---
title: "Capitolwindows — Window Sales & Installation | Houzz"
canonical_html_url: https://www.houzz.com/professionals/window-sales-and-installation/capitolwindows-pfvwus-pf~408286023
markdown_url: https://www.houzz.com/md/professionals/pf~408286023.md
entity_type: LocalBusiness
business_name: Capitolwindows
category: ["Window Sales & Installation"]
image: https://st.hzcdn.com/fimgs/6b13b93c09195fdf_1209-w400-h400-b0-p0--.jpg
address: "330 n stonestreet ave unit s rockville, Rockville, Maryland 22080, United States"
latitude: 39.2653
longitude: -77.638
phone: "(571) 992-6682"
website: http://www.capitolwindows.us
rating: 5
review_count: 1
last_updated: 2026-09-22
---

# Capitolwindows

Original Houzz profile: [Capitolwindows](https://www.houzz.com/professionals/window-sales-and-installation/capitolwindows-pfvwus-pf~408286023)

## Professional summary

- **Primary category:** Window Sales & Installation
- **Location:** Rockville, MD
- **Serves:** Columbia, Germantown, Silver Spring, Gaithersburg, Rockville, Bethesda, Potomac, Chevy Chase, Vienna, Alexandria, Arlington, Ashburn, Centerville, Chantilly, Fairfax, Falls Church, Herndon, Manassas, Maryland, Mclean, Reston, Sterling, Tysons Corner, Vienna Center, Virginia, Washington, Woodbridge
- **Houzz rating:** 5.0 out of 5 (1 review)

## About

We are a U.S.-based window and door company specializing in high-quality aluminum and PVC systems for residential and commercial projects.
With our own manufacturing partnerships in Turkey, we supply premium European-standard products at much more competitive prices than typical custom aluminum solutions available in the U.S.

We work directly with leading profile brands such as Reynaers, Alumil, and ASAŞ, ensuring exceptional durability, modern design, and strong energy performance.

Because we manage both the importing and installation process locally, our clients receive custom, project-specific solutions with consistent quality control from start to finish.

Our services include:

Custom aluminum window & door systems

Sliding doors, bifold doors, large glass openings

PVC window & door packages

Full take-offs and project quotations for new construction

Professional on-site installation

Our mission is to provide homeowners, builders, and contractors with European-quality solutions at pricing that makes custom projects more achievable—all delivered by a fully U.S.-based team.

If you're looking for premium windows and doors with exceptional value, we’d be happy to discuss your project.

### Services Provided

- Custom Windows
- Window Replacement
- Window Installation
- Window Sales
- Custom Exterior Doors
- Door Sales
- Sliding Door Installation

### Areas Served

- Columbia
- Germantown
- Silver Spring
- Gaithersburg
- Rockville
- Bethesda
- Potomac
- Chevy Chase
- Vienna
- Alexandria
- Arlington
- Ashburn
- Centerville
- Chantilly
- Fairfax
- Falls Church
- Herndon
- Manassas
- Maryland
- Mclean
- Reston
- Sterling
- Tysons Corner
- Vienna Center
- Virginia
- Washington
- Woodbridge

### Typical Job Cost

$2,500 - 1 million

All of our window and door systems are fully custom and priced according to the specific requirements of each project.

Costs vary based on architectural design, profile system, glass specifications, opening sizes, and installation needs.

We provide detailed project-based quotations after reviewing plans, measurements, and material preferences to ensure the best solution for each home or development.

## Business Details

| Field | Value |
| --- | --- |
| Business Name | Capitolwindows |
| Address | 330 n stonestreet ave unit s rockville, Rockville, Maryland 22080, United States |
| Phone | (571) 992-6682 |
| Website | http://www.capitolwindows.us |

## Contact

- **Houzz profile:** [Capitolwindows](https://www.houzz.com/professionals/window-sales-and-installation/capitolwindows-pfvwus-pf~408286023)
- **Website:** http://www.capitolwindows.us
- **Phone:** (571) 992-6682

## Reviews

**Overall rating: 5.0 out of 5 — 1 review**

*Aspect averages:*
- Work Quality: 50.0
- Communication: 50.0
- Value: 50.0

### All 1 review

**★★★★★ — Omer Zirekoglu, Nov. 2025**

> I had a great experience working with Capitol Windows. The team was professional, punctual, and very respectful of my home. Their workmanship was excellent, and they completed everything exactly as promised. Communication was clear, pricing was fair, and the overall quality exceeded my expectations. I would confidently recommend them to anyone looking for reliable window services

## Selected projects

- [6201 bethesda](https://www.houzz.com/hznb/projects/6201-bethesda-pj-vj~7732564)
  - Location: Bethesda, Maryland
  - Photos: 4

[See all 1 project](https://www.houzz.com/professionals/window-sales-and-installation/capitolwindows-pfvwus-pf~408286023)

---

*Source: Houzz professional profile. Reflects the profile as of 2026-09-22.*