak testing, vacuum, repair, and recharge for AC systems, heat pumps, and refrigeration equipment across the Denver metro.
Heat Pumps
Heat pump installation, repair, and service for Denver-metro homes. One system for heating and cooling, sized in person. Call (720) 701-3810.
Emergency HVAC Service
No heat or no AC? Call K&G Builders HVAC at (720) 701-3810 for urgent heating, cooling, and refrigeration service across the Denver metro.
HVAC Maintenance & Tune-Ups
Furnace and AC tune-ups, condenser and evaporator coil cleaning, and filter changes for Denver-metro homes and businesses. Call (720) 701-3810.
Mini-Splits & Ductless Systems
Wall-mounted and ceiling ductless mini-split installation and repair for Denver-metro homes, additions, and businesses. Call (720) 701-3810.
Heating & AC Repair
Furnace, AC, heat pump, and thermostat repair across the Denver metro. Step-by-step diagnosis, clear pricing, and usually a same-day response.
Furnace & Heating Installation
New furnaces and heating systems for Colorado winters, sized in person and installed clean. Options at every price point across the Denver metro.
AC Installation & Replacement
New central air sized for your home and installed clean. In-home walkthrough, options in writing, and clear pricing across the Denver metro.
How We Work
Diagnosis First, Then Options
Every service call starts the same way. We come to your home or building, look at the equipment and the space it serves, and test before we guess. Gabe likes to start with the simple things, like the capacitor, the relay, and the wiring, and work up from there until the real cause shows itself. Then we walk you through what we found.
If the fix is a repair, you’ll get a clear price for the repair. If the system is at the end of its life, you’ll get more than one replacement option, from a solid standard system to a higher-end choice, and the decision is yours. Everything is written up on our tablet, and you get a copy of the contract by email.
Residential and Commercial.
Homes, rentals, offices, and rooftop equipment.
Major brands.
Carrier, Amana, Bosch, Daikin, Goodman, Mitsubishi Electric, and more.
Bilingual service.
English and Spanish.
Not Sure What You Need?
That’s what the visit is for. Call (720) 701-3810 and describe what the system is doing. We’ll take it from there.
EPA Certified
Refrigerant Handling
OSHA Certified
Safety-Trained Crew
Residential & Commercial
Homes, Offices, Rooftops
Same-Day Response
On Most Calls
Hablamos Español
English & Spanish
Our Process
From First Call to Finished Job
The same four steps, whatever the service.
Call or Request a Quote.
Call (720) 701-3810 or send the form. We'll set a time to come out.
In-Home Walkthrough.
We look at the size of your home, the area that needs service, and the system you have now.
Options and a Clear Price.
You get more than one option, shown on our tablet, with a written contract you can sign on the spot or by email.
Scheduled Fast.
Once you choose, we check equipment with our supplier. When it's in stock, many jobs can start the next day.
Areas We Serve
Based in Thornton, working across the Denver metro and the Front Range. Don't see your city? Call and ask.
Our Work
Recent HVAC Projects
Recent work by our own team, from commercial mechanical rooms to ductless mini-splits.
Reviews
What Customers Say About Our Work
Real feedback from homeowners and businesses we've worked with.
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FAQ
Service Questions
Quick answers about how we work. Call if yours isn't here.
What areas do you serve?
We’re based in Thornton and serve the Denver metro, including Denver, Aurora, Arvada, Westminster, Golden, and Castle Rock, plus Fort Collins and Loveland to the north. Call if you’re not sure.
Do you offer free quotes?
Quotes for new installations are free. For repairs and diagnostic visits there is a trip fee, which we credit toward the job if you hire us.
Do you work on homes or businesses?
Both. Most of our work is residential, and we also handle commercial service, rooftop equipment, and rough-in installation for commercial buildings.
Why do you want to see my home before quoting?
Because the right system depends on your home: its size, the area that needs heating or cooling, and what’s already there. A quote over the phone is a guess. We’d rather get it right.
Do you handle emergencies?
Yes. If your heat or AC is out, call (720) 701-3810 and we’ll get someone out as fast as we can.
What brands do you work with?
We work with major equipment brands including Carrier, Amana, Bosch, Daikin, Goodman, and Mitsubishi Electric.
Get Started
Tell Us What Your System Is Doing
Send a request or call, and we'll set a time to come take a look.