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Addition to existing structure builders in Norwalk

Avatar for FJ DeLeo & Company

FJ DeLeo & Company

241 Hamilton Ave #9
5.00(
2
)
Approved Pro

FJ DeLeo & Company

241 Hamilton Ave #9
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

Welcome to FJ DeLeo & Company! We have a single mission which is to achieve complete customer satisfaction! We work with only the highest quality materials and experienced professionals. Consistently focusing on the needs of our customers, providing personalized attention and a stress-free experience sets us apart from our competition and keep our customers coming back! Give us a call today!

"His work is awesome. He is easy to talk with, work with, and he included us in all steps of the process. He is meticulous and he's a great problem solver and is good with tricky upgrades. He has great attention to original detail to the home and to match it. He was very budget conscious with us, respectful, and worked within our budget."

Jen V on October 2018

Welcome to FJ DeLeo & Company! We have a single mission which is to achieve complete customer satisfaction! We work with only the highest quality materials and experienced professionals. Consistently focusing on the needs of our customers, providing personalized attention and a stress-free experience sets us apart from our competition and keep our customers coming back! Give us a call today!

"His work is awesome. He is easy to talk with, work with, and he included us in all steps of the process. He is meticulous and he's a great problem solver and is good with tricky upgrades. He has great attention to original detail to the home and to match it. He was very budget conscious with us, respectful, and worked within our budget."

Jen V on October 2018


Hill Top Remodeling, LLC

16 Unity Drive
4.68(
17
)
Approved Pro

Hill Top Remodeling, LLC

16 Unity Drive
4.68(
17
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 years of experience

With over 30 years of experience in the Remodeling industry, Hill Top Remodeling, LLC is your industry expert. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"If you want sloppy incomplete and incorrect work hire Hilltop. Bill did not use the products contracted for- used less expensive options without telling us - and hardly ever showed up. The job went way beyond promised finish date. Paid the full balance, Bill then left the work unfinished and ghosted us!"

T P on July 2025

With over 30 years of experience in the Remodeling industry, Hill Top Remodeling, LLC is your industry expert. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"If you want sloppy incomplete and incorrect work hire Hilltop. Bill did not use the products contracted for- used less expensive options without telling us - and hardly ever showed up. The job went way beyond promised finish date. Paid the full balance, Bill then left the work unfinished and ghosted us!"

T P on July 2025


M. Castle Construction LLC

184 Bouton Street
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

M. Castle Construction LLC

184 Bouton Street
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
20 years of experience
Free onsite estimate

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 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.


Joseph Giglio Construction

2 Jet Brook Road
5.00(
4
)
Approved Pro

Joseph Giglio Construction

2 Jet Brook Road
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
53 years of experience

Accomplish your construction goals easily with the help of Joseph Giglio Construction. Our licensed experts are always ready to assist you with any renovation or building project. Whether you want a custom home or new drywall installed in your office, our team has the skills to get the job done. Call us today!

"I have used them for 25 years there work is beyond reproach."

Leonard L on April 2017

Accomplish your construction goals easily with the help of Joseph Giglio Construction. Our licensed experts are always ready to assist you with any renovation or building project. Whether you want a custom home or new drywall installed in your office, our team has the skills to get the job done. Call us today!

"I have used them for 25 years there work is beyond reproach."

Leonard L on April 2017


Avatar for BHI Builder & Home Improvement LLC

BHI Builder & Home Improvement LLC

194 West Avenue Apt 4
5.00(
1
)
Approved Pro

BHI Builder & Home Improvement LLC

194 West Avenue Apt 4
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Builder Home Improvement 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. 20 years of 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.

"They were great, quick and creative."

Gustavo x on July 2022

Builder Home Improvement 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. 20 years of 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.

"They were great, quick and creative."

Gustavo x on July 2022


Avatar for JR General Contractor, LLC

JR General Contractor, LLC

22 Olive Street
4.83(
15
)
Approved Pro

JR General Contractor, LLC

22 Olive Street
4.83(
15
)
Approved Pro
Customers say: Quick response
15 years of experience
Free onsite estimate

JR General Contractor LLC, is committed to excellence 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.

"Yes they did an excellent job"

Louise R on May 2025

JR General Contractor LLC, is committed to excellence 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.

"Yes they did an excellent job"

Louise R on May 2025


Avatar for Devore & Company, LLC

Devore & Company, LLC

20 Hillandale Terrace
5.00(
1
)
Approved Pro

Devore & Company, LLC

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

We're 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 General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. 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!

"N/A"

Moira W on May 2021

We're 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 General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. 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!

"N/A"

Moira W on May 2021


Avatar for Newfield Development Company

Newfield Development Company

201 Marshall Ridge Road
5.00(
1
)
Approved Pro

Newfield Development Company

201 Marshall Ridge Road
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 years of experience

We provide a full range of contracting and construction management services. Planning, pre-construction and construction services can be delivered in a variety of ways to meet the specific needs of your project. Our projects include - New Homes - Additions, large & small - Renovations - New Kitchens - New Baths - Elevator Installations - Land Development - Sub-divisions - Home Repairs - Basement De-watering

"He was honest, completely upfront and trustworthy. He kept us informed of what was happening, and overall did a great job--very happy!"

Catherine N on August 2014

We provide a full range of contracting and construction management services. Planning, pre-construction and construction services can be delivered in a variety of ways to meet the specific needs of your project. Our projects include - New Homes - Additions, large & small - Renovations - New Kitchens - New Baths - Elevator Installations - Land Development - Sub-divisions - Home Repairs - Basement De-watering

"He was honest, completely upfront and trustworthy. He kept us informed of what was happening, and overall did a great job--very happy!"

Catherine N on August 2014


Henry Showah Construction, LLC

19 Sally Ann Drive
4.80(
13
)
Approved Pro

Henry Showah Construction, LLC

19 Sally Ann Drive
4.80(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
14 local quotes requested

Henry Showah Construction can skillfully design and remodel all types of projects. We take pride in our attention to detail. Please give us a call to set up an appointment.

"We contracted Henry as our GC to lead a 175K addition/renovation of our home. We added a master suite (w/ walk-in closet), another bedroom, a play/rec-room, and a workshop. We also took down the walls of an existing room to open up the common areas and built a hallway of pocket doors. We found him to be a great communicator. His subs were professional and courteous. Highly recommend him for others and would be happy to hire him again for future projects."

Peter D on January 2021

Henry Showah Construction can skillfully design and remodel all types of projects. We take pride in our attention to detail. Please give us a call to set up an appointment.

"We contracted Henry as our GC to lead a 175K addition/renovation of our home. We added a master suite (w/ walk-in closet), another bedroom, a play/rec-room, and a workshop. We also took down the walls of an existing room to open up the common areas and built a hallway of pocket doors. We found him to be a great communicator. His subs were professional and courteous. Highly recommend him for others and would be happy to hire him again for future projects."

Peter D on January 2021


Avatar for MDI Construction, LLC

MDI Construction, LLC

81 Kensett Dr
4.64(
18
)
Approved Pro

MDI Construction, LLC

81 Kensett Dr
4.64(
18
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
13 years of experience

We are a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customizable to each individual project. We specialize in carpentry work and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Very professional, courteous, timely, knowledgeable and amazing workmanship! Very pleased with their service, plan to use them going forward for all my home upgrades."

Pam M on April 2023

We are a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customizable to each individual project. We specialize in carpentry work and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Very professional, courteous, timely, knowledgeable and amazing workmanship! Very pleased with their service, plan to use them going forward for all my home upgrades."

Pam M on April 2023

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FAQs for addition to existing structure building service projects in Norwalk, CT

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 Norwalk, CT 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.