12 Questions to Ask a Window Company

construction worker installing new windows in house

Are you about to invest in new windows for your home? Whether you’re upgrading for better energy efficiency, improved ventilation, or simply to refresh your home’s look, the choice of a window contractor can make or break the success of your project.

Finding a window contractor may seem easy—there are hundreds of companies offering installation services—but finding a good one? That’s a whole different story. The challenge is knowing which questions to ask to separate the competent and ethical professionals from the rest.

By asking the right questions, you’ll not only avoid potential pitfalls like hidden fees and shoddy workmanship, but you’ll also ensure your investment delivers long-term benefits. To make sure you’re working with a true professional, here are the 12 essential questions you should ask  every window contractor you evaluate prior to making your final choice.

Table of Contents

What Type of Windows Do You Specialize In?

Not all window companies specialize in every type of window. Depending on your home’s needs, it’s important to verify that the contractor offers the specific window styles that fit your home’s design and function. Whether you’re looking for double-hung windows, casement windows, picture windows, or even custom solutions like arched or bay windows, your contractor should be well-versed in the installation of your preferred window type.

Understanding the Window Types

Each type of window has its unique benefits, and some may be more suitable for your home than others. For example, double-hung windows are easy to clean and versatile, making them a popular choice for many homes. Casement windows provide excellent ventilation since they swing outward, while picture windows are stationary but offer unobstructed views, making them perfect for rooms where you want to maximize natural light.

Additionally, different climates may influence which windows are most appropriate. Homes in colder climates, for instance, may benefit from insulated, triple-pane windows to minimize heat loss. Asking the contractor what windows they specialize in can help ensure that you get windows tailored to your home’s needs. If the contractor isn’t familiar with the windows you want, it may be a red flag that you should look elsewhere.

Best Practice Tips for Homeowners

Before deciding on a contractor, ask to see examples of their previous work with the types of windows you’re considering. Whether through photos or physical site visits to past projects, reviewing their portfolio can give you peace of mind that they’re experienced with your desired window type.

Are You Licensed and Insured?

Licensing and insurance are non-negotiable factors when selecting a window contractor. A licensed contractor ensures that they meet local and state regulations for the type of work they do. Without proper licensing, you risk hiring someone who may not be familiar with the building codes in your area, which could lead to subpar installation or even legal issues.

Why Insurance Matters

Just as important as licensing is the contractor’s insurance. Window installation involves significant risks, from damage to your property to potential injuries. Without the proper insurance, you could be held financially responsible for any accidents that occur on your property. Always ask for proof of insurance, which should include both general liability insurance and worker’s compensation insurance. General liability covers damage to your property, while worker’s compensation ensures that the workers are protected if they get injured on the job.

What to Look For

Verify the contractor’s license with local regulatory bodies, and double-check that their insurance is up-to-date. If they hesitate to provide these documents, that’s a major red flag, and it’s best to move on to another contractor.

Can You Provide References or Customer Reviews?

A reputable contractor will have no problem providing references or directing you to customer reviews. Speaking with previous clients or reading online reviews can give you invaluable insights into the contractor’s professionalism, quality of work, and reliability.

Evaluating Past Work

When speaking to references, ask about their overall experience, from the consultation process to the final installation. Did the contractor stick to the timeline and budget? Were there any unexpected issues, and if so, how were they handled? These questions can reveal whether a contractor is reliable and transparent.

Additionally, check platforms like Google Reviews, Angie’s List, or Yelp for broader customer feedback. However, remember to take extreme reviews (both positive and negative) with a grain of salt and focus on trends in the feedback. A contractor with consistently positive feedback and a solid track record is a better bet than one with mixed reviews.

Red Flags to Avoid

Be cautious of contractors who:

  • Have no recent reviews or only reviews that seem overly positive without much detail.
  • Avoid giving references or provide references that sound scripted or vague.
  • Have unresolved complaints with the Better Business Bureau or other regulatory bodies.

What Is the Warranty on Your Windows?

A warranty is an important aspect to consider when hiring a window contractor, as it protects your investment. There are generally two types of warranties: manufacturer warranties for the windows themselves and installation warranties for the contractor’s workmanship. Both are equally important to ensure you’re protected in the long term.

Key Elements of a Warranty

When asking about warranties, get clear details on what’s covered and for how long. Does the manufacturer’s warranty cover things like broken seals, defective frames, or problems with the glass? Also, ask about the installation warranty—will the contractor come back and fix any issues, such as poor seals or improper fit, without additional charges?

Some contractors offer lifetime warranties, while others may only provide coverage for a few years. The warranty terms can also vary depending on the window brand or the complexity of the installation. Ensure you get all the warranty details in writing before moving forward.

Common Issues Covered by Warranties

Windows are susceptible to various issues over time, such as condensation between panes, warped frames, and operational difficulties (like windows sticking or not closing properly). A good warranty should cover these potential problems, saving you money on costly repairs later.

Do You Offer Energy-Efficient Window Options?

Energy-efficient windows are an increasingly popular option for homeowners who want to reduce energy consumption and keep their home’s interior comfortable year-round. When selecting a window contractor, it’s essential to ask about the energy-efficient options they offer.

What to Know About Energy-Efficient Windows

Windows that are designed for energy efficiency typically include features like Low-E (low emissivity) glass, insulated frames, and argon gas fills between panes. These features help minimize heat transfer, keeping warm air inside during winter and blocking out heat during summer. The result is lower energy bills and a more comfortable living environment.

Low-E coatings, in particular, can reflect heat while allowing light to pass through, which is why they’re often recommended in warmer climates. Additionally, windows with argon gas fills between the panes provide better insulation than standard double-pane windows.

Understanding Energy Efficiency Ratings

Windows come with a U-factor, which measures how well the window prevents heat from escaping, and a Solar Heat Gain Coefficient (SHGC), which measures how much heat from the sun the window lets in. The lower the U-factor and SHGC, the better the window is at conserving energy. Be sure to ask the contractor to explain the energy ratings of the windows they offer and how they compare to other options on the market.

How Do You Handle Permits and Inspections?

In many areas, window replacement requires obtaining a building permit and following local building codes. Failing to secure the necessary permits can lead to fines or forced re-installations. A reputable contractor should be able to handle the permit process for you, ensuring that all work is compliant with local regulations.

Why Inspections Are Important

In addition to permits, inspections ensure that the installation meets safety and quality standards. After the installation, a building inspector may need to verify that the windows were installed correctly and meet energy efficiency and safety standards. Ask the contractor if they manage both the permit and inspection processes to avoid complications.

Potential Problems Without Permits

If your window installation doesn’t comply with local codes, you could face problems when trying to sell your home, as many municipalities require permits for home improvements to be closed before a sale can proceed. Unpermitted work may also lead to issues with homeowner’s insurance claims if problems arise from faulty installation.

Can You Provide a Detailed Written Estimate?

Before starting any window installation project, always request a detailed written estimate. This will help you avoid unexpected costs and ensure that both you and the contractor are on the same page about the scope of work.

What to Expect in an Estimate

A detailed estimate should break down the cost of materials, labor, permits, and any additional services, such as removing and disposing of old windows. Make sure that the estimate includes both product and labor costs, so you know exactly what you’re paying for. Also, ask whether any potential issues could increase costs, such as replacing rotted window frames or modifying the opening to fit custom windows.

Avoiding Hidden Fees

Hidden fees can significantly increase the total cost of your project. For instance, some contractors may charge extra for hauling away old windows, or they might add fees for unforeseen complications. Ensure everything is outlined clearly in the estimate, and don’t be afraid to ask for clarification on any vague or unclear charges.

How Do You Handle Post-Installation Issues or Repairs?

No matter how well a window installation is done, issues can still arise afterward. Therefore, it’s crucial to ask the contractor how they handle post-installation issues, such as leaks, operational problems, or other concerns. A good contractor will have a clear plan for addressing any problems that arise after the windows are installed.

Common Post-Installation Issues

After your new windows are installed, you may notice small issues, such as difficulty opening or closing the windows, drafts, or condensation between the panes. These issues could result from improper installation or defects in the window itself. Ask the contractor if they provide follow-up services to address these kinds of problems.

Maintenance and Repair Plans

Some contractors offer maintenance plans to keep your windows in top condition. These plans may include routine inspections, cleaning, and minor repairs. Having a maintenance plan can extend the life of your windows and help prevent more significant issues down the road.

What Window Brands Do You Offer?

Not all window brands are created equal, and each brand offers different levels of quality, energy efficiency, and warranties. Ask the contractor which brands they carry and why they recommend them. Popular brands like Andersen, Pella, and Marvin are known for their quality and robust warranties, so be sure to inquire about these options.

Comparing Window Brands

Each brand offers unique features and benefits. For example, Pella is known for its wide range of customization options, while Marvin is recognized for its high-quality wood windows that offer great insulation. Make sure the contractor explains the pros and cons of each brand they carry, especially regarding durability, maintenance, and energy efficiency.

What Are the Payment Options?

Before committing to a project, understand the contractor’s payment terms. Some companies may require a deposit upfront, while others offer financing plans that allow you to spread out the payments over time. Knowing your payment options can help you budget and avoid financial strain.

Common Payment Structures

Window installation projects typically require an upfront deposit, with the balance due upon completion. However, some contractors offer payment plans or financing options, which can be beneficial if you’re managing a large project. Be sure to ask whether the contractor partners with any financial institutions for special financing offers, such as low-interest or deferred payments.

Do You Offer Custom Window Solutions?

If your home has non-standard window sizes or shapes, or if you’re looking for a specific design to enhance the character of your home, you may need custom windows. Not all contractors offer this service, so it’s important to ask upfront.

Benefits of Custom Windows

Custom windows can be tailored to fit unique spaces or complement a home’s design. For example, if you live in a historic home, custom windows might be the best way to maintain the home’s architectural integrity while improving functionality. Additionally, custom solutions allow you to choose specific frame colors, materials, and finishes that suit your personal style and preferences.

What Is the Installation Process Like?

Understanding the installation process can help you prepare for what to expect. Ask the contractor to explain how long the installation will take, how many workers will be on site, and what steps they take to minimize disruption to your home during the project.

Preparing for the Installation

Before the installation day, you may need to move furniture or other items away from the windows. Ask the contractor if they will handle any prep work, like covering floors or removing window coverings, or if that’s something you’ll need to do yourself.

After Installation

Once the windows are installed, the contractor should clean up the work area and dispose of old windows. Ask whether this service is included in the cost of the project or if there’s an extra fee for clean-up and disposal.

Conclusion

Hiring the right window company is just as important as choosing the right windows. By asking the questions outlined above, you can ensure that you’re working with a reliable, experienced contractor who can meet your needs and expectations. Always take your time to compare multiple contractors, evaluate their credentials, and get detailed written estimates. If you’re ready to move forward with your project, reach out to a trusted window contractor today.

FAQs

How much should you spend on replacement windows?

The cost of replacement windows can vary widely depending on the type of window, the size, and the materials used. On average, homeowners spend between $500 and $1,200 per window, including installation. High-end custom windows can cost more.

How do I choose a good window replacement contractor?

When choosing a window replacement contractor, look for companies with a solid reputation, valid licensing, insurance, and a history of positive customer reviews. Ask for detailed estimates and ensure the contractor provides warranties for both products and workmanship.

How long does window installation take?

The duration of a window installation project depends on the number of windows being replaced and the complexity of the installation. Typically, a contractor can install between 10 and 15 windows in a single day.

What is the best time of year to replace windows?

Window replacement can be done year-round, but many homeowners prefer spring or fall when the weather is mild, and the installation process is less likely to be affected by extreme temperatures.

How can I finance my window installation project?

Many contractors offer financing options, such as payment plans or partnerships with financial institutions that provide loans for home improvement projects. Be sure to ask about financing options during the consultation process.

Sources

Additional Windows Resources