Full HVAC System Replacement Services in Boise, ID
Fast, accurate electrical diagnostics and dependable repairs to keep your home safe, powered, and running smoothly.
Upgrade to Modern High-Efficiency Heating & Cooling
Furnace King Heating & Cooling delivers complete system replacement solutions for homeowners and businesses across Boise and the Treasure Valley. When your aging furnace or air conditioner reaches the end of its operational lifespan or requires frequent costly repairs, upgrading to a modern system restores home comfort and energy efficiency. As an authorized Lennox dealer, our licensed team ensures accurate heat load sizing, clean equipment removal, and flawless installation tailored to your building's exact needs.
Equipment We Replace & Upgrade
We replace outdated, inefficient heating and air conditioning units with advanced climate control systems designed for long-term dependability and maximum energy savings. Our replacement offerings include:
High-Efficiency Gas Furnaces
We perform a full diagnostic assessment of all mechanical parts, electrical connections, and operating controls.
Central Air Conditioner Upgrades
We replace aging AC units with high-SEER central cooling systems designed to handle hot summer temperatures quietly and efficiently.
High-Performance Heat Pumps
We install versatile heat pump replacements that provide both efficient electric heating in winter and high-efficiency cooling during summer months.
Complete Dual-Fuel HVAC Systems
We replace standalone units with hybrid systems combining an electric heat pump with a gas furnace for optimal heating efficiency in all temperatures.
Outdated Air Handler Replacements
We install new indoor air handlers equipped with electronically commutated motors (ECM) to ensure balanced airflow across all home zones.
System Matched Evaporator Coils
We replace old indoor coils with matched high-efficiency evaporator units to maximize cooling transfer and prevent refrigerant leaks.
Why Choose Furnace King Heating & Cooling
Honest Service. Quality Work. Lasting Safety.
Local Business
Licensed Service
Honest Work
Responsive Service
Experienced Team
Fair Pricing
Quality Parts
Complete Care
Common Signs
To Consider When Replacing Your HVAC System
System Age Exceeding 12 to 15 Years
Frequent & Costly Repair Bills
Rising Monthly Energy Utility Bills
Inconsistent Temperature Distribution
Obsolete R-22 Refrigerant Usage
Major Mechanical Component Failure
HVAC SAFETY
How Do You Choose the Right Replacement System?
Selecting the ideal replacement system involves balancing your home's square footage, energy efficiency goals, and long-term operating budget. Rather than simply replacing your existing unit with the same size, our team performs a complete load calculation to ensure your new system is properly proportioned. Choosing properly sized, high-efficiency equipment from trusted manufacturers like Lennox prevents short-cycling, reduces monthly utility bills, and provides consistent indoor comfort for years to come.
SERVICE AREAS
HVAC Repair Service Areas Across the Treasure Valley
Boise
Meridian
Nampa
Caldwell
Eagle
Kuna
Star
Garden City
Middleton
Emmett
Frequently Asked Questions About System Replacement
How long does a full HVAC system replacement take to complete?
Most residential heating and cooling replacements are completed within a single day, typically taking between 4 to 8 hours. Complex installations involving extensive ductwork modifications or custom sheet metal transitions may take additional time.
How do I know if it is time to replace my furnace or air conditioner?
If your equipment is over 12 years old, requires frequent repairs, causes high energy bills, or struggles to maintain comfortable indoor temperatures, replacement is recommended. Upgrading prevents unexpected winter breakdowns and reduces overall energy costs.
Does preventative maintenance fulfill manufacturer warranty requirements?
Most major HVAC manufacturers, including Lennox, require annual professional maintenance records to keep equipment warranties active. Skipping routine servicing can void coverage on major functional parts like compressors and heat exchangers.
What equipment brands do you install during a replacement?
As an authorized Lennox dealer, we install high-efficiency Lennox furnaces, air conditioners, and heat pumps built for exceptional durability. We also service and install other industry-standard equipment to fit your specific home setup and budget requirements.
Are financing options available for new HVAC system replacements?
Yes, we partner with Wisetack to offer flexible financing options that allow you to spread the cost of a new heating and cooling system into manageable monthly payments. This helps you upgrade to high-efficiency equipment without financial strain.
Does a new HVAC system replacement come with warranty coverage?
Yes, new systems include manufacturer warranties covering major components, such as compressors and heat exchangers, for up to 10 years. In addition, Furnace King provides a comprehensive workmanship guarantee on all installation labor.