We may be compensated if you purchase through links on our website. Our Reviews Team is committed to delivering honest, objective, and independent reviews on home products and services.More
Solar panels in yard.

Intermountain Wind and Solar Reviews (2024)

Get a personalized solar estimate

Invalid Zip Code

Join the 10,601 people who have received a free, no-obligation quote in the last 30 days

Author Icon Written by Tamara Jude Updated 04/08/2024

Intermountain Wind and Solar (IWS) helps customers prepare for a solar energy system with its informative website that walks each user through the benefits and savings associated with solar. The company serves both residential and commercial customers, using premier solar panels backed by extensive warranties. Read our review on Intermountain Wind and Solar services and installation to decide if this company is the best solar provider for you.

Company Star Rating BBB Rating Location Presence Link
A+ 50 States GET QUOTE
A+ 18 States GET QUOTE
A+ 2 States GET QUOTE
NR 50 States GET QUOTE
No results were found.

Is Intermountain Wind and Solar Worth It?

Intermountain Wind and Solar helps its residential and commercial customers save money and reduce carbon emissions through solar system installation. The company’s A+ rating on the Better Business Bureau (BBB) and its North American Board of Certified Energy Practitioners (NABCEP)-certified installers make Intermountain a solid choice for customers looking for a trusted provider.


Allows users to calculate their solar savings with an online estimator
Lists state tax incentives online for all serviced regions
Offers the Tesla Powerwall for customers who want solar back-up


Only available in Utah, Idaho, Wyoming, Nevada, and Oregon
Doesn’t provide online financing information

Intermountain Wind and Solar offers a variety of services to its customers including roofing, excavating, and solar solutions. For residential and commercial solar customers, the company provides solar panel and battery back-up installation.

Residential Solar Installation

While installation may look different from state to state, Intermountain Wind and Solar generally follows a six-step process for installing solar panels:

  1. An at-home consultation
  2. A custom system design
  3. A review of your financing options
  4. The filing of proper permits and paperwork
  5. Installation from certified professionals
  6. Post-installation repairs and maintenance

Intermountain Wind and Solar offers customers an online application that estimates their energy savings and helps them ensure their panel output aligns with its estimated efficiency.

Commercial Solar Installation

Intermountain Wind and Solar has built solar panel systems for a variety of businesses to help them improve their bottom line. IWS urges businesses to consider going solar and cites three top reasons for switching to the renewable energy source:

  1. Tax incentives reduce the overall cost—There’s a current federal tax incentive for solar that allows you to deduct 30% of the cost of installing solar panels.
  2. Solar is a safe investment—IWS predicts that commercial customers will receive a return between 10%–15% per year over the life of their solar system.
  3. Solar frees up expenses—Intermountain Wind and Solar estimates that companies will receive $1.50 for every $1.00 spent on solar.

Battery Back-Up

IWS offers the Tesla Powerwall battery back-up for customers who want to store their solar system’s excess energy. The solar battery gives homeowners and businesses on-demand solar energy for unexpected events like power outages.

The battery comes with a mobile app for system monitoring, so you can keep track of battery storage levels, peak levels of home energy usage, and power outages.

What Is the Cost of Intermountain Wind and Solar?

To help customers estimate the cost and savings available with solar, Intermountain Wind and Solar has a calculator that estimates your solar power needs and potential savings. To give you an idea of the savings available, we received an estimate based on a residential home in Salt Lake City, Utah, with a monthly power bill of $100.

Intermountain Wind and Solar Pricing

Old Monthly Electric BillRecommended System SizeNew Monthly Electric Bill with SolarSavings (Monthly)Savings (Yearly)


6 kilowatts (between 15 and 22 solar panels)




Tax Credits by State

Intermountain Wind and Solar lists available state tax incentives on its website to help potential customers recognize their available solar savings. Utah and Idaho are the two states IWC services that offer state tax incentives.

  • Utah—Utah residents can claim 25% of solar array costs for up to $1,600.
  • Idaho—Idaho residents can claim 40% of solar array costs for the year that solar panels were installed. An additional 20% of solar array costs can be claimed for the next three years, up to $5,000 per year.

Note: Utah’s state tax incentive is available through 2020 and decreases every year after.

What Warranties Does Intermountain Wind and Solar Provide?

IWS doesn’t offer its solar warranties, but it does use top-of-the-line solar panels that come with comprehensive warranties. Typically, your solar panels will be covered by a 10- or-12 year product warranty.

Solar panels installed by Intermountain Wind and Solar usually come with a performance warranty that covers premature degradation. Most panels come with a guaranteed energy output of 90% for the first 10 years after installation.


Intermountain Wind and Solar installers are certified by NABCEP, an organization focused on providing solar practitioners and companies with proper training and certification programs. Intermountain Wind and Solar is also accredited by the BBB and holds an A+ rating from the company. This rating comes from the BBB’s understanding of how IWS handles customer complaints.

Our Conclusion

Intermountain Wind and Solar provides extensive installation services and convenient online information to homeowners and businesses that want to switch to solar power. Although the company isn’t explicit with its financing information online, its local offices tailor the solar experience to each customer’s home and location.

Before working with Intermountain Wind and Solar, we recommend getting quotes from a few different solar companies.

Get Estimates from Solar Experts in Your Area
Totally free, no phone call required

Other Solar Company Reviews

Frequently Asked Questions About Intermountain Wind and Solar

Do I have to go off the electrical grid when I switch to solar?

No. Most solar energy systems are connected to the grid during installation, so any excess energy your system produces goes back to your utility company. Your utility company will award credits toward your electric bill based on the amount of energy the grid receives, a practice known as net metering.

Are solar panels difficult to maintain?

Solar panels don’t have moving parts that break easily and don’t require much maintenance. Annual cleaning with water and soap should be enough to keep your panels operational.

When will I need to replace my solar panels?

Most solar panels see a significant power output decrease within 25 years, but solar panels typically come with a manufacturer’s warranty of around 20 years.

Our Rating Methodology

The This Old House Reviews Team is committed to providing comprehensive and unbiased reviews to our readers. After over a thousand hours of research on solar companies, interviews with experts, and common customer needs, we’ve created a detailed rating system for solar providers based on six factors:

  • Solar equipment, installation, and services (25%)
  • Warranty and performance guarantees (25%)
  • Brand reputation and certifications (15%)
  • Financing options (15%)
  • Experience (10%)
  • Availability (10%)

Total scores are divided by 20 for a final 5-point rating scale.

To share feedback or ask a question about this article, send a note to our Reviews team at reviews@thisoldhousereviews.com.