How much do triple-pane windows cost to install or replace?
$450 – $3,000 cost per window installed
$6,750 – $60,000 average cost for whole house (15 – 20 windows)
Average triple-pane window cost
Triple-pane windows cost $450 to $3,000 per window installed. The cost of triple-pane windows includes $350 to $2,200 per window for the unit plus $100 to $800 per window for installation labor. Triple-glazed windows are more energy-efficient but more expensive than standard double-glazed windows.
|Number of windows||Average total installed cost|
|1||$450 – $3,000|
|2||$900 – $6,000|
|5||$2,250 – $15,000|
|10||$4,500 – $30,000|
|15||$6,750 – $45,000|
|20||$9,000 – $60,000|
|25||$11,250 – $75,000|
|30||$13,500 – $90,000|
Cost data is from research and project costs reported by HomeGuide members.
In comparison, the average window replacement cost is $400 to $2,000 per window for standard windows with double-pane glass.
Triple-pane window price by type
Triple-pane windows are manufactured in the same styles as double-pane windows, but the additional pane of glass increases the unit price. The extra glass and filler also increase the weight of the windows, making them more costly to install than double-pane windows.
|Window type||Average installed cost per window||Description|
|Awning||$1,000 – $1,200||Hinged on the top and cranks open from the bottom|
|Bay window cost||$2,000 – $6,000||Group of 3 windows angled to extend outside the house wall|
|Bow||$3,500 – $9,000||Arc-shaped window made by grouping 4 or more windows together|
|Casement window cost||$400 – $1,500||Hinged on the sides and cranks to open outward|
|Double-hung||$450 – $3,000||Two operating sashes that slide up or down|
|Single-hung||$350 – $2,000||One operating sash that can be raised and lowered|
|Fixed / Picture window cost||$450 – $1,500||Stationary picture window that does not open|
|Slider||$440 – $2,800||Opens horizontally along a top and bottom track, with one fixed panel and one operable side|
|Hurricane window cost||$400 – $1,200||Features a heavy-duty frame with impact-resistant glass designed to withstand a Category 5 storm|
Triple-pane vs. double-pane windows
Triple-pane windows have three panes of glass, while double-pane windows have two panes. Triple-glazed windows are more expensive, energy efficient, reduce noise better, and have a longer lifespan. Double-pane windows cost $400 to $2,000 per window installed.
|Cost (per window installed)||$450 – $3,000||$400 – $2,000|
|Energy efficiency||50% energy savings over single-pane||30% savings over single-pane|
|Lifespan||20 to 30+ years||15 to 20 years|
|Insulation R-value||3 – 3.8||7 – 8|
|Noise reduction||50% noise reduction over single-pane||30% noise reduction over single-pane|
Cost factors for triple-pane windows installation
A triple-pane window costs $350 to $2,200 for the window alone, making up about 70% to 75% of the total project cost.
|Factor||Average cost per window|
|Materials||$350 – $2,200|
|Labor||$100 – $800|
|Total installed cost||$450 – $3,000|
Other factors that affect the cost include:
Window size – Triple-pane glass weighs 25% to 50% more than double-pane glass, which often increases the number of installers needed, especially when installing bigger windows.
Window location – High windows that require scaffolding and windows blocked by kitchen or bath fixtures take longer and cost more to install.
Window type – Bow windows have 4 or more panels of glass, making them the most expensive to buy and install. Smaller windows are cheaper to buy and easier to install.
Labor cost to install triple-pane windows
Labor costs to install triple-pane windows run from $100 to $800 per window or around $50 per hour per installer, with more installers needed to install the heavier glass. Window replacement may also incur additional costs, including:
Permits cost $50 to $300 for small jobs including window replacement.
Painting window trim and frames cost $25 to $150 per window.
Drywall repair costs $100 to $400 per hole or crack.
Siding repair costs $200 to $1,100, depending on the extent of the damage.
Cost of triple-pane windows by material
Wood and fiberglass window frames cost more than cheaper vinyl and aluminum frames. However, wood and fiberglass offer more customization options.
|Window material||Average installed cost per window||Pros||Cons|
|Aluminum||$250 – $850||
|Fiberglass||$550 – $2,100||
|Steel||$500 – $5,500||
|Vinyl||$250 – $1,500||
|Wood||$350 – $3,000||
Triple-pane window add-ons and upgrades
Adding upgrades like window coatings and tinting will make the triple-pane windows even more energy-efficient but also more expensive. Some common window add-ons and upgrades include:
Maintenance & repairs:
Privacy & protection:
Triple-pane window manufacturers
Most well-known window companies make energy-efficient, triple-pane windows, including the popular Andersen, Marvin, and Pella brands. Costs vary by manufacturer, material, and window style.
|Window brand||Average installed price per window||Details|
|Andersen windows cost||$400 – $4,000||Manufactures mostly Fibrex wood composite, but also wood, vinyl, aluminum, and fiberglass windows|
|Marvin windows cost||$800 – $2,000||Manufactures mostly Ultrex high-density fiberglass, but also sell wood, and aluminum window|
|Pella windows cost||$300 – $3,500||Manufactures mostly all-vinyl windows with limited wood and fiberglass available|
|JELD-WEN||$300 – $2,500||Manufactures several lines of wood and wood-clad windows, as well as vinyl, composite, and hybrid windows|
|Milgard||$300 – $2,000||Manufactures mostly vinyl windows, with fiberglass and aluminum lines available|
Triple pane windows FAQs
What are triple-pane windows?
A triple-pane window has three panes of glass with space in between for improved insulation. To check if a window is triple-pane, look at the window edge and check for two spacers between the glass panels or shine a light through the window and look for three distinct reflections.
Are triple-pane windows worth it?
Triple-pane windows are expensive but worth it if you live in a cold climate with high heating bills. Triple-pane windows reduce energy bills, reduce noise, and increase your home's value. They also last longer than double-pane windows, which makes them worth the higher price if your budget allows.
How long do triple-pane windows last?
Triple-pane windows last 20 to 30 years, which is longer than double-pane windows which last 15 to 20 years. Cold climates may cause the seals to break down and the gas to leak out, so maintenance is required in cold areas to prolong the windows' life.
Do triple-pane windows reduce noise?
Triple-pane windows reduce noise levels by up to 50%, while double-pane windows lower noise levels by around 30%.
When should I install new windows?
You should install new windows when your existing windows are old or inefficient. Windows typically last 15 to 20 years but even if your windows aren't that old, they could be costing you money every month in high utility bills.
Getting estimates for triple-pane windows installation
Follow these suggestions to help you choose the best window installer near you:
Select from only licensed, bonded, and insured window installers.
Get several estimates for windows of the same material for comparison.
Avoid the lowest estimates that may indicate poor workmanship.
Read reviews from past customers on HomeGuide and Google.
Request a written contract, payment terms, and warranty details before the project begins.
Negotiate a payment plan with a reasonable deposit and the final payment due when the work is done.
Questions to ask
Be sure to ask these important questions when choosing a window installer:
How many years of window installation experience do you have?
What brand and style of triple-pane windows do you recommend for my home?
How much will the new windows cost?
What is included in the estimate?
How long will it take to install the new windows?
What happens if the surrounding surfaces are damaged during installation?
What extended financing do you offer?
What does the warranty include, and how long is it?