8.00 AM - 8.00 PM daily
Licensed. Experienced. Local.
At Smart Lion Heating & Cooling, we’re more than just certified HVAC technicians—we’re part of the community.
We bring years of professional experience, high standards, and an honest approach to every job. Whether it’s a quick repair or a full system replacement.
We bring years of professional experience, high standards, and an honest approach to every job. Whether it’s a quick repair or a full system replacement.
Our services
We specialize in both residential HVAC repair and full system installation across the Douglas County area.
Whether you’re upgrading an old system or fixing a unit that won’t turn on, we have the tools, experience, and training to help.
Whether you’re upgrading an old system or fixing a unit that won’t turn on, we have the tools, experience, and training to help.
When You Need Repair or Replacement of AC and Furnance Split System
🔧Repair is recommended if:
🔧Repair is recommended if:
- The system is under 10 years old
- There are minor issues (e.g., odd noises, weak airflow, thermostat problems)
- It hasn’t had regular maintenance recently
- The system is over 10–15 years old
- Frequent or costly breakdowns occur
- Energy bills are rising despite normal usage
- Home comfort is inconsistent (uneven heating/cooling)
- Your unit uses outdated refrigerant (like R-22)
When to Repair or Replace Your Electric Furnace
🔧 Repair is the right choice when:
🔧 Repair is the right choice when:
- The unit is under 10 years old
- It stops working due to a single, identifiable issue (e.g., heating element, thermostat)
- There are no major safety concerns
- It’s been a while since the last maintenance check
- The furnace is 12–20+ years old
- You face frequent service calls or expensive part failures
- Your home isn’t warming evenly or power bills keep rising
- Safety is at risk (burning smell, overheating, tripped breakers)
- You want a more energy-efficient and environmentally friendly model
When to Repair or Replace Your Gas Furnace
🔧 Choose repair if:
🔧 Choose repair if:
- The unit is under 12 years old
- You notice small issues like inconsistent heating, odd noises, or short cycling
- The furnace hasn’t had a tune-up in the past year
- You detect mild gas smell or pilot issues (we act fast and safely)
- The furnace is 15–20+ years old
- You’ve had multiple repairs in the past 1–2 seasons
- There’s a cracked heat exchanger (serious safety hazard)
- The furnace struggles to heat your home evenly
- Energy bills are increasing even with moderate usage
When to Repair or Replace Your Heat Pump + Air Handler
🔧 Repair makes sense if:
🔧 Repair makes sense if:
- The system is under 10–12 years old
- It’s underperforming due to a single issue (thermostat, capacitor, coil)
- The airflow is weak, but there’s no major mechanical damage
- You hear strange noises, but the system still runs
- The system is over 12–15 years old
- You’ve had multiple service calls or rising repair costs
- Home temperatures are uneven, or humidity is uncontrolled
- Energy bills have noticeably increased
- The refrigerant used (e.g., R-22) is outdated and hard to replace
- You want to upgrade to a high-efficiency, eco-friendly model
When to Repair or Replace Your Heat Pump + Furnace Split System
🔧 Repair is a good option when:
🔧 Repair is a good option when:
- The system is under 12 years old
- One component (e.g., furnace or heat pump) has a minor issue
- There's a switch-over or thermostat problem but no major mechanical damage
- System performance is uneven, but airflow and safety are intact
- The system is 15–20+ years old
- The heat pump or furnace requires frequent, expensive repairs
- There's a cracked heat exchanger, major compressor failure, or obsolete refrigerant
- Energy efficiency has dropped and utility bills keep rising
- You want to upgrade to a newer hybrid system for better performance and cost savings
When to Repair or Replace Your Mini Split / Ductless System
🔧Choose repair when:
🔧Choose repair when:
- The system is under 10–12 years old
- You notice issues like weak airflow, strange noises, or water leaks
- Remote or sensor isn’t responding, but the system still runs
- Error codes appear, but the compressor is still functional
- The system is 12–15+ years old and losing efficiency
- Repairs are becoming frequent or too expensive
- Refrigerant leaks are severe or use outdated types (like R-22)
- Some indoor heads stop working while others are fine (costly to fix or mismatch)
- You want a quieter, more energy-efficient model with smart features
Strange sounds? Weak airflow? No cool/heat?
We troubleshoot, repair, and install all major Heating & Cooling systems.
Why choose us
- Clean, Professional Workmanship
- Personalized Service — We Treat You Like a Neighbor
- No Hidden Fees, Ever
- Honest Assessments. No Pressure.
Our clients' reviews
- We had an emergency with our furnace during a cold snap in Castle Rock, and Smart Lion Heating & Cooling came through fast.
The technician arrived exactly when he said he would, explained everything in simple terms, and had the part replaced the same day.
No hidden fees, no pressure — just honest, reliable work. It’s refreshing to deal with a company that truly values professionalism and local service. Highly recommended for anyone in Douglas County!Steven - We hired Smart Lion for a full heat pump and air handler split system installation in Highlands Ranch.
The whole process was smooth — from the first call to the final test. The crew was polite, clean, and clearly experienced. What impressed us most was the attention to detail and care they took with our home.
You can tell this is a local business that takes pride in their work. Will definitely call again for future HVAC needs!Ronald
720 964 2178
support@smartlionhvac.com
support@smartlionhvac.com
We work 7 days a week from 8 am to 8 pm.
