Energy One Windows Reviews 2026
Energy One Windows has been in business since 1998 and are a direct-to-consumer replacement window installer. (Much like Apex Energy Solutions.) This means they either advertise locally or they go neighborhood to neighborhood selling their window services to interested homeowners. Their sales presentations can be lengthy and they often try and close the sale on the same day that they make the pitch.
- Best For: Homeowners looking for quality mid-range vinyl windows
- Not Ideal For: Homeowners interested in premium wood windows
- Biggest Concern: Aggressive Sales Approach
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Energy One Cost: $$$/$$$$
(3/4 out of 5)
Energy One Windows And Doors
According to the company's website, they sell four basic options: a wood clad, vinyl, architectural, and a black interior/exterior window. From what I can suss out, the company sells an Alside window, the 8000 series for their vinyl offering. I'm assuming that the black option is simply Alside 8000 windows with a custom black exterior and interior frame color. I did see somewhere that they also sell an NT window, specifically the Solar Pro series.
Locations: Energy One has branches in the following metro centers: Austin, Dallas, Houston, Las Vegas Raleigh, and San Antonio.
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Energy One vs Zen Windows
| Window Series | Manufacturer / Platform | Editor's Take |
|---|---|---|
| Energy One Venetian | Alside 8000 Series | Solid Mid Range Vinyl Window |
| Zen Lotus Series | Varies By Zen Branch | Verify Whether The Window Is Soft-Lite Or Alside |
"Dane, sorry to email with so many questions but this is a big investment so I don’t want to make a mistake. I just watched a you tube video on zen windows which says they are made by alside so now I am really confused. Does Alside make windows for both zen and energy one and is the Venetian actually the same as the lotus series?
I learned that the Venetian is the 8000 series window which is the highest level window Alside makes."
Cari - Homeowner - from 2026
Editor's Advice:
Bottom Line: The Energy One Venetian is based on the Alside 8000 platform, while the actual manufacturer behind a Zen Lotus window can vary by branch. Before comparing the two, confirm exactly which window manufacturer and series the local Zen dealer is selling.
Cari, so I have heard of Zen carrying Alside windows for certain branches, but against each branch can be different. They sell Soft-Lite, but that has been changing lately. There shouldn't be any cloak and dagger as to what you are buying — call up the Zen rep and ask them point blank what window they are selling you. I much defer the Soft-Lite over the Alside, but the high end Alside is a solid window.
Zen doesn't make their own windows so they are selling a relabeled window. If there is any hemming and hawing, I personally would get angry — if the salesman can't answer this question with specific and articulately, then tell them you are moving on. The Alside 8000 series is a solid window. Not a top tier vinyl window, but a solid mid range window.
Tim - Site Editor - from 2026
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Energy One Windows Reviews
| Window Series | General Quality | Editor's Take |
|---|---|---|
| Alside 8000 Series | Solid Mid Range Vinyl Window | Questionable Value At A Premium Price |
| NT Windows Series | Very Good Vinyl Window | More Attractive Option If This Is The Product Being Quoted |
"Hey guys, we recently received a quote from energy one windows and we didn’t know whether this was a company that we should be considering or not. The price quote seemed a bit high (they all did), but the salesman assured us they make a top-of-the-line replacement window and patio slider. I would love to know if you think this is true. Thanks in advance for all your hard work."
Debbie - Homeowner - from 2024
Editor's Advice:
Bottom Line: The value of an Energy One quote depends heavily on which underlying window series is being offered. An Alside 8000 can be a solid mid-range option, but an NT series would generally make the quote more appealing if the pricing is comparable.
Debbie, to the best of my knowledge, Energy One sells an Alside 8000 series. I’m not the biggest fan of the Alside brand. Not to say that it’s a bad option, just saying there are better window brands out there if you’re being charged a premium price point. However, I have also heard that energy one sells an NT series. This would change my opinion to some degree. As far as I’m concerned, NT is quite a nice brand. I’m not exactly sure which series they sell, but the NT presidential and energy masters are both very good window series.
I guess I would say this, don’t just get this bid without collecting a few others. Then you will have a much better way to compare what different local companies feel your project is worth and you will be able to compare different brands and windows. Send the bids to me and I am happy to take a look and give you my opinion on what I think is your best bet. Thanks for visiting the site, we really appreciate it.
Dane - Site Editor - from 2024
Energy One Alside Venetian Triple Pane Window Bid
| Window / Pricing Detail | Cost Information | Editor's Take |
|---|---|---|
| Energy One Alside Venetian Triple Pane | Quote Not Disclosed | Verify The Underlying Alside Series |
| Alside Vinyl Windows — Editor Price Range | $400 to $550 Per Window Installed | Pricing Above This Range May Be A Poor Value |
| Marketing House Offer | Pricing Cannot Be Revealed | Considered A Red Flag |
"We have gotten a quote from energy one to install replacement double hung triple pane windows in our 4 story home. They are the Venetian series made by alside and come with a lifetime guarantee. We have 31 windows to replace, including 6 sliders. As they want us to be a marketing house, they won’t allow us to reveal pricing. 2 questions: what do you think of these windows and what would be a decent price for this job."
Cari - Homeowner - from 2019
Editor's Advice:
Bottom Line: The lack of transparent pricing and uncertainty over which Alside platform the Venetian is based on are both reasons to proceed cautiously. The editor recommends identifying the exact window series and collecting additional bids before making a decision.
Cari, I know that Energy One sells the Alside Venetian, which honestly I still haven't figured out what window this is. Could you find out, it would be a wonderful help to other consumers who have this same issue. Maybe you could ask the salesman what Alside series the Venetian is closest to so that you can look at the features and components on their websites. If they don't want to answer this question, it's a red flag.
A couple more red flags here. The marketing house isn't legit and I don't like this approach. Then, can't reveal pricing -- why? is it proprietary information? such a good deal that it can't enter into the public domain?
Most Alside vinyl windows should run $400 to $550 installed. Anything more than that and I'd say its a bad deal.
I'd keep collecting more bids to see what the fair market price is for the project.
Tim - Site Editor - from 2019
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