When it comes to replacement windows, Gilkey and Andersen are two of the biggest names in the industry. Both companies have been manufacturing windows for over 100 years and are known for making high-quality, energy efficient products.
But how exactly do Gilkey and Andersen windows compare?
In this comprehensive guide, we’ll break down the key differences between Gilkey and Andersen windows to help you decide which is best for your home. We’ll compare warranties, glass packages, frame materials, energy efficiency ratings, prices, and more.
We’ll also overview pros and cons of both brands and provide an impartial assessment of which company offers the better overall value.
Whether you’re building a new home or renovating an existing one, choosing the right windows can be a big decision. Keep reading our Gilkey vs. Andersen comparison to make an informed choice!
A Brief Comparison Table
| Feature | Gilkey | Andersen |
| Frame Materials | Vinyl, Wood, Composite | Fibrex (composite), Vinyl, Wood, Aluminum |
| Glass Packages | Low-E, Low-E2, Low-E3, Low-E3/Argon | Low-E, Low-E2, Low-E3, Low-E4 |
| Warranty | Limited lifetime | Limited lifetime |
| Energy Efficiency Ratings | U-Factor 0.27-0.31, SHGC 0.23-0.28 | U-Factor 0.27-0.29, SHGC 0.19-0.23 |
| Manufacturing Location | Oregon, USA | Minnesota, USA |
Gilkey Window Overview
Founded in 1947, Gilkey Window Company is based in Portland, Oregon and manufactures a variety of residential vinyl, wood, and composite windows.
The company sells direct-to-consumer as well as through exclusive dealers across the Western United States.
Gilkey offers double hung, single hung, sliding, picture, bay, bow, awning, casement, and specialty shaped windows.
They use premium vinyl and composite materials sourced from respected brands like Axiom and PlyGem. For wood windows, they use Douglas Fir or Pine.
Some key features of Gilkey Windows include:
- Advanced glass packages – Options like Low-E3 and Low-E3/Argon for optimal insulation. Glass is sourced from Cardinal IG.
- Positive Action Lock – Enhanced lock and seal performance for air tight installation. Engages the sash tighter to the frame.
- Composite reinforcements – Layers of rigid composite material for enhanced structural stability. Improves insulation.
- Custom sizes – Windows are made to order and custom sized to fit any opening.
Gilkey offers a Limited Lifetime Warranty on vinyl and composite windows covering the glass, frame, and components against defects. Wood windows have a 20-year warranty.
Andersen Window Overview
Based in Bayport, Minnesota, Andersen Windows and Doors has been in business since 1903.
They sell prestigious wood and fiberglass windows through a network of authorized dealers.
The company’s Fibrex material combines the strength of wood fibers and thermoplastics for a durable, long-lasting composite frame.
Andersen’s product lines include double hung, single hung, casement, awning, gliding, picture, and specialty windows.
Notable features of Andersen Windows:
- High-performance glass – Glass options like Low-E4 and HeatLock to provide enhanced insulation, UV blocking, sound reduction, and temperature control.
- Fibrex frames – Durable, low-maintenance composite frames that won’t rot, swell, or warp. More thermally efficient than vinyl or wood.
- DualTech Lock – Industry-leading lock reinforcement with antijimmy features for added security and peace of mind.
- Cordless operation – Casement windows available with no exposed exterior cords for a cleaner appearance.
Andersen offers limited lifetime warranties on glass and Fibrex frame components to be free of defects in manufacturing, materials and workmanship.
Comparing Glass Packages of Gilkey And Andersen Windows
When evaluating windows, the quality of the glass packages is one of the most important factors as it affects insulation, efficiency, durability, and longevity.
Both Gilkey and Andersen offer high-performing Low-E coated glass to block heat loss in winter and heat gain in summer.
They also provide argon gas filled options for improved insulation.
However, Andersen offers slightly more advanced glass technologies including:
- Low-E4 – Four layers of metallic coating to control solar heat gain and block UV rays.
- HeatLock – Tempered glass exterior to reflect heat in summer, paired with Low-E for insulation.
Gilkey’s glass packages from Cardinal IG are quite good, but Andersen’s provide marginally better thermal efficiency in certain products. For hot climates, Andersen’s solar control options may be preferable.
Comparing Frame Materials
Gilkey and Andersen each offer windows with vinyl, wood, and composite framing options. Let’s compare the pros and cons of each.
- Vinyl – Gilkey uses top-grade PVC vinyl from Axiom and PlyGem. It resists swelling/warping, doesn’t need painting, and provides good insulation. Andersen’s vinyl frames have similar performance.
- Wood – Gilkey uses solid Pine or Douglas Fir for wood frames and sashes. Andersen uses Pine as well. Wood offers a classic, elegant look but requires more maintenance than vinyl or composite.
- Composite – Gilkey’s composite blends rigid polymers for added strength versus vinyl. Andersen’s patented Fibrex material is considered the superior composite with the warmth and beauty of wood but extra durability and performance.
For low maintenance and thermal efficiency, Fibrex scores points over vinyl and wood. But all three frame types from both brands are viable options depending on needs and budget.
Comparing Warranties
When you’re making a big investment in new windows, the warranty coverage provides important peace of mind.
Fortunately, both Gilkey and Andersen back their windows with strong limited lifetime warranties. This means the windows are warranted for as long as you own your home.
Gilkey’s Warranty
- Limited lifetime warranty on vinyl and composite frame/sash components.
- 20 years on wood frame/sash components.
- Limited lifetime warranty on seals, hardware, and other parts.
- Limited lifetime warranty on Cardinal IG glass units.
Andersen’s Warranty
- Limited lifetime warranty on Fibrex and vinyl frame/sash components.
- 20 year warranty on wood frame/sash components.
- Limited lifetime warranty on glass units.
- 10 year warranty on exterior aluminum cladding.
The warranties are evenly matched. Both Gilkey and Andersen stand behind their products for the expected life of the windows.
Comparing Energy Efficiency of Gilkey And Andersen Windows
With rising energy costs, you’ll want replacement windows that provide maximum insulation. Efficient windows keep homes cooler in summer and warmer in winter, reducing utility bills.
Two key measures of window energy efficiency are:
- U-factor – Rate of heat loss. Lower is better.
- Solar Heat Gain Coefficient (SHGC) – Solar radiation transmitted. Lower is better.
Comparing U-factors and SHGC values of different Gilkey and Andersen lines:
| Window | U-factor | SHGC |
| Gilkey 1000 Series Double Hung | 0.27 | 0.28 |
| Andersen 100 Series Narroline Double Hung | 0.29 | 0.23 |
| Gilkey Magnum SL Single Hung | 0.31 | 0.25 |
| Andersen 400 Series Tilt Wash Double Hung | 0.27 | 0.19 |
Performance is relatively even, but Andersen’s higher tier windows like the 400 Series test slightly better on U-factor and SHGC. Both brands meet ENERGY STAR qualifications for energy efficiency in all climate zones.
Comparing Prices
As you’d expect from premium brands, Gilkey and Andersen windows sit at the higher end of the price spectrum. Exact window costs vary by size, type, glass package, and features.
Both brands offer good value considering the quality and warranty. Gilkey vinyl and composite lines are slightly more affordable while premium Andersen Fibrex and wood windows sit at the top end for replacement windows.
Pros and Cons of Gilkey Windows
Gilkey Pros
- Positive Action Lock provides excellent sealing and security
- Variety of vinyl, composite, and wood frames to suit needs
- Limited lifetime warranties on vinyl, composite, and glass
- Very good energy efficiency ratings
- Oregon-based manufacturing with majority US/imported parts
- Shorter 3-4 week lead times for in-stock product
Potential Gilkey Cons
- Primarily serves Western US markets – limited distribution
- Not as advanced glass coatings as some Andersen products
- Wood windows require more maintenance than vinyl or composite
Pros and Cons of Andersen Windows
Andersen Pros
- Fibrex material offers durability and efficiency of composite plus beauty of wood
- Best-in-class glass technologies like Low-E4 and HeatLock
- Limited lifetime warranties on Fibrex, glass, and hardware
- Industry leading engineering and innovations
- National manufacturing and distribution footprint
Potential Andersen Cons
- Premium prices – Fibrex and wood lines are expensive
- Longer 6-12 week lead times on made-to-order windows
- Some casement windows have exposed exterior cords
Gilkey Or Andersen: Which Is Better?
Based on our in-depth comparison, Andersen windows are considered the better overall value in terms of technology, performance, and prestige. Exceptional glass packages, patented Fibrex material, strong warranties, and proven longevity make them a top tier product.
However, Gilkey also produces very good quality windows that come with an affordable price point, quicker turnaround times, and excellent thermal efficiency. Gilkey smartly uses Cardinal glass and partners with respected vinyl/composite suppliers.
For many homeowners, Gilkey windows will provide an ideal replacement solution at reasonable cost.
Their positive action locks and composite reinforcements offer real performance advantages.
We recommend Andersen primarily if your budget allows, you favor the aesthetics and durability of wood, or you need maximum energy savings in a hot climate.
Gilkey warrants strong consideration for an attractive product backed by wonderful customer service and warranties.
In the end, you can feel confident choosing either brand knowing they are industry leaders that make durable, efficient products designed to last decades. Carefully review the warranties, glass packages, frame materials, lead times, and pricing to determine the best option for your replacement window project.
Frequently Asked Questions (FAQ)
Some window brands considered comparable in quality and performance to Andersen include Pella, Marvin, Milgard, Jeld-Wen, and Simonton. But no brand offers an exact equivalent to Andersen’s patented Fibrex material.
Andersen and Pella regularly rank as the top window manufacturers overall based on product quality, energy efficiency, warranties, brand reputation, and customer satisfaction ratings. Marvin and Milgard are also excellent mid-tier brands.
For full window replacements, experts often recommend Andersen or Pella as the best brands. Milgard, Simonton, and Jeld-Wen are also very good mid-priced options. Consult professional window installers on the top brands for your climate and project needs.
Fibrex, vinyl, wood, and aluminum-clad wood windows from reputable brands like Andersen, Pella, and Marvin are built to last 30-40 years or longer with proper installation and maintenance. Avoid low quality vinyl windows that may warp, leak, and degrade faster.
Wrapping Up
We hope this detailed Gilkey and Andersen window comparison has provided insight into the key differences between these two excellent manufacturers. You can feel good about either brand, but weigh the pros and cons to determine which line best fits your budget and needs.
Investing in energy efficient replacement windows is a smart way to increase comfort, lower utility bills, and add value to your property. Be sure to get quotes from multiple window companies and read customer reviews before finalizing your purchase.