When both your air conditioner and furnace start showing their age, replacing them together can feel like a big leap. For many Los Angeles homes with hot summers and cool winter nights, a matched, professionally installed system often delivers higher efficiency, better reliability, and more consistent comfort and it can simplify future maintenance. At Air Plus HVAC, Inc., we design and install complete systems with engineering‑level care, ensuring each component is correctly sized, safely installed, and commissioned to California’s energy and safety standards. Thinking about upgrading both systems? Call 818‑507‑7978 or Schedule a Consultation.
When to Consider Replacing Both Your AC and Furnace
If both units are 10–15+ years old, facing frequent repairs, or struggling to keep up, a dual replacement is often the smarter long‑term move. Mixing old and new equipment can create mismatched airflow and controls, uneven temperatures, and higher utility costs. A matched system lets the blower, coil, refrigerant circuit, thermostat, and safeties work as one, improving comfort while protecting your investment. Always have a licensed HVAC professional inspect aging systems especially if you notice unusual noises, odors, or reduced airflow and avoid opening panels or handling wiring yourself.
Benefits of Replacing Both at the Same Time
- Higher Efficiency & Lower Bills: Matched equipment is designed to run at optimal airflow, coil temperature, and staging, cutting wasted energy.
- Better Comfort & Quieter Operation: Variable‑speed/ECM blowers and properly sized coils deliver smoother temperature control and lower sound levels.
- One Installation, Lower Labor: Coordinating both installs reduces total labor and eliminates duplicate trips and rework.
- Reliability & Safety: New components share compatible controls and venting/electrical requirements, minimizing issues that arise from mixed‑age systems.
- Cleaner Indoor Air: Commissioning includes airflow balancing and filter/IAQ pairing (when requested) to help reduce dust and allergens.
Ready for better comfort and efficiency? Trust Air Plus HVAC, Inc. to handle your full system replacement with precision and care.
Cost Considerations for Dual Replacement
Pricing depends on home size, duct condition, efficiency level, and any venting/line‑set/elec. updates. In Los Angeles, many full replacements fall in the $7,000–$15,000 range, with high‑efficiency options costing more upfront but often lowering bills over time. Replacing both together also helps avoid compatibility issues and can reduce future repair costs by starting fresh with matched components. For clarity, we provide transparent, line‑item proposals and discuss total cost of ownership including projected energy use.
How We Design & Install a Matched System (What to Expect)
In‑Home Evaluation & Load Calculation
We assess square footage, insulation, windows, orientation, and ductwork to right‑size both heating and cooling. Proper sizing prevents short cycling, humidity/comfort swings, and premature wear.
System Selection & Matching Components
We pair the furnace, evaporator coil, and outdoor AC/heat pump for compatible airflow (CFM), coil tonnage, and controls. We’ll review AFUE/SEER2 targets, blower type (ECM/variable‑speed), sound ratings, and thermostat options (including smart controls).
Ductwork, Venting & Line‑Set
We test for leaks and static pressure, seal or modify ducts as needed, verify venting per manufacturer and code, and evaluate refrigerant line‑sets for size/condition (replace if required).
Electrical, Gas & Safety
We confirm circuit protection, wiring, grounding, and gas shutoff/drip leg details. All connections are leak‑tested and code‑compliant.
Startup, Charging & Commissioning
We set blower speeds, measure temperature rise and total external static pressure, verify combustion and manifold gas pressure, and charge the cooling system to manufacturer specs. Final checks include CO and leak testing, control operation, and thermostat calibration.
Homeowner Walkthrough
We review filter sizes, maintenance steps, expected sound levels, and operating tips, and answer questions before we wrap up.
How to Choose the Right Combination
Efficiency: Look for AFUE (furnace) and SEER2/EER2 (AC); higher ratings can reduce energy use and improve comfort. Airflow & Comfort: Variable‑speed furnaces and properly matched coils provide even temperatures and quiet operation. Smart Controls: A compatible thermostat can optimize staging, fan profiles, and energy savings. Duct & IAQ Needs: Address duct leaks or sizing and discuss filters/IAQ add‑ons while the system is open for best results.
Need expert guidance? We’ll compare options side‑by‑side and tailor recommendations to your home and budget.
FAQs: AC and Furnace Replacement in Los Angeles, CA
How much does it cost to replace both AC and furnace?
Most full replacements range $7,000–$15,000. Final pricing depends on efficiency, home size, duct/venting needs, and installation complexity.
Is it cheaper to replace both at the same time?
Often yes. A single mobilization reduces labor, and matched equipment prevents later rework and extra service calls.
How long do systems last?
Most systems last 10–20 years with regular maintenance. Replacing together restores consistency and reduces the chance of unexpected failures.
Will a new HVAC system lower my energy bills?
Modern high‑efficiency, properly sized systems can reduce energy use 20–40%, depending on your home and usage.
How long does installation take?
A combined install typically takes 1–2 days. We complete safety, electrical, gas, and control tests before sign‑off.
Why Los Angeles Homeowners Choose Air Plus HVAC, Inc.
Air Plus HVAC, Inc. brings engineering expertise for accurate design, sizing, and commissioning; delivers solution‑focused recommendations centered on comfort, safety, and efficiency; and is known for exceptional communication from the first call through follow‑up—all provided by local pros serving Los Angeles, Burbank, Pasadena, West LA, Beverly Hills, Woodland Hills, Studio City, Van Nuys, Northridge, and more.
Innovative Comfort, Engineered With Care. Considering a full system upgrade? Call 818‑507‑7978 or Schedule Service now.
818-507-7978