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Top-Rated Addition to existing structure builders in Libertyville - Updated Nov 2026

Avatar for Above & Beyond Construction
Above & Beyond Construction
5.0(
41
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Quality and craftsmanship was excellent. I trusted Chester, the project manager completely. Our house was over 90 years old and he went literally "above and beyond" to help us when unrelated issues happened to come up with our boiler. He employs very talented subcontractors that he has worked with for years and who helped contribute to the smooth completion of our project. He has excellent taste and was extremely helpful in offering his opinion when we decided to make some changes. We were very happy with the look and finish of our garage- we re-used brick from the demolition and he was able to make the exterior match our existing house perfectly. He is attentive and available to answer questions and personally inspected all of the work as it was completed"
Remodeling - General Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Response time2 days
Recommended by100%of homeowners
Avatar for MPT Enterprises Inc
MPT Enterprises Inc
4.8(
182
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"We are very pleased with the work done by Paul and his team. They were courteous, professional, punctual and easy to communicate with. It was a tricky job becaus of space restrictions and we are happy with the end result and the work was completed within the time frame initally given. We have done some major renovations previously and know that there are so many things that can go wrong in a big job like this but all was smooth and calm. I would definitely use for future jobs and recommend to others."
Remodeling - General Project
Remodeling - General Project
Additional Photos
Additional Photos
Additional Photos

+167

Response time6 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Icon Building Group
Icon Building Group
5.0(
15
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"It was great to work with Icon Builders to building our dream home. They went out of their way to accommodate the completion of our home build in time for school. Their response times are great and the staff is truly personable. It was great working with Jenna, Natalia, Joe, Scott, Shawna and Charlie. I will recommend Icon to anyone looking to build a custom home."
Kitchen BEFORE
Kitchen BEFORE
Powder Room BEFORE
Living Room BEFORE
Loft BEFORE

+25

Avatar for J K Complete Remodeling & Construction Inc
J K Complete Remodeling & Construction Inc
4.7(
316
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Jack took detailed notes during home quote visit and provided us an initial estimate over the phone. His proposal was comparable to other bids we got. We decided to move forward and he sent us a written estimate via email. The first estimate was slightly over original amount due to known possibility with electrical and additional work we wanted. They started the project and it took about 6 weeks to complete. There were some bumps in the beginning with days/time they were working but we were able to sort that out and all was good. Ralph was the main guy that did most of the work. He did a nice job and made sure to clean up after the end of each day. Basement turned out great and We are very happy with it."
Response time1 day
8 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Creative Building Solutions
Creative Building Solutions
5.0(
12
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"We hired Creative Building Solutions to update one of our smaller bathrooms. We are very happy with the process and outcome. Prompt, professional, and courteous, good workmanship, and flexible in working around our schedule. We will now be doing a complete remodel of one of our other bathrooms."
Kitchen Remodel
Kitchen Remodel
Kitchen Remodel
Bath Remodel
Bath Remodel

+20

Response time10 hrs
Response rate91%
Recommended by100%of homeowners
A P Builder & General Contractor LLC
4.1(
98
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

Warranties offered

Customers say: Super punctual

"Angelo did everything as planned. We walked over the construction plans before construction started. Site drawing detailed how the finished room addition and sun porch would look after the job was completed. Wife and I were completely satisfied with the finished job. Ready for summer 2021 with or without COVID... Construction crew (Framers) did a fantastic job. Always arrived on time and job was completed on time. Will be happy to recommend AP Builders for any residential construction project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time5 days
Response rate99%
4 neighbors recently requested a quote
Avatar for FB Construction, Inc.
FB Construction, Inc.
4.9(
30
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"FB Construction did a great job installing windows at my house. They were flexible and allowed me to use the windows that I wanted to be installed. They were responsive to questions that came up during the project. I felt they were professional and would consider using them again in the future."
New composite deck with metal pickets and white railing.
BEFORE. DOUBLE HUNG STYLE WINDOWS
New composite deck with metal pickets and white railing.
BEFORE. BASEMENT WINDOWS
New composite deck with metal pickets and white railing.

+19

Response time1 day
Response rate100%
Recommended by82%of homeowners
Avatar for Quintessential Renovations, Inc.
Quintessential Renovations, Inc.
4.7(
38
)
Addition to Existing Structure - Build

Serving Libertyville, IL and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"They do phenomenal work! I had them finish my basement, and it turned out absolutely outstanding. I had a lot of specific design details and custom touches I wanted incorporated, and they took the time to understand every single one, making sure everything was executed to absolute perfection. Their craftsmanship and attention to detail are second to none. I would definitely hire them again in a heartbeat and give them my highest recommendation to anyone looking for top-tier work!"
Kitchen
Master Bathroom
Mixed project photos
Modern Bathroom
Kitchen

+97

Response time1 day
1 neighbors recently requested a quote
Recommended by70%of homeowners
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FAQs for addition to existing structure building service projects in Libertyville, IL

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Libertyville, IL homeowners’ guide to addition to existing structure building services

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