Furnace Installation Services In Des Moines & Waukee

Dorrian Heating & Cooling offers quality furnace installation and replacement throughout Des Moines, Waukee and central Iowa. Whether your system is old, inefficient or beyond repair, our licensed technicians will guide you through selecting the right new furnace for your home, complete the installation with precision and care, and test every function to ensure safe, reliable heating in your home all winter long.

How To Know When It’s Time To Replace Your Furnace

Knowing when to stop repairing an old furnace and start planning for a replacement is key to maintaining reliable, efficient heating in your home. While some issues can be resolved with routine service, others point to deeper system failure or declining performance. Here are five clear signs that it may be time to consider installing a new furnace:

1. Your furnace is more than 15 to 20 years old
   Most furnaces have a lifespan of around two decades, even with regular maintenance. As systems age, they become less efficient, more prone to breakdowns and increasingly expensive to operate. Older units may also lack modern safety features and energy-saving technologies.
2. You’ve noticed rising energy bills
   If your utility costs keep increasing despite no change in usage, your furnace may be losing efficiency. Worn-out parts, declining heat output or short cycling can all force the system to work harder and consume more energy.
3. You’re facing frequent or expensive repairs
   If you’ve called for furnace repairs more than once in the last couple of seasons, or if the estimated cost of a repair is close to 50% of the price of a new unit, replacement is likely the more cost-effective long-term solution.
4. There are comfort issues throughout your home
   Uneven heating, cold spots, poor airflow or excess noise may indicate that your system is no longer capable of heating your home consistently. These problems are often symptoms of aging equipment or undersized systems.
5. The air in your home feels dry, dusty, or stale
   Older furnaces may struggle to maintain indoor air quality, especially if they lack advanced filtration or humidification controls. These conditions can affect both your comfort and your health during the winter months.

Our New Furnace Installation Process

At Dorrian Heating & Cooling, we understand that a properly installed furnace is the foundation of long-term comfort, energy efficiency and system reliability. Improper installation is one of the leading causes of frequent furnace issues, and we are committed to getting the job done right the first time. Our installation process is structured, thorough and tailored to each home or business we serve. Here’s what you can expect:

1. In-Depth System Assessment
   Every installation begins with a careful evaluation of your home or commercial space. Our experienced HVAC professionals will assess key factors such as square footage, insulation quality, existing ductwork, layout and energy demands. We also take into account your budget and heating preferences to determine the most suitable furnace type and capacity. Choosing the correct size and efficiency level upfront is critical to avoiding future performance problems or unnecessary repairs.
2. Selecting A New High-Efficiency Furnace
   An essential part of the installation process is selecting a furnace that matches your needs. Heating problems often arise when the wrong size or type of unit is installed, leading to inefficiency or premature failure. We take a customized approach based on several key factors:
   • Home or building size
   • Layout and number of zones
   • Existing ductwork
   • Insulation levels
   • Desired energy efficiency
   • Budget and long-term savings goals
   We often recommend ENERGY STAR® rated systems with high Annual Fuel Utilization Efficiency (AFUE) ratings for optimal performance and lower energy costs. For homeowners, we focus on comfort and energy savings. For businesses, we typically install commercial-grade units built for consistent heating in larger spaces.
3. Safe Removal of Your Existing Furnace
   If you’re replacing an old or malfunctioning unit, we’ll carefully disconnect and remove it before installing your new system. Our team ensures that all gas lines, electrical connections and ventilation components are safely disengaged and disposed of according to local safety codes and environmental standards.
4. Expert Furnace Installation
   Once the space is prepared, we install the new furnace according to manufacturer specifications and industry best practices. This includes securely connecting gas lines, electrical wiring and ductwork, as well as ensuring all joints and seals are tight and air-leak free. Our team pays special attention to airflow optimization and system calibration to promote consistent, energy-efficient heating.
5. Post-Installation Testing and Inspection
   After installation is complete, we don’t just pack up and leave. Our technicians conduct a full performance check to verify proper operation. We test ignition systems, airflow, thermostat communication and safety controls to ensure everything is functioning correctly and efficiently. If your system includes advanced features or smart technology, we’ll test and fine-tune those as well.
6. Homeowner Walkthrough and Maintenance Guidance
   We believe in empowering homeowners to get the most from their new systems. After testing, we walk you through your furnace’s features, thermostat settings, filter replacement schedule and basic maintenance tips. Our team is always available to answer questions and provide support long after the installation is complete.

How Long Does It Take To Install A Furnace?

Installation time for a furnace ranges from 4-8 hours, depending on system complexity, ductwork modifications or fuel conversion needs. Most furnace replacements are completed within a single workday. If your installation is more involved, such as switching from gas to electric, or upgrading the duct layout, it may require additional time to ensure a precise and safe installation.

How Much Does A Furnace Replacement Cost?

Furnace replacement costs can vary depending on your home's size, the system's efficiency and installation requirements. While the upfront investment is important, long-term protection and performance are just as critical. That’s why every new Ruud high-efficiency furnace and A/C system from Dorrian Heating & Cooling comes with our exclusive 10 year No Extra Cost warranty. This comprehensive warranty includes annual maintenance, parts, labor, service repairs and remote system monitoring—all at no cost for 10 years. With this level of coverage, you can enjoy complete peace of mind, knowing your new system is protected and your comfort is secure for the next decade.

Stay Warm All Winter With High-Efficiency Furnace Installation From Dorrian Heating & Cooling

When freezing winter temps inevitably hit Iowa, you need a furnace that’s reliable, efficient and built to last. At Dorrian Heating & Cooling, we make sure every installation delivers long-term comfort, energy savings and peace of mind. From helping you choose the right high-efficiency system to completing a flawless installation and providing unmatched warranty coverage, we’re committed to exceeding your expectations at every step. If your current furnace is struggling to keep up or costing you more than it should, contact our team today to schedule a replacement consultation.