How much do energy-efficient windows cost?
How much do energy-efficient windows cost?
$400 – $3,000 average cost per window installed
Energy-efficient windows cost
Energy-efficient windows cost $400 to $3,000 per window, including the materials and professional installation. This wide variation in the cost of energy-efficient windows is due to many contributing factors, including the window size and style, frame material, number of panes, specific glass upgrades, and whether the installation involves any structural repairs.
| Number of windows | Average total cost with installation |
|---|---|
| 1 | $400 – $3,000 |
| 2 | $800 – $6,000 |
| 5 | $2,000 – $15,000 |
| 10 | $4,000 – $30,000 |
| 15 | $6,000 – $45,000 |
| 20 | $8,000 – $60,000 |
| 25 | $10,000 – $75,000 |
| 30 | $12,000 – $90,000 |
| 35 | $14,000 – $105,000 |
What are energy efficient windows?
Energy-efficient windows are designed to minimize heat transfer between the interior and exterior of a home. Most energy-efficient windows contain several features:
Double or triple-pane glass
Low-emissivity (Low-E) coatings
Gas fills between panes (usually argon or krypton)
Warm edge spacers
These features work together to reduce heat loss in winter and heat gain in summer, leading to lower energy bills and improved comfort.
When selecting energy-efficient windows, consider the home's shading and orientation, as these factors also contribute to a window's energy performance. Consult a local window expert to help you choose the best type and features for your home.
What affects energy-efficient window prices?
The following table shows a breakdown of the material and installation costs for energy-efficient windows:
| Factor | Average cost per window |
|---|---|
| Materials | $300 – $2,200 |
| Labor | $100 – $800 |
| Total cost installed | $400 – $3,000 |
Several factors influence the window replacement cost when upgrading to more energy-efficient models:
Size: Window size significantly impacts the overall cost of any type of window installation. In general, the larger the window, the higher the cost.
Old window removal & disposal: Removing and disposing of the home's old windows costs $50 to $250+ per window, depending on the location and installation company.
Repairs: Window replacement often results in necessary repairs to the surrounding interior and exterior structural components, adding to the overall cost.
Siding repair costs $200 to $1,100, depending on the damage.
Drywall repair costs $100 to $400 on average for each hole or crack.
Repainting the trim costs $25 to $150 per window.
Always confirm exactly what the contractor's window installation estimate includes, as seemingly small "per window" costs can add up quickly when you're replacing all or several of the windows in your home.
Window style
When upgrading to energy-efficient windows, you may have several types of windows to update throughout your home. Different window styles come with varying price points. The table below details several window styles and their average costs:
| Window type | Average cost (per window)* |
Description |
|---|---|---|
| Bay window cost | $2,000 – $6,000 | Group of 3 angled windows extending outside the house wall |
| Bow | $2,000 – $6,000 | Arc shape grouping of 4 to 6+ windows that extend outside the house wall |
| Casement window cost | $400 – $1,200 | Side-hinged window that cranks to open outward |
| Double-hung | $400 – $2,000 | Two operational sashes that slide up or down |
| Single-hung | $300 – $1,500 | One operational sash that can be raised and lowered |
| Fixed picture window cost | $450 – $1,500 | Stationary picture window that does not open |
| Slider | $400 – $2,000 | Window on a top and bottom track that opens horizontally, usually with one fixed and one operational side |
| Hurricane window cost | $400 – $1,200 | Heavy-duty window frame with impact-resistant glass to withstand Category 5 storms |
*Prices for double-pane window with installation
Frame material
The choice of frame material affects both cost and energy efficiency. The table below details the average cost and relative efficiency for the most common window frame materials:
| Frame material | Energy efficiency | Average cost per window installed |
|---|---|---|
| Thermally improved aluminum | ★ | $250 – $1,000 |
| Clad wood | ★★ | $350 – $2,500 |
| Vinyl | ★★★ | $250 – $2,000 |
| Fiberglass composite | ★★★★ | $550 – $3,000 |
Aluminum is best reserved for warmer climates in non-coastal areas. Although they are the least efficient, energy-efficient aluminum framing contains a thermal bridge preventing the interior and exterior frames from touching, stopping potential heat transfer.
Clad wood energy-efficient windows have a wooden interior frame and an aluminum, vinyl, or fiberglass exterior frame, combining the warm appearance of wood inside the home with a longer-lasting, lower maintenance frame material on the outside.
Vinyl window frames are often injected with insulating foam to improve their energy efficiency. Vinyl windows with the right features offer a good balance between cost and efficiency.
Fiberglass composite windows are stronger and last longer than most other window frame materials but may be cost-prohibitive.
Double-pane vs. triple-pane
Double-pane windows cost $400 to $2,000 with installation, while triple-pane windows cost $450 to $3,000. Triple-pane windows are more efficient and offer better sound reduction, but their heavier weight requires a thicker, more robust frame, resulting in reduced glass area and higher installation costs.
| Factor | Double-pane | Triple-pane |
|---|---|---|
| Cost (per window installed) | $400 – $2,000 | $450 – $3,000 |
| Energy efficiency | 30% savings over single-pane | 50% energy savings over single-pane |
| Lifespan | 15 – 20 years | 20 – 30+ years |
| Insulation R-value | 7 – 8 | 3 – 3.8 |
| Safety | Strong | Stronger |
| Noise reduction | 30% noise reduction over single-pane | 50% noise reduction over single-pane |
Homes on loud, busy streets and those in cold climates with harsh, long winters benefit the most from upgrading to triple-pane windows. For most homes, energy-efficient double-pane windows offer the best balance of cost vs. value.
Glass enhancements
Modern energy-efficient windows often use specialized coatings and gas fills between glass panes:
Low-emissivity coatings: Low-e glass coatings are thin, virtually invisible metallic layers applied to glass that reflect infrared heat, reduce heat transfer, help keep the home cooler in summer, and prevent heat loss in winter.
Gas fills: Filling the space between the glass panes with inert gases like argon and krypton provides better insulation than standard air, reducing heat transfer and improving overall window energy efficiency. Argon gas is the most popular and cost effective. Krypton gas costs more but offers superior insulation.
When considering glass upgrades, balance the initial cost with long-term energy savings and comfort improvements.
Installation labor
The labor cost to install energy-efficient windows ranges from $100 to $500 on average for double-pane glass. Heavier triple-pane windows are more challenging to install, often costing up to $800 for the labor. Many window installations require additional siding or drywall repairs, further increasing labor costs.
Window replacement tax credit
Homeowners can benefit from a federal tax credit for energy-efficient window installations. The current credit is 30% of the cost, up to $600 total for ENERGY STAR-qualified windows and skylights. Always check the latest regulations as tax credits frequently change. Also, check for state or local incentives for additional savings.
For even more savings, check out our in-depth guide for a breakdown of all the potential tax credits for energy-efficient home improvements.
Benefits of energy-efficient windows
Energy-efficient windows offer average potential energy savings of 20% to 50% compared to standard windows, a significant contribution to your home energy efficiency. Besides lower energy bills, the benefits of installing energy-efficient windows include:
Improved comfort
Reduced interior condensation
UV protection for furnishings
Increased home value
Noise reduction
FAQs about energy efficient windows
Are energy-efficient windows worth it?
Yes, energy-efficient windows can significantly reduce energy bills and improve home comfort. The initial investment is often recouped through energy savings over time. Consider getting a home energy audit to help you determine which energy-efficient upgrades will have the biggest impact on your home.
Are energy efficient windows tax-deductible?
While not directly tax-deductible, energy-efficient windows may qualify for federal tax credits. Consult a tax professional for the most up-to-date information.
Which is more efficient, single-hung or double-hung windows?
Double-hung windows are more energy-efficient as you can open both sashes for better ventilation. However, a window's energy efficiency depends more on the glass and frame quality than the window style.
Do energy-efficient windows increase home value?
Yes, energy-efficient windows can increase home value. The benefits of lower energy bills, reduced noise, and improved home comfort are attractive to many potential buyers. The exact value increase depends on the local real estate market, neighborhood standards, and the home's overall condition.
What are the most energy efficient windows?
Triple-pane windows with Low-e coatings, gas fills, and insulated frames are typically the most energy-efficient options available. However, the best energy-efficient window for your home varies depending on your home and climate.
Are glass block windows energy efficient?
Glass block windows can be energy-efficient, especially when filled with insulating materials. However, they generally don't match the efficiency of modern double or triple-pane windows.
Getting estimates from window companies
Follow these guidelines to help you find a qualified window company near you for your next energy-efficient upgrade:
Only hire a company that is licensed, bonded, and insured.
Compare estimates with the same frame material, glass type, and features from at least three companies.
Avoid the lowest quotes as this often indicates lower quality work or lack of experience.
Check their reviews on trusted websites like HomeGuide and Google.
Get an estimate, contract, and warranty details in writing before making any payments.
Don't make the final payment until the installation is complete.
Questions to ask a window installer
Ask these important questions to ensure you hire a competent and experienced window installer:
How long have you been installing windows in this area?
What type of windows do you recommend for my home?
Does the estimate include all materials, labor, cleanup, and any other fees?
Are there any potential additional costs I should be aware of?
What if my home's siding or window framing is damaged during the installation?
What are the best energy-efficient windows that fit my budget?
How long will the installation take?
What exactly does the warranty cover, and how long is it?
What's the best time of year to schedule the installation?
Do you ever run seasonal discounts or other promotions?
Do you offer financing?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.