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Find Addition to existing structure builders in Danbury

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

Thomas J. Curro Architect, P.C.

4.83(
27
)
Approved Pro

Thomas J. Curro Architect, P.C.

4.83(
27
)
Approved Pro
Customers say: Quick response
27 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 JR General Contractor, LLC

JR General Contractor, LLC

4.83(
15
)
Approved Pro

JR General Contractor, LLC

4.83(
15
)
Approved Pro
Customers say: Quick response
16 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 Waveleone Construction, LLC

Waveleone Construction, LLC

4.96(
25
)
Approved Pro

Waveleone Construction, LLC

4.96(
25
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
16 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 Douglas Marshall Cooper Associates, LLC

Douglas Marshall Cooper Associates, LLC

4.63(
22
)
Approved Pro

Douglas Marshall Cooper Associates, LLC

4.63(
22
)
Approved Pro
Customers say: Quick response
30 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 Pattison Group Construction

Pattison Group Construction

4.88(
17
)
Approved Pro

Pattison Group Construction

4.88(
17
)
Approved Pro
Customers say: Quick response
22 years of experience
Free onsite estimate

I have been in the service business for over 35 years. Originally from Ridgefield CT - starting out in the moving business, learning the great value of listening and learning from customers during one of life's most stressful times. Eventually moving into corporate sales in Manhattan with long hours of commute and travel and starting a family. In 2004 I decided to explore other professional opportunities where I could have more control over my time, energy, and creativity.

"29 stars. 45 stars. You get the idea. I’ve worked with a lot of different contractors in my life, and Rob and his incredible team were head and shoulders above them all. Meticulous, communicative, kind - delivering work that was on time, on budget, and done more beautifully than we ever could have hoped for. Couldn’t recommend more"

Jackie G on August 2025

I have been in the service business for over 35 years. Originally from Ridgefield CT - starting out in the moving business, learning the great value of listening and learning from customers during one of life's most stressful times. Eventually moving into corporate sales in Manhattan with long hours of commute and travel and starting a family. In 2004 I decided to explore other professional opportunities where I could have more control over my time, energy, and creativity.

"29 stars. 45 stars. You get the idea. I’ve worked with a lot of different contractors in my life, and Rob and his incredible team were head and shoulders above them all. Meticulous, communicative, kind - delivering work that was on time, on budget, and done more beautifully than we ever could have hoped for. Couldn’t recommend more"

Jackie G on August 2025


Avatar for Better Home Improvements, LLC

Better Home Improvements, LLC

4.92(
104
)
Approved Pro

Better Home Improvements, LLC

4.92(
104
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
21 years of experience

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 RODRIBUILDERS GENERAL CONSTRUCTION LLC

RODRIBUILDERS GENERAL CONSTRUCTION LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

RODRIBUILDERS GENERAL CONSTRUCTION LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1 years of experience
Free onsite estimate

RodriBuilders General Construction LLC specializes in custom decks, porches, patios, and full additions, delivering complete work from framing to finished interiors and exteriors. We provide physical samples of Trex®, TimberTech®, and all composite/PVC materials to help clients choose the best style and color. We also create custom deck designs before construction, allowing clients to visualize the final project and adjust details as needed. Known for precision, clear communication, and integrity, we treat every home as our own and deliver high-quality, professional results that exceed expectations.

RodriBuilders General Construction LLC specializes in custom decks, porches, patios, and full additions, delivering complete work from framing to finished interiors and exteriors. We provide physical samples of Trex®, TimberTech®, and all composite/PVC materials to help clients choose the best style and color. We also create custom deck designs before construction, allowing clients to visualize the final project and adjust details as needed. Known for precision, clear communication, and integrity, we treat every home as our own and deliver high-quality, professional results that exceed expectations.


Avatar for Omega Development LLC

Omega Development LLC

4.69(
13
)
Approved Pro

Omega Development LLC

4.69(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
55 local quotes requested
22 years of experience

At Omega Development LLC, we bring your home improvement dreams to life with precision, quality, and craftsmanship you can trust. Our licensed and insured team specializes in home renovations, custom construction, kitchen and bathroom remodeling, additions, and exterior upgrades. With years of experience in the residential construction industry, we pride ourselves on delivering exceptional results, honest communication, and dependable service—from the first consultation to project completion. Whether you’re looking to modernize your space, increase your property value, or build your dream home, Omega Development LLC is your trusted partner for reliable, high-quality construction solutions. ✅ Our Services Include: Full Home Renovations & Remodels Kitchen & Bathroom Remodeling Home Additions & Basement Finishing Roofing, Siding & Exterior Improvements Custom Home Builds & Design-Build Services & more...

"I had an emergency and needed immediate help. They responded immediately, did the work the next day, were priced fairly and did excellent work. They get my highest recommendation! "

Gary N on October 2025

At Omega Development LLC, we bring your home improvement dreams to life with precision, quality, and craftsmanship you can trust. Our licensed and insured team specializes in home renovations, custom construction, kitchen and bathroom remodeling, additions, and exterior upgrades. With years of experience in the residential construction industry, we pride ourselves on delivering exceptional results, honest communication, and dependable service—from the first consultation to project completion. Whether you’re looking to modernize your space, increase your property value, or build your dream home, Omega Development LLC is your trusted partner for reliable, high-quality construction solutions. ✅ Our Services Include: Full Home Renovations & Remodels Kitchen & Bathroom Remodeling Home Additions & Basement Finishing Roofing, Siding & Exterior Improvements Custom Home Builds & Design-Build Services & more...

"I had an emergency and needed immediate help. They responded immediately, did the work the next day, were priced fairly and did excellent work. They get my highest recommendation! "

Gary N on October 2025


Avatar for HM Construction & Painting

HM Construction & Painting

4.76(
137
)
Approved Pro

HM Construction & Painting

4.76(
137
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
75 local quotes requested

HM Construction and Painting was founded in 1990 to provide customers with the most incredible home remodeling and renovating services in Fairfield County. We Provide Architectural and Structural Drawing Design Services. We provide general contractor services to both residential and commercial customers. Above all, our goal is to give you an extraordinary standard of excellence, quality, and professionalism each and every time you hire us. We know that referrals run businesses, so we strive to give you the best experience possible. From painting to carpentry home repair and from roofing to flooring, there is very little we can’t do! We specialize in bringing homeowners’ dreams to life. Whether you’re making a few cosmetic changes or you’re gutting a room and starting over, we are fully equipped to take your project on. We proudly provide service to Greenwich, CT and Darien, CT, as well as the surrounding areas! Ready to get started? Take a look at our Services page to see what we can offer you. Don’t forget, we offer free estimates at your convenience, so feel free to contact us at any time for an estimate.

"We were very pleased with the job performed. Helio's team expanded and renovated our small master bathroom. We took out a large closet and converted it into our shower. Once started, they worked quickly and efficiently. We did have a few small hiccups, namely using our garage to cut tiles and mix thinset, which created an exorbitant amount of dust coating my tools, bikes, and anything else that was stored in the garage. We also had an issue with the cleanliness of the home after some of the workers left, however, after we brought it to Helio's attention, he made sure to tell the team to do a better job moving forward. Contract was a little confusing, so I would encourage many questions to clarify things ahead of time such as timeline for selecting certain items, confirming when the next payments are due etc. All in all, we're pleased with the project and how it turned out."

Mike M on February 2025

HM Construction and Painting was founded in 1990 to provide customers with the most incredible home remodeling and renovating services in Fairfield County. We Provide Architectural and Structural Drawing Design Services. We provide general contractor services to both residential and commercial customers. Above all, our goal is to give you an extraordinary standard of excellence, quality, and professionalism each and every time you hire us. We know that referrals run businesses, so we strive to give you the best experience possible. From painting to carpentry home repair and from roofing to flooring, there is very little we can’t do! We specialize in bringing homeowners’ dreams to life. Whether you’re making a few cosmetic changes or you’re gutting a room and starting over, we are fully equipped to take your project on. We proudly provide service to Greenwich, CT and Darien, CT, as well as the surrounding areas! Ready to get started? Take a look at our Services page to see what we can offer you. Don’t forget, we offer free estimates at your convenience, so feel free to contact us at any time for an estimate.

"We were very pleased with the job performed. Helio's team expanded and renovated our small master bathroom. We took out a large closet and converted it into our shower. Once started, they worked quickly and efficiently. We did have a few small hiccups, namely using our garage to cut tiles and mix thinset, which created an exorbitant amount of dust coating my tools, bikes, and anything else that was stored in the garage. We also had an issue with the cleanliness of the home after some of the workers left, however, after we brought it to Helio's attention, he made sure to tell the team to do a better job moving forward. Contract was a little confusing, so I would encourage many questions to clarify things ahead of time such as timeline for selecting certain items, confirming when the next payments are due etc. All in all, we're pleased with the project and how it turned out."

Mike M on February 2025


N.Z Home Improvement

4.99(
75
)
Approved Pro

N.Z Home Improvement

4.99(
75
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

We are a full service remodeling company. We specialize in kitchen and bath, tile, carpentry, painting exterior and interior, general and basement remodels. Call us we are here to address all your remodeling needs.

"All our projects were completed competently and on time. Communication was excellent. Work was efficiently done and areas left clean. Workers are nice people."

Judy S on October 2024

We are a full service remodeling company. We specialize in kitchen and bath, tile, carpentry, painting exterior and interior, general and basement remodels. Call us we are here to address all your remodeling needs.

"All our projects were completed competently and on time. Communication was excellent. Work was efficiently done and areas left clean. Workers are nice people."

Judy S on October 2024

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

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

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.