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Find Addition to existing structure builders in Oswego

Kingdom Construction & Remodeling, LLC

36 Wildmere Drive
5.00(
10
)
•Approved Pro

Kingdom Construction & Remodeling, LLC

36 Wildmere Drive
5.00(
10
)
•Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
15 years of experience

We are locally owned and operated. We provide unmatched customer service. We take pride in our professionalism and cleanliness on our job sites. Call us today for your free estimate! We look forward to doing business with you!

"This was the most painless experience ever! Everyone was professional and so kind Every step was explained to me as we went through the process I would hire him 1000 times over And I am so happy with the end result!!"

Jennifer d on August 2023

We are locally owned and operated. We provide unmatched customer service. We take pride in our professionalism and cleanliness on our job sites. Call us today for your free estimate! We look forward to doing business with you!

"This was the most painless experience ever! Everyone was professional and so kind Every step was explained to me as we went through the process I would hire him 1000 times over And I am so happy with the end result!!"

Jennifer d on August 2023

Avatar for Buildmax

Buildmax

621 South Grant Ave
4.75(
2
)
•Approved Pro

Buildmax

621 South Grant Ave
4.75(
2
)
•Approved Pro
Customers say: Quick response
24 years of experience
Free onsite estimate

With 20 years of experience in industry, Buildmax is your industry expert in DuPage county. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you that we will not leave your property until you are completely satisfied with our work. Give us a call today & we look forward to working with you!

"Hasn’t started yet. But did hire"

scott t on January 2024

With 20 years of experience in industry, Buildmax is your industry expert in DuPage county. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you that we will not leave your property until you are completely satisfied with our work. Give us a call today & we look forward to working with you!

"Hasn’t started yet. But did hire"

scott t on January 2024

Avatar for MT McCaw, Inc.

MT McCaw, Inc.

6755 GROVE RD
4.95(
11
)
•Approved Pro

MT McCaw, Inc.

6755 GROVE RD
4.95(
11
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Matt is extremely professional. 100% honest in dealing with us. I am very careful about referring contractors to others but I have no hesitation in doing so for MT McCaw!"

Tom V on June 2021

We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Matt is extremely professional. 100% honest in dealing with us. I am very careful about referring contractors to others but I have no hesitation in doing so for MT McCaw!"

Tom V on June 2021

Avatar for DemoWorks

DemoWorks

19 N Green St Unit 111
4.75(
18
)
•Approved Pro

DemoWorks

19 N Green St Unit 111
4.75(
18
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
6 years of experience

Demo Workers is a leading contractor for interior remodeling projects. Our team of professionals specializes in Kitchen Remodels, Bathroom Remodels and Major Home Renovation Projects. Our professionals have earned a reputation for high quality services at an affordable price point. Call DemoWorks for a quote to remodel your bathroom, kitchen, or commercial space.

"Excellent professional group of contractors that were on time & on budget, while adjusting for design changes approved as work unfolded."

Anne C on January 2025

Demo Workers is a leading contractor for interior remodeling projects. Our team of professionals specializes in Kitchen Remodels, Bathroom Remodels and Major Home Renovation Projects. Our professionals have earned a reputation for high quality services at an affordable price point. Call DemoWorks for a quote to remodel your bathroom, kitchen, or commercial space.

"Excellent professional group of contractors that were on time & on budget, while adjusting for design changes approved as work unfolded."

Anne C on January 2025

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
39 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

Avatar for DESIGNFirst Builders

DESIGNFirst Builders

1201 Norwood Avenue
4.62(
13
)
•Approved Pro

DESIGNFirst Builders

1201 Norwood Avenue
4.62(
13
)
•Approved Pro
Customers say: Quick response
52 local quotes requested
24 years of experience

Founded in 2006, Design First Builders is a premier home remodeling company in the Chicagoland area. With many years of experience and the industry’s top professionals, we are a one-stop-shop solution for all your home remodeling needs. We are a growing company reaching milestones every year. We specialize in Home Additions, Kitchen and Bathroom Remodels, Basement Remodels, Custom Home Design and Build & Custom Cabinetry. Located in Itasca puts us right in your backyard whether you’re a city dweller or live in the suburbs. Design First Builders is your builder for quality, affordable, and unique design-build projects. Call today to schedule your FREE in-home consultation, 630-250-7777.

"I would give zero stars but it makes you at least give one star. Do not use them they will take forever to finish the job. I believe they are running a Ponzi scheme of a company, or at least that is what it appears to be with the amount of work they are getting done around here. It seems like they used our money to get their bigger clients' jobs done and not our job. The amount of work they have finish in the past five months could have been done in 4 or 5 weeks. There have not shown up to work for multiple weeks, and when the do show up it is one or two days and they only get one thing done. Don't fall for the "you need to pay us money at different phases" and then they don't show up. They claim this doesn't usually happen but they are NOT doing anything to get things done any faster. They continue to tell us someone is coming to do such and such work and NOBODY shows up. "

Timothy E on October 2025

Founded in 2006, Design First Builders is a premier home remodeling company in the Chicagoland area. With many years of experience and the industry’s top professionals, we are a one-stop-shop solution for all your home remodeling needs. We are a growing company reaching milestones every year. We specialize in Home Additions, Kitchen and Bathroom Remodels, Basement Remodels, Custom Home Design and Build & Custom Cabinetry. Located in Itasca puts us right in your backyard whether you’re a city dweller or live in the suburbs. Design First Builders is your builder for quality, affordable, and unique design-build projects. Call today to schedule your FREE in-home consultation, 630-250-7777.

"I would give zero stars but it makes you at least give one star. Do not use them they will take forever to finish the job. I believe they are running a Ponzi scheme of a company, or at least that is what it appears to be with the amount of work they are getting done around here. It seems like they used our money to get their bigger clients' jobs done and not our job. The amount of work they have finish in the past five months could have been done in 4 or 5 weeks. There have not shown up to work for multiple weeks, and when the do show up it is one or two days and they only get one thing done. Don't fall for the "you need to pay us money at different phases" and then they don't show up. They claim this doesn't usually happen but they are NOT doing anything to get things done any faster. They continue to tell us someone is coming to do such and such work and NOBODY shows up. "

Timothy E on October 2025

Avatar for Angels Ladies Construction LLC

Angels Ladies Construction LLC

Avenue
4.43(
7
)
•Approved Pro

Angels Ladies Construction LLC

Avenue
4.43(
7
)
•Approved Pro
Customers say: Quick response
217 local quotes requested
Free onsite estimate

General Contractor Handy man service,Kitchens,Countertop,Floors,Bathroom,remodeling, Drywall installation painting,and much more. We have the experience and dedication to get the job done right! We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today! Comercial and residential services electric services. - -we are affiliated with the Better Business Bureau (BBB) and Workers Compensation Insurance bonded certification.Grand Opening Roofing License Certification!!!

"Great customer service"

Mike M on October 2025

General Contractor Handy man service,Kitchens,Countertop,Floors,Bathroom,remodeling, Drywall installation painting,and much more. We have the experience and dedication to get the job done right! We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today! Comercial and residential services electric services. - -we are affiliated with the Better Business Bureau (BBB) and Workers Compensation Insurance bonded certification.Grand Opening Roofing License Certification!!!

"Great customer service"

Mike M on October 2025

Avatar for Matrix Basement Finishing

Matrix Basement Finishing

3050 N Kennicott Ave
4.54(
275
)
•Approved Pro

Matrix Basement Finishing

3050 N Kennicott Ave
4.54(
275
)
•Approved Pro
Customers say: Quality work
284 local quotes requested
16 years of experience

We are a locally owned and operated basement finishing specialist servicing the Chicagoland area. Our focus is providing clients with a clear, upfront vision of expectations through a design/build approach. Our free design service provides potential customers with a collaborative consultation geared towards budget, wants, needs and lifestyle.

"The basement looks amazing, the crew did an excellent job. They were efficient, kept to their schedules, and did great work."

Matthew R on October 2025

We are a locally owned and operated basement finishing specialist servicing the Chicagoland area. Our focus is providing clients with a clear, upfront vision of expectations through a design/build approach. Our free design service provides potential customers with a collaborative consultation geared towards budget, wants, needs and lifestyle.

"The basement looks amazing, the crew did an excellent job. They were efficient, kept to their schedules, and did great work."

Matthew R on October 2025

Avatar for Prime Bath

Prime Bath

660 S Broadway
4.96(
28
)
•Approved Pro

Prime Bath

660 S Broadway
4.96(
28
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1596 local quotes requested

Prime Baths and Home Solutions of Illinois is the leader in exceptional custom service for bathroom remodeling projects in the greater Chicagoland area! We provide excellent craftsmanship while offering very competitive pricing, as well as in house installers. No Sub -Contractors! We additionally offer products that are backed up with a lifetime warranty, and have incredible financing offers! Rates as low as 0%. Contact us today to set up a FREE in home quote. We look forward to hearing from you!

"The men made a great new shower area! They cleaned up as well! I called the office to try to arrange the balance of work. Haven’t heard back from anyone - but yes! The work great!"

Jean H on November 2024

Prime Baths and Home Solutions of Illinois is the leader in exceptional custom service for bathroom remodeling projects in the greater Chicagoland area! We provide excellent craftsmanship while offering very competitive pricing, as well as in house installers. No Sub -Contractors! We additionally offer products that are backed up with a lifetime warranty, and have incredible financing offers! Rates as low as 0%. Contact us today to set up a FREE in home quote. We look forward to hearing from you!

"The men made a great new shower area! They cleaned up as well! I called the office to try to arrange the balance of work. Haven’t heard back from anyone - but yes! The work great!"

Jean H on November 2024

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

See all articles
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    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.