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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

4.84(
151
)
Approved Pro

Basement Gurus, LLC

4.84(
151
)
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

4.70(
159
)
Approved Pro

Presidential Exteriors LLC

4.70(
159
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% 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.

"Presidential Exteriors takes their lifetime warranties very seriously. Every time I've had an issue since they redid my roof, I've contacted them, and they've fixed the problem without charging. I appreciate them a lot. Good job, James, Hicks, and Glu!"

Russell W on September 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.

"Presidential Exteriors takes their lifetime warranties very seriously. Every time I've had an issue since they redid my roof, I've contacted them, and they've fixed the problem without charging. I appreciate them a lot. Good job, James, Hicks, and Glu!"

Russell W on September 2025


Avatar for Peak Custom Remodeling Corporation

Peak Custom Remodeling Corporation

4.75(
125
)
Approved Pro

Peak Custom Remodeling Corporation

4.75(
125
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
20 years of experience

We are the only company in Maryland offering the “Forever Guarantee” - A guarantee of our workmanship for as long as both you AND the next owner own the home. Unlike other companies we don’t just TELL you something will look good - we SHOW you. We provide full color 3-D renderings of all of our products to show what they will look like on your home PRIOR to you making any decisions or signing a contract. We do this for free the first time we come out as part of our free estimate & design consultation. If you decide to move forward, you don’t have to pay a single dollar until the job is complete and you are satisfied. With the Forever Guarantee, full color 3-D designs before you make a decision, and no payments until the job is complete - our goal is COMPLETE peace of mind for all our customers. We then follow this up with top notch communication, customer service, skill, and quality for Maryland’s leading exterior replacement experience.

"Great work"

max d on August 2025

We are the only company in Maryland offering the “Forever Guarantee” - A guarantee of our workmanship for as long as both you AND the next owner own the home. Unlike other companies we don’t just TELL you something will look good - we SHOW you. We provide full color 3-D renderings of all of our products to show what they will look like on your home PRIOR to you making any decisions or signing a contract. We do this for free the first time we come out as part of our free estimate & design consultation. If you decide to move forward, you don’t have to pay a single dollar until the job is complete and you are satisfied. With the Forever Guarantee, full color 3-D designs before you make a decision, and no payments until the job is complete - our goal is COMPLETE peace of mind for all our customers. We then follow this up with top notch communication, customer service, skill, and quality for Maryland’s leading exterior replacement experience.

"Great work"

max d on August 2025


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
17 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 Maryland Windows Doors Roofs

Maryland Windows Doors Roofs

5.00(
22
)
Approved Pro

Maryland Windows Doors Roofs

5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We are dedicated to service, service, service. No matter how large or small the project, we want to make sure we deliver exactly what you're expecting. We review the project and discuss all the details involved in the design and execution. Our goal is to deliver exactly what our customers expect, and to do it well. From door surrounds to complete makeovers, we have the design skills to help develop a coherent plan for your home. Whether you want to do it all at once or a piece at a time, we have computer imaging available to make the process simple. Great craftsmanship, clean projects. Additional email: [email protected].

"We’re very pleased with the results. Front door is the best feature of the house front. Keith provides the best choices for the front door concerning any weather exposure. Employees showed up on time and did a high quality work. They left the workspace spotless. A few months later we had gutters replaced and capping done. Once again, the crew showed up on time and did high quality work. Keith improved the gutter design on the front and on one of the sides of the house. Old gutters were way too small for the size of the roof and couldn’t handle the amount of rain we’ve been having lately. The new gutters are bigger and handle the amount of rain without overflowing. The price for the projects was very reasonable especially compared to other local businesses."

Daina H on May 2019

We are dedicated to service, service, service. No matter how large or small the project, we want to make sure we deliver exactly what you're expecting. We review the project and discuss all the details involved in the design and execution. Our goal is to deliver exactly what our customers expect, and to do it well. From door surrounds to complete makeovers, we have the design skills to help develop a coherent plan for your home. Whether you want to do it all at once or a piece at a time, we have computer imaging available to make the process simple. Great craftsmanship, clean projects. Additional email: [email protected].

"We’re very pleased with the results. Front door is the best feature of the house front. Keith provides the best choices for the front door concerning any weather exposure. Employees showed up on time and did a high quality work. They left the workspace spotless. A few months later we had gutters replaced and capping done. Once again, the crew showed up on time and did high quality work. Keith improved the gutter design on the front and on one of the sides of the house. Old gutters were way too small for the size of the roof and couldn’t handle the amount of rain we’ve been having lately. The new gutters are bigger and handle the amount of rain without overflowing. The price for the projects was very reasonable especially compared to other local businesses."

Daina H on May 2019


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 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

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Glass Block Windows questions, answered by experts

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.

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 installation can be relatively expensive due to the range of material costs and the labor time to assemble this type of specialty window. The process proceeds slowly as the glass does not absorb moisture from mortar and silicone caulk takes longer to harden, leaving spacers to hold up the structure until the caulk or mortar begins to cure. Plus, if your current windows have structural issues or damage, you’ll need to repair them before beginning the project, increasing your bottom line. 

Installation costs range from $400 to $1,500, depending on wall size, design complexity, and labor.

DIY is possible for small projects, but professional installation ensures proper sealing, structural integrity, and a precise finish.

The Point Of Rocks, MD homeowners’ guide to glass block window services

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

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