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*The Angi rating for Egress Window Service companies in Harvard, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Egress Window Service needs.

*The HomeAdvisor rating for Egress Window Service companies in Harvard, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Egress Window Service needs.

Last update on August 27, 2026

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Avatar for The Real Seal LLC
The Real Seal LLC
5.0(
252
)
Egress Window - Install

Serving Harvard, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"The service and care we received from Real Seal was outstanding. Our foundation was sinking and Real Seal came to the rescue. After reviewing and getting several quotes. Real Seal was the one company that took their time and explained every process to us and made us feel safe and secure in our decision. They explained everything throughly and in detail. I knew every step that was done and they even went above what was expected. Austin was always available if we had any questions and if he didn't have the answer he knew who to refer us to for extra assistance. I would Highly recommend Real Seal if you want the job done honestly and throughly. It was well worth the money to have the sense of security that they gave me as a home owner."
Before and After Crack Repair
I Beam Supports
Polyjacking in Darien
Our Carbon Fiber Straps Repair Before, During, and After
Crack repaired with Carbon Fiber Staples

+39

Response time10 hrs
255 neighbors recently requested a quote
Recommended by98%of homeowners
Request Quote
Avatar for The Real Seal, LLC
The Real Seal, LLC
4.5(
38
)
Egress Window - Install

Serving Harvard, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Quick and complete estimate provided for egress window replacement. Very helpful service in understanding what was needed and in scheduling the work. The Real Seal did excellent work and completed my windows in one day. I would highly recommend them for foundation/egress window work."
Interior Foundation Crack Repair
Exterior Drain Tile System
PHCC 1730 Battery Backup System w/ 1033 sump pump
Interior Foundation Crack Repair
Cut-out of Interior Drain Tile System

+74

Response time10 hrs
33 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Showing 1-10 of 39
Egress Windows questions, answered by experts

Finding a reputable contractor for an egress window installation involves researching and vetting potential candidates. Start by searching for local professionals, reading customer reviews, and checking their websites for a portfolio of their work.

Once you have a shortlist, ask the following questions to ensure they are qualified:

• Are you licensed and insured?

• What experience do you have installing egress windows?

• Can you provide references from previous customers?

• Do you perform the work yourself or use subcontractors?

• What is the estimated project timeline and your current schedule?

• How do you handle payment?

They meet local code demands for escape routes, lighten basements, and aid in reducing overall humidity.

You install a window well 8 to 12 inches deeper than the base of the window sill. After filling the well with drainage rock, the well should sit 3 inches below the bottom of the window. The top of the window well should also be at least 3 inches higher than the surface-grade ground. The window well should be about 6 inches wider than the window opening.

Adding windows to a house is expensive. Budget roughly $5,800 to add a single window, and double or triple that to add two or three. In some cases, adding a single window can exceed $20,000, depending on the type of exterior wall, the size of the window, the type of window, local permit costs, and other factors.

There are a range of egress window types available, including:

  • Single-hung: $100–$400

  • Double-hung: $250–$500

  • Horizontal/sliding: $150–$800

  • Casement: $200–$500

  • In-swing: $350–$700

When choosing a type of egress window, consider how you’d like to open it. For example, double-hung egress windows open from top to bottom and let plenty of fresh air in, whereas sliding windows slide open for easy access.  

The Harvard, IL homeowners’ guide to egress window services

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

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