4.5 
145 *The Angi rating for Window And Door Contracting companies in Conowingo, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window And Door Contracting needs.
*The HomeAdvisor rating for Window And Door Contracting companies in Conowingo, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window And Door Contracting needs.
Last update on March 03, 2026
Serving Conowingo, MD and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"The guys from Home Genius (Gabriela mena and her partner) the installers were very thorough and knowledgeable. My new windows look amazing. I’m glad to have chosen this company for my windows."
+78
Serving Conowingo, MD and surrounding areas
Approved
In business since 2017
Free estimates
Warranties offered
"Daryl and Nick were true professionals and friendly. They showed up on time, worked efficiently and cleaned up as they went. They installed our front door, sidelites, a transom and a storm door. Everything looks amazing!! I highly recommend this company!"
+89
Serving Conowingo, MD and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1992
Free estimates
Warranties offered
"Installed 5 windows, a bay window and a door. Very quick and efficient workers. They were on time on a very cold, sleety, day"
+24
Serving Conowingo, MD and surrounding areas
Approved (Corporate)
In business since 1992
Free estimates
Emergency services offered
"Pups replaced all 12 windows in my 1957 split level in College Park with quality windows for a good price. The original windows had a unique frame that presented some challenges that the crew worked through easily. The sales rep and crew were all very professional. I recommend them."
+9
Serving Conowingo, MD and surrounding areas
Approved
In business since 1999
Free estimates
Credit card accepted
"I am looking for job and I do roofing and siding."
Serving Conowingo, MD and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Warranties offered
"Their sales team was really polite and respectful. Their installation crew did a great job and cleaned up after themselves really well. I was really pleased with the overall experience."
+55
Serving Conowingo, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1995
Free estimates
Credit card accepted
"Always Waterproofing did a fabulous job on installing an egress window in my basement. They ran into an unforeseen pipe and ended up moving it and doing additional drywall work. I would highly recommend them for any projects. Professional, fair pricing and communicative."
Serving Conowingo, MD and surrounding areas
Approved (Corporate)
In business since 1991
Credit card accepted
Offers commercial services
"My name is Jason Haslbeck and I live in Chester County, PA. My wife and I have used Castle Windows for the replacement of all our windows, a new front door and now a new custom French Door slider (three separate project installations). Our sales representative, Roberto Munoz, has been an absolute pleasure to work with for all of our installations. Their customer service is excellent and their products are the best in the industry. Their lifetime warranty is legitimate and very valuable. Due to the Corona Virus, our latest project design consultation (French Doors) was done over the telephone using a ZOOM application. Very convenient technology and the presentation was very professional. On a personal note, our sales representative (Roberto) is a very faith based, honest human being and we have never been happier with a contractor or sales representative. I would highly recommend asking for Roberto Munoz as your sales representative as he is very knowledgeable, professional and courteous. Overall, from my experiences, Castle Windows is the best window and door company in the region. We did extensive research in comparing them to Pella, Anderson and other companies and Castle's product quality, installation and pricing was the best value by far. I would normally never take time out of my day to write a review, but my experience with Castle Windows (and Roberto Munoz) is one that deserves recognition. Jason & Hope Haslbeck Chester County, PA"
+13
Serving Conowingo, MD and surrounding areas
Approved (Corporate)
In business since 2007
Credit card accepted
Offers commercial services
"They were not able to fill our door space, and wanted us to make too many compromises"
Serving Conowingo, MD and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"I had rotten wood above a transom window on my front door that I needed to be fixed quickly. Generations was extremely responsive and got the job done much sooner than I anticipated. They even came out to provide an estimate late in the evening to fit my schedule. The job was completed as requested for a reasonable price. I only regret that I don't live in the area anymore; I would use them in the future if I did."
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