
Windows are critical home elements. They improve curb appeal, boost property values, let in sunlight, improve air circulation and lower utility costs. When you consider replacing windows, you need the best service to keep them functional and beneficial.
Generally, you’ll have to choose between a general contractor and a window company for your window replacement. Both options offer advantages and disadvantages.
Before you choose either option, it’s valuable to understand the difference between them.
A general, or direct, contractor is a proverbial jack-of-all-trades. They complete or subcontract tasks, from heating, ventilation and air conditioning (HVAC) to plumbing and painting. They can also complete all basic construction and repair work.
Window specialists or window contractors are just that – specialists. They set up installations, repairs and replacements for commercial or residential windows. A certified window contractor undergoes unique training, giving them the skills and knowledge to install products according to manufacturer specifications.
Choosing a window specialist for general window replacements is almost always better. However, there are a few exceptions to this, including:
It’s important to note that you’re always better off investing in high-quality, energy-efficient windows with a reliable warranty. Even in the instances listed above, it’s much better to have the contractor make the changes to the building design first and rely on a window specialist to install the window.
When you need to choose between a general contractor vs. a window company for your window replacement, it’s almost always best to choose a window replacement specialist, especially in the following instances:
A window specialist will offer the best value, including additional benefits for your home, except for instances where structural changes are required. Another time to consider hiring a reputable general contractor is if you need to replace aluminum window frames that are embedded in the house structure.

Partnering with a premium window replacement specialist offers significant benefits, including the following:
Professional installation is key to your window’s performance, especially if you install an energy-efficient option. A poorly installed window may counteract energy savings, making your home less thermally efficient.
While general contractors are often good installers for standard, everyday windows, they don’t have the experience and unique knowledge that specialists bring to premium window installations.
Partnering with a window installation expert like Renewal by Andersen gives you access to extensive customization options for your window design. A specialist can often tailor the product to meet your needs by changing aspects like:
Partnering with a specialist allows you to ensure that your new windows fit your design preferences.
General contractors may not have the certifications needed to meet the requirements of manufacturer’s warranties. Working with a specialist installer is necessary to comply with many products’ terms and conditions. A certified window installer is your best option if you’d like to maintain your window warranties and ensure the best insurance premiums.
Once you’ve determined which of the two options will better suit you, it’s time to select a contractor who meets those needs. Below, we share some tips for finding the right partner.
You want a window specialist who knows what they’re doing and has the testimonials to prove it. Contractors who have been in business longer have a better track record and more experience, which generally makes them a safer option.
Experience is invaluable, but certifications and licensing help identify trustworthy contractors. If a window company has multiple certifications and the trust of industry leaders, they’re a contractor worth partnering with. Certifications and licenses also make it easier to avoid scams.
Doing diligent research is pivotal when considering any contractor. Check their website for testimonials and examples of completed projects. You should also check reviews on unaffiliated, third-party review sites since they offer an unbiased overview of people’s experiences.
Note positive and negative reviews – the contractor’s performance will likely be somewhere between. You should also check their Better Business Bureau (BBB) status.
Before finalizing a relationship with a contractor, contact them and ask any questions you may have. A trustworthy contractor will be happy to answer them. Some possible questions include:
Always get estimates from multiple companies whenever you’re trying to find a contractor. Having various options will give you a good idea of an honest estimate.
A trustworthy installer who is confident in their products and installations will generally offer a warranty. Looking for a warranty, especially one that goes beyond everyday wear-and-tear, is often a useful indicator of a good contractor.
Before making a payment, look out for these warning signs:
Are you ready to replace some windows? Whether you need to replace a damaged window or want to install new windows that match your aesthetic, count on Renewal by Andersen. Our selection of energy-efficient, standard and custom replacement windows meets every need.
Call us for immediate service or complete our contact form to schedule a free consultation.
