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Addition to existing structure builders in Baltimore

Avatar for 12 Figure Consultations

12 Figure Consultations

8813 Liberty Rd
4.36(
7
)
•Approved Pro

12 Figure Consultations

8813 Liberty Rd
4.36(
7
)
•Approved Pro
Customers say: Quality work
21 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"This company, 12 Figure Consultations, came to my house and gave me a quote. Simple job, rake up all the sticks, take up the old mulch and put down the new. I gave them deposit. When they returned for the job, they did half of it, and then said they wanted more money than the original proposal to finish it - 2 times more. When I disagreed to pay 2 times more money, they started arguing with me, telling me I am liar, and behaving aggressively that I feared for my safety. Then his partner was following me around my yard and telling me he liked me and asking if I liked him! I was very afraid for my safety and I told them to just go away, because not only I was afraid for my safety, but their shoddy business practices so disrespectful, give one price, do half the job, then demand more money than the original to finish. I told them take their trailors and just to leave but they wouldn't. Finally I started raking it myself, and then I paid them the more money just to get them to go away. When they drove away, the workers skidded his tires in the grass in my yard and went speeding down the street. Then he drove around the street 3 times. I still fear for my safety and even afraid to write this review."

Harley H on April 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"This company, 12 Figure Consultations, came to my house and gave me a quote. Simple job, rake up all the sticks, take up the old mulch and put down the new. I gave them deposit. When they returned for the job, they did half of it, and then said they wanted more money than the original proposal to finish it - 2 times more. When I disagreed to pay 2 times more money, they started arguing with me, telling me I am liar, and behaving aggressively that I feared for my safety. Then his partner was following me around my yard and telling me he liked me and asking if I liked him! I was very afraid for my safety and I told them to just go away, because not only I was afraid for my safety, but their shoddy business practices so disrespectful, give one price, do half the job, then demand more money than the original to finish. I told them take their trailors and just to leave but they wouldn't. Finally I started raking it myself, and then I paid them the more money just to get them to go away. When they drove away, the workers skidded his tires in the grass in my yard and went speeding down the street. Then he drove around the street 3 times. I still fear for my safety and even afraid to write this review."

Harley H on April 2024

Avatar for Masonry Stonework

Masonry Stonework

12312 Garrison Forest Rd
5.00(
3
)
•Approved Pro

Masonry Stonework

12312 Garrison Forest Rd
5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

We are a locally owned and operated company with over 22 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 handyman/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!

"Great service and good work!"

Franklin F on February 2023

We are a locally owned and operated company with over 22 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 handyman/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!

"Great service and good work!"

Franklin F on February 2023

Avatar for Turner Troxell Company

Turner Troxell Company

1102 East Joppa Rd
5.00(
7
)
•Approved Pro

Turner Troxell Company

1102 East Joppa Rd
5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

Turner Troxell Company is Veteran Owned, Family Owned small business servicing the Towson and Baltimore County area for over 20 years. We specialize in home additions, large scale projects, kitchens, bathrooms, basements, decks and patios.

"His price is fair and the quality of his work is excellent."

Joan K on July 2013

Turner Troxell Company is Veteran Owned, Family Owned small business servicing the Towson and Baltimore County area for over 20 years. We specialize in home additions, large scale projects, kitchens, bathrooms, basements, decks and patios.

"His price is fair and the quality of his work is excellent."

Joan K on July 2013

Avatar for GaaJ

GaaJ

11711 Ash Rd
5.00(
2
)
•Approved Pro

GaaJ

11711 Ash Rd
5.00(
2
)
•Approved Pro
Customers say: Quick response
19 years of experience
Free onsite estimate

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!

"GAAJ’s team were truly professionals. They listened to our needs and made my grandmother’s vision of a room, a reality. They were passionate and went above and beyond with details on the construction. If you have any building needs, I highly recommend GAAJ!"

Stephanie K on August 2025

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!

"GAAJ’s team were truly professionals. They listened to our needs and made my grandmother’s vision of a room, a reality. They were passionate and went above and beyond with details on the construction. If you have any building needs, I highly recommend GAAJ!"

Stephanie K on August 2025

Complete Construction Services, LLC

808 Glen Eagles Ct 42071
5.00(
1
)
•Approved Pro

Complete Construction Services, LLC

808 Glen Eagles Ct 42071
5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

Complete Construction Services 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. 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 did a great job very professional and the quality of work is great."

Barry M on November 2020

Complete Construction Services 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. 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 did a great job very professional and the quality of work is great."

Barry M on November 2020

Avatar for Elevate Design Build, LLC

Elevate Design Build, LLC

1742 Underwood Rd
4.80(
25
)
•Approved Pro

Elevate Design Build, LLC

1742 Underwood Rd
4.80(
25
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
31 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"All the people at Elevate Design and Build were amazing and a pleasure to work with. We doubled the size of our house including tripling the size of the kitchen, knocking out walls to create an open floor plan and added a three car garage with home office over the garage. They even recommended modifications to our original blueprints which were excellent. All their workers friendly and did a first class job. Went totally above and beyond our expectations. One year later we have not had one single problem with any of the work. Total integrity. If any issue came up, the company absorbed the cost - not the customer. Everything they did was done perfectly. We didn't have a single issue or complaint during the entire process. I give them my highest personal recommendation. I would never use anyone else."

Stephen M on August 2024

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"All the people at Elevate Design and Build were amazing and a pleasure to work with. We doubled the size of our house including tripling the size of the kitchen, knocking out walls to create an open floor plan and added a three car garage with home office over the garage. They even recommended modifications to our original blueprints which were excellent. All their workers friendly and did a first class job. Went totally above and beyond our expectations. One year later we have not had one single problem with any of the work. Total integrity. If any issue came up, the company absorbed the cost - not the customer. Everything they did was done perfectly. We didn't have a single issue or complaint during the entire process. I give them my highest personal recommendation. I would never use anyone else."

Stephen M on August 2024

Avatar for D&R Improvements

D&R Improvements

124 Jarman Branch Drive
5.00(
14
)
•Approved Pro

D&R Improvements

124 Jarman Branch Drive
5.00(
14
)
•Approved Pro
Customers say: Quality work
16 years of experience
Free onsite estimate

D & R 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 have hired many contractors over the years, and don't recall any who have been nearly as exceptional in every way as Dave and his team. Both my wife and I cannot recommend D&R more highly."

tim o on March 2024

D & R 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 have hired many contractors over the years, and don't recall any who have been nearly as exceptional in every way as Dave and his team. Both my wife and I cannot recommend D&R more highly."

tim o on March 2024

Avatar for John James Properties

John James Properties

7230 Lee Deforest Dr. Ste 202
4.74(
25
)
•Approved Pro

John James Properties

7230 Lee Deforest Dr. Ste 202
4.74(
25
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
13 local quotes requested

Our company is based on the belief that our customers needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team.

"Contractor delivered what he promised on time. Very satisfied with the result."

John D on April 2023

Our company is based on the belief that our customers needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team.

"Contractor delivered what he promised on time. Very satisfied with the result."

John D on April 2023

Avatar for Design Kitchen and Bath, LLC

Design Kitchen and Bath, LLC

8450 Baltimore National Pike Suite 150
4.83(
6
)
•Approved Pro

Design Kitchen and Bath, LLC

8450 Baltimore National Pike Suite 150
4.83(
6
)
•Approved Pro
51 local quotes requested
9 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Design Kitchen and Bath exceeded our expectations with our master bathroom remodel. My project manager, Atakan, was professional, detail-focused, and brought our vision to life with stunning craftsmanship. They stayed on schedule and within budget, making the entire process seamless. Highly recommend!"

Marie S on January 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Design Kitchen and Bath exceeded our expectations with our master bathroom remodel. My project manager, Atakan, was professional, detail-focused, and brought our vision to life with stunning craftsmanship. They stayed on schedule and within budget, making the entire process seamless. Highly recommend!"

Marie S on January 2025

Avatar for Hammer Home Improvement, LLC

Hammer Home Improvement, LLC

2701 Northpoint Road Unit G
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Hammer Home Improvement, LLC

2701 Northpoint Road Unit G
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
11 local quotes requested
18 years of experience

Hammer Home Improvement, LLC, is the leading choice for your home remodeling needs. From room additions and whole house remodels, to kitchen and bathroom remodels. Your remodel project is an important upgrade to your home, and you need a high quality contractor to perform work to your standards. We welcome the opportunity to talk to you and listen to your needs. We proudly offer you the highest level of customer service and professionalism to ensure your complete satisfaction. Hammer Home Improvement, LLC, takes pride in finishing your job on time and on budget.

Hammer Home Improvement, LLC, is the leading choice for your home remodeling needs. From room additions and whole house remodels, to kitchen and bathroom remodels. Your remodel project is an important upgrade to your home, and you need a high quality contractor to perform work to your standards. We welcome the opportunity to talk to you and listen to your needs. We proudly offer you the highest level of customer service and professionalism to ensure your complete satisfaction. Hammer Home Improvement, LLC, takes pride in finishing your job on time and on budget.

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FAQs for addition to existing structure building service projects in Baltimore, MD

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 Baltimore, MD 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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