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  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon47
    Verified window services reviews

Find Window pros in Dekalb

Avatar for F and A Window Cleaning
F and A Window Cleaning
5.0(
28
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"F and A did a fantastic job cleaning our windows and doors! The communication was great, they arrived on time and cleaned every glass surface, sills, and screens until they looked almost new. It was wonderful to walk into the house and see the sun and plants through sparkling clean windows. We will hire F and A to clean our windows every spring!"
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+31

Recommended by100%of homeowners
Avatar for 123 Exteriors
123 Exteriors
5.0(
9
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"We want to thank Dominik for his expertise and advice when choosing our windows. We needed 12 original windows replaced, and he helped us choose windows that give the house a clean, refreshing look. He was very professional and explained the energy benefits we should expect to see."
Window
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
303
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I am very pleased with my new windows. I used Home Genius Exteriors to do my roof, gutter protection, and now Windows. This is an absolute amazing company, my salesman brendan was very helpful, Devan the Project Manager helped make sure everything went smoothly. Walter and Mike also from production were very friendly and professional. And Shawn, the window installer was polite,knowlagable, and efficient. And even cleaned up on his way out. Next on the agenda is to get a new door taken care of. Highly recommend HGE"
Recommended by77%of homeowners
Avatar for Renewal by Andersen
Renewal by Andersen
3.8(
125
)

Serving Dekalb, IL and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"Renewal by Andersen of Wyoming did an incredible job with installing windows in our home. Thank you to the team who did the install and to the company for creating these exceptional windows."
Brighten up your office space!
City Apartments
Create an oasis in the primary bedroom
Create a nice beach view
Floor to ceiling sunlight

+2

Response time10 mins
5383 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Infinity Exteriors, LLC
Infinity Exteriors, LLC
4.9(
21
)

Serving Dekalb, IL and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

Infinity Exteriors protects communities from unscrupulous contractors by delivering top-quality roofing, siding, windows, and gutters with integrity and precision. Our expert team of Project Advisors, Managers, and Installers ensures every project meets the highest standards. We provide honest, free estimates, transparent pricing, and detailed timelines so homeowners can make informed decisions. Deeply rooted in our communities, we support local events, youth programs, and charitable initiatives. Using premium materials from trusted manufacturers and backed by industry-leading warranties, we guarantee long-lasting results. With thorough inspections at every phase, we ensure superior craftsmanship and customer satisfaction. When you choose Infinity Exteriors, you're not just upgrading your home—you’re partnering with a company dedicated to protecting your investment and installing peace of mind for years to come.

LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide

+16

Response time5 days
29 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for J&K Home Improvement & Restoration
J&K Home Improvement & Restoration
5.0(
8
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"We have once again reached out to Joe Kim at J & K Home Improvements when we had a new project planned. We were completely satisfied when we replaced our siding and roof with Joe. Now Joe and his professional crew have replaced all our windows . There are never surprises or additions from when the job is quoted. Once again we are totally satisfied and delighted with their work!! It has been a stress free experience each and every time."
 Roofing
 Siding Job
GAF Shingles
 Siding job site
 Modifed Bituman

+2

Recommended by100%of homeowners
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Showing 1-10 of 197
Windows questions, answered by experts

Yes, it is generally better and more cost-effective to replace all your windows at once. Contractors often lower the per-window labor and material costs for larger projects, saving you money in the long run. Installers may also quote a flat rate for overhead, making multiple small jobs more expensive than one large one.

Replacing all windows simultaneously offers other advantages:

  • Aesthetics and Home Value: It creates a cohesive style and uniform energy efficiency, which is appealing to potential home buyers.

  • Efficiency: The entire replacement process, which can take several weeks, is completed in a single, more efficient project.

However, replacing all windows requires a significant upfront investment. While you can replace just a few windows, experts recommend replacing at least five to eight at a time to avoid high overhead costs. An exception is when a single window is damaged; in that case, it can be replaced on its own.

Storm windows are placed outside of already-installed windows. Regular windows are installed into a frame, offering a barrier to the elements but no special protection. Storm windows add extra protection to regular windows, reduce noise, and improve insulation. Replacing a regular window involves a different process than installing a storm window. 

On average, replacing your windows can cost anywhere from $180 to $410, which breaks down to an average of $280 per window. It all depends on the size of the window you’re installing and the frame and glass that you choose. Other things a contractor might take into consideration are the age of your home, the condition of the walls, and where you’re installing the windows.

You will need about half of a caulking cartridge to caulk one window. The average home has eight to 10 windows, so you would need about 4 or 5 cartridges to caulk every window in an average-sized house. However, you may not need to caulk all the windows at once. If just one window has a pesky draft, you may only need half of a cartridge to fill in the gaps.

Folding window installation costs about $1,600 on average, ranging from $500 to $3,000. The cost factors of this project include the size, the type of folding windows, the number of panels, and the type of glass. Different types of folding windows include:

  • Standard folding window: $200 per linear foot

  • Glazed folding window: $240 per linear foot

  • Standard folding window and swing door: $1,000 per linear foot

  • Folding window and sliding door: $2,000 per linear foot

The Dekalb, IL homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.