How Much Does a New Furnace Cost?

Thinking about upgrading your furnace? You’re probably wondering what the furnace installation cost Denver homeowners can expect—and what factors truly drive those numbers. It’s an important decision. A well-chosen, professionally installed furnace can lower energy bills, improve comfort, and provide dependable heat for years to come.

Modern systems also bring efficiency advantages that pay off long-term. While the initial investment matters, performance, reliability, and operating costs make all the difference. That’s where expert guidance helps.

At Done! Plumbing, Heating, Cooling & Electric, we make furnace replacement simple and transparent. From equipment selection to installation and maintenance, our team walks you through every cost consideration to help you make an informed choice.

Choosing the Right Furnace

Finding the right furnace is the first step toward a smart investment. The goal isn’t just to stay warm, it’s to ensure efficiency, reliability, and value season after season.

Our certified HVAC experts evaluate your home’s fuel type, layout, and energy goals to recommend the ideal system. Whether you’re considering a gas, electric, or oil furnace, we make sure it’s properly sized and installed for lasting performance.

Every Done! installation comes backed by our  Home Comfort Guarantee, trusted brands, and transparent pricing, so you can feel confident before you even see the final quote.

Furnace Installation Costs

As you explore your options, it’s helpful to understand how pricing works. The total cost of a furnace depends on the fuel type, size, and efficiency rating—each playing a role in your system’s performance and long-term savings. While a lower upfront price might seem appealing, investing in energy-efficient equipment with dependable features and strong warranties often pays off over time.

At Done, we guide you through these choices with clear, upfront recommendations, helping you balance cost, efficiency, and comfort for the best overall value.

How Much is a New Furnace?

The expense of installing a furnace extends beyond the purchase price of the unit. Factors such as your home’s design, existing systems, and the complexity of installation all contribute to the overall cost. We provide transparent evaluations to ensure precise estimates.

Home size and layout influences:

Larger homes often require greater heating capacity due to their square footage and multiple levels. Homes with poor insulation or drafty windows may need more robust systems, while inefficient ductwork might call for design modifications to enhance performance.

Home Size / Capacity Recommended Furnace Size (BTU) Notes
Small to mid-sized homes 40,000–80,000 BTU Suitable for most single-story or compact homes.
Larger homes 90,000–120,000 BTU Needed for bigger homes or those with high ceilings.
Multi-level / open layouts Varies May require advanced airflow features for even heating.

Fuel type and local costs impact expenses:

Gas is economical in areas where it’s available, with modern gas furnaces providing dependable service. Electric systems are easy to install and suitable for milder climates, though costs vary with electricity rates. Oil is an option where gas is unavailable, but it necessitates proper tank maintenance.

Furnace Type Typical Installation Notes Estimated Cost Range
Gas Furnace Most common in Denver. Pricing varies based on efficiency (80–99% AFUE), venting requirements, and existing gas line condition. High-efficiency models may need new PVC flues or condensate drains. $8,000–$14,000
Electric Furnace Easier to install if the home’s electrical panel can support it. Best for smaller homes or where gas lines aren’t available, though higher electricity rates can increase long-term costs. $7,000–$12,000
Oil Furnace Less common in the Denver area. Requires an oil tank, venting, and regular maintenance. Installations are typically more complex and costly. $9,000–$15,000+

High-efficiency models demand specialized venting and flues, while electrical upgrades might require new circuits or panel improvements. Limited installation spaces can lead to additional labor, and obtaining necessary permits and inspections is crucial for safety compliance.

Efficiency Level (AFUE) Description Upfront Cost Impact
80–85% (Standard Efficiency) Converts 80–85% of fuel into heat. Lower
90–99% (High Efficiency) Converts up to 99% of fuel into heat. Higher

How Much is a Furnace Replacement?

A new furnace is more than just a piece of equipment—it’s an investment in your home’s comfort and efficiency. At Done Plumbing, Heating, Cooling & Electric, we handle every detail with precision and transparency to help you get the most value for your money.

Expert Installation & Setup

Our licensed technicians install every furnace to code and optimize it for peak efficiency. Most replacements are completed in a single day, and we take care of all permits and inspections—so you can relax knowing everything’s done right.

Efficiency Upgrades & Airflow Improvements

Proper ductwork and balanced airflow make all the difference. We seal leaks, fine-tune your system, and can add upgrades like smart thermostats, air purifiers, or humidifiers to boost performance and comfort.

Protection & Long-Term Savings

Every installation is backed by our Home Comfort Guarantee and strong manufacturer warranties. Join our Care Club for regular maintenance, priority scheduling, and exclusive savings that keep your system running efficiently year after year.

Simple Steps for Lasting Results

  • Choose the right size furnace to avoid wasted energy.
  • Keep filters clean to protect airflow.
  • Schedule annual tune-ups to maintain efficiency.
  • Use smart controls to lower monthly costs.

With Done, you get expert craftsmanship, honest pricing, and a system built to last—no hidden fees, no surprises, just dependable warmth when you need it most.

Financing Options for Your New Furnace

Replacing your furnace is a big step toward a warmer, more efficient home—and with flexible financing, you don’t have to put it off. At Done Plumbing, Heating, Cooling & Electric, we make it easy to upgrade now and pay over time, so you can get the right system without straining your budget.

Our financing options are designed for real homeowners and real budgets:

  • Low monthly payments: Spread the cost of your new furnace with simple, fixed-rate plans.
  • Promotional terms: Ask about special offers like reduced or deferred interest.
  • Bundle savings: Combine your furnace install with upgrades like smart thermostats or air quality add-ons.

Most homeowners qualify quickly, with straightforward applications and flexible terms. You’ll always get clear details—no surprises, no hidden fees.

Financing also lets you choose what’s best for your home right now:

  • Upgrade to a high-efficiency system that saves energy (and money) over time.
  • Keep your cash flow steady for other household projects.
  • Enjoy immediate comfort while protecting your long-term investment.

Our experts will guide you through all available options to find a plan tailored to your requirements—because at Done, your comfort is our priority.

Ready to Upgrade? See How Much a New Furnace Really Costs in Denver

Your furnace installation cost depends on several factors—fuel type, size, efficiency, and the details of your home. While high-efficiency models can cost more upfront, they often save you money for years through lower energy bills and better performance.

At Done Plumbing, Heating, Cooling & Electric, we make the process simple and transparent. Our experts evaluate your home, explain your options, and give you a clear, no-surprise estimate before any work begins.

Call us now to get started with your furnace estimate and find out exactly how much a new furnace costs in Denver—with expert guidance, upfront pricing, and guaranteed quality from Done.