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Find Addition to existing structure builders in Lanham

Avatar for GaaJ

GaaJ

5.00(
2
)
Approved Pro

GaaJ

5.00(
2
)
Approved Pro
Customers say: Quick response
20 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.

4.94(
3
)
Approved Pro

Krause Design & Construction, Inc.

4.94(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 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 Elevate Design Build, LLC

Elevate Design Build, LLC

4.80(
25
)
Approved Pro

Elevate Design Build, LLC

4.80(
25
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
32 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 River View

River View

4.64(
14
)
Approved Pro

River View

4.64(
14
)
Approved Pro
Customers say: Quality work
25 local quotes requested
2 years of experience

At River View Construction, we pride ourselves on our exceptional renovations, which are characterized by a comprehensive range of services, a skilled team, and personalized solutions tailored to your unique needs. We are dedicated to providing quality assurance, proactive communication, and meticulous attention to detail, all while ensuring that your project is completed on time. Driven by our commitment to customer satisfaction, we invite you to let us turn your vision into reality. Request a quote today and experience the unmatched River View difference!

"We write this review as a sigh of relief now that our renovation project with River View is finally complete. The quality of the final work is excellent, and the construction crew, architect, and county inspector were all great to work with. The original crew we worked with, led by Edwin, were so hardworking, friendly, thorough, and fast. That's what really pushed us from 2 to 3 stars. However, the process getting here was frustrating and unnecessarily chaotic. Timeline & Communication Issues: Initial promise: We were clear that the renovation had to allow us to live in our home during construction and be completed before Christmas. Early communication: Our original project manager, Cris, was personable, and early communication seemed fine, if a bit informal and sometimes inappropriately personal. Major miscommunication: Near the holidays, we discovered that the plans submitted included cutting into the roof — something we explicitly said we didn’t want. This contradicted verbal assurances and caused major last-minute changes. Project Management Failures: Poor planning and oversight: Cris and the architect’s plan didn’t align with the construction work. We had to get involved directly with the county to fix errors. Paperwork errors: Incorrect submissions to the county added delays and confusion, which we had to monitor ourselves. Last-minute scramble: We were cleaning up dust on Christmas Eve due to these planning failures. Personnel Turnover & Lack of Handoff: Cris leaves the company: No proper handover to James, the new PM, who was unfamiliar with our project. Crew replaced: The original crew, who were great, were gone; new crew had no context or direction. James leaves: Another handoff with no context — the third PM had no idea about our project or its outstanding items. Escalation mishandled: When we raised our concerns with Kyle, the CEO, the response felt dismissive, with no accountability for the previous missteps. In summary, it's a beautiful end result... but we’re glad it’s over. The process left us frustrated, confused, and frankly, exhausted."

Brian M on April 2025

At River View Construction, we pride ourselves on our exceptional renovations, which are characterized by a comprehensive range of services, a skilled team, and personalized solutions tailored to your unique needs. We are dedicated to providing quality assurance, proactive communication, and meticulous attention to detail, all while ensuring that your project is completed on time. Driven by our commitment to customer satisfaction, we invite you to let us turn your vision into reality. Request a quote today and experience the unmatched River View difference!

"We write this review as a sigh of relief now that our renovation project with River View is finally complete. The quality of the final work is excellent, and the construction crew, architect, and county inspector were all great to work with. The original crew we worked with, led by Edwin, were so hardworking, friendly, thorough, and fast. That's what really pushed us from 2 to 3 stars. However, the process getting here was frustrating and unnecessarily chaotic. Timeline & Communication Issues: Initial promise: We were clear that the renovation had to allow us to live in our home during construction and be completed before Christmas. Early communication: Our original project manager, Cris, was personable, and early communication seemed fine, if a bit informal and sometimes inappropriately personal. Major miscommunication: Near the holidays, we discovered that the plans submitted included cutting into the roof — something we explicitly said we didn’t want. This contradicted verbal assurances and caused major last-minute changes. Project Management Failures: Poor planning and oversight: Cris and the architect’s plan didn’t align with the construction work. We had to get involved directly with the county to fix errors. Paperwork errors: Incorrect submissions to the county added delays and confusion, which we had to monitor ourselves. Last-minute scramble: We were cleaning up dust on Christmas Eve due to these planning failures. Personnel Turnover & Lack of Handoff: Cris leaves the company: No proper handover to James, the new PM, who was unfamiliar with our project. Crew replaced: The original crew, who were great, were gone; new crew had no context or direction. James leaves: Another handoff with no context — the third PM had no idea about our project or its outstanding items. Escalation mishandled: When we raised our concerns with Kyle, the CEO, the response felt dismissive, with no accountability for the previous missteps. In summary, it's a beautiful end result... but we’re glad it’s over. The process left us frustrated, confused, and frankly, exhausted."

Brian M on April 2025


Val-U-Homes, LLC

5.00(
20
)
Approved Pro

Val-U-Homes, LLC

5.00(
20
)
Approved Pro
Customers say: Terrific value
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
24 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 Diaz Painting & Renovations LLC

Diaz Painting & Renovations LLC

4.93(
111
)
Approved Pro

Diaz Painting & Renovations LLC

4.93(
111
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
17 local quotes requested

We are 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 painting services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"This was our second time using Diaz for our painting and home renovations. Once again he and his team did an amazing job. For this job, we had Diaz paint our hallway and master, redo our stairs and stair railing, re-finish and stain the hardwood floors, remove old baseboard heaters, and do a complete renovation of our upstairs bathroom (new paint, new floors, new vanity, new toilet, new lighting, new exhaust fan, etc.). He also helped haul out old furniture, removed an old (non-functional) oil gas tank from the basement, and replaced a broken storm door. One of the great things about working with Diaz is that the answer is always yes. His team is more than just painters - he has skilled craftsmen, workers with expertise in plumbing and electric, and everything else. There is no need to deal with anyone else. If you need something done in (or around) your house Diaz either can do it or has a guy. After contacting Diaz, he came right out for a free estimate. He listened carefully to what we wanted but also made a number of important suggestions to improve the results. Each day his team was hard at work - they were trustworthy and courteous, and cleaned up perfectly each day. Diaz goes the extra mile to make things convenient - including hauling away trash/junk, recommending a local showroom, and picking up materials that we had ordered for the job. As with any major project, there were a few bumps in the road. But Diaz worked through the curveballs with good communication. They finished on-time and on budget, and the results were perfect. If you’re looking for versatility, reliability, attention to detail, and overall excellence, then Diaz is your man ."

Jared A on November 2024

We are 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 painting services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"This was our second time using Diaz for our painting and home renovations. Once again he and his team did an amazing job. For this job, we had Diaz paint our hallway and master, redo our stairs and stair railing, re-finish and stain the hardwood floors, remove old baseboard heaters, and do a complete renovation of our upstairs bathroom (new paint, new floors, new vanity, new toilet, new lighting, new exhaust fan, etc.). He also helped haul out old furniture, removed an old (non-functional) oil gas tank from the basement, and replaced a broken storm door. One of the great things about working with Diaz is that the answer is always yes. His team is more than just painters - he has skilled craftsmen, workers with expertise in plumbing and electric, and everything else. There is no need to deal with anyone else. If you need something done in (or around) your house Diaz either can do it or has a guy. After contacting Diaz, he came right out for a free estimate. He listened carefully to what we wanted but also made a number of important suggestions to improve the results. Each day his team was hard at work - they were trustworthy and courteous, and cleaned up perfectly each day. Diaz goes the extra mile to make things convenient - including hauling away trash/junk, recommending a local showroom, and picking up materials that we had ordered for the job. As with any major project, there were a few bumps in the road. But Diaz worked through the curveballs with good communication. They finished on-time and on budget, and the results were perfect. If you’re looking for versatility, reliability, attention to detail, and overall excellence, then Diaz is your man ."

Jared A on November 2024


Misha's Home Improvement, Inc.

4.67(
24
)
Approved Pro

Misha's Home Improvement, Inc.

4.67(
24
)
Approved Pro
Customers say: Terrific value
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
35 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 Omar's General Contracting

Omar's General Contracting

4.87(
137
)
Approved Pro

Omar's General Contracting

4.87(
137
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
38 years of experience

Family own business with 25 + years of experience, our goal is 100% customer satisfaction. Is a trusted company for the best remodeling and handyman services for home. Open since 1988, we have been providing quality general contractor work at affordable prices. Our company is led by experienced professional experienced. We have earned a reputation for being efficient craftsmen who are knowledgeable in all areas of construction and renovations.

"Omar and his team did an outstanding job painting my home. They were consistently professional and courteous, always arriving on time and communicating clearly throughout the project. The work was completed efficiently and with great attention to detail, leaving everything clean and beautifully finished. On top of that, their pricing was fair and transparent. I highly recomment Omar General Contracting for anyone looking for quality painting services. "

Hector D on November 2025

Family own business with 25 + years of experience, our goal is 100% customer satisfaction. Is a trusted company for the best remodeling and handyman services for home. Open since 1988, we have been providing quality general contractor work at affordable prices. Our company is led by experienced professional experienced. We have earned a reputation for being efficient craftsmen who are knowledgeable in all areas of construction and renovations.

"Omar and his team did an outstanding job painting my home. They were consistently professional and courteous, always arriving on time and communicating clearly throughout the project. The work was completed efficiently and with great attention to detail, leaving everything clean and beautifully finished. On top of that, their pricing was fair and transparent. I highly recomment Omar General Contracting for anyone looking for quality painting services. "

Hector D on November 2025


Avatar for Solid Foundation Construction LLC

Solid Foundation Construction LLC

5.00(
5
)
Approved Pro

Solid Foundation Construction LLC

5.00(
5
)
Approved Pro
Super Service Award
61 local quotes requested
32 years of experience

Solid Foundation Construction is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you.

"They built us a new bedroom/den and did some other work finishing spaces. The team did an incredible job. They completed their work quickly and on budget. We will certainly use them again. "

John G on January 2026

Solid Foundation Construction is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you.

"They built us a new bedroom/den and did some other work finishing spaces. The team did an incredible job. They completed their work quickly and on budget. We will certainly use them again. "

John G on January 2026


Avatar for Precision Design And Contracting

Precision Design And Contracting

5.00(
11
)
Approved Pro

Precision Design And Contracting

5.00(
11
)
Approved Pro
6 years of experience
Free onsite estimate

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Precision Design And Contracting, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"I live in Stafford, Virginia and Brian came down and did the work for me when he normally works in Maryland only. I’m so thankful and love you. He came to do what he did and went above and beyond. I bought my house 10 years ago almost 11 now and he has helped me enjoy it so much. There was never a top level porch and Brian created our sanctuary. My husband was super impressed with his work. Thank you for helping us enjoy our home more!"

Nazira R on February 2026

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Precision Design And Contracting, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"I live in Stafford, Virginia and Brian came down and did the work for me when he normally works in Maryland only. I’m so thankful and love you. He came to do what he did and went above and beyond. I bought my house 10 years ago almost 11 now and he has helped me enjoy it so much. There was never a top level porch and Brian created our sanctuary. My husband was super impressed with his work. Thank you for helping us enjoy our home more!"

Nazira R on February 2026

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

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

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

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

The Lanham, 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.