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Find Addition to existing structure builders in Germantown

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

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 CHEVY CHASE REMODELING

CHEVY CHASE REMODELING

6900 Wisconsin Ave
4.77(
170
)
•Approved Pro

CHEVY CHASE REMODELING

6900 Wisconsin Ave
4.77(
170
)
•Approved Pro
Customers say: Terrific value
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
108 local quotes requested

26 employees. Cost is determined by the job. Travel charges may apply. Service fee applies. Extra charge for after-hours service. License #: 95598. Additional contact: jennifer depollar. Additional phone #: (240)535-6296. Additional service areas: calvert county & district of columbia. Additional services offered: siding, roofing, windows, kitchens, baths, flooring,painting. We work under the rowan group llc's licensing in Virginia and D.C.

"I wish I could give ten stars. Came home from Christmas to a literal waterfall in my house. Steven and his crew were absolutely the best team I could have asked for. Understanding, communicative, empathetic and on top of all that, the quality of their work is EXCELLENT. My entire first floor was taken down to studs and rebuilt and it's better than it was before the disaster."

Jen K on October 2025

26 employees. Cost is determined by the job. Travel charges may apply. Service fee applies. Extra charge for after-hours service. License #: 95598. Additional contact: jennifer depollar. Additional phone #: (240)535-6296. Additional service areas: calvert county & district of columbia. Additional services offered: siding, roofing, windows, kitchens, baths, flooring,painting. We work under the rowan group llc's licensing in Virginia and D.C.

"I wish I could give ten stars. Came home from Christmas to a literal waterfall in my house. Steven and his crew were absolutely the best team I could have asked for. Understanding, communicative, empathetic and on top of all that, the quality of their work is EXCELLENT. My entire first floor was taken down to studs and rebuilt and it's better than it was before the disaster."

Jen K on October 2025

Avatar for Absolute Building and Construction

Absolute Building and Construction

4.88(
8
)
•Approved Pro

Absolute Building and Construction

4.88(
8
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
70 local quotes requested

Absolute Building and Construction has steadily grown from a small construction company, begun in 2000. We construct and manage projects ranging from minor interior renovations to some of the most complex commercial, public and industrial facilities in our region. Our approach to each project is always cooperative with client and designer satisfaction as the determining factors for success. Our innovative approach to pre-construction services and our self-performed capabilities allow us to deliver solutions that most often exceed our clients expectations. Our reputation is our greatest asset. We know that our reputation is built each and every day by the way we treat our clients, design teams and vendors. At Absolute Building and Construction, our employees are committed to our mission of, Achieving excellence in construction while enhancing the lives of all involved. This means holding ourselves to the Absolute highest ethical and professional standards, always doing what is fair. Call us today for your Remodeling needs! All electrical and plumbing services are subcontracted out to properly licensed companies

"Excellent. The workmanship was superior, and the time it took to finish all renovations was minimal. A, B, & C should be at the top of everyone's list for overall home remodeling."

William B on November 2021

Absolute Building and Construction has steadily grown from a small construction company, begun in 2000. We construct and manage projects ranging from minor interior renovations to some of the most complex commercial, public and industrial facilities in our region. Our approach to each project is always cooperative with client and designer satisfaction as the determining factors for success. Our innovative approach to pre-construction services and our self-performed capabilities allow us to deliver solutions that most often exceed our clients expectations. Our reputation is our greatest asset. We know that our reputation is built each and every day by the way we treat our clients, design teams and vendors. At Absolute Building and Construction, our employees are committed to our mission of, Achieving excellence in construction while enhancing the lives of all involved. This means holding ourselves to the Absolute highest ethical and professional standards, always doing what is fair. Call us today for your Remodeling needs! All electrical and plumbing services are subcontracted out to properly licensed companies

"Excellent. The workmanship was superior, and the time it took to finish all renovations was minimal. A, B, & C should be at the top of everyone's list for overall home remodeling."

William B on November 2021

Avatar for Leizear Carpentry & Construction

Leizear Carpentry & Construction

1340 Greenfield Rd
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Leizear Carpentry & Construction

1340 Greenfield Rd
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
4 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today! Ask about our veteran's discount!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today! Ask about our veteran's discount!

Avatar for MARVEL HOMES LLC

MARVEL HOMES LLC

9221 Laurel Oak Dr
5.00(
39
)
•Approved Pro

MARVEL HOMES LLC

9221 Laurel Oak Dr
5.00(
39
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 local quotes requested

Marvel Homes, LLC, is built on a Foundation of Integrity and Ingenuity. We are dedicated solely to quality home construction, home renovation, and customer satisfaction. Marvel Homes translates your vision and goals for your home into beautiful, comfortable, and well-constructed spaces. We build your dream.

"Fantastic! Devin and his team remodeled three of the four bedrooms in my townhouse in Clarendon: the first about four years ago and the other two bathrooms two years ago. He also built me a new closet in the master bedroom. The entire experience was amazing. The work is top quality - years later it still looks perfect and I have not had any problems - and his team is polite, professional, timely and they left my home spotless when they left. And since the work has been completed, Devin has helped me with little issues for free whenever I needed help. He is truly a talented professional and a stellar person. Can’t recommend highly enough!"

Kathleen G on September 2019

Marvel Homes, LLC, is built on a Foundation of Integrity and Ingenuity. We are dedicated solely to quality home construction, home renovation, and customer satisfaction. Marvel Homes translates your vision and goals for your home into beautiful, comfortable, and well-constructed spaces. We build your dream.

"Fantastic! Devin and his team remodeled three of the four bedrooms in my townhouse in Clarendon: the first about four years ago and the other two bathrooms two years ago. He also built me a new closet in the master bedroom. The entire experience was amazing. The work is top quality - years later it still looks perfect and I have not had any problems - and his team is polite, professional, timely and they left my home spotless when they left. And since the work has been completed, Devin has helped me with little issues for free whenever I needed help. He is truly a talented professional and a stellar person. Can’t recommend highly enough!"

Kathleen G on September 2019

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
30 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 ESM CONSTRUCTION LLC

ESM CONSTRUCTION LLC

1001 Rockville Pike 1532
5.00(
9
)
•Approved Pro

ESM CONSTRUCTION LLC

1001 Rockville Pike 1532
5.00(
9
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
68 local quotes requested

We have the experience and dedication to get the job done right! Specializing in remodeling services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"After consulting with several companies, I decided to hire ESM Construction LLC for the remodeling of my one-bedroom condo. Their pricing was competitive, and Edgar displayed a wealth of knowledge. He was also exceptionally responsive, addressing all my questions promptly. The crew arrived on schedule, and they were both friendly and professional. They completely transformed the condo, installing brand new flooring, ceilings, paint, a bathroom, kitchen, and appliances. I never felt rushed, and every aspect of the project was completed in a timely manner. Edgar and his team were attentive and patient, never once saying, "No, we won't do that!" Finding honest and reliable contractors can be challenging these days. We interviewed several contractors with five-star ratings, but many seemed overpriced, like quoting $5K for cabinets that only cost $3K depending on kitchen size. Some of the five-star contractors even came off as somewhat arrogant due to their reviews, which raised concerns about potential issues. If you spot even one negative review, take it seriously; we’ve paid a steep price for ignoring such warnings in the past. Edgar's team even rectified mistakes made by previous contractors. From the moment we spoke with Edgar, we recognized his down-to-earth demeanor and extensive expertise in his field. We are thoroughly satisfied with our decision to go with ESM Construction LLC and wholeheartedly recommend this company."

Delia Z on February 2025

We have the experience and dedication to get the job done right! Specializing in remodeling services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"After consulting with several companies, I decided to hire ESM Construction LLC for the remodeling of my one-bedroom condo. Their pricing was competitive, and Edgar displayed a wealth of knowledge. He was also exceptionally responsive, addressing all my questions promptly. The crew arrived on schedule, and they were both friendly and professional. They completely transformed the condo, installing brand new flooring, ceilings, paint, a bathroom, kitchen, and appliances. I never felt rushed, and every aspect of the project was completed in a timely manner. Edgar and his team were attentive and patient, never once saying, "No, we won't do that!" Finding honest and reliable contractors can be challenging these days. We interviewed several contractors with five-star ratings, but many seemed overpriced, like quoting $5K for cabinets that only cost $3K depending on kitchen size. Some of the five-star contractors even came off as somewhat arrogant due to their reviews, which raised concerns about potential issues. If you spot even one negative review, take it seriously; we’ve paid a steep price for ignoring such warnings in the past. Edgar's team even rectified mistakes made by previous contractors. From the moment we spoke with Edgar, we recognized his down-to-earth demeanor and extensive expertise in his field. We are thoroughly satisfied with our decision to go with ESM Construction LLC and wholeheartedly recommend this company."

Delia Z on February 2025

Avatar for Abode Construction, LLC

Abode Construction, LLC

19570 Ridge Heights Drive
4.65(
10
)
•Approved Pro

Abode Construction, LLC

19570 Ridge Heights Drive
4.65(
10
)
•Approved Pro
Customers say: True professional
21 local quotes requested
23 years of experience

We are a veteran owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. 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! FREE ESTIMATES! ASK US ABOUT PRICE MATCHING!

"When I started down the path of remodeling my 2 outdated bathrooms, I had no idea what to expect. My two main criteria were fair price and good workmanship. Abode Construction delivered this and more! Scott provides top notch work, respectful and capable crew, quality customer care, and advice, all for a competitive price. His team, from the estimate to changes for the project through completion of the bathrooms, make the client feel valued. Did everything go as planned? Absolutely not. Some events were unavoidable (e.g. supply delays) but some could have been avoided. However, Scott made sure that we were whole at the end of the day and made good on his 100% guaranteed satisfaction. I now have two updated, modern bathrooms that we all LOVE! I will be using Abode Construction for future projects and highly recommend them to others."

Cathy H on March 2024

We are a veteran owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. 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! FREE ESTIMATES! ASK US ABOUT PRICE MATCHING!

"When I started down the path of remodeling my 2 outdated bathrooms, I had no idea what to expect. My two main criteria were fair price and good workmanship. Abode Construction delivered this and more! Scott provides top notch work, respectful and capable crew, quality customer care, and advice, all for a competitive price. His team, from the estimate to changes for the project through completion of the bathrooms, make the client feel valued. Did everything go as planned? Absolutely not. Some events were unavoidable (e.g. supply delays) but some could have been avoided. However, Scott made sure that we were whole at the end of the day and made good on his 100% guaranteed satisfaction. I now have two updated, modern bathrooms that we all LOVE! I will be using Abode Construction for future projects and highly recommend them to others."

Cathy H on March 2024

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FAQs for addition to existing structure building service projects in Germantown, 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 Germantown, 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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