Do some rooms in your home feel too hot in summer and too cold in winter? Do you notice a draft when you sit near a window? Your windows may be part of the problem. Reno homeowners deal with hot sun, cold nights, winter weather, and large temperature swings.
Older windows can allow indoor air to escape while outdoor heat or cold enters your home. That can make your heating and cooling system work harder than it should.
Energy-efficient windows can help create a more comfortable home. They may also reduce outside noise, improve curb appeal, and make it easier to control indoor temperatures.
However, not every window offers the same performance. Before scheduling window replacement, you need to know what to look for and why proper installation matters. And in this blog, we’ll explain what makes a window energy-efficient and what to consider before replacing yours.
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What Makes a Window Energy-Efficient?
The secret to energy-efficient windows is the ENERGY STAR label, which identifies qualifying windows as having met strict performance standards established by the U.S. Environmental Protection Agency. This applies to double- and triple-pane windows, as well as windows that contain inert gas to help insulate your home by keeping warm air in during the winter and hot air out during the summer.
Other ENERGY STAR features may include window frame materials with better insulating properties and spacers that help reduce heat flow and condensation. ENERGY STAR windows may also include special coatings, known as low-E glass, that reduce heat transfer into and out of the home. These low-E windows also help prevent UV-related fading inside your home, helping protect furniture, rugs, flooring, and other interior furnishings.
How Energy-Efficient Windows Help Your Home?
You may think about replacing your windows because they look old. Yet appearance is only one part of the decision. Modern windows may help you –
1. Keep Your Home More Comfortable
Have you ever avoided sitting next to a window in January because the glass felt freezing? What about a west-facing room that becomes unbearably hot every afternoon?
Energy-efficient glass helps slow the movement of heat through the window. This can reduce uncomfortable hot and cold spots throughout your home.
2. Reduce Heating and Cooling Waste
Leaky windows allow conditioned air to escape. Your furnace or air conditioner must then run longer to maintain the temperature you selected.
High-performing windows can reduce this energy waste. ENERGY STAR notes that windows meeting its standards perform better than basic building-code requirements, although your actual savings will depend on your existing windows, home design, energy use, and installation quality.
3. Reduce Fading From Sunlight
When it receives plenty of strong sunlight. Over time, ultraviolet exposure can fade hardwood floors, rugs, furniture, photographs, and artwork. Low-E glass can reduce the amount of damaging UV energy that passes through a window while still allowing natural light into the room.
4. Make Your Home Quieter
Do you hear traffic, barking dogs, lawn equipment, or neighborhood activity through your windows? Insulated glass and tighter window construction may reduce the amount of outside noise entering your home.
Windows cannot make a room completely soundproof, but quality window replacement can make a noticeable difference.
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Signs You May Need Window Replacement
Not every old window must be replaced immediately. However, certain problems suggest that repairs may no longer be enough and it’s time for window replacement. Consider calling a professional window company when you notice –
- Drafts around closed windows
- Condensation between the glass panes
- Cracked or damaged frames
- Windows that stick or will not lock
- Water stains around the opening
- Peeling paint or damaged drywall
- Rooms that stay hotter or colder than the rest of the house
- Rising heating and cooling costs
- Excessive outside noise
- Visible gaps around the frame
Fog or moisture trapped between panes usually means the window’s seal has failed. Once that seal breaks, the insulated glass can no longer perform as intended.
Performance Considerations – Understanding U-Factor and SHGC
Window labels contain several numbers, but two ratings deserve your attention.
- U-Factor
The U-factor measures how easily heat passes through the entire window. A lower U-factor generally means the window provides better insulation. This can be especially helpful during colder months. The Department of Energy recommends comparing the U-factor on the NFRC label rather than judging a window by the number of panes alone.
- Solar Heat Gain Coefficient
The Solar Heat Gain Coefficient, or SHGC, measures how much solar heat passes through the window. A lower SHGC blocks more heat from the sun. This may be useful for large west- or south-facing windows that receive intense afternoon sunlight.
However, the lowest number is not automatically right for every opening. The best rating can depend on the window’s direction, nearby shade, room use, and your home’s overall design.
That is why window orientation should be part of your selection process.
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Double-Pane or Triple-Pane Windows?
Many homeowners assume triple-pane windows must always be better. They can provide stronger insulation and additional noise reduction, but they also cost more and weigh more.
Double-pane windows may offer a practical balance of performance and price for many homes. Triple-pane glass may make more sense when –
- Your home is in a particularly cold or exposed area
- Outside noise is a major concern
- You want a higher level of thermal performance
- The window is large or receives harsh weather
- You plan to live in your home for many years
A reliable window installation team should explain the expected benefit of each option instead of automatically pushing the most expensive product.
Why Professional Window Installation Must Be Prioritized
Even a highly rated window can perform poorly when it is installed incorrectly. A window opening must be measured carefully. The unit must sit square and level. Installers must also seal and insulate the surrounding gaps correctly. Poor installation can cause –
- Air leaks
- Water intrusion
- Difficult operation
- Frame damage
- Condensation problems
- Reduced energy performance
- Possible warranty issues
Professional window installation & replacement should account for the local climate, the condition of the opening, exterior materials, drainage, and the manufacturer’s instructions.
If your home was built before 1978, the project may also disturb lead-based paint. The EPA recommends using a lead-safe certified contractor for renovation work that affects painted surfaces in older homes.
Questions to Ask a Window Company
Before choosing an installer, you can ask a few direct questions –
- Is your company licensed and insured?
- Which windows will work best for climate?
- Can you explain the NFRC ratings?
- Who will complete the installation?
- Does the estimate include removal and cleanup?
- What product and labor warranties are included?
- How will you protect my home during the work?
- Do you follow lead-safe practices for pre-1978 homes?
- Are financing options available?
A reputable contractor should also take the time to inspect your home’s existing windows, explain why a particular product is recommended, and provide an estimate. Proper communication, realistic timelines, and transparent pricing are good signs that you’re working with a window company that values quality and customer satisfaction.
Can New Windows Increase Home Value?
New windows can make your home more attractive to future buyers. They can also reduce common problems like drafts, failed seals, difficult locks, and visible frame damage. However, it is better to view window installation & replacement as a combination of benefits rather than a guaranteed dollar-for-dollar return. By replacing your windows, you’re investing in –
- Daily comfort
- Easier operation
- Better curb appeal
- Improved security
- Lower maintenance
- Potential energy savings
- Greater buyer confidence
Most importantly, you get to enjoy these benefits long before you decide to sell your home.
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Questions You May Have About Energy-Efficient Windows
1. How long does window replacement take?
Many standard windows can be replaced within a day, although the overall timeline depends on the number of windows, their size, accessibility, and the condition of the openings. Custom windows, structural repairs, or weather delays can extend the project. Your installer should provide a realistic schedule after inspecting and measuring your home.
2. How much can I expect to save with ENERGY STAR qualified windows?
With ENERGY STAR qualified windows, you could save hundreds of dollars each year simply by replacing your existing windows with modern, energy-efficient ones. Sure, you’ll have to spend some money upfront, but with many affordable styles and various financing options available, retrofitting your existing home with beautiful, energy-efficient windows is more affordable than you might think.
The U.S. Department of Energy says that upgrading to ENERGY STAR windows can help you save up to 15% on your annual household energy bills, up to $500 or more per year, depending on where you live and local energy costs.
3. Do I need to replace my existing windows with energy-efficient ones?
Even if your existing windows are in good shape, odds are they don’t do a good job of insulating your home. That’s because many older homes across the U.S. have single-pane clear glass windows, which provide very little insulation against outdoor temperatures. Even standard double-pane windows may not offer the same level of energy efficiency as modern ENERGY STAR windows, especially if they use clear glass without low-E coatings or gas fills.
4. Do energy-efficient windows need special maintenance?
No. Most modern energy-efficient windows are easy to maintain. You need to regularly clean the glass, check the weatherstripping, and inspect the frames for damage to help keep them performing well. Following the manufacturer’s care instructions and scheduling occasional inspections can also increase the life of your windows and maintain their energy efficiency.
5. How long do energy-efficient windows last?
Quality energy-efficient windows can last for several years when they are installed correctly and properly maintained. Their lifespan usually depends on the frame material, glass quality, weather, and regular upkeep. Cleaning your windows, inspecting them for damage, and fixing small problems before they become big can help keep your windows looking good and performing efficiently for years.
Read More About:
- 11 Questions to Ask Before Hiring a Window Replacement Contractor
- When to Replace Your Windows
- Top 5 Window Types for Fresh Air Flow and Better Natural Ventilation
- Is It Better to Replace Windows in Summer or Winter?
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Takeaway!
Energy-efficient windows offer a fresh new look, improve comfort, reduce drafts, help regulate indoor temperatures, and support better energy performance throughout the year.
And when you understand important features, compare performance ratings, and work with an experienced window company, you can make a window investment that suits your home’s needs.
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Get Expert Window Solutions from Brothers Home Improvement Inc.
You shouldn’t have to live with drafty rooms, failed window seals, or windows that are difficult to open. Brothers Home Improvement Inc., provides professional, dependable window installations in Reno.
Serving homeowners since 1994, we’re licensed in California (License #699009) and Nevada (License #0068117) to provide results you can trust. As an experienced window company, we help homeowners compare products, understand performance ratings, and choose windows that fit their homes.
We offer energy-efficient window options, professional installation, financing, and special offers to make your project more affordable. Every installation is handled by experienced window professionals committed to quality results. Call us at 800-672-3777 to schedule your service.
