"I had Lou's HVAC install a new energy-efficient AC unit. The consultation process was smooth, and the installation was quick. I've noticed a drop in my energy bills already!"
Air Conditioning Replacement & Installation in the Denver Metro
Replacing an AC unit is one of the bigger investments a Denver-metro homeowner makes. You deserve straight talk about what you actually need, not what generates the biggest commission. Lou's Heating & Cooling is an Authorized Carrier Dealer, which means we install one of the most established and reliable HVAC brands on the market and back it with a 10-year extended warranty. We size every system correctly for Denver's altitude and climate, something cookie-cutter quotes often get wrong.
Signs You Need AC Installation Service
- Your AC system is 15+ years old
- Repair costs are approaching or exceeding 50% of replacement cost
- The system uses R-22 refrigerant (phased out in 2020, now expensive to service)
- Your home has persistent hot and cold spots even after repairs
- Energy bills keep climbing year over year
- The system needs frequent repairs (more than once per season)
- Humidity control is poor (Denver's dry climate can mask this)
What to Expect
- Free in-home estimate
We visit your home, measure the space, evaluate your ductwork, and do a proper load calculation, not just a guess based on square footage. Denver's altitude changes sizing requirements.
- Equipment recommendation
We recommend the right size and efficiency level for your home and budget. As an Authorized Carrier Dealer, we can access a full range of equipment with competitive warranties.
- Installation day
Most single-system replacements are completed in one day. We remove the old equipment, install the new system, and test everything before we leave.
- Walkthrough
We show you how the new system works, go over the thermostat settings, and answer all your questions.
- Warranty registration
We register your 10-year extended warranty so you're protected from day one.
Our Commitment to You
Flat Rate Pricing
You get a price before we start any work. No hourly surprises, no hidden fees.
Free Estimates
Free in-home estimates on all installations. No obligation to move forward.
10-Year Warranty (New Equipment)
All new installations include a 10-year extended parts warranty plus our 5-year workmanship warranty.
24/7 Emergency Service
HVAC doesn't break on schedule. We answer calls around the clock.
What Our Customers Say
AC Installation FAQs
How do I know if I need a new AC vs. just a repair?
The 50% rule: if a repair costs more than half what a new unit would cost, replacement usually wins. Age matters too — units 12+ years old needing major repairs are typically better replaced than fixed.
How long does AC installation take?
A standard same-system replacement is one day, typically 4-8 hours. Complex installs (new ductwork, multi-zone) may need two days. You get a realistic timeframe in the written estimate.
What size AC do I need for my home?
Proper sizing depends on more than square footage. A Manual J load calculation accounts for insulation, windows, ceiling height, and Denver's altitude (which derates capacity ~15%). Anyone sizing only by square footage is doing it wrong.
Are there rebates for high-efficiency AC units in Colorado?
Yes. Xcel Energy offers rebates for qualifying high-efficiency AC, typically $200-$600 and varying year-to-year. The federal IRA also offers tax credits on qualifying heat pumps. Verify current amounts at xcelenergy.com before purchase.
Related Services
AC Repair
Fast diagnosis and honest repair for any AC system in the Denver metro.
Learn More
Maintenance
Seasonal tune-ups that prevent breakdowns and extend equipment life.
Learn More