Windows and Doors Replacement Services

Your Expert Windows and Doors Contractors

Serving Ellicott City & Surrounding Maryland Areas

Contact Us

to Schedule a Consultation!

410-390-0300

window repair in maryland

Energy-Efficient Solutions for Maryland Homes

Premium Window and Doors Replacement Services in Maryland

Transform your home with natural light, improved energy efficiency, and well-regulated ventilation through our quality window solutions. Alpha Design Services is your trusted partner in elevating every aspect of your home. Our expert team specializes in window replacement/installation, serving the communities of:

and nearby cities within the state.
You can count on our remodeling experts to provide guidance in selecting energy-efficient residential windows that offer convenient ventilation, easy maintenance, and abundant natural light.
window repair in maryland
vinyl & fiberglass window frame installation maryland
vinyl & fiberglass window frame installation maryland

Professional Window Solutions for Style and Function

Our energy-efficient windows are thoughtfully designed to enhance your home’s comfort, ventilation, and curb appeal. By allowing in more natural light while minimizing energy loss, our windows help reduce your utility bills and create a brighter, more welcoming living space. Choose from a wide variety of window styles, materials, and finishes to match your personal taste and architectural style.

Our window services include:

When choosing windows for your Maryland home, it’s important to select materials that can handle humid summers and cold winters. Vinyl windows are a top choice for their durability, energy efficiency, and low maintenance. They provide excellent insulation, helping you stay comfortable while reducing energy costs. With a wide range of styles and finishes, vinyl windows offer both performance and visual appeal. Schedule a free consultation with Alpha Design Services to explore the best replacement window options for your home.

professional siding for maryland house

Door Solutions to Complement Your Home’s Aesthetics

At Alpha Design Services, we specialize in expert door replacement, offering a wide range of styles that combine security, functionality, and aesthetic appeal. Whether you’re upgrading your entryway or enhancing interior spaces, our professional installation services ensure a perfect door type for your aesthetic and needs.

​In Maryland, fiberglass entry doors have become the preferred choice for homeowners seeking a balance of beauty, durability, and energy efficiency. These doors closely mimic the appearance of authentic wood, offering various textures, along with a wide range of stain and paint options. Unlike wood, fiberglass doors do not shrink, warp, split, crack, or delaminate, making them ideal for Maryland’s diverse climate.

Aside from fiberglass, we also do the following replacements:

Not sure which door is right for your home? Contact us today for a free consultation and we’ll help you choose the perfect option to fit your style and needs.

professional siding for maryland house

Is It Time to Replace Your Windows and Doors?

Not every scuff or foggy pane means it’s time for a full replacement. In fact, some common issues—like condensation or cosmetic wear—are completely normal and can be resolved with simple maintenance. But others, such as water damage or structural problems, require prompt attention. Here’s how to tell the difference.

Windows

Condensation between glass panes

Indicates seal failure and reduced energy efficiency.

Water stains, leaks, or soft/rotting wood

Could mean hidden moisture damage—time to replace.

Drafts near the window frame

May be due to worn seals or poor insulation.

Difficulty opening, closing, or locking


Could be from warped frames, balance failure, or aging hardware.

Noticeable outside noise

Poor sound insulation may signal failing seals or single-pane glass.

Cracked, broken, or foggy glass

A safety issue and energy concern—often requires replacement.

Chipped paint, dirty weatherstripping, or tarnished hardware


Cosmetic—can usually be addressed with simple upkeep.

Windows over 20 years old


Modern windows offer improved insulation and features; older ones may be inefficient.

Doors

Visible gaps around the door or frame

Leads to drafts and loss of energy efficiency.

Water damage, stains, or warping


Especially common in wood doors—can compromise structure.

Loose, broken, or rusty hardware


Often fixable, but if door won’t close or lock securely, replacement may be safer.

Difficult to open, close, or lock


May be due to warping, settling, or faulty hinges/locks.

Increased outdoor noise


Indicates poor insulation or degraded weatherstripping.  

Peeling paint, dented panels, or faded finish


Cosmetic, but could lower curb appeal.

Cracks or damage to the door slab or frame


Structural concerns = likely time for replacement.

Front door older than 15–20 years


Modern options are more energy efficient, secure, and stylish.

Need more guidance to assess? If you’re in Maryland area, ADS can help.
Serving Howard County, Baltimore County, Frederick County, Carroll County,

Anne Arundel County, Montgomery County and Prince George’s County.

Frequently Asked Questions (FAQ)

While we don’t list fixed prices online, the final cost depends on things like the type of product you choose, the materials, and whether there are any structural updates needed during installation. For example, a basic vinyl window swap will differ significantly in scope (and price) compared to installing a custom-sized entry door with sidelights. Energy-efficient features and hardware upgrades can also impact your total investment. We’re happy to offer tailored estimates based on your home and preferences.

In most cases, replacing a standard window is less involved than a door — especially if the door is a front entry or includes glass panels or sidelights. That said, it really depends on the specifics. In Maryland homes, some doors require custom framing or weatherproofing, which can increase complexity. We’ll help you weigh your options with our consultation.

We start by measuring everything carefully and making sure your Maryland home is protected during the removal. After the old window is taken out, we prep the space, install the new unit, and make sure it’s sealed, leveled, and properly insulated. Once everything’s secure, we finish the trim and clean up so you’re left with a flawless result. Our Ellicott City crew works efficiently, with minimal disruption.

High-quality products typically include:

∙ Double or triple-pane glass with argon gas for insulation
∙ Low-E coatings to improve energy efficiency
∙ Durable materials like fiberglass or composite frames
∙ Multi-point locking systems for added security
∙ Long-term manufacturer warranties

We guide clients through trusted product lines that are designed for both energy efficiency and long-term performance in Maryland’s climate.

We Are Proud of Our Reviews

We invite you to explore what our satisfied clients have to say about our top-rated roofing services and seamless remodeling process.

Transform Your Home
into a Bright and Inviting Space

Enhance natural light, energy efficiency, and ventilation with Alpha Design Services. Serving Ellicott City, Columbia, Rockville, and surrounding areas with top-quality window solutions. Contact us for a free consultation today.