And here's an alphabetical list from WindowAndDoor.com with product lines:

Air Master Windows & Doors*
Aluminum windows and doors. Storefront, curtainwall and commercial products. Glass railings and shower enclosures

All Weather Windows
Wood, metal-clad and PVC windows and doors

American Exteriors LLC
Vinyl windows, doors and siding

Amerimax Building Products Inc.*
Vinyl windows and doors

Amsco Windows
Vinyl and composite windows and doors.

Andersen Corp.*
Clad wood windows and patio doors. Composite replacement windows. Vinyl windows and doors. Storm doors.

Anlin Window Systems
Vinyl windows and doors

Armaclad Windows & Doors
Vinyl and fiberglass replacement windows and sliding patio doors. Fiberglass and steel hinged patio doors. Aluminum, fiberglass and steel entry doors. Storm doors and windows. Acoustical windows.

Associated Materials Inc.
Alside, Alpine, Gentek and Revere vinyl windows and doors. Vinyl siding, fencing, and other products.

The Atis Group Inc.
Clad wood, wood, PVC, and aluminum windows. Steel and wood doors.

Atrium Windows & Doors
Aluminum and vinyl windows and patio doors. Impact-resistant windows, patio doors, fabric and shutters. Acoustic windows. atio enclosures.

AWP Windows & Doors
Aluminum and vinyl windows and patio doors, including impact-rated products.

B.F. Rich Windows & Doors
Vinyl windows, architectural shapes and patio doors for the remodeling, new construction and light commercial markets.

Builders’ FirstSource
Aluminum and vinyl windows. Prehung interior and exterior doors.

Cascade Windows
Vinyl windows and doors

CGI Windows & Doors Inc.
Impact-resistant casement, project-out, fixed, single hung, French and sliding doors See product line highlights

Champion Window & Patio Room Co.
Vinyl replacement windows, vinyl siding, patio rooms and porch enclosures, steel and fiberglass prime doors, and sliding patio doors.

Comfort Window & Door Co.*
Vinyl windows and doors, entry systems and sunrooms.

Croft LLC*
Aluminum and vinyl windows and doors.

Crystal Window & Door Systems Inc.
Residential vinyl windows and sliding patio doors. Commercial aluminum windows, patio doors and curtain wall systems. See product line highlights

Custom Window Systems Inc.*
Impact and non-impact vinyl windows and doors. Aluminum windows and doors.

Don Young Co.
Aluminum and vinyl windows and doors

Durabuilt Windows & Doors
Vinyl windows. Aluminum-clad PVC and aluminum/PVC/wood hybrid windows. Fiberglass and steel entry, patio and garden door systems.

Elixir Industries*
Exterior door units for residential and factory-built housing, recreational vehicles and cargo trailers. Vinyl windows.

Farley Windoor Ltd.
Vinyl windows and patio doors. Steel and fiberglass doors.

Fenplast Inc.
Vinyl windows and doors. Steel entry door systems.

Formosa Plastics Group*
Plastpro fiberglass entry doors and composite frames. Neuma fiberglass patio door systems.

Fortune Brands Home & Security
Therma-Tru fiberglass and steel entry doors and patio doors. Simonton vinyl windows and patio doors. Fypon synthetic trim and millwork components.

Four Seasons Solar Products LLC
Sunrooms, conservatories, screen rooms, patio covers, pergolas, and retractable awnings. Replacement windows and doors.

Gerkin Windows & Doors
Commercial aluminum windows, vinyl windows and patio doors. Storm doors.

Gilkey Window Co.
Vinyl windows and patio doors. Entry doors

Harvey Building Products
Vinyl, wood, and aluminum windows. Steel and fiberglass entry doors. Acoustical windows. Patio rooms.

Hayfield Window & Door Co.
Vinyl- and vinyl-clad wood windows for new construction and replacement

Hurd Windows & Doors
Wood and clad-wood windows and patio doors for residential and commercial applications. Superseal vinyl windows and doors.

Inline Fiberglass Ltd.
Fiberglass windows and doors, fiberglass window reinforcements for aluminum and vinyl windows and architectural custom profiles.

Jeld-Wen Inc.
Wood, vinyl, and aluminum windows and patio doors. Wood, steel, and composite entry doors. Interior doors.

Kinro Inc.
Windows and doors for the manufactured housing and recreational vehicle industries

Kolbe & Kolbe Millwork Inc.
Wood windows and doors. Vinyl windows and doors. Fiberglass doors. Wood interior doors. See product line highlights

Larson Manufacturing Co.
Aluminum and wood-core storm doors. Storm windows and retractable screen doors.

Lincoln Wood Products Inc.
Lincoln wood windows and patio doors. Timeline vinyl windows and patio doors

Lux Windows & Glass Ltd.
Aluminum-clad, wood and PVC windows and doors

MariTech Windows
Vinyl windows and doors

The Marvin Cos.*
Marvin, Integrity and Infinity wood and fiberglass windows and doors

Masco Corp.*
Milgard aluminum, vinyl, and fiberglass windows and doors.

Masonite International Inc.
Steel, wood, fiberglass and composite entry and patio doors. Interior doors, French doors, and bi-fold doors.

Mathews Brothers Co.
Putty-glazed wood windows; historic restoration wood windows; new construction and replacement PVC windows and patio doors
See product line highlights

MGM Industries
Vinyl windows and patio doors

MI Windows & Doors
Vinyl and aluminum windows and doors.

Midway Windows & Doors
Vinyl windows and patio doors for both the new construction and replacement markets.

Modern Builders Supply Inc.*
Polaris Technologies vinyl windows. Wood windows, steel and fiberglass entry doors, shutters.

Moss Supply Co.
Vinyl, aluminum and composite windows for new construction. Vinyl patio doors new construction and replacement windows and patio doors.

Northeast Building Products
Vinyl and aluminum windows, entry doors, aluminum storm doors and windows, glass block windows.

The Novatech Group
Steel and fiberglass entry doors, PVC garden and sliding doors. Decorative and standard doorlites, as well as venting and mini-blind units. Retractable screens.
See product line highlights

NT Window Inc.
Vinyl and aluminum replacement windows and doors. Window and door products for new construction and light commercial applications.

ODL Inc.
Doorlites, decorative glass products and skylights. Entry door blinds and retractable screens. Patio doors.

Okna Windows & Doors
Vinyl and composite windows and doors

Paramount Windows Corp.
Aluminum and vinyl windows and doors

Patio Enclosures by Great Day Improvements Sunrooms, patio rooms, and screen rooms. Vinyl replacement windows.

Pella Corp.*
Wood, vinyl, fiberglass window, patio door and entry door products, as well as steel entry doors. Efco architectural windows, curtain wall, storefronts and entrances.

Peter Kohler Windows & Entrance Systems
Vinyl and vinyl/wood windows and doors. Steel and fiberglass entry systems.

PGT Industries
Aluminum and vinyl windows and doors. Impact-resistant windows and doors

Ply Gem
Vinyl, wood, wood-composite, aluminum, aluminum-clad and vinyl-clad windows and patio doors

ProVia
Steel and fiberglass entry and patio doors. Vinyl, composite and aluminum replacement windows. Aluminum storm doors. Vinyl patio doors.

Quaker Window Products Inc.
Aluminum, vinyl, and wood-clad windows and patio doors. Aluminum storm windows. See product line highlights

Reilly Windows & Doors
Traditional and contemporary custom wood windows and doors. Screens and wood shutters.

Robert Bowden Inc.
Wood windows, interior and exterior doors, garage doors, millwork, stairs, columns and specialty mouldings

Seaway Manufacturing Corp.
Vinyl replacement windows an sliding patio doors; steel entry doors; storm windows and doors. Sunrooms and patio rooms.

Semling-Menke Co. Inc.
Wood and aluminum-clad wood windows and doors.

Serious Energy
Fiberglass and vinyl windows for residential and commercial applications. High performance insulating glass.

Sierra Pacific Windows*
Wood and aluminum-clad wood windows and doors.

Simpson Door Co.
Wood stile and rail interior and exterior doors
See product line highlights

Soft-Lite LLC
Vinyl windows, including garden, bay, bow and specialty shapes. Patio doors including sliding, French and atrium models
See product line highlights

Solar Innovations
Aluminum doors, windows, skylights, greenhouses, sunrooms and conservatories. Wood and aluminum curtain walls.

Solaris International
Vinyl windows and doors See product line highlights

Starline Windows Ltd.*
Vinyl windows and patio doors. Thermally-broken aluminum windows and patio doors. Window wall systems and balcony doors.

Steves & Sons
Molded panel, flush, wood stile-and-rail and MDF interior doors. Steel, fiberglass, molded panel and flush exterior doors.

Sun Windows Inc.
Clad wood windows and doors. Vinyl windows. See product line highlights

Sunrise Windows Ltd.
High-performance, custom replacement windows and doors

Taylor Building Products
Steel and fiberglass entry doors. Decorative doorlites

Thermal Windows Inc.
Thermal barrier windows, sliding glass doors and terrace doors See product line highlights

Thompson Creek Window Co.
Vinyl windows and doors

Tru Tech Doors
Wood-edge steel doors, steel-edge steel doors and steel frames. Fiberglass doors. Complete door systems featuring decorative glass, wrought iron and mni-blind options.

THV Compozit Windows & Doors*
Vinyl and composite replacement windows. Steel entry door systems.

TruStile Doors LLC
MDF and wood stile-and-rail interior and exterior doors

United Window & Door Manufacturing
Vinyl windows and patio doors

Vinylmax LLC
Vinyl windows for replacement and new construction. Vinyl patio doors
See product line highlights

Vista Window Co. LLC
Vinyl replacement windows See product line highlights

Viwinco Inc.
Vinyl windows, patio doors and geometric units. Impact-resistant products

ViWinTech WIndows and Doors Inc. Vinyl windows and patio doors.

VKR Holding A/S
Skylights and roof windows. Wood, aluminum and vinyl windows and patio doors.

Vytex Corp.
Vinyl windows and patio doors. Bays and bows. Entry and storm doors.

Wallside Windows
Vinyl replacement windows

Weather Shield Manufacturing
Clad-wood, fiberglass and vinyl windows and patio doors. Entry doors. See product line highlights

Win-Dor Inc.
Vinyl replacement windows and doors

Wincore Windows & Doors
Vinyl windows, patio doors, fiberglass entry doors See product line highlights

WinDoor Inc.
Aluminum sliding glass doors and fixed windows. Vinyl windows. See product line highlights

The Window Designs Group
Vinyl and aluminum windows, vinyl window extrusions.

Woodgrain Millwork Inc.*
Wood and aluminum-clad windows and doors, cellular PVC windows, and vinyl windows and doors. Pine doors and mouldings.

YKK AP Inc.
Vinyl windows and doors for the new construction, replacement and impact markets. Commercial windows, doors, curtainwall and entrances.

Zeluck Inc.
Custom wood windows and doors. Bronze and steel windows and doors.

Here is a link that might be useful: Link from WindowAndDoor website

And here's the WindowAndDoor.com list of top 2013 window manufacturers by sales volume (An asterisk indicates the company has not confirmed sales information.):

More than $1 Billion
Andersen Corp.*
Formosa Plastics Group
Jeld-Wen Inc.
Masonite International Corp.
Pella Corp.*
VKR Holding A/S
YKK AP Inc.

$500 Million to $1 Billion
Atrium Windows & Doors
Fortune Brands Home & Security
The Marvin Cos.*
Ply Gem

$300 Million to $500 Million
Associated Materials Inc.
Harvey Building Products
Masco Corp.*
MI Windows & Doors
Woodgrain Millwork Inc.*

$200 Million to $300 Million
The Atis Group
Builders' Firstsource
Champion Window & Patio Room Co.
Modern Builders Supply*
Weather Shield Manufacturing

$100 Million to $200 Million
All Weather Windows
Four Seasons Solar Products LLC*
Kinro Inc.
Kolbe & Kolbe Millwork Inc.
Larson Manufacturing Co.
ODL Inc.
PGT Industries
Sierra Pacific Windows*
Starline Windows Ltd.
Steves & Sons
The Window Designs Group

$50 Million to $100 Million
Amsco Windows
Cascade Windows
Croft LLC*
Crystal Window & Door Systems LLC
Custom Window Systems Inc.
Durabuilt Windows & Doors
Elixir Industries*
Hurd Windows & Doors
The Novatech Group
Paramount Windows Corp.
Peter Kohler Windows & Entrance Systems Ltd.
ProVia
Quaker Window Products Inc.
Simpson Door Co.
Soft-Lite LLC
Sunrise Windows Ltd.
Thompson Creek Window Co.
Wallside Windows
Wincore Windows & Doors

$40 Million to $50 Million
Fenplast Inc.
Lincoln Wood Products
Robert Bowden Inc.
United Window & Door
Vinylmax LLC

$30 Million to $40 Million
AirMaster Windows & Doors
American Exteriors LLC
Amerimax Building Products*
Anlin Window Systems
Armaclad Windows & Doors
CGI Windows & Doors
Lux Windows & Glass Ltd.
MariTech Windows
Northeast Building Products
Reilly Windows & Doors
Semling-Menke Inc.
Serious Energy
Solaris International
THV Compozit Windows & Doors
Tru Tech Doors
TruStile Doors LLC
Vista Window Co. LLC
Viwinco Inc.

15 Million to $30 Million
AWP WIndows & Doors
B.F. Rich Windows & Doors
Comfort Window & Door Co.*
Don Young Co.
Farley Windoor Ltd.
Gerkin Windows & Doors
Gilkey Window Co.
Hayfield Window & Door Co.
Inline Fiberglass Ltd.
Mathews Brothers Co.
MGM Industries
Midway Window & Door Co.
Moss Supply Co.
NT Windows Inc.
Okna Windows & Doors
Patio Enclosures by Great Day Improvements*
Seaway Manufacturing Co.
Solar Innovations
Sun Windows Inc.
Taylor Entrance Systems
Thermal Windows Inc.
ViWinTech Windows & Doors
Vytex Corp.*
Win-Dor Inc.
WinDoor Inc.
Zeluck Inc.

Here is a link that might be useful: WindowAndDoor.com sales volume

No offense to the poster but several of the folks on that first list are out of business as well as the fact that I wouldn't deal with a majority of folks on that list.

The program is of no benefit to the consumer either.

Unfortunately using programs and articles like the above will be a good way to stay illiterate and clueless. As wow mentions misinformation abounds in reports like that. Forums like this, local window and door pro's and the like are valuable resources. Just stay away from box stores (HD, Lowes, etc) for advice and places like Consumer Reports, Angie's List, etc for recommendations.

WoW, I don't think the WVP program is even in effect anymore any way. I simply used it as an objective (as far as the government can be, LOL) starting place for a list of window manufacturers. I only see a few different companies mentioned here and was wondering what other companies are out there IF it even matters when researching. Where is a homeowner supposed to start?

Silly question, but I believe nobody on this forum likes Pella or JeldWen products (just picking out 2 companies I recognize)? How can they have sales > $1 billion if they are so bad? We put JeldWen exterior french doors in our house a few years ago, 3 singles and a double. Of course, we bought them at Home Depot. They seemed like the best doors there so we bought them. They seem to be working and holding up well, but how would we know if they weren't, right?

millworkman, thanks. So how do you recommned finding loal window/door pros? Any research online seems to lead to "linked" or "paid" websites that refer you to just certain companies. Don't you need to start with a list of the available "population" and than narrow that down? That's why I wanted to creat a "master" list of some type.

Jeld-Wen and Pella are billion dollar companies because they make and sell a bunch of product at nearly every price point.

Home improvement consumers are usually more concerned about stainless steel and granite than they are about window performance.

Why don't you start out with telling us about your window questions and project?

+1. Those lists are hardly comprehensive (there are thousands of window manufacturers in the US), nor do they provide anything in the way of determining whether they offer a good product or not.
Good news is, you are in the right place to do research. The forum here is packed with great info, and objective (mostly) advice from industry pros and other consumers :)

First, establish your goals and expectations for the project, then narrow your choices to material composition, followed by a few specific product choices.

Thanks, I will start another thread.

I am getting ready to install new windows. My contractor has recommended Lawson. If anyone has any comment please let me know.

You would be well advised to start your own thread and post up as many details of your project as you can.

I for one think it's interesting information. Buying a window from a company near the top of that list (sales volume) means they are very likely to be around to support their product. And it means over time they have a product that the market as a whole is buying. The bottom, maybe not so much....

That is one way of interpreting the information I guess.

That being said, several of the companies near the top of that list make what many consider to be substandard products and have very questionable warranty service records.

Prior to picking based solely on volume, you might want to search out the quality and warranty records on those companies.

I can tell you that of the wood windows on that list, I would only buy maybe 2 out of the top 5.

Based on the volume analysis...I guess you could say that McDonalds must be the best choice for a hamburger...?

Most of those companies in the top 20% of volume sellers have huge new construction divisions. If it were not for the new construction windows lack of quality, the replacement market would not exist.

If I read correctly, Millwork suggested tsaying away from Angie's List for recommendations. I have had good luck with a couple of companies I found there, such as the company that replaced our fence this summer.

When it was time to replace our windows, I got an estimate from Thompson Creek (way high, I thought). I also hung out here for a bit, and then emailed Eric at WoW, who ultimately replaced our windows. But I checked him out on Angie's List and Washington Consumer Checkbook first. ;-)

mary, you just need to be careful accepting these websites reviews as gospel. They are pay for play sites and anything can and will happen. Not saying they all will be great or they all will be poor, just always check references for any recommendations. And I do believe WoW will agree with me even though he apparently gets good reviews there (as well he should, I might add)!

WHO (see funny owl pic) is checking me out...

Thank you by the way Mary for using our company. You will have to remind me who you are via email.

Millworkman, as much as it pains me to say this, is correct.

You have to look at all of these review sites critically to see where their revenue comes from and what advertising can therefore buy you.

Thanks again.

Eric at Windows on Washington

Mary, here is an article about just this topic

Here is a link that might be useful: Angie List / CBS

Do not get Lawson Windows. We purchased Lawson windows over 2 months ago and it has been the most disappointing and frustrating experience. We spent a fortune and 3 out of 14 windows are allowing water to infiltrate our home. We collected close to 2 cups of water. Terrible customer service, Lawson doesn't take responsibility for their product, lacks integrity or they would work with us to resolve this issue. I was under the impression the new technology not only withstood hurricane five winds, provided better insulation and was water resistant too. 2 months later and we could grow a vegetable garden in the inside track of our impact resistant windows. Video shows how much water came into our home. https://www.periscope.tv/w/aLMOgjQyOTU4ODV8MXZBeFJuRW9tV3Z4bCqMWQcxKgY6v0A3shBL-3kWqCZO9B_dITENZLvoOb-5

Perfect, you give no legitimate reasons yet bash the product. You video proved nothing realistically.

Very sorry to hear about your experience aa1notary. I have no experience whatsoever with that product nor any bias one way or the other, but most often times water infiltration is due to installation issues as opposed to the product itself. The video has expired, but it sounds like perhaps you have horizontal sliders? Something as simple as caulked over or clogged weep holes could cause water to accumulate in the sill... Again, sorry to hear about your experience. I'd recommend having the installation company out to inspect, and possibly in conjunction with that manufacturer rep so that they cannot each blame each other when the other is not present.

The video was clearly condensation running down the glass and shows her son catching it/soaking it up with a washcloth. It is not raining outside and the glass is not obviously wet. Must be a sauna in the house for that kind of moisture. In my opinion her blaming the windows is a complete and utter fallacy.

Here's 2015 List of "Top 100 Window Cos." from Window & Door Mag W&D Magazine Top 100 Window Manufacturers

And that proves what? That you can link to the middle of an article with your company at the top? This entire article proves zilch as far as window quality and they even disclaimer it themselves by stating it is only based on dollar volume!!

HILARIOUS!

One, this is the same list that was posted above, albeit updated. Two, and more importantly: Really Earthwise? Posting the page to make it look like you are at the top of the list? Lol. Not a good look. This is the is shady stuff that gives this industry a bad name.

who makes croft windows & what quality r they?

Based on the website it looks like they make their own, builder grade window

thanks fridge-----i saw a sample in south ga. & unit looked reasonably built but sure like some insight from some personal experience out there?

No experience with it, but the spec sheet on their website shows a .30 is the best u factor even with multiple surfaces of low-e. That is not very good.