
Get matched with top window pros in Frederick, MD
There are 48 highly-rated local window pros.
Need a pro for your window service project in Frederick, MD?
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Verified Reviews for Window Service pros in Frederick, MD
*The Angi rating for Window Service companies in Frederick, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
*The HomeAdvisor rating for Window Service companies in Frederick, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
Last update on November 30, 2025
Find Window pros in Frederick
VELUX America
VELUX America
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.
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Peak Custom Remodeling Corporation
Peak Custom Remodeling Corporation
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

Clifton Contracting
Clifton Contracting
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
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

Nova Exteriors Inc
Nova Exteriors Inc
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
West Shore Home Mechanicsburg
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
DZ Renovation, LLC
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

General Construction Doctors
General Construction Doctors
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.

Renewal by Andersen
Renewal by Andersen
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
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
West Shore Home Baltimore
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.

JULU Construction, LLC
JULU Construction, LLC
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
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.
•Bigger windows mean more natural light in your space and better views of the outdoors. Learn about the cost to enlarge windows and what affects your total.

If you're hoping to add a touch of timeless style to your windows, take a look at the cost of stained glass windows and what affects installation costs.
•Find out the cost to replace weatherstripping. Learn about material and labor costs, cost-saving tips, and what impacts your total price.

Keep the cold out and warmth in. Learn how to glaze your windows in under 60 minutes with this simple, step-by-step guide.
•Soundproof windows cost between $300 and $1,500, but the exact price will depend on the method and materials used. Explore this guide to learn more.

Your home may have vintage windows or old windows that no longer function. Learn about the types of old windows and when to replace them.
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