The Best Window Installers in Rockville, MD

Compare the highest-rated windows professionals in Rockville, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Thompson Creek Window Company

4.7
(1 reviews)
Verified

A leading, full-service window replacement company known for its high-quality, energy-efficient products and professional installation. They are a large regional provider with a strong reputation for customer service and offer a robust warranty on their work and products.

12100 Nebel St, Rockville, MD 20852

Specialties & Features

Energy-efficient window replacement
Custom window solutions
New construction windows

Business Information

Years in Business:40 years
Licensed:Yes
Insured:Yes
#2

Window Nation

4.8
(800 reviews)
Verified

A highly-rated national company with a strong local presence, specializing in a wide variety of window styles and materials. They are known for their free in-home consultations, lifetime warranty, and focus on both replacement and new installation projects.

(Serves Rockville from local offices)

Specialties & Features

Residential window replacement
Vinyl and composite windows
Storm and security windows

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Apex Window Werks

4.9
(250 reviews)
Verified

A premier provider specializing in high-end window repair, restoration, and replacement. They are particularly noted for their expertise in repairing hard-to-find parts for older or specialty windows and for their meticulous attention to detail, serving both residential and commercial clients in the DC metro area.

(Serves Rockville from their Bethesda location)

Specialties & Features

Window repair services
Custom window solutions
Historic window restoration

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Windows Contractors in Rockville

The window market in Rockville, Maryland, is competitive and service-oriented, reflecting the city's mix of historic homes, established suburban neighborhoods, and new construction. The average quality of providers is high, with several nationally recognized and long-standing local companies vying for business. Homeowners in Rockville are often discerning, showing strong demand for **energy-efficient windows** to manage both summer heat and winter cold, as well as for custom solutions that match the character of older homes. **Competition** is fierce, which generally benefits the consumer through competitive pricing and a focus on customer service. Typical pricing for a full window replacement project on a standard home can range from **$7,500 to $20,000+,** heavily dependent on the number of windows, the materials chosen (vinyl, fiberglass, wood), and the complexity of the installation. Repair services for issues like seal failure or damaged frames are a significant part of the market, with many companies offering these services as a cost-effective alternative to full replacement.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Rockville regulations and climate

Frequently Asked Questions About Windows in Rockville

Get answers to common questions about windows services in Rockville, Maryland.

1What is the typical cost range for a full window replacement on a home in Rockville, MD?

In Rockville, the cost for a full window replacement typically ranges from $600 to $1,200 per window installed, depending on the window style, material (vinyl, wood, fiberglass), and energy efficiency features. This regional pricing accounts for local labor costs and the specific demands of Maryland's climate, which requires durable, energy-efficient windows to handle both humid summers and cold winters. Always get itemized quotes from several licensed local contractors to compare.

2Are there specific building codes or permits required for window replacement in Rockville?

Yes, Rockville follows the Montgomery County Building Code, which typically requires a permit for any structural window replacement that alters the rough opening. However, a simple "like-for-like" replacement often does not require a permit if no structural changes are made. It is crucial to hire a contractor familiar with local Rockville and Montgomery County regulations to ensure compliance, especially for historic district homes where additional design review may apply.

3What is the best time of year to schedule a window installation in Rockville's climate?

The ideal times are late spring (April-May) and early fall (September-October). These periods offer mild, dry weather in Maryland, which is optimal for installation and allows for proper sealing of the window frames. Scheduling in the off-peak seasons can also lead to better contractor availability and potential discounts, avoiding the high-demand summer months and the unpredictable winter conditions that can complicate installations.

4How do I choose a reliable window installation contractor in Rockville?

Prioritize contractors who are licensed, insured, and have a strong local reputation in Montgomery County. Check for membership in organizations like the Better Business Bureau and look for online reviews specific to Rockville projects. Always ask for local references and proof of insurance, and ensure they provide a detailed, written contract. A trustworthy local installer will be knowledgeable about Rockville's specific energy codes and historic district guidelines if applicable.

5What energy efficiency features are most important for windows in the Rockville area?

Given Maryland's variable climate, look for windows with a low U-factor (for winter heat retention) and a low Solar Heat Gain Coefficient (SHGC) to block summer heat. Double-pane Low-E argon gas-filled windows are the standard recommendation for Rockville homes. Also, ensure the installation includes proper air sealing to prevent drafts, which is critical for both comfort and meeting local energy code requirements for Montgomery County.