Windows are one of the most important features of a home. Not only do they let in natural light and fresh air, they also impact energy efficiency, noise levels, durability, and curb appeal.
With so many window brands on the market, it can be tricky to decide which option is right for your home. Two popular brands to consider are Thermo-Tech and Andersen.
Both offer high-quality windows, but there are some key differences between the two. This comprehensive guide compares Thermo-Tech and Andersen windows to help you make an informed decision.
A Brief Comparison Table
| Feature | Thermo-Tech | Andersen |
| Frame Materials | Vinyl, fiberglass | Fibrex, wood-clad, vinyl |
| Warranties | Lifetime limited | 20-year limited |
| Manufacturing Location | Portland, OR | Bayport, MN |
| Est. Year | 1946 | 1903 |
| Product Lines | Vinyl, fiberglass, specialty, doors | Fibrex, wood-clad, vinyl, specialty, doors |
| Glass Technology | SunShield low-E | High-Performance Low-E4 |
| Energy Efficient | Yes | Yes |
| Custom Options | Yes | Semi-custom |
| Finishes | Variety of vinyl colors | Limited exterior colors |
| Hardware Selection | Good | Excellent |
| Wood Interiors | No | Some lines |
| DIY Installation | Not recommended | Not recommended |
| Purchase Locations | Dealer network | Dealers and home centers |
Overview of Thermo-Tech Windows
Founded in 1946, Thermo-Tech is a family-owned and operated business located in Portland, Oregon. They manufacture a wide selection of vinyl and fiberglass windows and doors. Here’s an overview of their main product lines:
- Vinyl Windows – Thermo-Tech’s vinyl windows feature premium vinyl frames and sashes for low maintenance, high insulation, and durability. They use premium Virgin Vinyl that is resistant to cracking, pitting, peeling, and warping.
- Fiberglass Windows – For superior strength and thermal performance, Thermo-Tech offers fiberglass windows. Their fiberglass is 8x stronger than vinyl and won’t warp or swell in humid environments.
- Specialty Windows – Thermo-Tech has specialty windows including bay and bow windows, glass block windows, and architectural shapes. Their custom capabilities allow you to create one-of-a-kind windows.
- Door Lines – In addition to windows, Thermo-Tech manufactures steel, fiberglass, and vinyl doors in numerous styles. This includes French doors, patio doors, entry doors, and storm doors.
The company uses innovative technologies like SunShield glazing, IntelliCore insulating chambers, and concealed mainframe screens. Thermo-Tech windows come with a lifetime limited warranty.
Overview of Andersen Windows
Operating since 1903, Andersen is one of the most established and largest window and door manufacturers in the United States. They are headquartered in Bayport, Minnesota and offer these main product lines:
- Fibrex Windows – Andersen’s patented Fibrex material combines the strength of wood with the low-maintenance of vinyl. Fibrex windows have a durable, long-lasting finish.
- Wood-Clad Windows – For a classic aesthetic, Andersen wood-clad windows feature natural wood interiors and protective aluminum-clad exteriors. They are available with either pine or oak interiors.
- Vinyl Windows – The vinyl used in Andersen windows is thicker than industry standards for superior durability and performance. Their vinyl-frames have strong welded corners.
- Specialty Windows – Unique window designs offered by Andersen include semi-custom shapes, bay windows, bow windows, and picture windows. They work with architects for fully custom designs.
- Door Lines – Andersen manufactures hinged patio doors, gliding patio doors, storm doors, and fiberglass entry doors. Their doors promote energy efficiency and security.
Key innovations include High-PerformanceTM Low-E4® glass, Stormwatch® storm panels, and sealed weatherstripping. Andersen products are backed by a 20/10-year limited warranty.
Comparing Performance Factors
From thermal efficiency to structural integrity, windows have a major impact on a home’s functionality and comfort. Here’s how Thermo-Tech and Andersen compare in key performance areas:
Energy Efficiency
Thermo-Tech and Andersen both offer ENERGY STAR® certified windows that meet or exceed the latest thermal performance standards. Some specifics:
- Glass – Thermo-Tech uses SunShield glazing with low-E coatings to block UV rays and improve insulation. Andersen’s High-Performance Low-E4 glass has three layers of silver coating for excellent thermal control.
- Frames – The companies use multi-chambered vinyl and Fibrex frame designs with insulating air pockets. Thermo-Tech has IntelliCore chambers while Andersen uses Fibrex’s inherent insulating properties.
- Gas Fills – Their double-pane windows can be filled with argon or krypton gas for superior insulation over regular air-filled units.
- Ratings – Both achieve U-Factor ratings as low as 0.27 and Solar Heat Gain Coefficients of just 0.22 for energy savings.
When properly installed, Thermo-Tech and Andersen windows promote energy efficiency in all climate zones. Key factors like glass coatings, gas fills, weatherstripping, and multi-chamber frames enable excellent thermal performance.
Durability
Windows endure wear-and-tear from weather, daily use, and more. Strong, resilient materials yield the most durable windows. Here’s how Thermo-Tech and Andersen compare:
- Frame Materials – Thermo-Tech’s virgin vinyl withstands cracking and warping better than many vinyls. Their fiberglass frames are 8x stronger than vinyl. Andersen’s Fibrex material is remarkably strong and resistant to dings, decay, and moisture damage. Their wood-clad windows are protected by a tough aluminum exterior.
- Frame Construction – Both companies use fusion-welded frame corners for superior seam strength. The multi-chambered frame designs also boost structural integrity.
- Hardware – Stainless steel hardware, like heavy-duty locking mechanisms and hinges, resists corrosion and enhances durability.
- Testing – Extensive structural load testing during R&D ensures the windows meet wind pressure and impact resistance standards for any climate.
- Warranties – Thermo-Tech offers lifetime limited warranties on vinyl and fiberglass windows while Andersen has 20-year coverage, reflecting their confidence in the durability.
Overall, both Andersen and Thermo-Tech utilize robust frames, structural reinforcements, quality hardware, and advanced engineering to ensure their windows stand the test of time.
Appearance
Windows also have an aesthetic impact on your home’s exterior. Here are some appearance considerations:
- Curb Appeal – The sleek lines and proportional profiles of Thermo-Tech and Andersen windows maintain traditional styling. Their windows are available in numerous colors to complement your home’s look.
- Frame Types – Thermo-Tech offers vinyl and fiberglass options in custom sizes and combinations. Andersen has Fibrex and wood-clad lines with attractive wood interiors.
- Hardware Styles – Traditional, contemporary, or minimalist hardware styles are available from both brands to match your home’s decor.
- Interior Looks – Wood species like pine and oak give Andersen’s wood-clad windows a seamless interior look. Thermo-Tech’s vinyl and fiberglass have attractive neutral interiors.
- Accessories – Accent your windows with grilles, exterior trim, sills, jamb extensions, and more available from both companies.
With size, configuration, color, hardware, and accessory options, Thermo-Tech and Andersen allow you to achieve a cohesive aesthetic both inside and out.
Comparing Prices and Warranties
When making a major home investment, cost is often a priority. Here is how Thermo-Tech and Andersen compare:
- Pricing – Thermo-Tech is generally more budget-friendly than the premium Andersen brand. However, both offer products at various price points.
- Vinyl vs. Fibrex/Fiberglass – For both brands, vinyl units are the most affordable followed by fiberglass and Fibrex as the premium options.
- Basic vs. High-End Lines – Entry-level vinyl lines from Thermo-Tech and Andersen are more economical than top-tier offerings with upgraded features.
- Warranties – Thermo-Tech provides lifetime limited warranties on vinyl and fiberglass windows. Andersen has 20-year limited warranties. Both indicate quality and longevity.
- Professional Installation – Installation services may add to the overall project cost. Both manufacturers recommend using certified installation pros. DIY is not advised.
With either brand, the total price depends on the type of window, size, features, accessories, and installation. Get an itemized, line-item quote for the most accurate pricing comparison.
Thermo-Tech Pros and Cons
Thermo-Tech offers excellent windows, but they aren’t perfect for every home. Here are some of the main benefits and potential drawbacks:
Pros
- Budget-friendly price points
- Lifetime limited warranties
- Variety of vinyl color options
- Minimal maintenance exteriors
- Custom sizing and shapes
- Exceptional thermal performance
- Easy to clean
- Higher UV protection
- Non-conductive frames
Cons
- Less name recognition than Andersen
- Not as many high-end options
- Limited selection of hardware styles
- Available through dealers rather than big box stores
- Vinyl can seem lightweight for some
For homeowners that want quality vinyl or fiberglass windows at competitive prices backed by great warranties, Thermo-Tech is a brand worth considering.
Andersen Pros and Cons
Andersen windows also have numerous pros and cons:
Pros
- Industry leader with long history
- Excellent brand name recognition
- High quality materials and construction
- Innovative glass technologies
- Unparalleled structural integrity
- Beautiful wood interiors on some lines
- Available in many home improvement stores
- 20-year limited warranties
- Superior energy efficiency
Cons
- More expensive than many brands
- Shorter warranties than some competitors
- Wood interiors require more maintenance
- Heavy windows may need professional installation
- Limited exterior color selection
- Acrylic finishes can scratch or peel over time
For those wanting beautiful, high-end windows from an industry leader, Andersen windows are sure to impress. The brand does come at a premium cost though.
Frequently Asked Questions (FAQ)
Yes, Thermo Tech makes excellent quality vinyl and fiberglass windows. Their use of premium virgin vinyl, fusion-welded corners, multi-chamber frames, and advanced glazing demonstrates quality materials and construction. Thermo Tech windows achieve ENERGY STAR certification and are backed by favorable lifetime limited warranties. For homeowners wanting energy-efficient, low-maintenance, and affordably priced windows, Thermo Tech is a great brand to consider.
Some of Andersen’s biggest competitors include Pella, Marvin, and JELD-WEN. After Andersen, Pella is the second largest window and door manufacturer in America. They are known for high-quality wood, vinyl, fiberglass, and aluminum products. Marvin is another premium brand offering made in the USA wood, fiberglass, and aluminum windows and doors. JELD-WEN manufactures vinyl, wood, aluminum-clad, and fiberglass products at more affordable price points than Andersen. While Andersen leads in brand recognition and market share, these companies also make excellent windows that compete with Andersen’s quality and performance.
Some brands that offer windows comparable to Andersen in terms of quality and performance include:
Pella – Known for beautiful architectural styles, innovative technologies, and high-grade materials.
Marvin – Made in the USA with exceptional craftsmanship and energy efficiency.
Milgard – Top-rated fiberglass and vinyl windows with premium features.
JELD-WEN – Offers long warranties, custom designs, and reliable windows at lower prices.
Simonton – Budget-friendly vinyl windows with excellent warranties and ratings.
Kohler – Upscale windows and doors featuring quality craftsmanship.
While no two brands are exactly alike, these companies manufacture windows that can compete with Andersen in areas like durability, appearance, energy savings, warranties, and advanced glass technologies. They offer similar benefits at a range of price points.
Andersen windows are on the pricier end for replacement windows, but you are paying for excellent quality in materials and construction. Their use of Fibrex material, storm-resistant glass technologies, oak and pine wood interiors, proprietary weather stripping, and top-tier manufacturing result in exceptional performance and longevity. While more budget-friendly options exist, Andersen’s proven reputation, innovations, and craftsmanship justify the increased cost for many homeowners. The investment can pay off in the long run with lower maintenance costs, better energy efficiency, and improved home resale value. However, your budget and needs should dictate which brand is the right fit. Less expensive options from quality brands like Thermo-Tech can also make great replacements.
Final Thoughts
When shopping for new windows, key considerations include your budget, aesthetic preferences, performance needs, and expectations for longevity. Both Thermo-Tech and Andersen manufacture excellent products using advanced technologies and robust construction.
Thermo-Tech is ideal for homeowners wanting quality vinyl and fiberglass windows at affordable prices with outstanding warranties. Andersen is the premium choice made with top-tier materials and innovative features, though at a higher cost.
Review the pros and cons for each brand carefully. Replacement windows are a major investment, so take time to choose windows that truly fit your home.