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Top-Rated Eifs installation pros in Diamond - Updated Nov 2026

Avatar for Attic Pro
Attic Pro
5.0(
44
)
Blown-In Insulation - Install or Upgrade

Serving Diamond, IL and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I recently had Attic Pro of New Lenox, IL install blown-in insulation as an upgrade to my existing attic setup, and the results have been fantastic! My main reasons for doing this were to boost energy efficiency and cut down on those skyrocketing heating and AC bills—our old insulation just wasn’t cutting it anymore, especially with Illinois winters and humid summers. Within the first month, I’ve already noticed a huge difference: the house stays warmer in the cold without cranking the heat, and cooler in the heat. For the first time I am looking forward to seeing my next utility bills. The team at Attic Pro was top-notch from start to finish. They provided highly personalized service and paid incredible attention to detail—inspecting every nook, sealing air leaks, and ensuring the blown-in material was evenly distributed for maximum R-value. No cookie-cutter job here; they tailored everything to my needs."
Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
385
)
Vinyl Siding - Install or Completely ReplaceMetal Siding: Install or Completely Replace

Serving Diamond, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Satisfied with every aspect of the job. From sales to install to production. The installation crew was fast and efficient. Lauren was a dream getting us schedualled. The production team with Mike,Walter,Devan were fantastic making sure I was satisfied and informed. Thank you Home Genius for a great job. Highly recommend."
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Gutters

+46

685 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for Excel Windows
Excel Windows
4.6(
129
)
Vinyl Siding - Install or Completely Replace

Serving Diamond, IL and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Everything was great, from the initial consultation and quote to the installation and even the follow-up. Customer service and communication was top notch. I wouldn’t hesitate to hire this company again and I highly recommend them!"
Additional Photos
Additional Photos
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Additional Photos

+407

Response time9 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
Alliance Remodeling & Construction
4.8(
31
)
Vinyl Siding - Repair or Partially Replace

Serving Diamond, IL and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quality work

"Roy and the crew were punctual, professional and friendly. The foreman answered all my questions. They also replaced the power attic vent while replacing the roof. Great job done. I would definitely use this company again and refer them to others!"
Response time12 hrs
3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Boss Roofing - Siding Experts, Inc.
Boss Roofing - Siding Experts, Inc.
4.8(
42
)
Vinyl Siding - Install or Completely Replace

Serving Diamond, IL and surrounding areas

Approved (Corporate)

In business since 2005

Free estimates

Emergency services offered

Boss Roofing - Siding Experts, a licensed, insured, and locally owned roofing company, is your trusted choice for top-notch roofing and siding solutions in Sterling, Illinois, and the surrounding area. With over 25 years of experience, their expert team of roofers provides comprehensive services, from residential and commercial roofing to steel roofing, gutters, siding, and expert roofing repairs. With their unwavering commitment to delivering excellence, superior craftsmanship, and unparalleled customer care, Boss Roofing - Siding Experts stands out as your ideal choice for your roofing and siding needs. Contact us today to elevate the curb appeal and safeguard your property confidently.

Free Roof Giveaway
Free Roof Giveaway
Asphalt Roofing
Asphalt Roof
Asphalt Roofing

+5

Response time3 hrs
178 neighbors recently requested a quote
Recommended by97%of homeowners
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Eifs Installers FAQs, answered by experts

Depending on size, material, and labor, two windows can cost between $600 and $1,600.

The average cost to install an egress window is approximately $3,900, with a typical range between $2,500 and $5,300, though costs can be higher. The final price is influenced by several factors, including the window's size, type, material, and glass quality. Other variables include labor costs, location, excavation needs, and whether permits or a structural engineer consultation are required. The price of the window itself often depends on the number of panes:

  • Single-pane: $100–$400

  • Double-pane: $200–$500

  • Triple-pane: $300–$800

Additional features like window wells or covers will also increase the total project cost. It is advisable to obtain multiple quotes from professionals to get a comprehensive understanding of the expenses for your specific project.

A good U-factor for windows is 0.30 or lower, but they can range from 0.20 to 1.20. A general rule of thumb when it comes to the U-factor is that the lower, the better.

DIY is possible for experienced individuals. Professional installation ensures compliance with building codes and proper sealing.

Most professionals can install a window well in two to three days, depending on the size of the well and the window you want inside it. If you’re just replacing an existing window well, the work is much less intensive, and most experts can get the job done in just one day. Connecting the window well to a drainage system or installing a custom concrete window well will naturally take longer, but even the most complicated installations shouldn’t take more than three days.

The Diamond, IL homeowners’ guide to eifs installation services

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