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    Verified window services reviews

Find Window pros in Frederick

VELUX America

New on AngiNew on Angi
Approved Pro

VELUX America

New on AngiNew on Angi
Approved Pro

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.


Avatar for Peak Custom Remodeling Corporation

Peak Custom Remodeling Corporation

4.75(
124
)
Approved Pro

Peak Custom Remodeling Corporation

4.75(
124
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
364 local quotes requested

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


"Kenny and team were amazing to work with - professional, polite, honest, and finished the project ahead of schedule and at a very fair price. We had two old single pane windows replaced in our basement (which may have been 50+ years old), and a new window well installed. The work was very well done. I have since recommended Clifton to multiple friends and other contractors. Five stars."

Alex W on September 2025

Locally owned and operated. We are here to turn your project idea into reality. Additional phone number - (703) 830-6103.

"Kenny and team were amazing to work with - professional, polite, honest, and finished the project ahead of schedule and at a very fair price. We had two old single pane windows replaced in our basement (which may have been 50+ years old), and a new window well installed. The work was very well done. I have since recommended Clifton to multiple friends and other contractors. Five stars."

Alex W on September 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
52 local quotes requested

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


West Shore Home Mechanicsburg

New on AngiNew on Angi
Approved Pro

West Shore Home Mechanicsburg

New on AngiNew on Angi
Approved Pro
127 local quotes requested
19 years of experience

West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in window, entry door, shower and bath replacements, including walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in window, entry door, shower and bath replacements, including walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.


DZ Renovation, LLC

5.00(
6
)
Approved Pro

DZ Renovation, LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Have you ever gotten an estimate or from, or a large remodeling company that was overpriced? Mark Dziengiel, owner of DZ Renovation was a Vice President at a 75 million dollar, nationally recognized company. We know this industry like the back of our hand. There are too many multimillion and billion dollar remodeling companies overcharging consumers for premium remodels. DZ Renovation was founded on the same business model as the large companies everyone has heard of. We carry the same ultra-premium and custom made products, with factory trained installers, competitive financing, and all-inclusive lifetime warranties; without the massive markup. We are not the small remodeling company taking shortcuts to be the lowest bid, we do everything meticulously and only offer products we would put in or on our own home. We will be far from the highest priced company you can hire, while delivering highest quality service.

"Full house gutter replacement. Nick was 1 of 5 sales personnel that came to my home to present and gave me a no hassle free estimate, he left a lasting impression, months later I call to sign the contract and proceed, believe it or not he was the only salesman my wife remember because he was so professional, knowledgeable and respectful. From the time I signed to the time the work was completed was less than 1 week. The installers were awesome, couldn’t ask for more. I definitely recommend DZ renovation. Mark call after completion to make sure all went well. Thank you DZ. I can rest assured that water from my roofs is well controlled. "

Alex A on November 2025

Have you ever gotten an estimate or from, or a large remodeling company that was overpriced? Mark Dziengiel, owner of DZ Renovation was a Vice President at a 75 million dollar, nationally recognized company. We know this industry like the back of our hand. There are too many multimillion and billion dollar remodeling companies overcharging consumers for premium remodels. DZ Renovation was founded on the same business model as the large companies everyone has heard of. We carry the same ultra-premium and custom made products, with factory trained installers, competitive financing, and all-inclusive lifetime warranties; without the massive markup. We are not the small remodeling company taking shortcuts to be the lowest bid, we do everything meticulously and only offer products we would put in or on our own home. We will be far from the highest priced company you can hire, while delivering highest quality service.

"Full house gutter replacement. Nick was 1 of 5 sales personnel that came to my home to present and gave me a no hassle free estimate, he left a lasting impression, months later I call to sign the contract and proceed, believe it or not he was the only salesman my wife remember because he was so professional, knowledgeable and respectful. From the time I signed to the time the work was completed was less than 1 week. The installers were awesome, couldn’t ask for more. I definitely recommend DZ renovation. Mark call after completion to make sure all went well. Thank you DZ. I can rest assured that water from my roofs is well controlled. "

Alex A on November 2025


Avatar for General Construction Doctors

General Construction Doctors

New on AngiNew on Angi
Approved Pro

General Construction Doctors

New on AngiNew on Angi
Approved Pro
2 years of experience
Free onsite estimate

General Construction Doctors LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

General Construction Doctors LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.


"Project was delayed multiple times. Stated they will give a discount, they never did."

Martin L on November 2025

Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation

"Project was delayed multiple times. Stated they will give a discount, they never did."

Martin L on November 2025


West Shore Home Baltimore

New on AngiNew on Angi
Approved Pro

West Shore Home Baltimore

New on AngiNew on Angi
Approved Pro
237 local quotes requested
19 years of experience

West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in shower and bath replacements, and walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right.

West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in shower and bath replacements, and walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right.


Avatar for JULU Construction, LLC

JULU Construction, LLC

5.00(
4
)
Approved Pro

JULU Construction, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

JULU Construction LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 25 years of experience serving Olney, MD and surrounding areas. There is no job too big, or too small for our team. Call today...

"Great"

David R on June 2021

JULU Construction LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 25 years of experience serving Olney, MD and surrounding areas. There is no job too big, or too small for our team. Call today...

"Great"

David R on June 2021

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Windows questions, answered by experts

After window installation in Frederick, schedule any required inspections, especially if your home is in a historic district. Test all window locks, check for smooth operation, and inspect caulking for airtight seals. Establish a seasonal routine—clean glass, check for drafts, and watch for condensation during MD’s humid summers. Keep all permits and warranties organized, and monitor energy bills to track improvements in efficiency.

Helpful?

Window replacement in Frederick enhances comfort by reducing winter drafts, blocking summer humidity, and improving indoor air quality. New windows can also reduce outside noise from busy local streets and boost curb appeal, especially in historic neighborhoods. Improved insulation supports lower energy use, while modern locking features add security. These upgrades make Frederick homes more comfortable, efficient, and aligned with local preservation values.

Helpful?

In Frederick, window replacement or installation can impact nearby electrical wiring, HVAC airflow, and even original framing—especially in historic homes common to the area. Before starting, check for hidden wiring or ductwork near window openings. Upgrading to energy-efficient windows may also change how your HVAC system operates. Consulting a local window contractor familiar with Frederick’s housing stock helps prevent unexpected disruptions.

Helpful?

For Frederick homes, prioritize safety by installing window stops that meet local code, opting for laminated or tempered glass on lower floors, and selecting pet-resistant screens for added durability. In older homes, check for lead paint before starting any window replacement. Choose window styles that limit how far they open, and always keep tools and materials out of reach during installation to ensure a safe environment.

Helpful?

Homeowners in Frederick should consider historic district guidelines, which often require specific window materials and designs to maintain neighborhood character. The region’s variable climate means choosing windows with strong insulation and storm resistance is key. Window installation projects typically require permits, and egress standards are enforced for safety. Planning around Frederick’s spring pollen or winter weather can help avoid project delays.

Helpful?
How much could your windows cost?

The Frederick, MD homeowners’ guide to window services

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