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Find Addition to existing structure builders in Northbrook

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
63 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


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
11 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


"They are excellent!"

Kristin M on September 2021

Welcome to REDFERN GROUP CORP We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and we are a family owned business as well. We look forward to speaking with you!

"They are excellent!"

Kristin M on September 2021


Hero...Your Construction Partner

4.00(
4
)
Approved Pro

Hero...Your Construction Partner

4.00(
4
)
Approved Pro
Customers say: Quick response
15 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 EcoBuild Plus

EcoBuild Plus

5.00(
2
)
Approved Pro

EcoBuild Plus

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

We Don't Just Build to Code. We Raise the Standard. Based in Mt. Prospect and serving the North & Northwest Suburbs for over 25 years, EcoBuild Plus is the industry trailblazer for homeowners who refuse to choose between high design and high performance. The EcoBuild Standard: We operate on a simple "Own Home" rule: We treat your project exactly like it is our own. We don't cover up mistakes; we hunt them down and fix them. We don't give "estimates" that change halfway through; we provide transparent Proposals with fixed scopes of work. What We Do: High-Performance Remodeling: Kitchens & Basements that flow with your home's ecosystem. Custom Additions: Seamlessly integrated new space. New Construction: Building science-backed luxury homes. Typical Project Range: $50k – $3M+. Why "Eco"Build? We aren't just "Green." We are "Smart." We build for Economic value (lower bills, less maintenance) and Ecosystem health (better air quality/comfort).

"I was so pleased with the work Eco Build did. They redid my bathroon in my office. It's now so beautiful."

Melinda P on September 2024

We Don't Just Build to Code. We Raise the Standard. Based in Mt. Prospect and serving the North & Northwest Suburbs for over 25 years, EcoBuild Plus is the industry trailblazer for homeowners who refuse to choose between high design and high performance. The EcoBuild Standard: We operate on a simple "Own Home" rule: We treat your project exactly like it is our own. We don't cover up mistakes; we hunt them down and fix them. We don't give "estimates" that change halfway through; we provide transparent Proposals with fixed scopes of work. What We Do: High-Performance Remodeling: Kitchens & Basements that flow with your home's ecosystem. Custom Additions: Seamlessly integrated new space. New Construction: Building science-backed luxury homes. Typical Project Range: $50k – $3M+. Why "Eco"Build? We aren't just "Green." We are "Smart." We build for Economic value (lower bills, less maintenance) and Ecosystem health (better air quality/comfort).

"I was so pleased with the work Eco Build did. They redid my bathroon in my office. It's now so beautiful."

Melinda P on September 2024


Macnon Builders, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Macnon Builders, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
39 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
33 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


LCF Consulting

4.56(
9
)
Approved Pro

LCF Consulting

4.56(
9
)
Approved Pro
Customers say: Quick response
26 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


Avatar for Don Lorenc construction services, Inc.

Don Lorenc construction services, Inc.

4.89(
28
)
Approved Pro

Don Lorenc construction services, Inc.

4.89(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 years of experience

Kitchen/Bath/Basement Remodeling Specialist. We don't offer small repair or handyman projects. We have over 25 years' experience with residential projects. We hold general contractor licenses for Chicago, Evanston, Highland Park and other Illinois areas. With a skilled workforce covered by full Workers' Compensation and Liability insurance, we're ready to begin work on your residential or commercial construction and remodel or renovation project as soon as you need us. During our over 30 years in business, we have worked as a general contractor for new housing developers as well as individual homeowners and investors to take care of a broad variety of construction needs. Our past projects have involved everything from small painting projects and rehabilitation work to room additions and full house remodels.

"We can not speak highly enough about our experience with Don Lorenc Construction. He and his crew are incredibly professional and clearly experts in their field. Everyone who works with Don is in-house, so he is able to complete work in the projected time period. They are immediately responsive to every question and request. From the initial planning to the final construction, they guided us and walked us through every step. The final product is beautiful and exactly what we had hoped for. Working with Don was a pleasure, and we highly recommend Don Lorenc Construcrion for your next project."

Rachel C on March 2023

Kitchen/Bath/Basement Remodeling Specialist. We don't offer small repair or handyman projects. We have over 25 years' experience with residential projects. We hold general contractor licenses for Chicago, Evanston, Highland Park and other Illinois areas. With a skilled workforce covered by full Workers' Compensation and Liability insurance, we're ready to begin work on your residential or commercial construction and remodel or renovation project as soon as you need us. During our over 30 years in business, we have worked as a general contractor for new housing developers as well as individual homeowners and investors to take care of a broad variety of construction needs. Our past projects have involved everything from small painting projects and rehabilitation work to room additions and full house remodels.

"We can not speak highly enough about our experience with Don Lorenc Construction. He and his crew are incredibly professional and clearly experts in their field. Everyone who works with Don is in-house, so he is able to complete work in the projected time period. They are immediately responsive to every question and request. From the initial planning to the final construction, they guided us and walked us through every step. The final product is beautiful and exactly what we had hoped for. Working with Don was a pleasure, and we highly recommend Don Lorenc Construcrion for your next project."

Rachel C on March 2023


Avatar for 4Ever Remodeling

4Ever Remodeling

4.95(
360
)
Approved Pro

4Ever Remodeling

4.95(
360
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
296 local quotes requested

Welcome to Stress-Free and High-Quality Remodeling. A great remodeling experience doesn’t happen by accident—it starts with choosing the right company that offers excellence through expert project consultants, professional designers, dedicated project managers, master installers, on-time project completion, and a 3-year project warranty. Our smooth, simple, and innovative approach ensures that every step of your remodeling journey is enjoyable, fulfilling, and frustration-free. From design to management to installation—we do it right. No exceptions. If you're ready to successfully complete your kitchen, bathroom, basement, or home remodeling project, schedule your in-home consultation with one of our friendly team members at 847-809-3355.

"The quality of work is fantastic, and Marek is the best project manager you could ask for. The reason I removed one star is because I believe the quoted contract price, specifically for allowances, can improve. You should expect to add a minimum of $20,000 to your contract price. I also recommend referring to your contract throughout to ensure you aren’t getting an extra charge for something that should be included. Like I said, the quality of work is fantastic, but the up front pricing can improve."

Laura J on November 2025

Welcome to Stress-Free and High-Quality Remodeling. A great remodeling experience doesn’t happen by accident—it starts with choosing the right company that offers excellence through expert project consultants, professional designers, dedicated project managers, master installers, on-time project completion, and a 3-year project warranty. Our smooth, simple, and innovative approach ensures that every step of your remodeling journey is enjoyable, fulfilling, and frustration-free. From design to management to installation—we do it right. No exceptions. If you're ready to successfully complete your kitchen, bathroom, basement, or home remodeling project, schedule your in-home consultation with one of our friendly team members at 847-809-3355.

"The quality of work is fantastic, and Marek is the best project manager you could ask for. The reason I removed one star is because I believe the quoted contract price, specifically for allowances, can improve. You should expect to add a minimum of $20,000 to your contract price. I also recommend referring to your contract throughout to ensure you aren’t getting an extra charge for something that should be included. Like I said, the quality of work is fantastic, but the up front pricing can improve."

Laura J on November 2025

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