Exterior Remodeling for Homeowners in Central Maryland

Why Homeowners Make the Diligent Choice

Homeowners in Mount Airy, Maryland and surrounding areas come to us when they’re concerned about their roofing, siding, windows, doors, and gutters. They rely on our reputation as a friendly, family-owned and operated business with more than a decade of experience. 

Covering All Sides

Your home is your biggest investment – and you need to take care of all of its sides. Right now, you may be worried about an older roof, embarrassed by your windows and doors, tired of your old siding, or nervous about your leaky gutters. Whatever your exterior remodeling needs, Diligent Exterior Remodeling has you covered with the care and expertise to get your job done right.

Contact us today for a free estimate and discover the difference in quality and service that Diligent Exterior Remodeling provides.



Windows & Doors


The Diligent Story

Meet Todd, Seth and Andrew, lifelong friends who share a passion for building and construction. From a young age, they spent countless hours designing and constructing projects including treehouses to forts and more. As they grew, their love for building never wavered, and they turned their passion into a business. With years of experience and a shared commitment to quality workmanship, they founded Diligent to provide exterior renovations to local homeowners. Through dedication to the industry and attention to detail, Todd, Seth and Andrew have quickly become trusted names in the community. 

Together, they’ve not only built a thriving business but also strengthened their lifelong friendships.

Why Choose Diligent

Working with Diligent, clients have come to expect exceptional workmanship for their roofing, siding, windows, doors, and gutters. They like our transparent pricing and our friendly service before, during, and after their projects. Clients appreciate the respect we show their family, homes, and neighborhood.

Flexible Financing Options

Exterior remodeling projects can be a significant investment. To support our clients, we’re pleased to offer financing options, which provide reliable interest rates and payment plans to suit almost any timeframe and budget. Clients get the exterior renovations they need without breaking the bank.

Military Discount & Offers

We appreciate our military for their service and sacrifice, and understand the unique challenges military families face in maintaining their homes. We are committed to providing top-quality services to help military families improve and maintain their homes, and often offer special discounts as a way to show their appreciation and support.


Welcome to the Project Showcase of Diligent Exterior Remodeling, your visual guide to our comprehensive exterior transformations.
Here, you can explore our finest works in roofingsidinggutterswindows, and doors through compelling before and after images.

Before After
Before After
Before After
Before After

Visualize Your Project

Discover which design, style, or color looks best for your home exterior project using our design tools.

James Hardie Color Visualizer

James Hardie's Home Color Tool allows you to experiment with colors on a variety of home styles. Click to open visualizer.

CertainTeed Colorview

ColorView makes selecting and coordinating siding, roofing, and trim easy & fun. Click to open visualizer.

Mastic Visualizer

Select an interactive image and start designing a home with Mastic colors, products, and palettes.

ProVia Home Visualizer

ProVia's Home Visualizer allows you to try different styles of doors & windows. Click to open visualizer.

Royal Building Products

Choose from one of Royal's design tools to design your dream home. Click to open visualizer.

Exterior Remodeling Resources


How to Prepare Your Windows for the Fall Season

As the leaves start to change and the air becomes crisp, autumn settles in and brings a new set of requirements for home maintenance. One of the most overlooked yet crucial parts of home prep for the fall season is your windows.

Read More »

Schedule an Appointment

Contact Us

Diligent Exterior Remodeling
6336 Davis Rd
Mt Airy, MD 21771
Phone: (301) 238-5113