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Find Addition to existing structure builders in Mount Rainier

Metropolitan Energy Savers Company

12172 Hidden Brook Terrace
4.77(
16
)
Approved Pro

Metropolitan Energy Savers Company

12172 Hidden Brook Terrace
4.77(
16
)
Approved Pro
Customers say: Quick response
26 years of experience
Free onsite estimate

If you�re considering ways to improve the beauty, functionality, and energy efficiency of your home, you�ve come to the right place. Metropolitan Energy Savers Company has been helping homeowners to make the most of their most important investment. We work with your vision and style to help you create a place that�s all your own. Metropolitan Energy Savers Company has been providing quality remodeling service in the Gaithersburg metro area and Montgomery County since 1999. First- and second-floor additions are our specialty. Please check out our ratings from previous satisfied customers. Metropolitan Energy Savers Company also performs home remodeling, including new kitchens, decks, bathrooms, roofs, windows, siding, basements, and more. We believe that great homes deserve great service. Our efficient and hard-working remodeling and add-ons crews believe in delivering the most cost-effective consultation available. For further information call us today!

"Great work"

Bob B on April 2019

If you�re considering ways to improve the beauty, functionality, and energy efficiency of your home, you�ve come to the right place. Metropolitan Energy Savers Company has been helping homeowners to make the most of their most important investment. We work with your vision and style to help you create a place that�s all your own. Metropolitan Energy Savers Company has been providing quality remodeling service in the Gaithersburg metro area and Montgomery County since 1999. First- and second-floor additions are our specialty. Please check out our ratings from previous satisfied customers. Metropolitan Energy Savers Company also performs home remodeling, including new kitchens, decks, bathrooms, roofs, windows, siding, basements, and more. We believe that great homes deserve great service. Our efficient and hard-working remodeling and add-ons crews believe in delivering the most cost-effective consultation available. For further information call us today!

"Great work"

Bob B on April 2019


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


Krause Design & Construction, Inc.

2513 McComas Avenue
4.94(
3
)
Approved Pro

Krause Design & Construction, Inc.

2513 McComas Avenue
4.94(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 years of experience

Krause Design & Construction, Inc. is one of the area's elite high-end home improvement experts, currently specializing in an array of expertise for all of your addition needs. We are a family owned and operated business with decades worth of experience in the industry and are considered by many to be masters within our field. We can either provide the concept for your project, or breathe life into your own vision, thereby creating a true marveled work of beauty. Regardless of the size and scope of your project, we will employ our unique skill set to see your project through fruition. We will treat your property with the same personal degree of care and consideration that we utilize when working on our own properties. We have satisfied repeat customers that routinely call us for new projects. We are always looking for new clients. Feel free to contact us to schedule an initial consultation, we are more than happy to meet with you and discuss your project today!

"You will not be disappointed by Krause Design & Construction. This is a phenomenal company run by an honest, talented, skilled and experienced businessman. No horror stories, no regrets. Krause built what we asked for and stayed on budget and on schedule. Just hire Krause and you will not be disappointed!"

Vince B on May 2016

Krause Design & Construction, Inc. is one of the area's elite high-end home improvement experts, currently specializing in an array of expertise for all of your addition needs. We are a family owned and operated business with decades worth of experience in the industry and are considered by many to be masters within our field. We can either provide the concept for your project, or breathe life into your own vision, thereby creating a true marveled work of beauty. Regardless of the size and scope of your project, we will employ our unique skill set to see your project through fruition. We will treat your property with the same personal degree of care and consideration that we utilize when working on our own properties. We have satisfied repeat customers that routinely call us for new projects. We are always looking for new clients. Feel free to contact us to schedule an initial consultation, we are more than happy to meet with you and discuss your project today!

"You will not be disappointed by Krause Design & Construction. This is a phenomenal company run by an honest, talented, skilled and experienced businessman. No horror stories, no regrets. Krause built what we asked for and stayed on budget and on schedule. Just hire Krause and you will not be disappointed!"

Vince B on May 2016


Avatar for EnviroBuild Construction

EnviroBuild Construction

2257 Lewis Ave
5.00(
2
)
Approved Pro

EnviroBuild Construction

2257 Lewis Ave
5.00(
2
)
Approved Pro
5 years of experience
Free onsite estimate

EnviroBuild Construction is a premier construction company dedicated to delivering exceptional residential building services. We specialize in custom home building, where we work closely with clients to transform their dream homes into reality. Our expertise extends to comprehensive remodeling projects, from kitchen and bathroom renovations to whole-house transformations. We also excel in adding living space and functionality to existing homes through our skilled addition services. At EnviroBuild, we prioritize sustainable building practices, incorporating eco-friendly materials and energy-efficient solutions whenever possible. We are committed to exceeding client expectations with meticulous attention to detail, superior craftsmanship, and a focus on building lasting relationships.

"I will begin from the end-HIRE THEM! We have been using EnviroBuild’s services for the last 10 years, since purchasing our house. They serviced us in 4 different projects, in which the last one was after a tree fell on our house. They came and start assisting us even prior to the insurance providing approval by covering the roof and getting someone to clear the large tree debris. They negotiated with the insurance and made sure that we will receive ALL we need to be done to include permits and inspections. Once the work started it was quick, efficient, professional and with absolutely amazing results. We will definitely recommend them to anyone who is interested in a work to be done in their home."

Dvir B on February 2025

EnviroBuild Construction is a premier construction company dedicated to delivering exceptional residential building services. We specialize in custom home building, where we work closely with clients to transform their dream homes into reality. Our expertise extends to comprehensive remodeling projects, from kitchen and bathroom renovations to whole-house transformations. We also excel in adding living space and functionality to existing homes through our skilled addition services. At EnviroBuild, we prioritize sustainable building practices, incorporating eco-friendly materials and energy-efficient solutions whenever possible. We are committed to exceeding client expectations with meticulous attention to detail, superior craftsmanship, and a focus on building lasting relationships.

"I will begin from the end-HIRE THEM! We have been using EnviroBuild’s services for the last 10 years, since purchasing our house. They serviced us in 4 different projects, in which the last one was after a tree fell on our house. They came and start assisting us even prior to the insurance providing approval by covering the roof and getting someone to clear the large tree debris. They negotiated with the insurance and made sure that we will receive ALL we need to be done to include permits and inspections. Once the work started it was quick, efficient, professional and with absolutely amazing results. We will definitely recommend them to anyone who is interested in a work to be done in their home."

Dvir B on February 2025


Val-U-Homes, LLC

2 Stoneyhurst Court
5.00(
20
)
Approved Pro

Val-U-Homes, LLC

2 Stoneyhurst Court
5.00(
20
)
Approved Pro
Customers say: Terrific value
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
39 local quotes requested

Val-U-Homes, LLC, specializes in home Additions and remodeling in Montgomery County and the surrounding areas. We take pride in providing new home quality on all of our projects

"I hired them for home renovation, and they did a great job. They were very respectful and understanding. When they were done everything turned out great!"

Mistere F on July 2024

Val-U-Homes, LLC, specializes in home Additions and remodeling in Montgomery County and the surrounding areas. We take pride in providing new home quality on all of our projects

"I hired them for home renovation, and they did a great job. They were very respectful and understanding. When they were done everything turned out great!"

Mistere F on July 2024


Avatar for East Coast Concrete LLC

East Coast Concrete LLC

7310 Ritchie Highway, Suite 200
3.50(
11
)
Approved Pro

East Coast Concrete LLC

7310 Ritchie Highway, Suite 200
3.50(
11
)
Approved Pro
1 years of experience
Free onsite estimate

East Coast Concrete LLC, proudly servicing Pasadena, MD and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Very fast service awesome material selection clean work and amazing price and Jennifer was a pleasure to work with schedule all our work."

Jake M on January 2025

East Coast Concrete LLC, proudly servicing Pasadena, MD and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Very fast service awesome material selection clean work and amazing price and Jennifer was a pleasure to work with schedule all our work."

Jake M on January 2025


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
50 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 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 Best Homes

Best Homes

233 Morrisons Road
4.64(
182
)
Approved Pro

Best Homes

233 Morrisons Road
4.64(
182
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
96 local quotes requested

Here at Best Homes, 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. Please call today for a quote and thank you for doing so.

"Overall, our experience was positive. The pricing was very competitive, and the quality of the products met our expectations. Communication, however, could have been more consistent. Responses to our inquiries were sometimes delayed, and we occasionally received messages late at night. Additionally, working with multiple contacts made the process feel a bit disorganized at times. That said, when communication did happen, they were helpful and responsive. With a bit more coordination, this would have been a near perfect experience."

Andrew S on June 2025

Here at Best Homes, 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. Please call today for a quote and thank you for doing so.

"Overall, our experience was positive. The pricing was very competitive, and the quality of the products met our expectations. Communication, however, could have been more consistent. Responses to our inquiries were sometimes delayed, and we occasionally received messages late at night. Additionally, working with multiple contacts made the process feel a bit disorganized at times. That said, when communication did happen, they were helpful and responsive. With a bit more coordination, this would have been a near perfect experience."

Andrew S on June 2025


Avatar for Managed Renovations

Managed Renovations

3302 Camalier Drive
5.00(
16
)
Approved Pro

Managed Renovations

3302 Camalier Drive
5.00(
16
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

Managed Renovations engages with our clients using a couple different business models depending on their needs, preferences, and level of desired participation in some of the required tasks involved with most projects. Some of our clients choose to use our unique construction management services business model to build their project that is distinctive from the typical fixed-price general contractor (GC) approach to construction. For those clients we provide fee-based construction management consulting services to schedule, manage (on-site), and review all the work that our clients choose to have us handle for the project. We connect and contract our clients with our seasoned collection of licensed and insured tradesmen and subcontractors (and our own in-house carpenters) that will provide each of their fixed price costs. Alternatively, some of our clients prefer to have their project built using a typical fixed-price general contractor (GC) approach to construction.

"We recently had our kitchen remodeled by Managed Renovations. The experienceâ from start to finishâ was nothing short of amazing and the finished kitchen is spectacular, exceeding our expectations. The Managed Renovations team, Michael and Natalie, and their subcontractorsâ carpenters, electricians, plumbers, and floor installersâ displayed a level of professionalism, craftsmanship, and attention to detail that was extraordinary. They turned a small, poorly designed 1970s kitchen into a large, beautiful, functional space that is now the heart of our home. Although the project involved demolishing walls and removing the existing cabinets, appliances, and flooring (and replacing them with new cabinets, appliances, and flooring), they accomplished this with minimal disruption to our lives, always leaving our home and the work area clean at the end of the day. Managed Renovations communicated with us throughout, (we could also track every aspect of the project online), making sure we were comfortable with every decision. Their recommendations, whether about design elements or vendors, were always â spot on.â There were no surprises. They delivered what they promised when it was promised, completing our kitchen on time and without any unanticipated costs. Managed Renovations' dedication to excellence and customer satisfaction is truly unmatched. If youâ re looking for a general contractor who will deliver outstanding results, look no further than Managed Renovations."

David F on July 2024

Managed Renovations engages with our clients using a couple different business models depending on their needs, preferences, and level of desired participation in some of the required tasks involved with most projects. Some of our clients choose to use our unique construction management services business model to build their project that is distinctive from the typical fixed-price general contractor (GC) approach to construction. For those clients we provide fee-based construction management consulting services to schedule, manage (on-site), and review all the work that our clients choose to have us handle for the project. We connect and contract our clients with our seasoned collection of licensed and insured tradesmen and subcontractors (and our own in-house carpenters) that will provide each of their fixed price costs. Alternatively, some of our clients prefer to have their project built using a typical fixed-price general contractor (GC) approach to construction.

"We recently had our kitchen remodeled by Managed Renovations. The experienceâ from start to finishâ was nothing short of amazing and the finished kitchen is spectacular, exceeding our expectations. The Managed Renovations team, Michael and Natalie, and their subcontractorsâ carpenters, electricians, plumbers, and floor installersâ displayed a level of professionalism, craftsmanship, and attention to detail that was extraordinary. They turned a small, poorly designed 1970s kitchen into a large, beautiful, functional space that is now the heart of our home. Although the project involved demolishing walls and removing the existing cabinets, appliances, and flooring (and replacing them with new cabinets, appliances, and flooring), they accomplished this with minimal disruption to our lives, always leaving our home and the work area clean at the end of the day. Managed Renovations communicated with us throughout, (we could also track every aspect of the project online), making sure we were comfortable with every decision. Their recommendations, whether about design elements or vendors, were always â spot on.â There were no surprises. They delivered what they promised when it was promised, completing our kitchen on time and without any unanticipated costs. Managed Renovations' dedication to excellence and customer satisfaction is truly unmatched. If youâ re looking for a general contractor who will deliver outstanding results, look no further than Managed Renovations."

David F on July 2024

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

  • 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.