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Find Addition to existing structure builders in Downers Grove

J & J Home Builders

1151 Highland Avenue
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

J & J Home Builders

1151 Highland Avenue
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

J & J Home Builders 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.

J & J Home Builders 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.


Avatar for Imperial 1 Construction Inc.

Imperial 1 Construction Inc.

5.00(
8
)
Approved Pro

Imperial 1 Construction Inc.

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 local quotes requested

Founded in 2009, Imperial 1 Construction is a family-owned and operated company dedicated to transforming visions into reality. As a local business, we pride ourselves on offering personalized service that makes every client feel like part of our family. At Imperial 1 Construction, we understand that your home or project is more than just a building—it's a dream. That's why we commit to delivering exceptional craftsmanship, meticulous attention to detail, and a heartfelt dedication to your satisfaction. Our team is passionate about creating spaces that reflect your unique style and needs. From initial consultation to project completion, we work closely with you to ensure every aspect of the construction process exceeds your expectations. We believe in building not just homes, but lasting relationships with our clients, fostering a sense of community and trust. Whether you're looking to build your dream home, renovate an existing space, or embark on a new project, Imperial 1 Construction is here to guide you every step of the way. Experience the difference of a construction company that treats you like family—where your dreams become our mission, and your satisfaction is our ultimate goal. Choose Imperial 1 Construction, where quality meets compassion, and excellence is a family tradition.

"We had a great experience! Javier was onsite and hands-on with the project. He was also extremely responsive. He ensured everything was well coordinated and had his crew working around the clock to minimize the amount of time we had to be closed. I have had work done in my home that took months and this was an extensive remodel done in a couple days - amazing!! The workmanship was also top quality and Javier made sure we were satisfied with everything that was done. I would highly recommend!"

Debby B on August 2024

Founded in 2009, Imperial 1 Construction is a family-owned and operated company dedicated to transforming visions into reality. As a local business, we pride ourselves on offering personalized service that makes every client feel like part of our family. At Imperial 1 Construction, we understand that your home or project is more than just a building—it's a dream. That's why we commit to delivering exceptional craftsmanship, meticulous attention to detail, and a heartfelt dedication to your satisfaction. Our team is passionate about creating spaces that reflect your unique style and needs. From initial consultation to project completion, we work closely with you to ensure every aspect of the construction process exceeds your expectations. We believe in building not just homes, but lasting relationships with our clients, fostering a sense of community and trust. Whether you're looking to build your dream home, renovate an existing space, or embark on a new project, Imperial 1 Construction is here to guide you every step of the way. Experience the difference of a construction company that treats you like family—where your dreams become our mission, and your satisfaction is our ultimate goal. Choose Imperial 1 Construction, where quality meets compassion, and excellence is a family tradition.

"We had a great experience! Javier was onsite and hands-on with the project. He was also extremely responsive. He ensured everything was well coordinated and had his crew working around the clock to minimize the amount of time we had to be closed. I have had work done in my home that took months and this was an extensive remodel done in a couple days - amazing!! The workmanship was also top quality and Javier made sure we were satisfied with everything that was done. I would highly recommend!"

Debby B on August 2024


"No comments provided."

Mary F on February 2019

At Creative Concepts Construction, Inc., we understand the importance of doing quality work, with no surprises. Let us help you with your next project. You can always count on us for reliability, great communication, integrity, and quality work. We look forward to earning your business!

"No comments provided."

Mary F on February 2019


CCCM Inc

8 Lonsdale Rd
5.00(
214
)
Approved Pro

CCCM Inc

8 Lonsdale Rd
5.00(
214
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
46 local quotes requested

5 employees. Uses subs when needed. Cost is determined by the job. No travel charges. Extra charges for emergency service may apply. dba: Corporate Consulting & Construction Mgmt. Handyman and small jobs welcome. We offer our contractor discounted cost on Cabinets and other products on full kitchen and/or Bathroom remodels. Ask for Details when you call!

"We did a remodel of our Kitchen and Master bath. The kitchen was a big project, taking out a wall and removing the back door, enlarging our bay to accommodate sliding doors. New countertops, cabinets and an island were installed. Tile was removed from the kitchen/ foyer and replaced with hardwood floors. They gave us a time frame for 4 months. We added on painting, carpet installation. tiling a hallway and new vanity and toilet in the half bath. They accommodated the extra work and completed it in a timely manner, without interruption for other jobs. We could not be more pleased with the work. Everything turned out beautifully. Terry, Jody and Brian were a pleasure to work with. They were reliable, on time and cleaned up daily. Jody is a perfectionist and if something wasn't done right it would be redone to meet his standards. They were helpful with design and handled every add on. They did not ask for money up front and kept cost updated frequently."

Leo R on July 2024

5 employees. Uses subs when needed. Cost is determined by the job. No travel charges. Extra charges for emergency service may apply. dba: Corporate Consulting & Construction Mgmt. Handyman and small jobs welcome. We offer our contractor discounted cost on Cabinets and other products on full kitchen and/or Bathroom remodels. Ask for Details when you call!

"We did a remodel of our Kitchen and Master bath. The kitchen was a big project, taking out a wall and removing the back door, enlarging our bay to accommodate sliding doors. New countertops, cabinets and an island were installed. Tile was removed from the kitchen/ foyer and replaced with hardwood floors. They gave us a time frame for 4 months. We added on painting, carpet installation. tiling a hallway and new vanity and toilet in the half bath. They accommodated the extra work and completed it in a timely manner, without interruption for other jobs. We could not be more pleased with the work. Everything turned out beautifully. Terry, Jody and Brian were a pleasure to work with. They were reliable, on time and cleaned up daily. Jody is a perfectionist and if something wasn't done right it would be redone to meet his standards. They were helpful with design and handled every add on. They did not ask for money up front and kept cost updated frequently."

Leo R on July 2024


Avatar for EcoBuild Plus

EcoBuild Plus

409 West Algonquin Road
5.00(
2
)
Approved Pro

EcoBuild Plus

409 West Algonquin Road
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 local quotes requested

Discover the difference with EcoBuild+, your trusted partner for high-quality home renovations and remodeling. Our experienced team specializes in transforming homes with precision, style, and a commitment to excellence. Whether you’re upgrading a kitchen, modernizing a bathroom, or planning a full home renovation, we bring your vision to life with unmatched craftsmanship and attention to detail. At EcoBuild+, we believe in clear communication, reliable timelines, and delivering results that exceed expectations.

"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

Discover the difference with EcoBuild+, your trusted partner for high-quality home renovations and remodeling. Our experienced team specializes in transforming homes with precision, style, and a commitment to excellence. Whether you’re upgrading a kitchen, modernizing a bathroom, or planning a full home renovation, we bring your vision to life with unmatched craftsmanship and attention to detail. At EcoBuild+, we believe in clear communication, reliable timelines, and delivering results that exceed expectations.

"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


Avatar for J K Complete Remodeling & Construction Inc

J K Complete Remodeling & Construction Inc

304 King Ln
4.94(
269
)
Approved Pro

J K Complete Remodeling & Construction Inc

304 King Ln
4.94(
269
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
48 local quotes requested

8 employees. Cost is determined by the job. No travel charges. DBA JK Complete Remodeling. JK Complete Remodeling and Construction sub-contracts all of our Electrical work through Swiss Electric. Swiss Electric is owned and operated by Gilbert Bottcher, and is located at 1473 Driftwood Ave, Palatine, IL 60067, and can be reached at (312) 342-4333. Their IL Electrical Contractor License number is SE6594. JK Complete Remodeling & Construction sub-contracts all of our Plumbing through Aquarius Plumbing Services. Aquaius Plumbing is owned and operated by Mariusz Gapinski, and is located at 406 W. Marion St., Prospect Heights, IL, 60070, and can be reached at 847-409-7894. Aquarius Services is licensed and bonded by the City of Chicago. License #058-180662.

"I’ve always wanted a second bathroom. I contacted JK Complete R&C. Jack came to my home and assessed the would be project. Jack gave me a reasonable price, start and proposed finish date. Then I met the crew John, Mike and Ziggy. We had a great relationship. Everything that was to be accomplished was explained to me on a daily bases. By the end of the project we had a bond and it felt like family. I also learned quite a bit in the process. I am total fascinated with my new bathroom. I have already recommended JK Complete to family members."

Marva L on June 2024

8 employees. Cost is determined by the job. No travel charges. DBA JK Complete Remodeling. JK Complete Remodeling and Construction sub-contracts all of our Electrical work through Swiss Electric. Swiss Electric is owned and operated by Gilbert Bottcher, and is located at 1473 Driftwood Ave, Palatine, IL 60067, and can be reached at (312) 342-4333. Their IL Electrical Contractor License number is SE6594. JK Complete Remodeling & Construction sub-contracts all of our Plumbing through Aquarius Plumbing Services. Aquaius Plumbing is owned and operated by Mariusz Gapinski, and is located at 406 W. Marion St., Prospect Heights, IL, 60070, and can be reached at 847-409-7894. Aquarius Services is licensed and bonded by the City of Chicago. License #058-180662.

"I’ve always wanted a second bathroom. I contacted JK Complete R&C. Jack came to my home and assessed the would be project. Jack gave me a reasonable price, start and proposed finish date. Then I met the crew John, Mike and Ziggy. We had a great relationship. Everything that was to be accomplished was explained to me on a daily bases. By the end of the project we had a bond and it felt like family. I also learned quite a bit in the process. I am total fascinated with my new bathroom. I have already recommended JK Complete to family members."

Marva L on June 2024


Avatar for KSRP Construction, Inc.

KSRP Construction, Inc.

38W369 Lea Dr
4.69(
16
)
Approved Pro

KSRP Construction, Inc.

38W369 Lea Dr
4.69(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
110 local quotes requested

As a Remodeling and Roofing company, dedicated to providing premier customer service, it is important to us to deliver unparalleled workmanship on every assignment.​ We are accredited, licensed, bonded, and insured. With our experience, contractors and expertise, we can provide the support your project needs for every construction project. We will work with you to meet deadlines and coordinate with other related projects. We will maintain open communication with you to keep you up to date on the status of your job. We do this to guarantee that the project is completed according to your preferences. We combine our industry knowledge, the highest quality building supplies and equipment, and our dedication to deliver exceptional service to our clients. We will stay in touch, keeping you up to date on both the paperwork and renovation process with our general contractor.

"Absolutely the best company for all your construction needs. Outstanding deck repair and painting. I am thrilled about the outcome."

Robert T on May 2025

As a Remodeling and Roofing company, dedicated to providing premier customer service, it is important to us to deliver unparalleled workmanship on every assignment.​ We are accredited, licensed, bonded, and insured. With our experience, contractors and expertise, we can provide the support your project needs for every construction project. We will work with you to meet deadlines and coordinate with other related projects. We will maintain open communication with you to keep you up to date on the status of your job. We do this to guarantee that the project is completed according to your preferences. We combine our industry knowledge, the highest quality building supplies and equipment, and our dedication to deliver exceptional service to our clients. We will stay in touch, keeping you up to date on both the paperwork and renovation process with our general contractor.

"Absolutely the best company for all your construction needs. Outstanding deck repair and painting. I am thrilled about the outcome."

Robert T on May 2025


Avatar for Don Lorenc construction services, Inc.

Don Lorenc construction services, Inc.

22826 S Krueger Rd
4.89(
28
)
Approved Pro

Don Lorenc construction services, Inc.

22826 S Krueger Rd
4.89(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
46 local quotes requested

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 Hanlons Construction Inc.

Hanlons Construction Inc.

20550 Lagrange Rd
4.54(
26
)
Approved Pro

Hanlons Construction Inc.

20550 Lagrange Rd
4.54(
26
)
Approved Pro
Customers say: Quality work
35 local quotes requested
43 years of experience

SINCE 1982, HANLON'S CONSTRUCTION INC. HAS BEEN SERVING THE GREATER CHICAGOLAND AREA FOR MOR THAN 42 YEARS! New Homes / Room Additions / Kitchens / Bathrooms / Basements / Roofing / Siding / Windows / Solar Panels A+ RATING ON THE BETTER BUSINESS BUREAU 4.8 Star Rating On Angies List

"Hanlons did a phenomenal job on our replacement roof. We highly recommend them to all of our friends and family."

Ruth T on January 2025

SINCE 1982, HANLON'S CONSTRUCTION INC. HAS BEEN SERVING THE GREATER CHICAGOLAND AREA FOR MOR THAN 42 YEARS! New Homes / Room Additions / Kitchens / Bathrooms / Basements / Roofing / Siding / Windows / Solar Panels A+ RATING ON THE BETTER BUSINESS BUREAU 4.8 Star Rating On Angies List

"Hanlons did a phenomenal job on our replacement roof. We highly recommend them to all of our friends and family."

Ruth T on January 2025


Avatar for Wentworth Construction

Wentworth Construction

870 Schultz St
5.00(
21
)
Approved Pro

Wentworth Construction

870 Schultz St
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

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FAQs for addition to existing structure building service projects in Downers Grove, IL

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Downers Grove, 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.