Double-hung windows can improve your home’s energy efficiency and curb appeal while saving you money on heating and cooling costs. Hereās a quick summary of five top-rated models, their features, and costs:
- Andersen 400 Series: Wood interior, vinyl exterior, Low-E glass, and custom design options. Price: $375ā$750 per window (+$100ā$500 installation).
- Milgard Essence Series: Wood interior, fiberglass exterior, dual/triple-pane glass, and 16 exterior colors. Price: $450ā$950 installed.
- Alpen Zenith ZR-9: Fiberglass frame, triple-pane glass, and industry-leading energy efficiency. Price: $715ā$1,000 installed.
- Simonton 9800 Impressions: Durable vinyl frame, Krypton gas-filled glass, and lifetime warranty. Price: $450ā$650 installed.
- Pella Encompass Vinyl: Affordable vinyl frames, Low-E glass, and optional smart features. Price: $480ā$700 installed.
Quick Comparison
| Model | Material | Energy Efficiency (U-Factor) | Price Range (Installed) |
|---|---|---|---|
| Andersen 400 Series | Wood/Vinyl | 0.30 | $475ā$1,250 |
| Milgard Essence Series | Wood/Fiberglass | 0.30 | $712ā$950 |
| Alpen Zenith ZR-9 | Fiberglass | 0.27 | $715ā$1,000 |
| Simonton 9800 Impressions | Vinyl | 0.28 | $450ā$650 |
| Pella Encompass Vinyl | Vinyl | 0.29 | $480ā$700 |
These options cater to different budgets and priorities, from energy savings to design flexibility. Choose based on your home’s needs, and consider professional installation to maximize energy efficiency.
What is the Best Material for Double Hung Window Frames? | Thermal King Windows
1. Andersen 400 Series
The Andersen 400 Series stands out as an excellent choice for those seeking energy-efficient windows with a touch of elegance. These windows combine a warm, natural wood interior with a tough vinyl exterior for durability and style.
Energy Performance Features:
- High-Performanceā¢ Low-E4Ā® glass: Helps keep your home warm in the winter by minimizing heat loss and cool in the summer by reducing heat gain.
- SmartSunā¢ glass: Adds extra thermal control while protecting against harmful UV rays.
- Triple-pane glass: Available in certain areas, offering even better insulation.
This series strikes a great balance between energy-saving features and versatile design options, making it adaptable to a variety of home styles.
Design and Materials: The 400 Series provides plenty of ways to tailor the look of your windows to fit your homeās aesthetic:
- Choose from 7 exterior colors, 3 interior finishes, or opt for natural unfinished pine.
- Pick from up to 9 hardware finish options.
- Custom sizing available in 1/8" increments, with maximum dimensions of 3’9" wide by 7’8" high.
- Add your personal touch with custom grille patterns.
| Component | Specification |
|---|---|
| Frame Core | Natural Wood |
| Exterior Cladding | Perma-ShieldĀ® Vinyl |
| Glass Options | Low-E4Ā®, SmartSunā¢, Triple-pane |
| Size Range | Custom to 3’9" Ć 7’8" |
| Style Options | Tilt-Wash, Woodwright |
Investment and Value: Prices for the Andersen 400 Series typically range from $375 to $750 per window, with installation costs adding another $100 to $500. On top of that, these windows could boost your homeās value by at least 15% [2][3].
According to a 2022 survey of U.S. contractors conducted by Andersen, the 400 Series clad wood windows are a favorite among professionals [1]. Their durability, especially in harsh weather conditions, and reliable performance make them a trusted choice. Letās move on to explore another leading option in this lineup.
2. Milgard Essence Series
The Milgard Essence Series combines the charm of traditional craftsmanship with the durability of modern materials. Featuring a solid wood interior and a weather-resistant fiberglass exterior, this series is designed to bring both beauty and practicality to your home. By minimizing the upkeep typically associated with wood windows, the Essence Series also delivers exceptional energy efficiency.
Energy Performance Features:
- SunCoatĀ® or SunCoatMAXĀ® Low-E glass coatings for improved insulation
- EdgeGardMAXĀ® spacer technology to reduce heat transfer
- Dual- or triple-pane configurations for enhanced thermal performance
- Argon-filled chambers to minimize heat loss
- Multi-chambered frame design for better energy control
These features work together to provide excellent thermal regulation while maintaining a sophisticated appearance. With U-factors ranging from 0.25 to 0.30, the Essence Series meets or exceeds ENERGY STAR standards [4].
Construction and Durability:
| Component | Specification |
|---|---|
| Interior Material | Clear Douglas Fir, Natural Pine, or Primed Pine |
| Exterior Material | Powder-coated Fiberglass |
| Color Options | 16 Designer Exterior Colors |
| Glass Options | Dual or Triple Pane |
| Frame Trim | Flush or Mitered Joints |
| Maximum Dimensions | Custom Sizes Available |
The advanced water management system protects the wood interior, ensuring long-lasting durability. This innovative design earned a spot in Professional Builder Magazine’s list of 100 most popular products in September 2018 [7]. Built to endure tough conditions, the Essence Series also supports a wide range of customizations.
Design Versatility:
The Essence Series offers plenty of options to match your personal style:
- Choose Clear Douglas Fir for a rich, natural finish.
- Opt for Natural Pine to create a warm, classic feel.
- Select Primed Pine if you prefer to paint your windows in custom colors.
The exterior is available in 16 designer colors, complemented by matching frame trim kits in Flat Casing or Brickmould profiles [5][8].
"We’re excited to see that Pro Builder readers want to learn more about Essence Series. With 16 exterior colors, even sightlines, and our innovative SmartTouchĀ® lock, it’s easy to see why builders and contractors in the industry are drawn to Essence Series, which is backed by the Milgard Full Lifetime Warranty." ā Jeremiah Noneman, Director of Marketing at Milgard Windows & Doors [7]
Investment and Value:
- Backed by a Full Lifetime Warranty, including Glass Breakage Coverage
- Equipped with PureViewĀ® screens, offering 15% more visibility than standard screens
- Features the SmartTouchĀ® lock system, which has earned the Arthritis Foundation‘s Ease-of-Use Commendation [6]
The Milgard Essence Series delivers a perfect blend of style, durability, and energy efficiency, making it a valuable addition to any home.
3. Alpen Zenith ZR-9
Proudly made in the USA, the Alpen Zenith ZR-9 sets a high standard for double-hung windows by combining advanced thermal efficiency with durable construction.
Outstanding Performance Metrics
The ZR-9’s design delivers impressive energy efficiency, as shown in these key performance metrics:
| Performance Metric | Rating | Industry Context |
|---|---|---|
| Insulation Value | Up to R-9.1 | Triple the Energy Star standards |
| UV Protection | 99.5% | Superior sun protection |
| Air Infiltration | 0.01 CFM/sq ft | Exceptional air tightness |
| Sound Attenuation | Up to STC 39 | Improved noise reduction |
These numbers highlight why the ZR-9 is a standout in its category.
Precision Engineering and High-Quality Materials
The ZR-9 owes its exceptional performance to advanced technology and premium materials:
- Frames made from super-insulated pultruded fiberglass provide excellent structural stability.
- Double film, triple chamber insulated glass with four low-e coatings maximizes thermal efficiency.
- Closed-cell foam insulation in the frame and sash cavities ensures optimal insulation.
- High-performance spacers filled with inert gas further enhance energy efficiency.
The fiberglass frameās minimal expansion and contraction – 800% less than vinyl – adds to its reliability [9].
Built to Last
Certified by the AAMA for wind, water, and air resistance, the ZR-9 is designed to withstand harsh conditions. Its fiberglass frame also extends its lifespan by 38% compared to vinyl windows [9].
"At Alpen, we set the bar for thermal efficiency with industry-leading performance ratings, far surpassing Energy Star standards and meeting the most rigorous Passive House requirements." [9]
This level of craftsmanship ensures long-term durability and practical benefits for homeowners.
Energy Efficiency at a Reasonable Price
Despite its premium performance, the Zenith ZR-9 offers excellent energy efficiency at a competitive cost.
Commitment to Sustainability
The ZR-9 isnāt just about performance; it also leads in eco-conscious design. Itās the first North American window certified under the Living Building Challenge Declare label as "Red List Approved" [9]. Alpen achieves this through low-VOC paints and finishes, mold prevention features, and environmentally friendly manufacturing practices.
With its blend of energy efficiency, durability, and sustainable design, the Alpen Zenith ZR-9 is an excellent choice for homeowners looking to invest in high-performance, eco-friendly windows.
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4. Simonton 9800 Impressions
The Simonton 9800 Impressions series combines energy efficiency with a sleek design, making it a great choice for enhancing a home’s appearance and performance.
Energy-Saving Features
This window series is packed with features designed to reduce energy consumption, including:
- Triple weatherstripping to block air leaks effectively
- Super Sensor Glass technology for improved insulation
- Krypton gas-filled chambers for enhanced thermal performance
These components work together to ensure long-lasting efficiency and reliable functionality.
Performance Overview
| Category | Rating | Details |
|---|---|---|
| Energy Efficiency | 83/100 | Surpasses standard efficiency levels |
Durability and Design
The 9800 Impressions features a sturdy vinyl frame that requires little upkeep. For added durability, you can opt for upgrades like sill reinforcement, laminated glass, or impact-resistant materials.
Personalization Options
Tailor the look of your windows with a range of interior colors, exterior finishes, and hardware styles to perfectly complement your home.
Cost and Warranty
Pricing for the 9800 Impressions is competitive. Standard-sized windows range between $225ā$350, with installation costs averaging $75ā$250. This brings the total to approximately $450ā$650 per unit.
What sets this series apart is its comprehensive lifetime warranty. It covers essential components such as the vinyl frame, hardware, screen frame, and even glass breakage. Along with its strong thermal performance and durability, the 9800 Impressions offers peace of mind and long-term value [10].
5. Pella Encompass Vinyl
The Pella Encompass Vinyl series combines energy efficiency, durability, and an attractive design – all at a price point that wonāt break the bank. Built with precision welding, these windows are designed to resist warping over time [11].
Energy Performance
The Encompass series meets or surpasses ENERGY STARĀ® standards in all 50 states [11][12]. Here’s what makes these windows energy-efficient:
| Feature | What It Does |
|---|---|
| Multi-chambered Frames | Boosts insulation and thermal control |
| Metal-reinforced Interlocking | Reduces air leaks |
| Advanced Low-E Glass with Argon | Maintains indoor temperatures |
| Weather Protection System | Guards against drafts and water leaks |
Design and Functionality
These windows arenāt just functional – theyāre thoughtfully designed to look great and be easy to use. Features include:
- Solid-color frames that hide scratches and keep their appearance intact
- Three classic color choices: White, Almond, and Fossil [14]
- Grilles-between-the-glass for added curb appeal
- Tilt-in sashes, making cleaning a breeze from inside your home
Cost and Value
Pella Encompass windows are priced between $200 and $900 per window [15]. Beyond the upfront cost, they offer long-term savings and value:
- Potential to cut utility bills by up to 12% thanks to improved energy efficiency [13]
- Over 60% of the cost can be recouped when selling your home [13]
- Low-maintenance design – no painting or refinishing required
For those looking to modernize their home, the series also includes smart technology options.
Smart Features
Optional wireless sensors, available through Pella Insynctive, allow for enhanced home monitoring [14]. Additionally, the Low-E glass coating helps protect furniture and flooring by blocking UV rays that can cause fading [14].
"With Encompass by Pella windows, you’ll get low-maintenance windows backed by the brand you know and trust, at a price that is easy on the budget." – Pella [11]
The Pella Encompass Vinyl series stands out for its durability, energy efficiency, and stylish design, making it an excellent option for homeowners seeking quality window replacements.
Window Comparison Guide
Explore essential features, performance metrics, and costs to help you find the perfect double-hung windows for your home.
Energy Performance Comparison
To make an informed decision, it’s crucial to evaluate energy efficiency. Here’s how some popular window models stack up:
| Window Model | U-Factor | SHGC | Energy Star Certified |
|---|---|---|---|
| Andersen 400 Series | 0.30 | 0.23 | Yes |
| Milgard Essence Series | 0.30 | 0.23 | Yes |
| Alpen Zenith ZR-9 | 0.27 | 0.21 | Yes |
| Simonton 9800 Impressions | 0.28 | 0.22 | Yes |
| Pella Encompass Vinyl | 0.29 | 0.23 | Yes |
Did you know? Replacing single-pane windows can save you up to $465 annually on energy bills.
Material and Style Options
The material and design of a window can significantly impact both aesthetics and maintenance needs. Here’s a quick breakdown of what each series offers:
- Andersen 400 Series: Classic wood frames for a timeless look.
- Milgard Essence Series: A blend of wood and fiberglass for durability and style.
- Alpen Zenith ZR-9: Built with tough fiberglass for long-lasting performance.
- Simonton 9800 Impressions: Low-maintenance vinyl construction.
- Pella Encompass Vinyl: Affordable, easy-to-maintain vinyl frames.
Each of these models also offers customizable design options to match your home’s exterior and enhance curb appeal.
Cost Analysis (2025 Pricing)
Understanding total costs is key when budgeting for new windows. Here’s a breakdown of pricing for popular models:
| Window Model | Window Cost | Installation Cost | Total Cost Range |
|---|---|---|---|
| Andersen 400 Series | $235 | $381 | $616 – $850 |
| Milgard Essence Series | $287 | $425 | $712 – $950 |
| Alpen Zenith ZR-9 | $300+ | $415 | $715 – $1,000 |
| Simonton 9800 Impressions | $375 | $495 | $870 – $1,200 |
| Pella Encompass Vinyl | $185 | $295 | $480 – $700 |
On average, replacing a window in 2025 costs between $614 and $1,309, based on market trends [19].
Long-Term Value Considerations
When choosing windows, itās not just about the upfront price. Long-term value plays a big role, too:
- Energy Savings: ENERGY STAR-certified windows can lower utility bills by an average of 12% [19].
- Maintenance Needs: Vinyl and fiberglass frames require less upkeep than wood, saving you time and effort.
- Durability: Fiberglass windows often last longer and withstand harsh weather better [18].
- Installation Costs: Labor makes up 30-50% of the total installation expense [18].
All the models listed here meet or exceed California Title 24 energy efficiency standards as of May 2025 [16]. These details ensure you’re investing in windows that balance cost, performance, and longevity.
Recommendations by Need
When picking double-hung windows, your choice should reflect your specific priorities. Use this guide to align your needs with the best recommendations. These suggestions build on the detailed performance and design insights shared earlier.
For Maximum Energy Savings
If energy efficiency tops your list, opt for windows with low U-factors and Solar Heat Gain Coefficients (SHGC). Switching from single-pane windows could save you as much as $583 annually [21]. Fiberglass frames are an excellent choice, offering superior insulation and boosting overall performance [20].
For Design Flexibility
For a balance of style and adaptability, consider models like the Andersen 400 Series. These feature Low-E4 glass paired with classic wood frames, creating a timeless aesthetic. If youāre aiming for a modern edge, dark frame options are a great way to elevate your homeās curb appeal [20][22].
For Budget-Conscious Homeowners
If youāre working within a budget, the Pella Encompass Vinyl Series is a solid option. These ENERGY STARācertified windows deliver impressive energy performance at an affordable price, with installed costs significantly below the national average of $600 per window [17].
Quick Decision Guide
Hereās a handy summary to help you make a fast, informed choice:
| Primary Need | Recommended Focus | Key Benefit |
|---|---|---|
| Energy Efficiency | High-performance design | Lower energy bills |
| Curb Appeal | Versatile aesthetics | Enhanced home appearance |
| Value for Money | Cost-effective models | Quality installation at a lower cost |
| Durability | Robust materials | Long-lasting performance |
Pro Tips:
- Plan installations during off-peak seasons to snag better deals.
- Always check for ENERGY STAR certification, no matter which model you choose.
- Professional installation is key to unlocking the full energy-saving potential of your windows.
- Factor in your local climate when deciding on glass coatings and frame materials.
FAQs
What should I look for in double-hung windows to ensure energy efficiency and great design?
When picking double-hung windows, itās important to focus on a few critical factors to ensure they align with your energy efficiency goals and design preferences:
- Glass Options: Look for double or triple-pane glass with low-emissivity (low-E) coatings. These coatings help minimize heat transfer, keeping your home cozy in the winter and cool in the summer.
- Frame Material: Materials like vinyl and fiberglass are excellent choices because they provide strong insulation and are built to last. Steer clear of aluminum, as it tends to transfer heat and cold more easily.
- Quality Installation: Even the most energy-efficient windows wonāt perform as intended if theyāre not installed properly. Poor installation can lead to air leaks, which compromise insulation and energy savings.
Lastly, donāt overlook the visual appeal of your windows. Double-hung designs are not only practical but also versatile, blending well with a wide range of architectural styles while adding a touch of charm to your homeās exterior.
What are the typical installation costs for double-hung windows, and what factors affect the price?
The cost to install double-hung windows typically falls between $250 and $975 per window, which includes labor. On average, homeowners spend about $608 per window, though the actual price can vary depending on factors like the size of the window, the type of frame material, and any added customizations.
For standard installations, prices usually range from $300 to $850 per window. If you opt for premium materials like wood or specialty finishes, expect the cost to rise. On the other hand, simpler vinyl options are generally more affordable. When planning your budget, consider these variables to strike the right balance between functionality and style.
Why is fiberglass a better choice than vinyl or wood for window frames when it comes to durability and maintenance?
Fiberglass window frames stand out as a fantastic option due to their exceptional durability and low maintenance needs. Unlike wood, which can rot and requires regular upkeep like painting or sealing, fiberglass resists warping, swelling, and shrinking – even under extreme weather conditions. This makes it a reliable choice for homes in areas with unpredictable or fluctuating temperatures.
On top of that, fiberglass frames boast an impressive lifespan of over 50 years, far exceeding the 20ā30 years you get with vinyl and outperforming wood, which often requires more frequent repairs. Another perk? Fiberglass doesnāt need to be painted or sealed, saving you both time and money in the long run. If youāre after a window frame thatās built to last, easy to care for, and looks sleek, fiberglass checks all the boxes.
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