Furnace Installation & Replacement

Furnace Installation Services by Longmont, CO's Leading HVAC Contractor


A handheld tool is held up to a furnace to check how it is functioningInvesting in a new furnace is a great way to improve the energy efficiency of your home or office. Plus, it can save you the hassle of dealing with a furnace emergency in the future.

Today's furnaces and HVAC equipment are far superior to units even 10 years older! With the push towards energy-efficient heating technology, a installing a new furnace can save you thousands throughout its lifetime.

If your home or office furnace is approaching 15 years old, it may be time to explore your options. The home heating installation experts at SAC Mechanical have been Longmont and Boulder, CO's leading furnace installer.

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Our Furnaces

Our team is trained and certified with the top furnace manufacturers in the industry. We will help you make the best choice when it comes to replacing your existing furnace. We carry a variety of furnace brands

Our heating technicians are able to install and replace:

  • Natural gas furnaces
  • Electric furnaces
  • Oil furnaces
  • And more!

Old furnaces can seriously impact your indoor air quality. Replacing your furnace is crucial, not only for heating your home or office, but keeping your air safer for years to come.

No matter what type of heating system you need installed, SAC Mechanical is on-call and ready to keep your home or business warm through the winter. Contact us online or give us a call to learn more about our services and costs.


How Do You Know When You Need a New Furnace?

There are some tell-tale signs that your existing furnace system is on its last legs.

  1. First, if your system is anywhere between 15 and 20 years old, it is most likely not functioning efficiently and you are nearing the end of your furnace's lifespan. Furnaces this old need to be given routine inspections and proper maintenance. But even then, you may be delaying the inevitable. Nobody wants to spend money constant repairs — save your money and get a new furnace!

  2. Secondly, a year-over-year increase or a spike in a single year's heating costs. This indicates that your old furnace's components are not running efficiently and require attention. New furnaces are far more cost effective, saving you money on your energy bills every year.

  3. If your furnace is cycling often or straining to keep your home warm, this is another sign that there is something wrong. With more efficient furnaces now on the market, there's no need to keep a struggling heating system.

  4. Loud noises or increased dust are other indicators that you need a professional inspection to identify the problem.

If you are experiencing any of these symptoms of a broken furnace, it's time to call your local HVAC contractors. At SAC Mechanical, we provide furnace installation and furnace replacement services for residential and commercial customers. 


Why Choose SAC Mechanical for Your New Furnace Installation Needs?

Our team has over 35 years of experience diagnosing and installing energy-efficient furnaces and other home heating equipment. We dedicate ourselves to learning about new furnace technology, providing warmth across Longmont and Boulder, and helping our clients save money.

Why choose SAC Mechanical? Here's the list:

  • We are NATE (North American Technician Excellence) certified.

  • Our technicians are certified and experienced.

  • Our HVAC technicians attend weekly training HVAC training courses, and regular training on all products.

  • We are members of the Denver/Boulder BBB and maintain an A+ rating.

Along with our qualifications when it comes to HVAC system installation and repairs, we also make these promises to you:

  • While in your home, we treat it and your family with respect. We keep our workspace and your home clean and tidy.

  • We guarantee our work and strive for your 100% satisfaction in a job well done.

  • We are transparent and honest. We walk our customers through every step of the furnace selection and installation process so they thoroughly understand the work being completed. If your furnace is only in need of repairs and not a total replacement, our technicians will let you know.

When local home and business owners need a heating solution that fits their needs and budget, we are here for you.

If you aren't sure whether or not you need to entirely replace your furnace, SAC Mechanical also offers furnace repairs and 24/7 emergency repair services.

Contact SAC Mechanical today for all of your furnace installation and/or replacement needs!

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Furnace Installation FAQs

Can I install a furnace myself?

It's best to leave furnace installations and repairs to the professionals! Best case, you spend hours researching how to install your furnace. Worst case, you can seriously injure yourself or your family trying to DIY your furnace installation. Especially when it comes to gas furnaces, trying to save money by doing it yourself can be downright dangerous. Faulty installation can lead to toxic and/or combustible gas leaks, and dealing with a gas line without proper tools or training is never advised.

Our technicians have spent years learning how to safely install furnaces of all varieties: gas, natural gas, electric, oil, and more. Hiring an HVAC contractor saves you time, stress, potential danger, and money (in case you do even more damage trying to installing a new furnace yourself).

How long does it take to replace a furnace?

On average, furnace replacement services take less than a day. Our installations typically only take four to eight hours. There are several factors that this depends on: the type and size of the furnace, the square footage of your home or office, and if something needs to be done about existing ductwork.

We guarantee our work will be done properly and have your furnace up and functioning as quickly as possible!

When should I replace my furnace?

There are a number of factors to consider when it comes to furnace replacement. Firstly, if your furnace is 10-15 years old, it may be time to look into purchasing a newer, more efficient model. But there are other factors as well! How well is your furnace heating your home? How often does it require repair? How much does it cost to heat your home? If you find that you are unhappy with your old furnace, SAC Mechanical is available for the installation of your new one!