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Introduction: Shanco provides unparalleled exterior workmanship and home improvement services in Maryland, DC, and Northern Virginia. We’ve been providing excellent home services (including windows/doors, gutters, siding, roofing and more) from our offices in Gaithersburg, MD and Lorton, VA for 28 years!

Hired 1 time

25 employees

30 years in business

Payment methods

Check, Credit card

Social media

Facebook, Instagram

Featured Projects

7 photos

Window type

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Customers rated this pro highly for professionalism, work quality, and responsiveness.

Very good 4.5

11 reviews


Read reviews that mention:

Thumbtack Customer

Fantastic service. Shanco was hired to replace windows and their rsponse and service has been amazing. Be sure to ask for Dan Haske. He is knowledgable and responsive. If you are looking for a reliable roofing, siding and window company, Shanco is highly recommended.
Jan 30, 2020
Review from Google
Kerri H.

Siding Installation

I worked with Dillon and his team to receive a quote on siding work. Although Dillon was super nice and responsive, I was shocked to find his team on my roof doing their own personal assessment of it’s condition. They told me about their roofing work and suggested I let me neighbors know about their company. I couldn’t believe that my request, as the customer, for siding work was completely pushed to the side in order for them to put their interests first. I did not use this company after that. However, I was able to express my concerns to Dillon, and he was extremely apologetic and receptive to my feedback. I hope the team pays attention to the customer going forward.
Apr 16, 2020
Thumbtack Customer

I had two 9 foot sliding glass doors replaced. The new doors are beautiful thank you Steve, James and crew. I had water damage from the previous doors. The Crew fixed the damage replaced all the subflooring that was damaged. The crew was on time they cleaned after them selves. I had a few estimates from other companies so I knew the price was fair. I had the same pleasant experience when they replaced my roof. I will be back for my windows and siding in the future. Thanks
Shanco's reply
Jessica, Thank you for your kind words! We are happy that we were able to provide excellent service. Please let us know if you have any questions. -Shanco
Apr 19, 2019
Review from Google
Thumbtack Customer

Extremely professional, quick, great job on the clean up. Our house was covered in green sheathing so as not to damage plants or the deck. No other homeowners have had that when replacing their roof. Fair price right in the middle.
Mar 4, 2020
Review from Google
Thumbtack Customer

I HIGHLY recommend Shanco for a new roof replacement! They were very knowledgeable, professional, and effiecent when it came to replacing my roof. Being as I live in a HOA neighborhood, they knew exactly what kind of shingles I needed to match all of my neighbor's roof. They have more than reasonable prices and timeline of the project was outstanding! I worked with Steve Harmon in Residential Sales. He is a very laid back guy who is really easy to talk too and very imformative regarding the entire process. Lastly, I do not write many reviews online, but when it comes to a big purchase/investment into your home, I felt it was a must to share my experiences with Shanco Companies. Again, thank you Shanco and Steve, I will recommend you to all of my neighbor's and friends!
Mar 3, 2020
Review from Google


  • What should the customer know about your pricing (e.g., discounts, fees)?

    Our pricing is straight-forward. We don't sit down at a table and hard-close you on an overpriced project. We're a perfect balance where price and quality meet.

  • What is your typical process for working with a new customer?

    Once contact has been made, we schedule a time to take a look at the project. We work with you to determine what the best solution is (depending on your situation), then we give you a price. Anyone that we send to your home is an EXPERT in their field, and can answer any questions you can throw at them.

  • What education and/or training do you have that relates to your work?

    We are GAF MASTER ELITE certified installers, given to less than 2% of contracting companies. We have won the triple excellence award 3 years in a row and are widely considered as one of the best exterior specialists in the DMV area. We attend Continuing Education courses to stay updated on the best and most efficient methods of install, and have worked with some of the most knowledgeable experts in our field.

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