1. Energy One

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Las Vegas, NV

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Energy One

4.9 (11 reviews)
Open • 9:00 am - 5:00 pm

Services - Energy One

Siding installation

Siding repair

Siding replacement

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Recommended Reviews - Energy One

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Reviews With Photos

Shawna S.

I'm very happy with my window installation and service. Everyone has been very professional and friendly. David and Cliff have provided exceptional customer service. The windows look and perform great!

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7 years ago

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2 years ago

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2 years ago

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6 years ago

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8 years ago

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7 years ago

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4 years ago

Thank you for my new beautiful windows!! They are good looking and energy saving. I can't thank you enough.

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3 years ago

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5 years ago

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5 years ago

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9 years ago

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Review Highlights - Energy One

“My install was done in October 2024, so I can't speak of the change in energy bills yet, but they look great.”

Mentioned in 2 reviews

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Window World - Window World of Southern Nevada | JD Power Award

Window World

(189 reviews)

Southeast

**We are EXTREMELY HAPPY with Window World\!**…read more The first time we worked with Window World, they installed new windows in our old house, and we were very happy with the results\. When we bought our new townhouse, we decided to add a sunroom to our home\. We called Window World again, and after receiving all the necessary HOA approvals, we were ready to begin\! We had the pleasure of working with Sales Representative Kevin Reed and his team, Oscar and Cristian\. They did an amazing job\! It took just a few days for Window World to build our beautiful new sunroom\. We are absolutely thrilled with the quality of their work, professionalism, and how quickly everything came together\. Our new sunroom is AMAZING, and we couldn't be happier\! **Thank you, Kevin, Oscar, Cristian, and the entire Window World team, for making our dream sunroom a reality\!** We highly recommend Window World\! Mila and Alex

I don't remember the names of the two gentlemen who sold me my windows but I do remember how…read moreimpressed I was. They came in at a fraction of the price of every other company I received quotes from. They were professional, straightforward, never pushy, and just genuinely kind people to work with. They even stopped by my office instead of my home to complete the documents we needed. The real reason I'm writing this review, though, is because of the customer service after the sale: About a year after my installation, the window frames that are exposed to the brutal Nevada sun started to yellow. I called Window World, and even though it had been a year, they immediately offered to make it right. They sent out a representative named Alex (I hope I'm remembering his name correctly, kind gentleman in a truck and ties is hair back) and he was fantastic. He was incredibly knowledgeable, took the time to explain what had happened and walked me through a few different solutions. We decided to have the frames repainted with a specialty paint designed for the issue and within just a few days, a painter was at my house completing the work. The painter was also great. The only hiccup was that while removing my screen door, one of the handles came off without either of us noticing. There were also a few small spots of white paint left behind on my walls. I called Window World, explained the situation, and they immediately sent Alex back out. Once again, he was friendly, professional, and genuinely wanted to make sure everything was taken care of. He looked over my concerns and assured me they'd be fixed. Then he noticed that my screen had been absolutely destroyed by my dogs. I never even asked about it but he volunteered to replace the screen on the spot. That level of customer service is incredibly rare these days. From the initial sales experience to standing behind their product long after installation, Window World has been outstanding. They earned my trust and they've earned a customer for life. I won't use anyone else for my windows, and I wouldn't hesitate to recommend them to anyone.

Delux Windows and Glass - New energy efficient windows

Delux Windows and Glass

(56 reviews)

Southeast

Both Jorge and Sam were efficient and professional when it came to estimating and installation. We…read moreneeded the glass installed in a timely manner so that we could meet an inspection deadline with the city, and they delivered. The price matched what they quoted over Yelp, and they installed it sooner than they quoted - I would not hesitate to use them again.

UPDATE: I'm changing my review to 1 star and will not be using this company again…read more I called to schedule an estimate for another cracked window I recently noticed in my upstairs bathroom. I asked whether there was any chance it could be replaced by tomorrow, and I was told the turnaround is usually 1-2 business days. No problem. What completely turned me off was the attitude of the person I spoke with. He was rude, condescending, and unnecessarily snarky. He told me, "Just to let you know, we don't make the windows, we just replace them," as if I had said something unreasonable. Then when I mentioned tomorrow, he responded, "Tomorrow is not a business day, it's Saturday," in the same snooty tone. There was absolutely no reason to speak to a customer that way. I was simply asking about availability. And considering this company has business hours listed on Saturdays, it was not some outrageous question to ask. I really wish I had gotten his name, but I was so caught off guard and irritated by the interaction that I ended the call without asking. This is especially disappointing because I had just used this company only a few weeks ago and had a good experience. It's amazing how quickly one rude interaction can completely change someone's opinion of a business. I will gladly take my money elsewhere. There are plenty of companies that can replace a window. Customer service, professionalism, and basic respect are what make people want to come back. This company lost my business over something that could have been handled with simple courtesy.

Energy One - windowsinstallation - Updated October 2026

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