1 Solar

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Updated: 11 July 2025
Installer

Installing solar since 2014

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2.68 from 4 Reviews

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A score we give a solar company out of 100 based on 0 criteria that our SolarReviews industry experts believe are the best criteria to separate good and bad solar companies.

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1 Solar reviews


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2.68

Avg. rating

Breakdown of consumer reviews

Sales Process

1.5

Price as quoted

1.0

On schedule

1.8

Installation quality

2.3

After sales support

2.0

Latest bad review thumbs down

Nina B | Las Vegas, Nevada | 11/06/2025

terrible --- DO NOT USE THEM FOR SOLAR

The salesman completely lied about what the solar would do for my energy bill! I saw the bill that I was promised, two months out of almost 3 years. EVERY SINGLE TIME I tried to contact them, I would get the run around, transferred to many people and conveniently my salesman does not work with them anymore. Apparently, he was gone very shortly after the sale to me. I am so dissatisfied with all of the service from the sale to installation and the way it DOES NOT WORK like I was told. If you were smart, do not go with 1solar. RIP OFF

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KB | Las Vegas, Nevada | 07/11/2025

Their guarantees mean nothing

I have a 20 panel $27k system installed last year that was designed to eliminate my electric bill. In the summer, I am still receiving NV Energy bills $70 over the connection fee. 1Solar recommended installing 6 additional panels for a cash cost of $1,098 per panel. The cost of the equipment is $350 per panel in a retail setting, not wholesale. There was no negotiating a fair price and the salesman stood me up two days in a row. So much for the “energy guarantee” and promised outstanding customer service! Also, the pigeon guard they installed was not pigeon guard but hardware cloth. The cloth wasn’t installed correctly and cost $1,000 to remove and replace as pigeons were nesting under my panels.

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Tom | Broomfield, Colorado | 04/04/2025

Be Careful

Our experience has for the most part positive. However, after a years worth of performance, we still are paying $ for our power. We scheduled an appointment to talk to someone about it , and the explanation was "you`ve had a lot of cloudy weather, you need to install more panels". I`m sorry, we provided a years worth of power data before the system was installed so I have to feel like someone fucked up the engineering. I guess maybe excel has too much influence on the PUC. I wish it were the old days when people didn't misrepresent themselves!!!!!

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Marbur | Strasburg, Colorado | 01/31/2023

2 months after activating and zero electricity produced

I paid their salesman 50% of the cost of the project which I thought was to expensive a week later their salesman told me the contract was canceled and signed me up with a different company The next week 1 solar can by and started the instillation even though I had a contract with Sunpower. They had to come back three times to get the job completed after 5 months and 2 months after the system was turned on it has produced zero power. The salesman did not pay them any of the 50% i gave him so they threatened to sue me for what I gave him and I have not got the 30 year warranty I was promised. One reason my system may not have created any power is I live in Colorado and the panels are covered with snow. If you are thinking about installing Solar do not do it.

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Office locations


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Utah - Woods Cross

2391 S 1560 W, Woods Cross UT, 84087

Utah - Woods Cross

2391 S 1560 W Unit C, Woods Cross UT, 84087

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- Centennial

15131 E Fremont Dr, Centennial Colorado, 80112

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Nevada - Las Vegas

823 E Pilot Rd, Las Vegas NV, 89119

Contact 1 Solar


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2391 S 1560 W Unit C, Woods Cross UT, 84087
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1 Solar