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Avatar for Zen Windows of Washington DC

Zen Windows of Washington DC

5.00(
109
)
Approved Pro

Zen Windows of Washington DC

5.00(
109
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 years of experience

At Zen Windows, we think that finding replacement windows, sliding doors and entry doors for your home should be a simple, pleasant experience. Our team works closely with you via e-mail and phone to help shape the improvements you envision without ever having a salesperson visit your home. We offer award-winning, energy-efficient windows and doors, and provide a lifetime transferable product and installation warranty. Zen Windows sets our clients at ease with our No Down Payment Policy. You won't pay a penny until the job is completed. Simple, easy, stress-free...the way it should be.

"Our builder grade 1990s wood windows, door, transom and site-lite windows had all suffered from age and neglected painting. They were all long overdue for replacement and then we discovered Zen Windows of Washington, DC. They are consummate professionals. Their high quality, energy efficient products backed by a transferable lifetime warranty, strong technical knowledge, excellent value (price/quality relationship), pressure free consultative sales approach, and absolutely incredible install team left us 100% satisfied from beginning to end. The leader of the install team promised us that they would do the install as if it was his own home and actually did! I am very detail oriented and given the complexity of the job, their work was truly unbelievable. It’s perfect! Don’t waste your time with Andersen, Pella, Thompson Creek or others. Look no further than Zen Windows of Washington DC and work together with them to find the best solution for you. You will be very happy you did."

Devon S on June 2025

At Zen Windows, we think that finding replacement windows, sliding doors and entry doors for your home should be a simple, pleasant experience. Our team works closely with you via e-mail and phone to help shape the improvements you envision without ever having a salesperson visit your home. We offer award-winning, energy-efficient windows and doors, and provide a lifetime transferable product and installation warranty. Zen Windows sets our clients at ease with our No Down Payment Policy. You won't pay a penny until the job is completed. Simple, easy, stress-free...the way it should be.

"Our builder grade 1990s wood windows, door, transom and site-lite windows had all suffered from age and neglected painting. They were all long overdue for replacement and then we discovered Zen Windows of Washington, DC. They are consummate professionals. Their high quality, energy efficient products backed by a transferable lifetime warranty, strong technical knowledge, excellent value (price/quality relationship), pressure free consultative sales approach, and absolutely incredible install team left us 100% satisfied from beginning to end. The leader of the install team promised us that they would do the install as if it was his own home and actually did! I am very detail oriented and given the complexity of the job, their work was truly unbelievable. It’s perfect! Don’t waste your time with Andersen, Pella, Thompson Creek or others. Look no further than Zen Windows of Washington DC and work together with them to find the best solution for you. You will be very happy you did."

Devon S on June 2025


Avatar for Unicorp Home Energy Services

Unicorp Home Energy Services

4.95(
543
)
Approved Pro

Unicorp Home Energy Services

4.95(
543
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
38 years of experience

Since 1987 UNICORP Home Energy Services has made window, siding and roofing projects a worry free experience for over 23,000 homeowners in MD, VA and Washington D.C. We are proud of our flawless record with the Better Business Bureau because customer satisfaction is our number one priority. Our past partnerships with Price Club (Costco) and more recently Pepco Energy Services are a clear indication that we understand the importance of providing substantial savings and value on all our energy saving products. ---- At UNICORP we don't believe in hard-sell tactics, and never make cold calls that interrupt you at meal time. We understand the importance of making the right decision without headache or high pressure. That's why more customers refer us to their friends and family than any other window and siding company. Not surprising when dealing with professionals that care about their customers and love what they do. ---- We thank you for visiting our profile and look forward to improving the quality, enjoyment and energy efficiency of your home. ---- Additional phone - (703) 462-6100. Additional fax - (877) 867-3726. Award winning. Additional DBA - Vinyl Technologies Energy Service. Additional contact name- Brian Weil. Additional email - [email protected].

"We just had Unicorp install new windows throughout our entire house. The window quality is excellent and the installation went very well. We were replacing 55 years old windows - and were very happy with the entire process, from selection, exterior color choices, and finally installation."

sheila t on May 2025

Since 1987 UNICORP Home Energy Services has made window, siding and roofing projects a worry free experience for over 23,000 homeowners in MD, VA and Washington D.C. We are proud of our flawless record with the Better Business Bureau because customer satisfaction is our number one priority. Our past partnerships with Price Club (Costco) and more recently Pepco Energy Services are a clear indication that we understand the importance of providing substantial savings and value on all our energy saving products. ---- At UNICORP we don't believe in hard-sell tactics, and never make cold calls that interrupt you at meal time. We understand the importance of making the right decision without headache or high pressure. That's why more customers refer us to their friends and family than any other window and siding company. Not surprising when dealing with professionals that care about their customers and love what they do. ---- We thank you for visiting our profile and look forward to improving the quality, enjoyment and energy efficiency of your home. ---- Additional phone - (703) 462-6100. Additional fax - (877) 867-3726. Award winning. Additional DBA - Vinyl Technologies Energy Service. Additional contact name- Brian Weil. Additional email - [email protected].

"We just had Unicorp install new windows throughout our entire house. The window quality is excellent and the installation went very well. We were replacing 55 years old windows - and were very happy with the entire process, from selection, exterior color choices, and finally installation."

sheila t on May 2025


Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.85(
156
)
Approved Pro

Basement Gurus, LLC

4.85(
156
)
Approved Pro
Customers say: Quality work
15 years of experience
Free onsite estimate

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025


Avatar for Presidential Exteriors LLC

Presidential Exteriors LLC

4.88(
145
)
Approved Pro

Presidential Exteriors LLC

4.88(
145
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 years of experience

Licensed in MD, DC and VA, Presidential Exteriors is your one stop solution for any exterior remodeling needs. Our award winning products and experienced installers will ensure that your home is a Presidential Home. We look forward to showing you how our customer centric approach and commitment to communication guarantees satisfaction the first time, every time.

"I appreciated working with Nick, Vick, Nico and Angel. I had a many day project replacing my roof, gutters and patching/painting drywall. Everyone has been great with communication and follow through. All employees were pleasant and professional. I would highly recommend this company."

Elaine C on December 2025

Licensed in MD, DC and VA, Presidential Exteriors is your one stop solution for any exterior remodeling needs. Our award winning products and experienced installers will ensure that your home is a Presidential Home. We look forward to showing you how our customer centric approach and commitment to communication guarantees satisfaction the first time, every time.

"I appreciated working with Nick, Vick, Nico and Angel. I had a many day project replacing my roof, gutters and patching/painting drywall. Everyone has been great with communication and follow through. All employees were pleasant and professional. I would highly recommend this company."

Elaine C on December 2025


Seneca Creek Home Improvement, LLC

4.84(
109
)
Approved Pro

Seneca Creek Home Improvement, LLC

4.84(
109
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
30 years of experience

Seneca Creek Home Improvement specializes in Windows, Siding, Roofing and Doors. With over 15 years of experience providing quality products and service, we guarantee 100% Customer satisfaction!

"Over the past decade, Seneca Creek Home Improvement has replaced my roof, all windows, wrapped all original wood with aluminum; recent gutter project is just the latest work Jeff and his teams have done for us. The work is excellent, and has stood the test of time. Furthermore, Jeff Leach (the owner) absolutely stands behind his work 100%. Over the years there have been a few minor issues which he had his team fix without any issues or questions. You may find cheaper contractors (although Jeff is highly competitive) but if you want reliability and peace of mind, go with Jeff and his team. --Andy (Germantown, MD)"

Andrew J on June 2025

Seneca Creek Home Improvement specializes in Windows, Siding, Roofing and Doors. With over 15 years of experience providing quality products and service, we guarantee 100% Customer satisfaction!

"Over the past decade, Seneca Creek Home Improvement has replaced my roof, all windows, wrapped all original wood with aluminum; recent gutter project is just the latest work Jeff and his teams have done for us. The work is excellent, and has stood the test of time. Furthermore, Jeff Leach (the owner) absolutely stands behind his work 100%. Over the years there have been a few minor issues which he had his team fix without any issues or questions. You may find cheaper contractors (although Jeff is highly competitive) but if you want reliability and peace of mind, go with Jeff and his team. --Andy (Germantown, MD)"

Andrew J on June 2025


Avatar for Power Home Remodeling

Power Home Remodeling

4.77(
695
)
Approved Pro

Power Home Remodeling

4.77(
695
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
33 years of experience

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"We have gone with power many times and are always happy with their professionalism and the quality of the product. We like that they communicate well, have financing options, and they are always super personable people. Shout-out to Jonathan for the cool suspenders."

Scherlynn B on June 2025

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"We have gone with power many times and are always happy with their professionalism and the quality of the product. We like that they communicate well, have financing options, and they are always super personable people. Shout-out to Jonathan for the cool suspenders."

Scherlynn B on June 2025


Avatar for JS Castle Contracting

JS Castle Contracting

4.97(
15
)
Approved Pro

JS Castle Contracting

4.97(
15
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
20 years of experience

At JS Castle Contracting, LLC, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Have used Joe 3 times now. First to replace 4 exterior doors. Second to refinish some interior paint and trim. Lastly for a complete kitchen remodel. Each and every time he was prompt and very professional with great attention to detail. He has a permanent place in my address book and will certainly be called on again, probably sooner than later."

patrick w on September 2021

At JS Castle Contracting, LLC, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Have used Joe 3 times now. First to replace 4 exterior doors. Second to refinish some interior paint and trim. Lastly for a complete kitchen remodel. Each and every time he was prompt and very professional with great attention to detail. He has a permanent place in my address book and will certainly be called on again, probably sooner than later."

patrick w on September 2021


Avatar for Nova Exteriors Inc

Nova Exteriors Inc

4.71(
389
)
Approved Pro

Nova Exteriors Inc

4.71(
389
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
30 years of experience

NOVA Exteriors, Inc. is a 12 time Angie's List Super Service Award Winner in several categories. We specialize in exterior remodeling and have over 50 years combined experience in the Metropolitan Area. We take pride in our work and we would appreciate the opportunity to showcase our services.

"NOVA Exteriors did a wonderful job replacing 3 exterior doors at our home. They checked every box one could ask for. Rob our sales rep was patient and understanding of our needs - even coming back a second time as we had a hard time deciding on what we wanted. Their team worked quickly and did a great job installing some beautiful new doors. We noticed after the installation that there were some imperfections on the hardware installed and they have agreed to replace them & their customer service was top notch. They responded quickly to some minor concerns and went above and beyond to fix the problem. While doors are never cheap, their price was right in line with other Provia vendors and 1/2 the price of Pella vendors. I'd highly recommend them."

Ryan B on April 2024

NOVA Exteriors, Inc. is a 12 time Angie's List Super Service Award Winner in several categories. We specialize in exterior remodeling and have over 50 years combined experience in the Metropolitan Area. We take pride in our work and we would appreciate the opportunity to showcase our services.

"NOVA Exteriors did a wonderful job replacing 3 exterior doors at our home. They checked every box one could ask for. Rob our sales rep was patient and understanding of our needs - even coming back a second time as we had a hard time deciding on what we wanted. Their team worked quickly and did a great job installing some beautiful new doors. We noticed after the installation that there were some imperfections on the hardware installed and they have agreed to replace them & their customer service was top notch. They responded quickly to some minor concerns and went above and beyond to fix the problem. While doors are never cheap, their price was right in line with other Provia vendors and 1/2 the price of Pella vendors. I'd highly recommend them."

Ryan B on April 2024


Avatar for Power Home Remodeling

Power Home Remodeling

4.63(
483
)
Approved Pro

Power Home Remodeling

4.63(
483
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
33 years of experience

Does your home need replacement windows that are high-quality, energy-efficient, and come with a lifetime warranty? We're the nation's largest full-service exterior home remodeler and over 1000 lifetime Angi Super Service Awards. We can help transform your house into the beautiful and cost-effective home you've always dreamed of. At Power, you'll love our friendly, knowledgeable, and professional remodeling consultants and be delighted by our top-rated installation process. But don't take it from us. We've served over 1,000,000 customers across the U.S earning a 95% overall satisfaction rating. For a free, no-obligation estimate, call: (610) 990-4243 or visit https://powerhrg.com/project-quote/.

"At first I rated them a 5 but they had me put in a review before the job was even completed. They used old tarp from previous jobs. There were debris all over my bedding and furniture from the old plastic tarp. If they needed new tarp I would supply them. Who knows what the previous projects had in their homes. I didn't notice till after they left. Yes, you definitely will need to vacuum. Which I expected, but not having to wash all bedding and vacuum furniture. The windows look good, but it's so much cleaning afterwards. So when they say you'll never notice they were there. Was not true at all. One of my bushes in the front were also damaged and trampled on."

Phetdara P on October 2025

Does your home need replacement windows that are high-quality, energy-efficient, and come with a lifetime warranty? We're the nation's largest full-service exterior home remodeler and over 1000 lifetime Angi Super Service Awards. We can help transform your house into the beautiful and cost-effective home you've always dreamed of. At Power, you'll love our friendly, knowledgeable, and professional remodeling consultants and be delighted by our top-rated installation process. But don't take it from us. We've served over 1,000,000 customers across the U.S earning a 95% overall satisfaction rating. For a free, no-obligation estimate, call: (610) 990-4243 or visit https://powerhrg.com/project-quote/.

"At first I rated them a 5 but they had me put in a review before the job was even completed. They used old tarp from previous jobs. There were debris all over my bedding and furniture from the old plastic tarp. If they needed new tarp I would supply them. Who knows what the previous projects had in their homes. I didn't notice till after they left. Yes, you definitely will need to vacuum. Which I expected, but not having to wash all bedding and vacuum furniture. The windows look good, but it's so much cleaning afterwards. So when they say you'll never notice they were there. Was not true at all. One of my bushes in the front were also damaged and trampled on."

Phetdara P on October 2025


Avatar for Glass Impressions

Glass Impressions

4.82(
22
)
Approved Pro

Glass Impressions

4.82(
22
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
41 years of experience

My name is Damon Gunson. I’m the owner & operator of Glass Impressions, founded in 1996. It has been my lifelong dream to operate a glass retail facility. I am a sixth generation glass technician who has managed large franchise operations with 40+ locations as well as smaller, community based “Mom and Pop” shops. I have taken all these past experiences and personally feel that I have created the perfect glass shop. We have the capabilities of taking care of anything glass related with fast FREE mobile service to your home, office, or wherever you are located. We service the MD and D.C. area from three locations that can give our customers prompt, friendly service with a lifetime guarantee at an economic price. There is no job too large or small that we can’t handle for you. Call us now at Glass Impressions and I personally guarantee your satisfaction.

"Glass impressions provided us with size and price options that best for our wants and needs. It was installed very efficiently. We love it, and it's perfect for our space!"

Jessica S on January 2021

My name is Damon Gunson. I’m the owner & operator of Glass Impressions, founded in 1996. It has been my lifelong dream to operate a glass retail facility. I am a sixth generation glass technician who has managed large franchise operations with 40+ locations as well as smaller, community based “Mom and Pop” shops. I have taken all these past experiences and personally feel that I have created the perfect glass shop. We have the capabilities of taking care of anything glass related with fast FREE mobile service to your home, office, or wherever you are located. We service the MD and D.C. area from three locations that can give our customers prompt, friendly service with a lifetime guarantee at an economic price. There is no job too large or small that we can’t handle for you. Call us now at Glass Impressions and I personally guarantee your satisfaction.

"Glass impressions provided us with size and price options that best for our wants and needs. It was installed very efficiently. We love it, and it's perfect for our space!"

Jessica S on January 2021

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Glass Block Windows questions, answered by experts

If an individual block breaks, you can remove and replace it. This is a job for which you should contact a professional because the project is usually complex, involving you having to break the block further.

Glass block windows last about 15 to 30 years, which is the same amount of time, if not slightly less, than standard windows. Standard windows last 20 to 50 years. You can extend the life of your glass block windows by resealing them every few years. Hiring a pro for installation is also key to windows that will function properly for years to come.

Glass block mortar is the best choice for glass block window units. It is specifically formulated for glass block window installation. Glass block mortar is usually a mixture of Portland cement, sand, and special chemicals. It is a white mortar that is applicable inside and outside your home. Do not use regular tile mortar because it may not have the binding strength and flexibility required for glass block windows.

Although glass block windows are made of multiple layers of thick glass, they’re still susceptible to breaking. If your glass block window shatters, contact a window repair professional to remove and replace the glass block. Don’t attempt to handle it yourself because the broken glass can be dangerously sharp. A window repair pro will have the tools and expertise to replace the broken glass block quickly. Before hiring, be sure to confirm the repair pro has experience with repairing or replacing that specific type of window.

Their thickness depends on application, but most glass walls are typically 3/8 to 3/4 of an inch thick. Although it’s not as common, single panes of glass can also be 1 inch thick.

The Urbana, MD homeowners’ guide to glass block window services

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