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Addition to existing structure builders in Harwood

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

Misha's Home Improvement, Inc.

1257 Baltimore Annapolis Boulevard
4.67(
24
)
•Approved Pro

Misha's Home Improvement, Inc.

1257 Baltimore Annapolis Boulevard
4.67(
24
)
•Approved Pro
Customers say: Terrific value
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
34 years of experience

Misha's Home Improvement, Inc., has been in business for more than 16 years and all of our employees are skilled European craftsman. Call us for your entire wood and ceramic tile flooring needs!

"Wonderful "

Catherine L on July 2025

Misha's Home Improvement, Inc., has been in business for more than 16 years and all of our employees are skilled European craftsman. Call us for your entire wood and ceramic tile flooring needs!

"Wonderful "

Catherine L on July 2025

Avatar for W. R. Flater General Contractor, LLC

W. R. Flater General Contractor, LLC

375 Harwin Drive
4.96(
14
)
•Approved Pro

W. R. Flater General Contractor, LLC

375 Harwin Drive
4.96(
14
)
•Approved Pro
Customers say: Quality work
27 years of experience
Free onsite estimate

W.R. Flater General Contractor, LLC is a Severna Park based company that serves Anne Arundel county and surrounding areas. We are a local company and have been in business since 1998. At W.R. Flater General Contractor, we strive for customer satisfaction. Our company's foundation has been built on quality workmanship, dependability and trust. We believe in a quality job performed right the first time.

"We're extremely happy with their work quality; they're reasonably priced and they are all very personable and easy to work with. We have very high expectations regarding how we expect a job to be done and what the end result should look like and their results have been perfect. Our projects included our dock, deck, siding and our entry door, so far. If their quality continues, and we have every expectation that it will, we have multiple other renovation projects to do with them. They are transforming our home. Rick's, Jason's, Gerry's & Nick's honesty & integrity in the way they complete their work has been refreshing and we have enjoyed working with them. Just very pleased!"

Marie B on September 2020

W.R. Flater General Contractor, LLC is a Severna Park based company that serves Anne Arundel county and surrounding areas. We are a local company and have been in business since 1998. At W.R. Flater General Contractor, we strive for customer satisfaction. Our company's foundation has been built on quality workmanship, dependability and trust. We believe in a quality job performed right the first time.

"We're extremely happy with their work quality; they're reasonably priced and they are all very personable and easy to work with. We have very high expectations regarding how we expect a job to be done and what the end result should look like and their results have been perfect. Our projects included our dock, deck, siding and our entry door, so far. If their quality continues, and we have every expectation that it will, we have multiple other renovation projects to do with them. They are transforming our home. Rick's, Jason's, Gerry's & Nick's honesty & integrity in the way they complete their work has been refreshing and we have enjoyed working with them. Just very pleased!"

Marie B on September 2020

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 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
57 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 KF Remodeling LLC

KF Remodeling LLC

417 Church St
5.00(
1
)
•Approved Pro

KF Remodeling LLC

417 Church St
5.00(
1
)
•Approved Pro
2 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.

"Kelvin Funes, owner of KF Remodeling is a very experienced contractor in all aspects of home building and remodeling. They have done four jobs for me this year from Feb to July of 2025. Jobs included; shower/bathroom, plumbing, electrical, drywall, and painting. Some were major plumbing and installation of wired smoke detectors. Not easy but Kelvin always tells me his job is to solve problems. And he does. Twice I needed to call him back to handle small over looked items and he returned promptly to handle them. Kelvin's knowledge, experience, and advice contributed greatly to the success of my projects, I am impressed and well pleased. Thank you KF Remodeling. "

Mark K on September 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.

"Kelvin Funes, owner of KF Remodeling is a very experienced contractor in all aspects of home building and remodeling. They have done four jobs for me this year from Feb to July of 2025. Jobs included; shower/bathroom, plumbing, electrical, drywall, and painting. Some were major plumbing and installation of wired smoke detectors. Not easy but Kelvin always tells me his job is to solve problems. And he does. Twice I needed to call him back to handle small over looked items and he returned promptly to handle them. Kelvin's knowledge, experience, and advice contributed greatly to the success of my projects, I am impressed and well pleased. Thank you KF Remodeling. "

Mark K on September 2025

Avatar for The North Star Companies, LLC

The North Star Companies, LLC

P.O. Box 495
4.98(
47
)
•Approved Pro

The North Star Companies, LLC

P.O. Box 495
4.98(
47
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

The North Star Companies, LLC, is the premier contracting company in MD. We pride ourselves on delivering a quality service, at an affordable price, with the customer's best interests at heart.

"We have used The North Star Companies for several jobs in the past, with the most recent being the largest. We hired them do a complete renovation of our home in Severn. The job grew larger as demo began and turned into a job requiring the rebuild of exterior walls, demo of concrete slabs - basically the house had to be rebuilt from the ground up. All new plumbing, electric, framing, windows, siding, roof, etc. I have known Chris for 20+ years and was confident that our forever home would be solid and done right. We had a few hiccups throughout the process - as this was done during Covid, so there were supply issues, delays and so forth, but Chris and his guys did an amazing job. We couldn't be happier and are continuously getting compliments on our beautiful home. Chris has been and will continue to be our go-to for any construction needs for us and our family and friends."

toni l on December 2023

The North Star Companies, LLC, is the premier contracting company in MD. We pride ourselves on delivering a quality service, at an affordable price, with the customer's best interests at heart.

"We have used The North Star Companies for several jobs in the past, with the most recent being the largest. We hired them do a complete renovation of our home in Severn. The job grew larger as demo began and turned into a job requiring the rebuild of exterior walls, demo of concrete slabs - basically the house had to be rebuilt from the ground up. All new plumbing, electric, framing, windows, siding, roof, etc. I have known Chris for 20+ years and was confident that our forever home would be solid and done right. We had a few hiccups throughout the process - as this was done during Covid, so there were supply issues, delays and so forth, but Chris and his guys did an amazing job. We couldn't be happier and are continuously getting compliments on our beautiful home. Chris has been and will continue to be our go-to for any construction needs for us and our family and friends."

toni l on December 2023

Avatar for BasementRemodeling.com

BasementRemodeling.com

1680 E Gude Dr
4.75(
256
)
•Approved Pro

BasementRemodeling.com

1680 E Gude Dr
4.75(
256
)
•Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
151 local quotes requested

BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.

"To the entire team, please allow me to express my gratitude, appreciation and extreme satisfaction with your high quality work. We couldn’t be more pleased with the outcomes. The team was kind, professional and supportive throughout the entire process. We encountered a challenge with water intrusion from our basement door, and the team was flexible to accommodate troubleshooting with our basement waterproofing team, which allowed us to define the root cause and work to find a solution. The brief delay was unavoidable and the team repaired the area that required deconstruction quickly with high quality. They were also collaborative with our basement waterproofing vendor to ensure we maintained proper water protection. We absolutely recommend the Basement Remodeling team to anyone looking to create a beautiful basement space in their home. From start to finish we felt valued and were treated extraordinarily well."

Kelly L on June 2025

BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.

"To the entire team, please allow me to express my gratitude, appreciation and extreme satisfaction with your high quality work. We couldn’t be more pleased with the outcomes. The team was kind, professional and supportive throughout the entire process. We encountered a challenge with water intrusion from our basement door, and the team was flexible to accommodate troubleshooting with our basement waterproofing team, which allowed us to define the root cause and work to find a solution. The brief delay was unavoidable and the team repaired the area that required deconstruction quickly with high quality. They were also collaborative with our basement waterproofing vendor to ensure we maintained proper water protection. We absolutely recommend the Basement Remodeling team to anyone looking to create a beautiful basement space in their home. From start to finish we felt valued and were treated extraordinarily well."

Kelly L on June 2025

Avatar for Signature Contracting LLC

Signature Contracting LLC

545 PLUM POINT RD
4.76(
78
)
•Approved Pro

Signature Contracting LLC

545 PLUM POINT RD
4.76(
78
)
•Approved Pro
Customers say: Terrific value
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
94 local quotes requested

Family Owned and Operated since 2000, we are your Signature Remodeling Contractor in Southern Maryland! Servicing Calvert, St. Mary's, Charles, PG and Anne Arundel Counties. We specialize in Kitchen and Bath remodels of all sizes as well as finishing basements , however we do general home improvement needs you may have. Our work is second to none and we never use sub-contractors. We personally work with you every step of the way! We back our work with a satisfaction guarantee and we won't stop until you're satisfied with the final product! We are licensed, bonded and insured. Give us a call at 410-449-9851 or send us an email Signaturecontractingllc@gmail.com

"JJ and his crew installed new flooring throughout our home. It was not without it's challenges due to the age and condition of the house and the spiral staircase but they made it happen on budget. The end result is beautiful."

Dave H on June 2025

Family Owned and Operated since 2000, we are your Signature Remodeling Contractor in Southern Maryland! Servicing Calvert, St. Mary's, Charles, PG and Anne Arundel Counties. We specialize in Kitchen and Bath remodels of all sizes as well as finishing basements , however we do general home improvement needs you may have. Our work is second to none and we never use sub-contractors. We personally work with you every step of the way! We back our work with a satisfaction guarantee and we won't stop until you're satisfied with the final product! We are licensed, bonded and insured. Give us a call at 410-449-9851 or send us an email Signaturecontractingllc@gmail.com

"JJ and his crew installed new flooring throughout our home. It was not without it's challenges due to the age and condition of the house and the spiral staircase but they made it happen on budget. The end result is beautiful."

Dave H on June 2025

Avatar for Ballard Enterprises - Lawn, Landscaping, Tree Services

Ballard Enterprises - Lawn, Landscaping, Tree Services

1371 Saint Stephens Church Rd
4.51(
292
)
•Approved Pro

Ballard Enterprises - Lawn, Landscaping, Tree Services

1371 Saint Stephens Church Rd
4.51(
292
)
•Approved Pro
Customers say: Quality work
1200 local quotes requested
22 years of experience

We are a full service Lawn Care, Landscaping, and Tree Service. If it's in your yard, our professional staff of qualified and certified technicians are here to help. We offer a full range of services, including: - Lawn Maintenance - Patios and Walkways - Fire Pits and Water Features - Outdoor Kitchens and Pool Surrounds - Paver Driveways - Tree Removal - Tree Pruning - Stump Grinding - Tree health and Risk Assessment - All other facets of Lawn Care, Landscaping, and Tree Services

"Project Manager came to site. Reviewed tasks and provided estimates"

Tochi I on January 2025

We are a full service Lawn Care, Landscaping, and Tree Service. If it's in your yard, our professional staff of qualified and certified technicians are here to help. We offer a full range of services, including: - Lawn Maintenance - Patios and Walkways - Fire Pits and Water Features - Outdoor Kitchens and Pool Surrounds - Paver Driveways - Tree Removal - Tree Pruning - Stump Grinding - Tree health and Risk Assessment - All other facets of Lawn Care, Landscaping, and Tree Services

"Project Manager came to site. Reviewed tasks and provided estimates"

Tochi I on January 2025

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