Business Details
28 Years
experience
Your Trusted Window & House Cleaning Experts in Bethesda, MD
Founded in 1998, Windows Only has built a reputation as a trusted provider of premium window, house, and roof cleaning services across Montgomery County, Maryland, and Northwest Washington, D.C. Our commitment to safety, professionalism, and exceptional customer service drives every project we undertake. With over 25 years of experience, we utilize modern techniques and eco-friendly solutions to deliver results that enhance property aesthetics and value. Our team of trained technicians prioritizes client satisfaction, offering a 100% satisfaction guarantee on all services. From residential window cleaning to commercial pressure washing, we combine technical expertise with personalized service to meet diverse customer needs.Annual training ensures our staff remains proficient in the latest safety protocols and cleaning technologies. Customer testimonials underscore our reliability, attention to detail, and consistent quality. As a locally owned business, we maintain deep ties to the communities we serve, fostering long-term relationships through integrity and performance. Our transparent communication and hassle-free processfrom free estimates to post-service follow-upreflect our dedication to client convenience. By adhering to rigorous standards and maintaining full insurance and bonding, we provide peace of mind alongside immaculate results.
Services
Window Cleaning
House Washing
Power Washing
Roof Cleaning
Gutter Cleaning
Details
- Year established: 1998
Highlights and features
- 25+ years of specialized expertise in residential and commercial window cleaning
- Fully insured & bonded for client protection and peace of mind
- 100% satisfaction guarantee with no payment required for unsatisfied jobs
- Modern low-pressure equipment ensures safe, effective cleaning for all surfaces
- Eco-friendly cleaning solutions that protect both properties and the environment
What people say
Extremely professional
Spotless windows
Courteous and efficient
Highly recommend
Superb results
Services
Window Cleaning
Our professional window cleaning service maintains pristine glass surfaces for residential and commercial properties. Using gentle yet effective techniques, we remove dirt, pollen, and streaks without damaging screens or fixtures. Clients appreciate our attention to detail, including cleaning chandeliers and specialty glass upon request. With 25 years of experience, we combine proven methods with modern equipment to deliver streak-free results while prioritizing safety and minimizing disruption.
House Washing
Exterior house washing removes built-up grime, mildew, and environmental pollutants from siding, brick, and stucco surfaces. Our low-pressure system safely restores curb appeal without harming paint or landscaping. We recommend combining this service with window cleaning for comprehensive property maintenance. Environmentally conscious solutions protect plant life while achieving a fresh, like-new appearance that lasts two to three years with minimal upkeep.
Power Washing
Power washing eliminates stubborn stains from driveways, patios, and walkways using adjustable pressure settings for surface-specific care. Our crews use biodegradable cleaning agents to dissolve organic matter while protecting nearby vegetation. The service includes degreasing options for oil stains and customizable pressure-only cleaning for sensitive applications, ensuring safe, thorough results for both residential and commercial properties.
Roof Cleaning
Roof cleaning removes algae and lichen buildup without invasive pressure techniques. A specialized solution safely kills organic growth, extending roof lifespan by preventing shingle deterioration. The process includes landscaping protection and typically requires no homeowner presence, with results lasting three to five years. This service combines technical expertise with preventive maintenance to preserve structural integrity.
Gutter Cleaning
Gutter cleaning services ensure proper water drainage by removing debris that causes blockages and water damage. Our technicians inspect downspouts and drainage systems while clearing gutters, preventing potential roof and foundation issues. The process integrates with exterior cleaning packages, offering a comprehensive approach to property maintenance that protects long-term structural health and appearance.
People
Seth Fensterstock
Founder
Seth founded Windows Only in 1998 after identifying quality gaps in the window cleaning industry. He remains actively involved in operations, emphasizing safety, training, and client communication.
Kate Fensterstock
Office Manager
Kate joined Windows Only in 2014, managing administrative operations and client relations. She ensures seamless scheduling and maintains the company's community-focused business approach.
Emanuel
Lead Technician
Emanuel provides expert cleaning services with consistent attention to detail, earning frequent client praise for professionalism and thorough workmanship across power washing and window cleaning projects.
Manuel
Technician
Manuel performs residential cleaning services with reliability and care, noted for punctuality and efficient execution while maintaining courteous client interactions during service delivery.
Questions
What services does Windows Only offer?
We specialize in window cleaning, house washing, power washing, roof cleaning, and gutter cleaning for residential and commercial properties in Montgomery County and Washington, D.C.
Are your services insured?
Yes, we maintain full insurance and bonding coverage to protect clients and ensure professional accountability for every service we provide.
How often should I schedule window cleaning?
Most homeowners opt for annual or bi-annual cleanings. We recommend scheduling based on environmental factors like tree coverage and local pollen levels.
Do you work in my area?
We serve over 30 communities including Bethesda, Rockville, Chevy Chase, and Silver Spring. Check our areas served list for specific location details.
What payment options are available?
Payments can be made via major credit cards or direct bank transfers. We provide detailed invoices and accept pre-arranged payment plans.
How do I schedule an appointment?
Request a free estimate online or contact us directly at (301) 654-0853. Our team will coordinate a convenient service date based on your availability.
Reviews (2)
Danny Chang
Sep 15, 2021
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Positive:Professionalism,Punctuality,Quality
Seth and Manuel were early, thorough, professional, and efficient. Our house has never looked better and we cant tell whether the windows have screens or not because theyre so clean! Thank you!
Services:Window cleaning,Power/pressure washing
Seth and Manuel were early, thorough, professional, and efficient. Our house has never looked better and we cant tell whether the windows have screens or not because theyre so clean! Thank you!
Services:Window cleaning,Power/pressure washing
Ashley Merrill
Apr 23, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
I had a phenomenal experience with Windows Only. They are reasonably priced, prompt, professional, friendly, and did a fantastic job. They were not at all intrusive and were true experts in handling our 80 year old windows with care. Our house is so much brighter. I recommend Windows Only without reservation.
Service:Window cleaning
I had a phenomenal experience with Windows Only. They are reasonably priced, prompt, professional, friendly, and did a fantastic job. They were not at all intrusive and were true experts in handling our 80 year old windows with care. Our house is so much brighter. I recommend Windows Only without reservation.
Service:Window cleaning
