Castle Windows Cost And Quotes 2026
Castle windows prices are low for industry standards - $650 to $900 per window fully installed. Castle offers a similar cost structure to Window World prices (ala carte pricing). They offer the consumer a low teaser price for a stripped down vinyl window fully installed (the old Window World $199 installed deal). Any and all features or upgrades to the base model increases the price by set increments; for instance, an upgrade from clear to low-e glass might add $75. While some consumers are fine with this type of cost structure, others are annoyed at the lack of transparency.
⭐ PRO TIP REMINDER - always gather 2 to 3 project quotes as pricing can vary TREMENDOUSLY - save hard-earned $$$! ⭐
Castle Windows Cost: $$/$$$
(2/3 out of 5)
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Castle Window Series
Castle would probably be considered an average vinyl window. I think there is a place for them in the industry, but there all better options out there that might offer better long term value. Are Castle Windows out of business - no they are definitely still in business and selling to homeowners and consumers. For more information and homeowner reviews of quality and service, read all of our Castle Windows reviews here.
✅ PRO TIP - project quotes vary by THOUSANDS, so collect multiple project quotes, compare, and save $$$! ✅

Entry Level Castle Windows Prices
The entry level option is a stripped down vinyl window that probably uses a clear glass option. The company appears to assemble their own products in their factory(ies), instead of purchasing the assembled window and rebranding the line with their own name. (Relaibilt typically uses a rebranded Atrium window.)
-- $650 to $750 installed --
(assumes medium size and retrofit installation)
Mid to Premium Castle Windows Prices
Mid to high end pricing may or may not be a different frame extrusion. It will include a low-e2 or low-e3 double pane glass, an argon glass fill and a 2x weatherstripping. It will include a hardware upgrade from plastic to perhaps a metal such as nickel. They offer a lifetime warranty on their products.
-- $750 to $900 installed --
(assumes medium size and retrofit installation)
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Castle Window Costs vs Renewal By Andersen
| Window Series | Total Quote Installed | Average Installed Cost |
|---|---|---|
| Renewal By Andersen | $24,000 | $2,182 |
| Castle Windows | $9,600 | $873 |
| Viwinco Cambridge | $8,400 | $764 |
| Window World | $8,270 | $752 |
I have 4 estimates on 8 main windows (all 38 inch by 58 inch), plus 3 bedrooms windows. So 11 windows total.
Renewal: $24,000
Castle Windows Cost: $9600
Viwinco Cambridge Bid: $8400
Window World: $8270
Ramona - Homeowner - from 2026
Editor's Advice:
I'd toss the Renewal quote as too expensive. I would consider the Viwinco Cambridge quote for sure - this window is on par with the Castle option (Soft-Lite Barrington relabeled). If you like the Viwinco dealer in your area, then this would be my call.
Dane — Website Editor - from 2026
⭐ PRO TIP REMINDER - always collect 2 to 3 project quotes, compare pricing, and save $$$! ⭐
Viwinco Cambridge Window Pricing
| Window Series | Total Quote Installed | Average Installed Cost |
|---|---|---|
| Viwinco Cambridge Model | $5,100 | Not Provided |
| ProVia Endure Model | $4,500 | Not Provided |
My husband and I have been debating between two different options. We have a casement, a big 3-window opening, and 6 other casements.
Viwinco Cambridge Model: $5100
Provia Endure Model: $4500
Rita - Homeowner - from 2018
Editor's Advice:
Rita, the Endure from ProVia Endure is the better window and it's cheaper. The Viwinco Cambridge is not a bad window by any means but the Endure is the better series.
Tim - Site Editor - from 2018
⭐ PRO TIP REMINDER - always collect 2 to 3 project quotes, compare pricing, and save $$$! ⭐
Various Replacement Cost Bids
So happy I found your amazing website! I took your recommended list and collected quotes on 23 "openings" in Central NJ. Love to get your take on what I've collected so far.
Universal Windows UniShield Cost $17,500
Ideal Majestic Cost $25,000
Window World 4000 Cost - $18,600
Castle Windows Prices: $28,500
Danny - Homeowner - from 2022
[Website Editor Answers]
Danny, my first pick would be the UniShield option - the Polaris ThermalWeld, which is what this is, is a very good window and you are getting it at a very fair price. The Ideal Majestic is the best replacement model of the bunch, but I don't think it's worth the upgrade cost in your case. If you are planning to live in your home long term, then I think I might consider the Majestic series, but if not, the Unishield is the winner in my book.
Dane - Website Editor - from 2022
Castle Windows Pricing Quote
Dane, just received a quote for Castle windows prices on the whole house replacement of the following:
11 sliders
5 double hung
1 - 49” x “ 46 flat fixed frame
Was Quoted $17,927 fully installed
Is this a good mid range quote? Getting other estimates on Viwinco vs Anderson. Just looking for a reality check. Is it high or in the ballpark?
Thanks.
Jim - Homeowner - from 2022
[Website Editor Answers]
Jim, I'm thinking it's a bit high. It really depends if it's for retrofit/replacements or it is for full frame replacement? I'll send you my list of recommended brands and options -- contact Dane or Tim for their list.
Dane - Website Editor - from 2022
Cost Bid
Dane, I have two bids for the following dimensions: 32x60 (2), 75x47 (1), 23x43 (1)
Castle Bid: $5334
Window Nations Grandview Price Bid: $5583
Matt - Homeowner - from 2021
Castle Windows Cost vs. Okna
I have two quotes for 21 openings One is from Castle, which is $13,850 but, I also have a quote from an Okna dealer for the 500DX at $14,500. The research that I did on Slocomb seem pretty good but, I've never heard of them until Castle came yesterday.
Thanks for any information you can provide.
Mark - Homeowner - from 2021
[Site Editor's Answer]
Mark, the Okna 500 DX is the window you want to go with. Better production quality and craftsmanship.
Tim - Site Editor - from 2021
2020 Window Bid
We accepted the below quote from Castle. (Though the loan approval came through as Cardo d/b/a Castle). Can you please take a look at this and tell me is this a good quote? It includes 1 casement in the kitchen and two semi-circled shape, one over a single window, the other over a double. I have until midnight tomorrow to back out. The bid is for 20 "openings" at $22,100. Thank you.
Andy - Homeowner - from 2020
[Website Editor Answers]
Andy, Castle does not make what I would consider to be a top tier option. More of a mid range vinyl window. I would be hard pressed to spend over $1000 a window for Castle.
Dane - Website Editor - from 2020
Castle Price Bid
Replacing leaky units - 2 double hungs, 8 casements.
United 4800 Series (through Lowes): $3000
Reliabilt 3900 Series (through Lowes): $4000
Castle Windows Prices: $4500
Ken - Homeowner - from 2018
[Website Editor Answers]
Ken, I'd go with the Castle Windows myself.
Dane - Website Editor - from 2018
Castle vs Andersen
I have 4 estimates on 8 replacements (all 36 inch by 59 inch), 1 smaller bathroom unit, and 1 bow (3 units mulled together).
Renewal by Andersen Cost: $16,000
Castle Quote: $6600
Viwinco Cambridge Cost: $5400
Window World Bid: $5270
Ramona - Homeowner - from 2017
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Related Topics: Harvey Windows Prices
$199 Window Special
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