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Find Second story addition builders in Algonquin

Avatar for Matrix Basement Finishing

Matrix Basement Finishing

4.54(
276
)
Approved Pro

Matrix Basement Finishing

4.54(
276
)
Approved Pro
Customers say: Quality work
255 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.

"Very organized. As a working parent in a household with small children, Matrix’s process was very smooth. Once permits were approved, building moved according to the quoted timeline. We appreciated the app that kept homeowners in the loop about who would be on site on a given day and what was being done. Project oversight was very good. Our project manager was very responsive to our questions/concerns and a helpful go-between with the sub-contractors and inspectors."

Joanne C on November 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.

"Very organized. As a working parent in a household with small children, Matrix’s process was very smooth. Once permits were approved, building moved according to the quoted timeline. We appreciated the app that kept homeowners in the loop about who would be on site on a given day and what was being done. Project oversight was very good. Our project manager was very responsive to our questions/concerns and a helpful go-between with the sub-contractors and inspectors."

Joanne C on November 2025


Avatar for Rowe Construction

Rowe Construction

4.81(
112
)
Approved Pro

Rowe Construction

4.81(
112
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
378 local quotes requested

We are a family owned business with over 40 years of construction experience between us. We specialize in Kitchen and Bathroom Remodels, Basements, General Remodels, Deck Building. Good quality craftsmanship is what we deliver and nothing is more important to us than your satisfaction and referral. 10 employees, billing procedures depend on the job, free estimates.We service the Northern suburbs of Chicago & Southern Wisconsin.

"Remodel went extremely well even with material delays (not ordered through Rowe construction.) They were able to pivot and work on different areas of this extensive remodel. This crew showed up every day and notified us if they were not going to come or if they were delayed.They also pointed out and/or were able to troubleshoot areas of design that wouldn’t look aesthetically pleasing. In addition, they cleaned up the interior each day and regularly picked up construction waste placed in the garage during this process."

polly k on April 2023

We are a family owned business with over 40 years of construction experience between us. We specialize in Kitchen and Bathroom Remodels, Basements, General Remodels, Deck Building. Good quality craftsmanship is what we deliver and nothing is more important to us than your satisfaction and referral. 10 employees, billing procedures depend on the job, free estimates.We service the Northern suburbs of Chicago & Southern Wisconsin.

"Remodel went extremely well even with material delays (not ordered through Rowe construction.) They were able to pivot and work on different areas of this extensive remodel. This crew showed up every day and notified us if they were not going to come or if they were delayed.They also pointed out and/or were able to troubleshoot areas of design that wouldn’t look aesthetically pleasing. In addition, they cleaned up the interior each day and regularly picked up construction waste placed in the garage during this process."

polly k on April 2023


Avatar for Prime Bath

Prime Bath

4.96(
28
)
Approved Pro

Prime Bath

4.96(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1652 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


Avatar for Century City Baths

Century City Baths

4.74(
34
)
Approved Pro

Century City Baths

4.74(
34
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1417 local quotes requested

Century City Baths is your one stop shop for all your bathroom remodel needs. Whether it's a tub to shower conversion, or an update to a moldy or out of date tub/shower system, or a full gut to your bathroom, we are the complete turn-key solution. Using only the highest quality and most durable materials we are able to design a bathroom that will truly last a lifetime and eliminate most maintenance. Our design consultants work hand-in-hand with our customers to make their dreams come true. Our production team works as a team with you and your design consultant to make the process as quick and efficient as possible. Serving all of Chicagoland, our business model has always been that the best customer is the one that is the most educated. That is why all of our estimates are free of charge and are good for a full calendar year. We are confident that the quality, design, longevity, and above all, affordability will make us a no-brainer to every customer. Book your no-obligation, completely free of charge consultation today, and you can have the bathroom of your dreams too!

"Becoming a new dad changes how you look at your home — suddenly, every space has to make sense for family life. We decided to remodel our basement bathroom to make it more comfortable for guests and easier for us as we adjust to life with a newborn. Century City Baths made the whole process incredibly smooth. The new bathroom has become a lifesaver for late-night routines, diaper changes, and when family visits to help with the baby. It’s functional, comfortable, and looks great too. For a first-time dad juggling a lot, having one less thing to worry about is a huge relief. Century City Baths turned a dark basement corner into a space that actually works for our growing family — clean, durable, and thoughtfully built. Couldn’t ask for a better experience."

Victor B on November 2025

Century City Baths is your one stop shop for all your bathroom remodel needs. Whether it's a tub to shower conversion, or an update to a moldy or out of date tub/shower system, or a full gut to your bathroom, we are the complete turn-key solution. Using only the highest quality and most durable materials we are able to design a bathroom that will truly last a lifetime and eliminate most maintenance. Our design consultants work hand-in-hand with our customers to make their dreams come true. Our production team works as a team with you and your design consultant to make the process as quick and efficient as possible. Serving all of Chicagoland, our business model has always been that the best customer is the one that is the most educated. That is why all of our estimates are free of charge and are good for a full calendar year. We are confident that the quality, design, longevity, and above all, affordability will make us a no-brainer to every customer. Book your no-obligation, completely free of charge consultation today, and you can have the bathroom of your dreams too!

"Becoming a new dad changes how you look at your home — suddenly, every space has to make sense for family life. We decided to remodel our basement bathroom to make it more comfortable for guests and easier for us as we adjust to life with a newborn. Century City Baths made the whole process incredibly smooth. The new bathroom has become a lifesaver for late-night routines, diaper changes, and when family visits to help with the baby. It’s functional, comfortable, and looks great too. For a first-time dad juggling a lot, having one less thing to worry about is a huge relief. Century City Baths turned a dark basement corner into a space that actually works for our growing family — clean, durable, and thoughtfully built. Couldn’t ask for a better experience."

Victor B on November 2025


Holague Services

5.00(
2
)
Approved Pro

Holague Services

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1833 local quotes requested

Holague Pavers 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.

"We are so happy with the job Holague Services did for us! We have special needs grandchildren and they helped us extend a half wall to keep our babies safe. They were professional, on time,had great communication and respected us and our home. Highly recommend!"

Lisa J on October 2025

Holague Pavers 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.

"We are so happy with the job Holague Services did for us! We have special needs grandchildren and they helped us extend a half wall to keep our babies safe. They were professional, on time,had great communication and respected us and our home. Highly recommend!"

Lisa J on October 2025


Paramount Construction

No reviews yet

Paramount Construction

No reviews yet
15 years of experience

Paramount Construction employs 20 people from management to skilled professionals who are trained in the fields from breaking ground to finishing. We accept all major credit cards and will work with you to make your project possible.

Paramount Construction employs 20 people from management to skilled professionals who are trained in the fields from breaking ground to finishing. We accept all major credit cards and will work with you to make your project possible.


Avatar for J.B. BRICKWORKS, INC.

J.B. BRICKWORKS, INC.

4.43(
7
)

J.B. BRICKWORKS, INC.

4.43(
7
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Award-Winning Hardscape and Masonry Since 1990. We have been installing outdoor environments in the Chicago area for 25 years. Our crews are built with highly qualified individuals, paying special attention to detail. We use only the highest quality products and construction methods for each project. "The difference is in the details".

Award-Winning Hardscape and Masonry Since 1990. We have been installing outdoor environments in the Chicago area for 25 years. Our crews are built with highly qualified individuals, paying special attention to detail. We use only the highest quality products and construction methods for each project. "The difference is in the details".


Avatar for Auto Transport - United Freight Of America

Auto Transport - United Freight Of America

4.84(
920
)

Auto Transport - United Freight Of America

4.84(
920
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021


Marshfield Home Improvements Inc.

5.00(
1
)

Marshfield Home Improvements Inc.

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We do work Insurance restoration, renovation. We specialize in Kitchens, Bathrooms, Decks, and Basements. Let's discuss how we can help you on your next project.

We do work Insurance restoration, renovation. We specialize in Kitchens, Bathrooms, Decks, and Basements. Let's discuss how we can help you on your next project.


Avatar for Concrete Crawlspaces & Basement Waterproofing Corp

Concrete Crawlspaces & Basement Waterproofing Corp

4.75(
154
)

Concrete Crawlspaces & Basement Waterproofing Corp

4.75(
154
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Licensed Plumbing Contractor - SafeSeal by Concrete Crawlspaces & Basement Waterproofing. Crawlspace Encapsulation, Sewer Backup Prevention, Modified Overhead Sewers, Basement Floor Replacement, Underpinning, Foundation Crack Repair, Carbon Fiber Wall Straps, Wall Anchors, Spray Foam Insulation, Discounts for Angie's List Members. Financing available. Award winning.

"Steve Gavin, the owner came out and provided me with a great price that was inclusive of the entire scope of the project. During our meeting he took the time to explain the process that his company uses. Once the permits were issued the crew arrived the next morning at 7:00 a.m. as promised. The crew met the deadline for a 1:30 inspection from the Village of Deerfield. They not only met the deadline but they passed the inspection without any issues to be corrected. The crew worked until 7:00 p.m. completing the job. I would also note that they left my home spotless!"

Richard R on September 2019

Licensed Plumbing Contractor - SafeSeal by Concrete Crawlspaces & Basement Waterproofing. Crawlspace Encapsulation, Sewer Backup Prevention, Modified Overhead Sewers, Basement Floor Replacement, Underpinning, Foundation Crack Repair, Carbon Fiber Wall Straps, Wall Anchors, Spray Foam Insulation, Discounts for Angie's List Members. Financing available. Award winning.

"Steve Gavin, the owner came out and provided me with a great price that was inclusive of the entire scope of the project. During our meeting he took the time to explain the process that his company uses. Once the permits were issued the crew arrived the next morning at 7:00 a.m. as promised. The crew met the deadline for a 1:30 inspection from the Village of Deerfield. They not only met the deadline but they passed the inspection without any issues to be corrected. The crew worked until 7:00 p.m. completing the job. I would also note that they left my home spotless!"

Richard R on September 2019

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FAQs for second story addition building service projects in Algonquin, IL

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Algonquin, IL homeowners’ guide to second story addition building services

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