Mainstream is here for all your furnace installation needs.

If you’re looking to upgrade the heating system in your home with a new furnace or replace a furnace that’s beyond repair, Mainstream has the HVAC experts you need!

In eastern Washington and northern Idaho, your home heating system is extremely important. When you call us for a heating replacement consultation, our installation technicians will work with you to find the perfect system for your needs and budget.

Our technicians are always ready to answer the call to help you and your home. We have a 20+ year reputation in Spokane Valley, and we’ve got over 1000 5-star reviews to back that reputation up.

Why our customers choose Mainstream to replace their home’s heating system:

Upfront pricing - you’ll never pay more than you’re quoted

Expert advice from professional, licensed & certified technicians

We'll only sell you what you need

We stock enough parts in our trucks to do 93% of repairs on the spot

We stand by all recommended services

Flexible scheduling, ask about same-day service!

Still have questions? Contact us for all your Furnace Installation questions!

How Much Does a New Furnace Installation Cost In WA?

Your furnace is a large, complex unit that will deliver years of exceptional heating to your entire home. It is important that it's installed correctly, otherwise this costly investment can go to waste.

Multiple factors determine the overall cost of a new furnace installation, but the type of furnace you choose has the largest impact. Our expert HVAC technicians at Mainstream Electric, Heating, Cooling, & Plumbing will help you find the perfect furnace to install that's best for your Spokane Valley, Washington home.

The 3 main types of new furnace installations available are:

Gas Furnace Installation & Replacement

Gas furnaces are the most commonly installed furnaces in Spokane Valley homes.

More efficient than installed oil furnaces, but less than electric, gas furnaces are typically the cheapest to run, as they use natural gas as an energy source. With this, your home runs the risk of creating a buildup of carbon monoxide, and your furnace will require on-going maintenance throughout its life.

Gas furnaces are, however, the least expensive model to run using natural gas, making them a favorable choice for furnace replacement.

Electric Furnace Installation & Replacement

The electric furnace is another popular choice for homeowners. Electric furnace installations are less expensive, as they require only electricity and not natural gas line piping installation or oil storage tanks.

On the flip-side, electrical furnaces are the most expensive to run due to their high usage of electricity. Electric furnaces still remain a common furnace replacement option with their comparatively lower purchase costs & minimal lifespan maintenance.

Ask an HVAC expert from Mainstream Electric, Heating, Cooling, & Plumbing today if the cost of an electric furnace installation is worthwhile for your home.

Oil Furnace Installation & Replacement

Oil furnaces are not what they once were in Spokane Valley, Washington, but they still offer some attractive benefits. Oil furnaces are able to heat large spaces evenly & have less emissions than gas furnaces, with no risk of carbon monoxide leakage in your home.

However, oil furnaces do require an on-site oil storage tank for fuel & an oil delivery service. Oil is typically more expensive than natural gas and has the lowest efficiency rating for heating per its energy source, however, this depends largely on your Spokane Valley, Washington location.

Call us today to schedule a furnace installation cost estimation to see if an oil furnace installation is the right fit for your home.

No matter the problem, our Spokane Valley, Washington furnace installation technicians will determine your heating & furnace needs and finances before any work is done, so you will know what solution is best & most affordable for your new furnace system.

Frequently asked questions

Get the Reliable, High-Quality Home Furnace Experts You Deserve

We offer a full line of installation, maintenance, and repair that your home furnace system may require, no matter the problem or time of year. You can count on the trusted professionals at Mainstream Electric, Heating, Cooling, & Plumbing for exceptional service and quality craftsmanship.

Check out why your neighbors trust us to get the job done right

Very personable and patient!

Both technicians that came to our home were great! They were very personable, and very patient. My mother in-law has a hard time with her English, as it is her second language, but they were both very patient with her, and made sure she understood everything that needed to be done. On their customer service alone I would recommend this company. We live in an old 1980's trailer which made it hard to find parts needed to fix our heating system, but they did all the research they could to try and find the parts needed. I am so glad I decided to call Mainstream Electric and will continue to use their services in the future.
Analee B.

Great seasonal service!

Great seasonal service today on our furnace and air handler/AC unit. Matt Miller did a very courteous and professional job describing all that he was doing and did and made additional recommendations on future service and care. He was very knowledgeable and had great interpersonal skills. We have used Mainstream for other projects as well and have always been satisfied with the work performed. I can say with honesty that they have not always been the cheapest, but they have always been the best. 'Good service is not cheap and cheap service is not good.' If you ever need a plumber, electrician or HVAC specialist, I highly recommend Mainstream.
Greg A.

Knowledgeable, fast and efficient!

Norm and Adam were knowledgeable, fast and efficient when installing my new furnace. They had answers to all of my questions and explained everything they were doing. I would recommend Mainstream Electric to anyone needing help with their heating. They even assisted me in getting financing for my furnace. Thanks to everyone at Mainstream Electric you are great!
Linda G.

Very Efficient

Crew was very efficient and knowledgeable. Replaced HVAC with next day service for first responders. System is working well and installed superbly. Will give it a run for a while to better judge but it is a quality name Lennox system. 10 year parts and service so expect there will be no problems. Good job!
Kevin E.

Amazed

Our home is 66 years young and it was time to replace the original water lines and sewer lines. I was amazed that they were able to streamline, fix old plumbing mistakes and make our entire water system user friendly. Thank you Cody, Donovan and the third guy that I can't remember his name. They were all professional, polite and knowledgeable.
Leland H.

Respectful

Cody was respectful, personable, courteous, answered all our questions we had during his visit, knowledgeable. Cody helped us get in touch of the appropriate people, to finance the work that our home needs. He helped get the work scheduled so that we wont need to wait longer to get the work taken care of.
Crystal N.

Above & Beyond

Technician Steve, was very thorough in his investigation. Went above what I asked for, we had a black water flood and I was just asking to have the toilet and sink reinstalled. He put his camera through my sewer system to make sure that we were not going to have future issues. He made sure that I was able to see what he saw. It was educational to say the least and he was great at explaining what was in there. Feel very safe using his services and do not feel that he is taking advantage in any way. Highly recommend Steve!!
Aaron S.

Highly Recommend

My first time using this company for the water heater flush special for $99. Good value. The serviceman Brent was knowledgeable, very professional and courteous. He explained things well. He was friendly and used shoe covers and face mask, even though I didn’t require it. I appreciated the good service and clean work. I also received a follow up phone call from their office after the work was done.
Takeo K.
Read all our reviews

Mainstream’s technicians can help you fight off the winter chill

Spokane Valley winters are no joke! If you need a new furnace installed in your home, don’t wait any longer. Whether you live in Coeur d’Alene, Mica, Rathdrum, or anywhere else in the area, Mainstream Electric, Heating, Cooling, & Plumbing will come to you and help make your home warmer.

Give us a call at (866) 411-9277 or contact us online any time to get started!

Special Offers in Spokane Valley, Washington

FREE Service Call with Repair
Free

Schedule Now
02/28/2022
Disclosure
Call for Conditions & Restrictions / Present Coupon at Time of Service / Not Available to Combine with Other Offers
FREE Furnace Special*
Free

Taxes aren't free, but your furnace could be! When you purchase a Daikin air conditioner, you'll receive a Daikin furnace for free! We'll also include a complete heating and cooling system check! Financing options available.   *Free labor and installation are not included on furnace.

Schedule Now
02/28/2022
Disclosure
Call for Conditions & Restrictions / Present Coupon at Time of Service / Not Available to Combine with Other Offers
$79 Once a Year, You’re in the Clear HVAC System Checks
Original Price: $ 129
Savings:$ 50
Sale Price:$79

Super convenient Heating & A/C Check. Why are checks important?

  • Keeps your systems running at peak efficiency
  • Helps prevent unexpected breakdowns
  • Extends the life of your equipment
  • Keeps your family safe from carbon monoxide leaks

Schedule Now
01/31/2022
Disclosure
Call for Conditions & Restrictions / Present Coupon at Time of Service / Not Available to Combine with Other Offers

Arrange a callback

Leave us your details below and we'll give you a call right back

Font Resize
Contrast