Your Source for Exterior Remodeling in Mt. Airy, Frederick & Surrounding DC Metro Areas

Remodeling can be a hassle, forcing you to juggle numerous different contractors to get one job done. Our mission at Diligent Exterior Remodeling is to meet all your exterior remodeling needs with a single phone call. 

Our business is family-owned and operated in Mt. Airy, MD. We are committed to delivering the highest-quality work throughout the D.C. metro area, including Frederick, Westminster, Sykesville, Columbia, and all surrounding areas.

We specialize in one-stop exterior remodeling, while providing excellent customer service from first call to final delivery. Contact Diligent Exterior Remodeling today for a free virtual or in-home estimate.

Residential Services

roof replacement services

We are here to beautify and fortify your home while respecting your budget. Our dedicated team can provide many remodeling services while delivering the best brands in:

  • Roofing
  • Windows
  • Doors
  • Siding
  • Gutters

All these can work holistically to make your home safer, more attractive, and more valuable than ever. Call to discover how they can be tailored for you.

Roof Replacement


Repairing or renewing a roof is one of the best investments you can make. It leads to a healthier, happier home and several other rewarding benefits:

Increased Energy Performance

A strong roof helps protect the heat envelope of your home and lowers utility bills by reducing the need for heating.

Boost Curb Appeal and Resale Value

A well-fitted and maintained roof makes a home stand out proudly in the neighborhood and to potential buyers. A new roof is especially enticing and can boost your property’s resale value.

Shield Against Sickness

A healthy roof acts as a powerful barrier against insects, rodents, and other pests. It also stands between you and water damage issues such as mold and mildew.

The Luxury of Choice

Homeowners have plenty of practical and attractive options, ranging from metal and asphalt to tile and slate. Diligent Exterior Remodeling can customize these to provide the design you need.

We partner with industry-leading brands to deliver superior materials and make your dream roof a reality. Call us at (301) 238- 5113 to arrange a free consultation.


new house vinyl siding

Modern siding excels in visual appeal and powerful home protection to provide enduring value and return on investment. Some benefits include:

Robust Materials

Siding comes in many kinds, including fiber cement, vinyl, shingle, and insulated, and it can be applied horizontally or vertically. It can also provide an eco-friendly composition to complement its long-lasting installation.

Versatile Visuals

Multiple siding styles and colors make modern siding an attractive addition to your home. Organic effects like wood and stone can add a natural touch with none of the traditional maintenance, while complete color panels maintain their shade, even in prolonged sunlight.

Property Protection

Siding is a robust shield for your home against the elements by locking out water, staying firm in high wind, and providing fire resistance. Strong siding also prevents pests and mold from entering through your walls.

The many options we have available deliver true versatility that will enhance the exterior of your home while protecting everyone inside it. Contact Diligent Exterior Remodeling to learn more.



We provide windows in many styles and materials to suit your home’s look. All of them can help boost your home’s energy efficiency and lower your utility bills, along with other benefits: 

Breathe Easy

Our staff helps you decide which design and hardware work best to enhance your home’s aesthetic while effectively ventilating it.

Multiple Designs

Our many options include awning, garden, sliders, picture, casement, and double hung.

Improved Safety

The increased functionality of new windows makes them a more effective guard against illegal entry, providing peace of mind to protect you and your family.

Windows do a lot more than just let light in, so speak to Diligent Exterior Remodeling to ensure you’re getting all the advantages windows can provide.

Custom Doors


Your doors do a lot, from welcoming visitors to keeping the elements on the right side of the threshold. Diligent Exterior Remodeling can deliver an eye-catching and practical door you’ll be proud of.

Choose Your Look

Our customizable designs let homeowners choose the frame and pane combination that suits their tastes. 

Choose Your Model

Select from diverse installation styles like entry doors, patio doors, and storm doors.

Enhanced Security

Doors greatly complement windows as a sturdy shield against home invasions and robberies.

Doors also deliver the bonus of greater energy efficiency and elevated curb appeal. Call us at (301) 238- 5113 and let a team member explain all the ways your next door can combine style with function to beautify your home.


Gutters catch and redirect water away from your home to protect the structure and its foundations. Our team can address every aspect of gutter care, whether you need a partial replacement or entirely new hardware. We provide seamless solutions that will enhance your exterior and deliver reliable water management.

Our Products and Brands

We partner with the most respected names in the industry. Our links to these service leaders allow us to give customers the best in materials and warranties.

James Hardie Siding

America’s No. 1 siding delivers toughness and a 30-year warranty. Diligent Exterior Remodeling includes special offers on this brand that can provide hundreds of dollars in gift cards.

Harvey Building Products

Harvey has 60 years as a best-in-class provider of windows and doors. Their wide range of customizable options delivers the highest quality solutions, with either 10-year or lifetime warranties.

Evolve Stone

This state-of-the-art veneer technology applies 10x faster than natural stone, is a fraction of the weight, and allows moisture permeability to avoid holding moisture against your home.


The 14-time EnergyStar Partner of the Year delivers solutions that protect the environment through greater energy efficiency while providing products across the remodeling spectrum.

Slocomb Windows and Doors 

Slocomb is a leading provider of vinyl windows and doors for over 50 years. Their expertise translates to many styles, shapes, and sizes, with a wide color palette, grids, or hardware options.

Royal Building Products

Siding, roofing, and decking are just a few of the options available from Royal. Now in its 50th year of providing innovative and eye-catching solutions, including wood grain and brushed paint looks and a wide selection of PVC moldings and trim.


Diligent Exterior Remodeling holds CertainTeed’s ShingleMaster certification, allowing us to provide over 300 residential roofing options and extended warranty coverage.

You can count on performance, beauty, and value, no matter which of our favored brands you choose to install, because Diligent Exterior Remodeling insists on using only the finest materials for our customers. Contact us to decide which brand is best for you.

Diligent Exterior Remodeling Is the Best Team for Your Project

Diligent Exterior Remodeling Team

Our staff is committed to delivering the same levels of top-quality products and excellent customer service, no matter how big or small the job. We also offer 0% financing for 18 months to help you realize your remodeling goals. Contact Diligent Exterior Remodeling today to speak to an expert.