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Addition to existing structure builders in Danbury

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


Avatar for Douglas Marshall Cooper Associates, LLC

Douglas Marshall Cooper Associates, LLC

57 Westchester Avenue
4.63(
22
)
Approved Pro

Douglas Marshall Cooper Associates, LLC

57 Westchester Avenue
4.63(
22
)
Approved Pro
Customers say: Quick response
29 years of experience
Free onsite estimate

Douglas Marshall Cooper Associates is a full-service design and construction firm whose practice encompasses both new and existing buildings of residential and commercial use, as well as speculative housing and development. Mr. Cooper’s office is located in Pound Ridge, New York and includes a staff of himself, an associate partner, three assistants and a host of carpenters, masons, and laborers, in addition to various subcontractors that work on projects small to large. Douglas Marshall Cooper Associate's roots are based in Construction, Design, Real Estate Investment and Development & Construction Management. Our portfolio includes a wide range of work across these fields. Our uniqueness comes from understanding what it is to be the Owner, the Developer and the Builder –- a trifecta that is evident in DMC Associate's core portfolio of prestigious residential, commercial, and corporate projects. Douglas Marshall Cooper Associates, LLC...a solid track record. A powerful future.

"I wish I could give zero stars. We hired Douglas for a kitchen remodel which involved installing a kitchen island, pantry, and all the related plumbing and electrical work. The communication between Douglas and his carpenter was terrible. We submitted sketches and agreed upon the design for the cabinets which were meant to be overlaid. When the island arrived, the cabinets were inset which did not match the rest of the kitchen. In addition, the kitchen island has split and cracked at more than half of the joints. The pantry cabinet has split and areas of unpainted MDF are showing. We have needed to paint and touch up many of these spots. Regarding the plumbing, we have had multiple significant leaks from piping and tubing that the team installed. Water has leaked even through the floor and into the basement. Upon review from other plumbers, all have confirmed the parts used were cheap and of low quality, and the workmanship was subpar. After a major leak in the middle of the night, we reached out to Douglas and respectfully voiced our issues and complaints. He ignored us for a full month, and then instead of simply stopping by to take a look at the problems (which would have been the first major step to alleviating our frustrations), he responded in a despicable manner. He even included the following quote from his lawyer, He laughed saying that perhaps you lost your job (due to the CoronaVirus) and were probably scrounging for any money you could scrape up. Who would want to work with someone like this?"

Keri P on October 2020

Douglas Marshall Cooper Associates is a full-service design and construction firm whose practice encompasses both new and existing buildings of residential and commercial use, as well as speculative housing and development. Mr. Cooper’s office is located in Pound Ridge, New York and includes a staff of himself, an associate partner, three assistants and a host of carpenters, masons, and laborers, in addition to various subcontractors that work on projects small to large. Douglas Marshall Cooper Associate's roots are based in Construction, Design, Real Estate Investment and Development & Construction Management. Our portfolio includes a wide range of work across these fields. Our uniqueness comes from understanding what it is to be the Owner, the Developer and the Builder –- a trifecta that is evident in DMC Associate's core portfolio of prestigious residential, commercial, and corporate projects. Douglas Marshall Cooper Associates, LLC...a solid track record. A powerful future.

"I wish I could give zero stars. We hired Douglas for a kitchen remodel which involved installing a kitchen island, pantry, and all the related plumbing and electrical work. The communication between Douglas and his carpenter was terrible. We submitted sketches and agreed upon the design for the cabinets which were meant to be overlaid. When the island arrived, the cabinets were inset which did not match the rest of the kitchen. In addition, the kitchen island has split and cracked at more than half of the joints. The pantry cabinet has split and areas of unpainted MDF are showing. We have needed to paint and touch up many of these spots. Regarding the plumbing, we have had multiple significant leaks from piping and tubing that the team installed. Water has leaked even through the floor and into the basement. Upon review from other plumbers, all have confirmed the parts used were cheap and of low quality, and the workmanship was subpar. After a major leak in the middle of the night, we reached out to Douglas and respectfully voiced our issues and complaints. He ignored us for a full month, and then instead of simply stopping by to take a look at the problems (which would have been the first major step to alleviating our frustrations), he responded in a despicable manner. He even included the following quote from his lawyer, He laughed saying that perhaps you lost your job (due to the CoronaVirus) and were probably scrounging for any money you could scrape up. Who would want to work with someone like this?"

Keri P on October 2020


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 Better Home Improvements, LLC

Better Home Improvements, LLC

24 East Ave #138
4.92(
104
)
Approved Pro

Better Home Improvements, LLC

24 East Ave #138
4.92(
104
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
47 local quotes requested

Better Home Improvements LLC - A+ RATED BY THE BETTER BUSINESS BUREAU. Award winning BEST CONTRACTOR: 2020 - 2021 - 2022 - 2023 Home Advisor Network! We are your premier choice for professional home repairs and maintenance projects. We have provided high quality work and friendly customer service for over 15 years. We take pride in our work, and can handle requests from roofing, siding, gutters, flagstone, masonry to fencing, decking, pergolas, basement/attic finishing, painting, tree care and much more. We work hard to provide the best service possible with integrity and accountability and constantly strive to exceed our customer’s expectations. We would love to help you with your next project! Give us a call today! Rob O'Keeffe & Sons Cell - 203.723.3003

"Working with the owner was easy and the team came in quickly and did nice work."

Jeff C on October 2024

Better Home Improvements LLC - A+ RATED BY THE BETTER BUSINESS BUREAU. Award winning BEST CONTRACTOR: 2020 - 2021 - 2022 - 2023 Home Advisor Network! We are your premier choice for professional home repairs and maintenance projects. We have provided high quality work and friendly customer service for over 15 years. We take pride in our work, and can handle requests from roofing, siding, gutters, flagstone, masonry to fencing, decking, pergolas, basement/attic finishing, painting, tree care and much more. We work hard to provide the best service possible with integrity and accountability and constantly strive to exceed our customer’s expectations. We would love to help you with your next project! Give us a call today! Rob O'Keeffe & Sons Cell - 203.723.3003

"Working with the owner was easy and the team came in quickly and did nice work."

Jeff C on October 2024


Avatar for Lonny Lewis Construction, LLC

Lonny Lewis Construction, LLC

PO Box 134
4.74(
19
)
Approved Pro

Lonny Lewis Construction, LLC

PO Box 134
4.74(
19
)
Approved Pro
Customers say: Quality work
10 years of experience
Free onsite estimate

Unlock your home's potential with Lonny Lewis Construction, LLC! Local experts with years of proven success deliver exceptional quality in stunning additions, dream kitchens, and flawless door, window, and deck installations. Count on us for lasting results and a home transformation you'll love. Satisfaction guaranteed! Please Call Today!

"Showed up within two days, gave us the quote immediately. Work was done a week later. It was done properly, quickly, and around the same price that we were quoted by much less professional people. Already hired Lonny to do other construction projects for us!"

Andrew L on June 2025

Unlock your home's potential with Lonny Lewis Construction, LLC! Local experts with years of proven success deliver exceptional quality in stunning additions, dream kitchens, and flawless door, window, and deck installations. Count on us for lasting results and a home transformation you'll love. Satisfaction guaranteed! Please Call Today!

"Showed up within two days, gave us the quote immediately. Work was done a week later. It was done properly, quickly, and around the same price that we were quoted by much less professional people. Already hired Lonny to do other construction projects for us!"

Andrew L on June 2025


Avatar for BCE Solutions LLC

BCE Solutions LLC

29 Patrick Dr
5.00(
2
)
Approved Pro

BCE Solutions LLC

29 Patrick Dr
5.00(
2
)
Approved Pro
14 years of experience
Free onsite estimate

BCE Solutions LLC is a dedicated general contractor and construction management firm specializing in the meticulous planning and execution of custom homes and various residential projects. Our core focus is to ensure that every home project is delivered not only to the highest standards of quality but also strictly on time and within budget, providing our clients with peace of mind and exceptional results.

"John did exceptional work buidling a fire pit area that included a retaining wall. He was professional, punctual, and cost effective. I would hire him again. "

Michael H on June 2025

BCE Solutions LLC is a dedicated general contractor and construction management firm specializing in the meticulous planning and execution of custom homes and various residential projects. Our core focus is to ensure that every home project is delivered not only to the highest standards of quality but also strictly on time and within budget, providing our clients with peace of mind and exceptional results.

"John did exceptional work buidling a fire pit area that included a retaining wall. He was professional, punctual, and cost effective. I would hire him again. "

Michael H on June 2025


Avatar for Thomas J. Curro Architect, P.C.

Thomas J. Curro Architect, P.C.

42 Lake Avenue EXT Suite 164
4.83(
27
)
Approved Pro

Thomas J. Curro Architect, P.C.

42 Lake Avenue EXT Suite 164
4.83(
27
)
Approved Pro
Customers say: Quick response
26 years of experience

Every construction project has inherent struggle and stress on the journey to successful completion. From bureaucratic red tape with municipalities to working within financial constraints to communication frustrations with construction professionals, clients need a guide to help them navigate the challenges of their project. With over 25 years of experience as a licensed architect, Tom has confronted all manner of challenges and their accompanying stress and frustration with the primary goal of taking the stress out of the construction project for his clients. As your guide throughout the project, he stands ready to educate you, advocate for you, and of course, provide you with excellent architectural drawings that pave the way to a smooth building process and superior end product. Tom offers his clients more than just a completed set of architectural plans. They also walk away with the peace of mind that comes from a job well designed and executed, from start to finish.

"null"

Maria D on January 2019

Every construction project has inherent struggle and stress on the journey to successful completion. From bureaucratic red tape with municipalities to working within financial constraints to communication frustrations with construction professionals, clients need a guide to help them navigate the challenges of their project. With over 25 years of experience as a licensed architect, Tom has confronted all manner of challenges and their accompanying stress and frustration with the primary goal of taking the stress out of the construction project for his clients. As your guide throughout the project, he stands ready to educate you, advocate for you, and of course, provide you with excellent architectural drawings that pave the way to a smooth building process and superior end product. Tom offers his clients more than just a completed set of architectural plans. They also walk away with the peace of mind that comes from a job well designed and executed, from start to finish.

"null"

Maria D on January 2019


Avatar for Waveleone Construction, LLC

Waveleone Construction, LLC

26 Greenwood Avenue
4.96(
25
)
Approved Pro

Waveleone Construction, LLC

26 Greenwood Avenue
4.96(
25
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
15 years of experience

With experience in project management, construction, and property management, we leverage our industry knowledge and vendor relationships to ensure your project receives the upmost quality to maximize your investment. Our management team and pre-qualified contractors possess the general characteristics of experience, reliability, and honesty. With outstanding communication skills, we coordinate the various trades, and assure the project meets the goals of on-time delivery, expected quality, and committed budget.

"Francis is very good! Polite, professional, considerate, and offers quality service!"

Juan S on April 2023

With experience in project management, construction, and property management, we leverage our industry knowledge and vendor relationships to ensure your project receives the upmost quality to maximize your investment. Our management team and pre-qualified contractors possess the general characteristics of experience, reliability, and honesty. With outstanding communication skills, we coordinate the various trades, and assure the project meets the goals of on-time delivery, expected quality, and committed budget.

"Francis is very good! Polite, professional, considerate, and offers quality service!"

Juan S on April 2023


Avatar for Lux-Windoors

Lux-Windoors

1 Walnut St
5.00(
12
)
Approved Pro

Lux-Windoors

1 Walnut St
5.00(
12
)
Approved Pro
Customers say: Quality work
2 years of experience
Free onsite estimate

A leading construction company in (LOCATION) focuses on providing optimum quality in various construction services. We take great pride in our work as we have during our () years in business. Thus, you can rest assured, that no matter what construction project we handle, we will be giving nothing but highly professional and expert works. Our galleries—collections of photos from previous construction projects—can attest to the amount of time, thought, and effort that we put into the services we provide.

"Peter was up front at the consultation and provided an estimate in line with his formal bid. He was very communicative throughout the whole process, walked is through questions and change orders, and gave us exactly what we wanted for our deck renovation. We highly recommend Peter and his crews for home renovations deck projects, and will definitely be using his company again in the future."

Stefanie B on May 2025

A leading construction company in (LOCATION) focuses on providing optimum quality in various construction services. We take great pride in our work as we have during our () years in business. Thus, you can rest assured, that no matter what construction project we handle, we will be giving nothing but highly professional and expert works. Our galleries—collections of photos from previous construction projects—can attest to the amount of time, thought, and effort that we put into the services we provide.

"Peter was up front at the consultation and provided an estimate in line with his formal bid. He was very communicative throughout the whole process, walked is through questions and change orders, and gave us exactly what we wanted for our deck renovation. We highly recommend Peter and his crews for home renovations deck projects, and will definitely be using his company again in the future."

Stefanie B on May 2025


Avatar for J A L Construction

J A L Construction

334 Exeter St
5.00(
4
)
Approved Pro

J A L Construction

334 Exeter St
5.00(
4
)
Approved Pro
50 years of experience
Free onsite estimate

J A L Construction has over 50 years of experience delivering high-quality construction and remodeling services. Our experience speaks for itself—we take pride in reliability, clear communication, and craftsmanship that stands the test of time. Whether you’re planning a full home addition, remodeling your kitchen or bathroom, or updating your exterior, we bring skill and dedication to every job. Our services include additions, major renovations, kitchen and bath remodels, deck and porch builds, siding installation, structural steel beam work, window replacement, and brick, stone, or paver patios and walkways. We work closely with homeowners to understand their vision and deliver results that exceed expectations. At J A L Construction, no job is too big or small. We look forward to earning your trust and helping bring your next project to life.

"The job was done in a timely manor without any issues. This was important because it is my rental unit,"

Sharon Z on August 2025

J A L Construction has over 50 years of experience delivering high-quality construction and remodeling services. Our experience speaks for itself—we take pride in reliability, clear communication, and craftsmanship that stands the test of time. Whether you’re planning a full home addition, remodeling your kitchen or bathroom, or updating your exterior, we bring skill and dedication to every job. Our services include additions, major renovations, kitchen and bath remodels, deck and porch builds, siding installation, structural steel beam work, window replacement, and brick, stone, or paver patios and walkways. We work closely with homeowners to understand their vision and deliver results that exceed expectations. At J A L Construction, no job is too big or small. We look forward to earning your trust and helping bring your next project to life.

"The job was done in a timely manor without any issues. This was important because it is my rental unit,"

Sharon Z on August 2025

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

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    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.