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Avatar for AROCON Roofing & Construction

AROCON Roofing & Construction

4.51(
1,357
)
Approved Pro

AROCON Roofing & Construction

4.51(
1,357
)
Approved Pro
Customers say: Quality work
2008 years of experience
Free onsite estimate

AROCON offers superior services at an affordable price because we are your Maryland & Virginia contractor. We service all of Anne Arundel, Baltimore, Carroll, Dorchester, Frederick, Howard, Harford, Montgomery, Prince George's, Queen Annes, Talbot, Wicomico, and Worchester Maryland counties, as well as Fairfax, Arlington, Loudoun, Fauquier, and Prince William, Virginia counties and parts of Southern Pennsylvania. Instead of focusing on completing as many jobs as possible, AROCON focuses on providing quality work and getting to know our customers. This allows us to provide high quality, customized results and unparalleled customer service without adding extensive overhead or expenses. For all of your Roofing & Construction needs, you can count on our experienced team at AROCON Roofing & Construction. We service all of Anne Arundel, Baltimore, Carroll, Frederick, Howard, Harford and Montgomery counties, including parts of Prince George's county and Southern Pennsylvania. Call us today to make Home Improvement, Simplified. #rooftuneup.

"They quoted half of the other two we got quotes from. Work was scheduled a couple weeks later and done in a day."

Katrina B on October 2024

AROCON offers superior services at an affordable price because we are your Maryland & Virginia contractor. We service all of Anne Arundel, Baltimore, Carroll, Dorchester, Frederick, Howard, Harford, Montgomery, Prince George's, Queen Annes, Talbot, Wicomico, and Worchester Maryland counties, as well as Fairfax, Arlington, Loudoun, Fauquier, and Prince William, Virginia counties and parts of Southern Pennsylvania. Instead of focusing on completing as many jobs as possible, AROCON focuses on providing quality work and getting to know our customers. This allows us to provide high quality, customized results and unparalleled customer service without adding extensive overhead or expenses. For all of your Roofing & Construction needs, you can count on our experienced team at AROCON Roofing & Construction. We service all of Anne Arundel, Baltimore, Carroll, Frederick, Howard, Harford and Montgomery counties, including parts of Prince George's county and Southern Pennsylvania. Call us today to make Home Improvement, Simplified. #rooftuneup.

"They quoted half of the other two we got quotes from. Work was scheduled a couple weeks later and done in a day."

Katrina B on October 2024


Avatar for Jim Ness

Jim Ness

4.86(
25
)
Approved Pro

Jim Ness

4.86(
25
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
1985 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!

"Man sent to do various odd jobs in Germantown--install blinds, TV mount, cabinet, etc.--was efficient and easy to communicate with. Did exactly what I needed with quality work and kept me informed of any problems he encountered. Price was reasonable."

James M on March 2025

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!

"Man sent to do various odd jobs in Germantown--install blinds, TV mount, cabinet, etc.--was efficient and easy to communicate with. Did exactly what I needed with quality work and kept me informed of any problems he encountered. Price was reasonable."

James M on March 2025


KMA Associates, Inc.

4.70(
6
)
Approved Pro

KMA Associates, Inc.

4.70(
6
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1982 years of experience

My name is Robert Congedo president of KMA Associates, Inc, I have the following licenses: Class A Virginia, Maryland contractors, Maryland home improvement, Montgomery contracting, PG county contracting, Calvert Co contracting, District of Columbia contracting, land disturber certified from Virginia. I have over thirty years of experience from building houses in all price ranges, in all of these areas. I spend a lot of time on every job to make sure things are done right. All of my homes have appraised for 10 to 30 percent higher than the cost to build. I can offer you competitive pricing as I have low overhead and years of experience with all my subs. I build one at a time. All my estimates are free and depending on the detail are exact prices. I have never increased price on any project without the owner's approval in writing.I also carry over two million in liability insurance . I can find lots in any area and have available architects to help design your home.

"We recently hired KMA to remodel our kitchen and they did a beautiful job!! They were very knowledgeable in all aspects of the project and kept us informed every step of the way. We will be using them again to update our 2.5 bathrooms in the future."

Elizabeth W on August 2024

My name is Robert Congedo president of KMA Associates, Inc, I have the following licenses: Class A Virginia, Maryland contractors, Maryland home improvement, Montgomery contracting, PG county contracting, Calvert Co contracting, District of Columbia contracting, land disturber certified from Virginia. I have over thirty years of experience from building houses in all price ranges, in all of these areas. I spend a lot of time on every job to make sure things are done right. All of my homes have appraised for 10 to 30 percent higher than the cost to build. I can offer you competitive pricing as I have low overhead and years of experience with all my subs. I build one at a time. All my estimates are free and depending on the detail are exact prices. I have never increased price on any project without the owner's approval in writing.I also carry over two million in liability insurance . I can find lots in any area and have available architects to help design your home.

"We recently hired KMA to remodel our kitchen and they did a beautiful job!! They were very knowledgeable in all aspects of the project and kept us informed every step of the way. We will be using them again to update our 2.5 bathrooms in the future."

Elizabeth W on August 2024


"Arrived on time, and removed old windows and replaced with glass block. Everything was precisely what I expected, and there were no problems."

DeWilton H on June 2018

8 employees, No subs. Cost is determined by the job. Travel charges can apply.

"Arrived on time, and removed old windows and replaced with glass block. Everything was precisely what I expected, and there were no problems."

DeWilton H on June 2018


Wellman General Contracting And Home Improvements

4.95(
39
)

Wellman General Contracting And Home Improvements

4.95(
39
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Family owned & operated. We all take great pride in our homes. These are the very special places where families are raised and friends are warmly welcomed. Throughout the years we put our homes through a lot of traffic. As all those friends, visitors and family come and go, there is a chance for homeowners to step back and think about ways to make things just a little bit better around the house. Perhaps you’ve been thinking about a more open kitchen with updated appliances and cabinets. Maybe you’ve always wanted to relax in a luxurious spa tub. Or you’ve been dreaming of turning your basement into the perfect family room. Wellman General Contracting is here to turn those dreams of your perfect home into a reality. We offer a wide range of services for any type of remodel or home make-over project. Whether it’s one room or an entire house, we can take you step-by-step through the entire process. Spend a few moments on this site to see some of our work. We’re proud of every job. Perhaps they will even inspire your next home remodeling project. Award winning.

"Wellman had to do lead remediation for 2 1950’s style bathrooms. They completely gutted them and re-built everything in a record-breaking 3 weeks! Very professional, thorough and clean."

Margaret S on August 2018

Family owned & operated. We all take great pride in our homes. These are the very special places where families are raised and friends are warmly welcomed. Throughout the years we put our homes through a lot of traffic. As all those friends, visitors and family come and go, there is a chance for homeowners to step back and think about ways to make things just a little bit better around the house. Perhaps you’ve been thinking about a more open kitchen with updated appliances and cabinets. Maybe you’ve always wanted to relax in a luxurious spa tub. Or you’ve been dreaming of turning your basement into the perfect family room. Wellman General Contracting is here to turn those dreams of your perfect home into a reality. We offer a wide range of services for any type of remodel or home make-over project. Whether it’s one room or an entire house, we can take you step-by-step through the entire process. Spend a few moments on this site to see some of our work. We’re proud of every job. Perhaps they will even inspire your next home remodeling project. Award winning.

"Wellman had to do lead remediation for 2 1950’s style bathrooms. They completely gutted them and re-built everything in a record-breaking 3 weeks! Very professional, thorough and clean."

Margaret S on August 2018


Avatar for On the Level Contracting & Trucking, Inc.

On the Level Contracting & Trucking, Inc.

5.00(
19
)

On the Level Contracting & Trucking, Inc.

5.00(
19
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Established in 1995, our local, family owned and operated business strives to provide exceptional remodeling services. Turn to On The Level Contracting in Chantilly, VA for plumbing and electrical, kitchen and bathroom remodeling, deck services, and more. Depend on our team to take care of all your needs efficiently! You can give us a call at 571-375-1700 for more information!

"We had a very complex front door to install and On the Level did a superior job -- the quality of the work was superb, the price was more than fair, and all of the work was completed in a timely manner. Peter did a great job communicating through out the process --we would hire them again."

jeffrey s on April 2020

Established in 1995, our local, family owned and operated business strives to provide exceptional remodeling services. Turn to On The Level Contracting in Chantilly, VA for plumbing and electrical, kitchen and bathroom remodeling, deck services, and more. Depend on our team to take care of all your needs efficiently! You can give us a call at 571-375-1700 for more information!

"We had a very complex front door to install and On the Level did a superior job -- the quality of the work was superb, the price was more than fair, and all of the work was completed in a timely manner. Peter did a great job communicating through out the process --we would hire them again."

jeffrey s on April 2020


Avatar for Window Nation Baltimore

Window Nation Baltimore

4.50(
747
)

Window Nation Baltimore

4.50(
747
)
Customers say: Quality work
2006 years of experience

At Window Nation, we know replacement windows. We’re third-generation window replacement experts who have been lucky to provide homeowners replacement windows, siding, and doors for over fifteen years. We opened our first showroom in Maryland in 2006, quickly growing to serve homeowners in cities across the country – and we’re not stopping there. We’re grateful for every homeowner who has trusted us to upgrade their most important asset: their home. We’ve learned a lot about home improvement over the years, but the most important thing we learned isn’t about window replacement. We learned the home improvement industry isn’t about offering the best windows, siding and doors; it’s about the relationships we build with our customers.

"The salesman was late. The person taking measurements missed a window rushing before his vacation. Which in turn delayed our project 2 weeks. The installers damaged our new porch and installed 5 defective windows. We have had 0 updates on how our windows and home will he repaired but we have received numerous. Text, emails, and posted mail begging for 5 stars including a gift card as a thanks. It has now been over 5 months and we still have windows that need to be replaced and Window Nation has fraudulently told the finance department the job is complete so we now need to pay for a job that is not completed. Avoid this company if possible."

Emily R on November 2024

At Window Nation, we know replacement windows. We’re third-generation window replacement experts who have been lucky to provide homeowners replacement windows, siding, and doors for over fifteen years. We opened our first showroom in Maryland in 2006, quickly growing to serve homeowners in cities across the country – and we’re not stopping there. We’re grateful for every homeowner who has trusted us to upgrade their most important asset: their home. We’ve learned a lot about home improvement over the years, but the most important thing we learned isn’t about window replacement. We learned the home improvement industry isn’t about offering the best windows, siding and doors; it’s about the relationships we build with our customers.

"The salesman was late. The person taking measurements missed a window rushing before his vacation. Which in turn delayed our project 2 weeks. The installers damaged our new porch and installed 5 defective windows. We have had 0 updates on how our windows and home will he repaired but we have received numerous. Text, emails, and posted mail begging for 5 stars including a gift card as a thanks. It has now been over 5 months and we still have windows that need to be replaced and Window Nation has fraudulently told the finance department the job is complete so we now need to pay for a job that is not completed. Avoid this company if possible."

Emily R on November 2024


Avatar for Apex Waterproofing

Apex Waterproofing

4.65(
129
)

Apex Waterproofing

4.65(
129
)
Customers say: Super punctual
2009 years of experience

Welcome to Apex Waterproofing, your one stop shop for whole home remodeling, residential and commercial basement waterproofing and foundation structural concerns. We are a fully licensed, bonded, and insured 3rd Generation General Contractor providing quality services to the Northern Virginia and Maryland areas since 1943.

"I used Apex to fix a situation where water would leak into my basement through the electrical panel during a long, heavy downpour. It was a particularly unique and difficult problem to solve which involved excavating under part of a flagstone patio, determining the source(s) of the leak and sealing. Their final solution was very thorough and attacked the problem from multiple directions. I was impressed with their dedication to doing the job right. The clean-up was also thorough (the patio looked better after they left than before they started!) The crew was great! They worked hard and knew what they were doing. Since it was such a tricky problem, Lou, the manager, was on-site for most of the day. They also have an excellent electrician on the team which was a definite plus for this project. I used Apex a couple of years ago to renovate the basement and was very pleased with the result of that project as well. They’ve been in the business for many years and are deservedly proud of their reputation for quality work. I wouldn’t hesitate to use them again."

MARY ANNE C on April 2019

Welcome to Apex Waterproofing, your one stop shop for whole home remodeling, residential and commercial basement waterproofing and foundation structural concerns. We are a fully licensed, bonded, and insured 3rd Generation General Contractor providing quality services to the Northern Virginia and Maryland areas since 1943.

"I used Apex to fix a situation where water would leak into my basement through the electrical panel during a long, heavy downpour. It was a particularly unique and difficult problem to solve which involved excavating under part of a flagstone patio, determining the source(s) of the leak and sealing. Their final solution was very thorough and attacked the problem from multiple directions. I was impressed with their dedication to doing the job right. The clean-up was also thorough (the patio looked better after they left than before they started!) The crew was great! They worked hard and knew what they were doing. Since it was such a tricky problem, Lou, the manager, was on-site for most of the day. They also have an excellent electrician on the team which was a definite plus for this project. I used Apex a couple of years ago to renovate the basement and was very pleased with the result of that project as well. They’ve been in the business for many years and are deservedly proud of their reputation for quality work. I wouldn’t hesitate to use them again."

MARY ANNE C on April 2019


Avatar for Allen Home Masonry

Allen Home Masonry

5.00(
36
)

Allen Home Masonry

5.00(
36
)
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

My name is Mairtin OhAilin I was born and raised in Ireland but have lived in the United States for the past 16 years. I completed a four year training course and apprenticeship in stone and brick masonry in Ireland to receive a National Craft Certificate for Masonry. I have over 16 years experience in masonry and tile work. We do it right the first time. I started my company 10 years ago, my goal from the start was to give my clients top quality work and a stress free experience, every project I take on, will be done by the highest standards. I love and enjoy what I do and I believe it shows in my work. Allen Home Masonry prides itself on excellent customer relations, quality workmanship, and competitive pricing. Martin has the knowledge and experience to give design ideas that will greatly increase your home value.

"Martin Allen did a great job. He replaced about 25 cracked or broken bricks on our front stoop and our patio behind the house. The bricks he installed match the older bricks very well and his masonry work was quite professional."

Donald T on March 2019

My name is Mairtin OhAilin I was born and raised in Ireland but have lived in the United States for the past 16 years. I completed a four year training course and apprenticeship in stone and brick masonry in Ireland to receive a National Craft Certificate for Masonry. I have over 16 years experience in masonry and tile work. We do it right the first time. I started my company 10 years ago, my goal from the start was to give my clients top quality work and a stress free experience, every project I take on, will be done by the highest standards. I love and enjoy what I do and I believe it shows in my work. Allen Home Masonry prides itself on excellent customer relations, quality workmanship, and competitive pricing. Martin has the knowledge and experience to give design ideas that will greatly increase your home value.

"Martin Allen did a great job. He replaced about 25 cracked or broken bricks on our front stoop and our patio behind the house. The bricks he installed match the older bricks very well and his masonry work was quite professional."

Donald T on March 2019


"I hired Renaissance to re-tuckpoint my home in 2016. After only a few years, the mortar is failing miserably. in some places the mortar is 90% gone and the bricks are eroding. The work falls under a 10-yr warranty, but after I contacted them and David Hutton came to take a look, he has been very cagey with details and info on how the repair will proceed. He has ignored my repeated requests for details on how they will test the remaining mortar for compromise and when I requested a drawing showing the boundaries of the mortar that needs repair, he has only told me that they'll provide before and after pics. I have no faith whatsoever that this job will be properly repaired after all of this. Save yourself many headaches and lots of money and don't hire this company."

C R on October 2025

Renaissance Development LLC is a Washington, DC-based company that specializes in exterior masonry. We lead the way in historically correct tuckpointing, repair, and preservation of DC's old brick homes and institutions.

"I hired Renaissance to re-tuckpoint my home in 2016. After only a few years, the mortar is failing miserably. in some places the mortar is 90% gone and the bricks are eroding. The work falls under a 10-yr warranty, but after I contacted them and David Hutton came to take a look, he has been very cagey with details and info on how the repair will proceed. He has ignored my repeated requests for details on how they will test the remaining mortar for compromise and when I requested a drawing showing the boundaries of the mortar that needs repair, he has only told me that they'll provide before and after pics. I have no faith whatsoever that this job will be properly repaired after all of this. Save yourself many headaches and lots of money and don't hire this company."

C R on October 2025

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Glass Block questions, answered by experts

Glass blocks are much thicker than glass panes in traditional windows and serve as better insulators. The overall glass block window is sealed against drafts that allow warm or cool air to escape, saving on energy costs. Since this type of window is sealed airtight into your home, you don’t have to worry about air leaks and drafts as often as traditional windows that open and close. When installing glass block windows, look for options that are Energy Star rated, proving their energy efficiency.

Yes, many professionals provide custom-cut glass replacements for enclosures that require precise sizing.

Most installations take 1-3 days, depending on the number of blocks and customization requirements.

Glass block windows cost about $710 to install, ranging from $460 to $980. The cost factors of installing this type of specialty window include the opening size, design, layout, height, glass block type, installation type, and location. There are many block styles to choose from, including colored, clear, wavy, diamond, and frosted.

Consider the following price ranges of installing glass blocks based on size:

  • 25-by-25 inches: $60–$300

  • 31-by-31 inches: $65–$350

  • 36-by-36 inches: $85–$475

  • 48-by-48 inches: $155–$840

Regular cleaning with non-abrasive cleaners helps prevent buildup and maintains clarity.

The Olney, MD homeowners’ guide to glass block services

From average costs to expert advice, get all the answers you need to get your job done.