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Find Addition to existing structure builders in Kenilworth

LCF Consulting

4.56(
9
)
Approved Pro

LCF Consulting

4.56(
9
)
Approved Pro
Customers say: Quick response
25 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of construction management and home improvement services that are customizable to each individual project. We specialize in custom home building, additions to existing structures and a variety of remodels and major renovations but also offer a wide range of expertise for a variety of other projects utilizing a combined 40 years of commercial and residential building experience. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Larry was very knowledgeable - saved us a bunch of money - and his team was first rate....HIGHLY RECOMMENDED!!"

Steve T on July 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of construction management and home improvement services that are customizable to each individual project. We specialize in custom home building, additions to existing structures and a variety of remodels and major renovations but also offer a wide range of expertise for a variety of other projects utilizing a combined 40 years of commercial and residential building experience. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Larry was very knowledgeable - saved us a bunch of money - and his team was first rate....HIGHLY RECOMMENDED!!"

Steve T on July 2025


Fettner Builders And Consultants, LLC

5.00(
1
)
Approved Pro

Fettner Builders And Consultants, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
62 years of experience

Fettner Builders And Consultants, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

"All workmen were prompt, pleasant, meticulous and clean. Brian is a great communicator who was always very responsive in a timely manner. All work was extremely high quality."

Alan L on February 2024

Fettner Builders And Consultants, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

"All workmen were prompt, pleasant, meticulous and clean. Brian is a great communicator who was always very responsive in a timely manner. All work was extremely high quality."

Alan L on February 2024


J T General Contracting

4.55(
613
)
Approved Pro

J T General Contracting

4.55(
613
)
Approved Pro
Customers say: Super punctual
111 local quotes requested
37 years of experience

Owner-operated. Uses subs for plumbing & roofing. Cost is determined by the job. No travel charges. Service fees may apply. May contact through email or cell phone

"Job well done. Awesome. Jim and his crew are very professional and hard working. Have gotten many compliments on my new porch. Love it. Would highly recommend!"

Nancy H on August 2025

Owner-operated. Uses subs for plumbing & roofing. Cost is determined by the job. No travel charges. Service fees may apply. May contact through email or cell phone

"Job well done. Awesome. Jim and his crew are very professional and hard working. Have gotten many compliments on my new porch. Love it. Would highly recommend!"

Nancy H on August 2025


Avatar for Wentworth Construction

Wentworth Construction

5.00(
21
)
Approved Pro

Wentworth Construction

5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 years of experience

Wentworth Construction, Inc., is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"It went excellent, they're innovative, problem solving and professional very trust worthy, outstanding planning and quality. Hight attention to detail and creativity. Worked within budget, this is our first big project we highly recommend and will hire Wentworth crew again. Be sure to consider Wentworth for your next instruction project."

Diana W on May 2024

Wentworth Construction, Inc., is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"It went excellent, they're innovative, problem solving and professional very trust worthy, outstanding planning and quality. Hight attention to detail and creativity. Worked within budget, this is our first big project we highly recommend and will hire Wentworth crew again. Be sure to consider Wentworth for your next instruction project."

Diana W on May 2024


Avatar for 3G Construction, LLC

3G Construction, LLC

5.00(
2
)
Approved Pro

3G Construction, LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

With over 35 years of experience in the home improvement industry, we are the experts you need to take care of your home. We handle everything from addition builds, remodeling, and much more no matter the size and scope. We will treat your home as we would treat our own. Give 3G Construction, LLC a call today and we look forward to working with you!

"3G did an amazing job remodeling 2 baths in my home! Communication was excellent. They were prompt, courteous, and easy to work with. Everyone who worked on the jobs did quality work and cleaned up after themselves. I would hire 3G again in a heartbeat!"

Beth N on July 2019

With over 35 years of experience in the home improvement industry, we are the experts you need to take care of your home. We handle everything from addition builds, remodeling, and much more no matter the size and scope. We will treat your home as we would treat our own. Give 3G Construction, LLC a call today and we look forward to working with you!

"3G did an amazing job remodeling 2 baths in my home! Communication was excellent. They were prompt, courteous, and easy to work with. Everyone who worked on the jobs did quality work and cleaned up after themselves. I would hire 3G again in a heartbeat!"

Beth N on July 2019


"We are very happy with transformation from the original 70 yr. old kitchen. It's like night and day. Customer service is great with prompt responses and respectful to any concerns or questions. The tradesmen were on time and detail oriented. The quality was excellent. We would call Rob again for future projects. He made some good suggestions as well as the tradesmen."

June V on July 2024

We are a full service remodeling/renovation company with an emphasis on communication, quality, timeliness, and affordability. From a small powder room remodel, to a major renovation project, we guarantee quality work, on budget, and on time.

"We are very happy with transformation from the original 70 yr. old kitchen. It's like night and day. Customer service is great with prompt responses and respectful to any concerns or questions. The tradesmen were on time and detail oriented. The quality was excellent. We would call Rob again for future projects. He made some good suggestions as well as the tradesmen."

June V on July 2024


Macnon Builders, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Macnon Builders, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
38 years of experience
Free onsite estimate

Macnon Builders, is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Macnon Builders is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees, and community by building trust, treating every project with the utmost integrity, and exceeding expectations. We look forward to working with you!

Macnon Builders, is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Macnon Builders is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees, and community by building trust, treating every project with the utmost integrity, and exceeding expectations. We look forward to working with you!


Avatar for MZ Development Partners, LLC

MZ Development Partners, LLC

5.00(
8
)
Approved Pro

MZ Development Partners, LLC

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 years of experience

MZ Development Partners, LLC is a full service general contracting firm offering the following services: -Residential Remodeling -Custom Home Building -Commercial Remodeling -Architectural Design. MZ Development Partners, LLC has over 30 years of experience coordinating all types of remodeling and building projects. We pride ourselves not only in the distinctive quality of craftsmanship, but with the long list of satisfied customers we leave behind. The service we provide at the completion of our projects is just as important as the initial sale. Contact us for a free initial design consultation.

"Bob and his crew are the best. This was a major renovation and complete re-do of a split level house that we converted to a more traditional house. 95% of our house was redone. Bob is meticulous and his subcontractors are fantastic at their crafts and very loyal to Bob for good reason. He was pretty instantaneous in his communication with me even on weekends, which we rarely bothered him in. This was a mid 6 figure job that Bob said would take 4 1/2 to 6 months. They finished in 5 1/2 months which is pretty amazing during a pandemic with major supply chain issues. Bobs bid wasnâ t the lowest, but it wasnâ t the highest of the 5 bids we received. They were pretty much on budget except for material price increases, especially lumber which was not his or the lumber yards fault. If youâ re thinking of hiring MZ Development you will not go wrong if you hire them to do whatever size project you are thinking about."

Mitch S on November 2021

MZ Development Partners, LLC is a full service general contracting firm offering the following services: -Residential Remodeling -Custom Home Building -Commercial Remodeling -Architectural Design. MZ Development Partners, LLC has over 30 years of experience coordinating all types of remodeling and building projects. We pride ourselves not only in the distinctive quality of craftsmanship, but with the long list of satisfied customers we leave behind. The service we provide at the completion of our projects is just as important as the initial sale. Contact us for a free initial design consultation.

"Bob and his crew are the best. This was a major renovation and complete re-do of a split level house that we converted to a more traditional house. 95% of our house was redone. Bob is meticulous and his subcontractors are fantastic at their crafts and very loyal to Bob for good reason. He was pretty instantaneous in his communication with me even on weekends, which we rarely bothered him in. This was a mid 6 figure job that Bob said would take 4 1/2 to 6 months. They finished in 5 1/2 months which is pretty amazing during a pandemic with major supply chain issues. Bobs bid wasnâ t the lowest, but it wasnâ t the highest of the 5 bids we received. They were pretty much on budget except for material price increases, especially lumber which was not his or the lumber yards fault. If youâ re thinking of hiring MZ Development you will not go wrong if you hire them to do whatever size project you are thinking about."

Mitch S on November 2021


Hero...Your Construction Partner

4.00(
4
)
Approved Pro

Hero...Your Construction Partner

4.00(
4
)
Approved Pro
Customers say: Quick response
14 years of experience
Free onsite estimate

we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

"I?m sad to write this review as Hero started off as a wonderful landscape partner to us with excellent communication and integrity. Unfortunately this past year we paid for a season pass of bi-weekly lawn mowing services plus an additional spring clean up service. We tried to work things out with Hero but ultimately we received fewer than half the lawn visits, no spring clean up and the visits we received were sporatic and not on the promised timeline. Hero agreed to come by with the refund for part of the services he did not provide but has since ghosted us despite consistent attempts to reach out by phone, text, Zelle and in-person. We lost $480 in services."

Qiu F on December 2025

we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

"I?m sad to write this review as Hero started off as a wonderful landscape partner to us with excellent communication and integrity. Unfortunately this past year we paid for a season pass of bi-weekly lawn mowing services plus an additional spring clean up service. We tried to work things out with Hero but ultimately we received fewer than half the lawn visits, no spring clean up and the visits we received were sporatic and not on the promised timeline. Hero agreed to come by with the refund for part of the services he did not provide but has since ghosted us despite consistent attempts to reach out by phone, text, Zelle and in-person. We lost $480 in services."

Qiu F on December 2025


Avatar for Portfolio Properties LLC

Portfolio Properties LLC

5.00(
4
)
Approved Pro

Portfolio Properties LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 local quotes requested

Portfolio Properties is a Northshore based award winning homebuilder, remodeler, and licensed roofer. Our capabilities range from a kitchen and bathroom remodel to a custom home design- build. We've been in business for over 20 years offering unparalleled service, financial transparency and an unmatched warranty.

"I had the pleasure of working with John on a home remodeling project, and I cannot say enough positive things about his work. John did an incredible job transforming our home, and I would highly recommend him for any contracting or renovation needs. John was easy to talk to, always open to discussing ideas and changes, and he made sure to keep us informed throughout the entire project. His responsiveness to emails and phone calls was impressive. Whenever we had questions or concerns, John was quick to address them, which made the whole process much smoother. John was reliable and maintained a high level of professionalism throughout the project. He was proactive in finding solutions when unexpected issues arose and ensured that the project stayed on track. The initial estimate he provided was quite accurate and there were no surprises when it came to the final cost. Overall, working with John and his crew was a pleasant and stress-free experience. He delivered high-quality work and maintained professionalism throughout the project. I would not hesitate to hire him again for any future renovation or contracting needs."

Jonathan R on October 2023

Portfolio Properties is a Northshore based award winning homebuilder, remodeler, and licensed roofer. Our capabilities range from a kitchen and bathroom remodel to a custom home design- build. We've been in business for over 20 years offering unparalleled service, financial transparency and an unmatched warranty.

"I had the pleasure of working with John on a home remodeling project, and I cannot say enough positive things about his work. John did an incredible job transforming our home, and I would highly recommend him for any contracting or renovation needs. John was easy to talk to, always open to discussing ideas and changes, and he made sure to keep us informed throughout the entire project. His responsiveness to emails and phone calls was impressive. Whenever we had questions or concerns, John was quick to address them, which made the whole process much smoother. John was reliable and maintained a high level of professionalism throughout the project. He was proactive in finding solutions when unexpected issues arose and ensured that the project stayed on track. The initial estimate he provided was quite accurate and there were no surprises when it came to the final cost. Overall, working with John and his crew was a pleasant and stress-free experience. He delivered high-quality work and maintained professionalism throughout the project. I would not hesitate to hire him again for any future renovation or contracting needs."

Jonathan R on October 2023

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FAQs for addition to existing structure building service projects in Kenilworth, 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 Kenilworth, 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.