Delaware's #1 Window Cleaning and Exterior Cleaning Services

Window Cleaning in Delaware

Window Cleaning Delaware

Welcome to East Coast Window Cleaning
We’re Delaware’s leading exterior and window cleaning company, specializing in crystal-clear windows and complete exterior cleaning solutions for your home or business. From pressure washing and roof cleaning to gutters, pavers, and dryer vents, we deliver results that protect, enhance, and add curb appeal.

Years of Experience
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5-star Google Reviews
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Satisfaction Guarantee
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Why go anywhere else? Request your quote today and experience the hands-on service our customers are raving about.

Call us for your free estimate for window cleaning in Delaware.

Our Core Services

We handle both residential and commercial exterior cleaning, tailoring our approach to your property’s unique needs. We always choose the safest techniques and detergents to protect you and your family.

Window Cleaning

We clean everything from storm windows and sliders to French panes, following a detailed eight-step process that includes thorough cleaning, scrubbing, squeegeeing, and carefully drying frames and tracks for a spotless finish.

We leave your windows spotless and streak-free.

Power Washing

We soft wash homes, restore driveways, decks, patios, brick, and sidewalks, with custom settings to clean deeply while protecting every surface.

Where necessary, our power washing services punch up the efficacy with hot water treatments. This is highly effective at removing oil and grease.

Holiday Lighting Installation

Our all-inclusive lighting service covers everything from the initial design and custom-cut installation to ongoing maintenance, seasonal takedown, and secure storage.

All you need to do is give us an idea of what you’re looking for, and we’ll take it from there. We’ll provide you with a mockup first, allowing you to make adjustments to the design as you like.

Permanent Lighting Solutions

Enjoy stunning curb appeal all year long with our professional permanent lighting systems. Designed to last up to 15 years, these custom-fitted LED lights can be controlled right from your phone with an easy-to-use app. Change colors and patterns for every season or special occasion; from Christmas and Halloween to Fourth of July and more.

Residential and Commercial Exterior Cleaning
in Sussex County

Whether you are a homeowner aiming to enhance curb appeal or a business owner striving to maintain a polished professional image, East Coast Window Cleaning provides comprehensive exterior cleaning solutions to keep your property looking its best.

Window Cleaning Delaware

Residential Services

Before we start, we walk through your property, protect plants, and move outdoor furniture. Once we’re done, we check in with you to make sure everything meets your expectations.

Window Cleaning Delaware

Commercial Services

We can schedule cleanings after business hours, coordinate with property managers, and handle large complexes or multi-site contracts smoothly.

How Our Estimates Work Easy, Transparent, and Tailored to You

Here’s what to expect when you get in touch.

Request a Free Estimate

Start by requesting a free estimate online or over the phone. Homes under 3,500 sq. ft. can usually be quoted virtually, while larger or unique properties may require a quick site visit.

Schedule an Appointment

We’ll schedule a convenient time for your service and confirm any special requests.

Pre-Service Preparation

Before we arrive, we’ll ask you to secure pets, move valuables, and prepare furniture if needed. Prefer not to? We can handle it for a small fee.

Service Execution

Our trained team completes the service using professional-grade equipment and proven methods while taking every precaution to protect your property.

Final Walkthrough & Satisfaction Check

Once the work is complete, we’ll walk the property with you to ensure everything meets your expectations. Your satisfaction is always guaranteed.

Optional Maintenance Plans

For long-term results, ask about our maintenance plans that keep your property looking its best year-round.

Get a Free Quote From Delaware’s Most Detail-Oriented
Exterior and Window Cleaning Pros

Why Choose
East Coast Window Cleaning?

We’ve got a ton of reasons for you to hire us.

Licensed, Insured, and Veteran-Owned

We carry over $1 million in coverage and back every service with decades of experience.

25+ Years of Experience

We’ve been serving homes and businesses across Delaware since 2000.

100% Satisfaction Guarantee

Roof cleaning comes with a three-year warranty, and all services include a seven-day, no-questions guarantee. Not thrilled? We’ll come back for free.

Professional-Grade Equipment

We use purified water-fed poles, proportioned sprayers, and commercial belt-drive pressure washers for a flawless finish.

Eco-Friendly Options

Choose plant-safe, biodegradable cleaning solutions for peace of mind.

Discounts and Special Offers

  • 10% off when you bundle two services
  • 15% off for three or more
  • $50 off for first-time customers
  • 5% off for veterans
  • 15% off on multi-year lighting plans

Certified and Carefully Screened Team

Every technician is background-checked, drug-tested, and professionally certified. If we wouldn’t trust them in our own home, we won’t send them to yours.

Community-Minded

We’re BBB-accredited, active in the IWCA and Chamber of Commerce, and proud supporters of local charities. We even offer some non-profits free window and exterior cleaning in Delaware. 

Specialized Services Beyond the Basics

In addition to core cleaning, the team offers oxidation removal for siding, gutter polishing, paver sealing, and even solar panel cleaning, services that many competitors don’t provide.

What Our Customers Say

I highly recommend ECWC! Their whole team is professional and very accommodating to ensure that your experience and windows are perfect!
Response from the owner:Thank you for highlighting our team's professionalism and accommodation. We're glad you had a great experience.
I just had my windows cleaned by this company. This company is so helpful and accommodating. The team was polite and respectful and approached the job with detail and a commitment to doing the job well. I very much appreciate their professionalism and service. I would recommend them for all needing this service.
Response from the owner:Thank you so much, Ger, for the wonderful review and for trusting us with your home! 🌟

We’re thrilled to hear you found our team polite, respectful, and detail-oriented. We work hard to deliver a professional experience from start to finish, so it means a lot to know that came through during your interior and exterior window cleaning.

If you ever need anything in the future—whether it’s windows, screens, or any of our other services—please don’t hesitate to reach out. We truly appreciate your recommendation and look forward to serving you again!

– East Coast Window Cleaning 🧼💧
I was very pleased with the Christmas lights that were installed. The guys were professional and courteous. I’ve had many compliments on how beautiful it looks. I would highly recommend.
Response from the owner:Thank you so much, Jodi! We’re thrilled to hear you love your Christmas lights and that our team made the experience a great one. We truly appreciate your recommendation and are grateful for the opportunity to decorate your home this season! 🎄✨

highly recommend did an awesome job inside and out
Response from the owner:We’re grateful for your 5-star review, Brenda. Your satisfaction with our service is truly appreciated.
Excellent professional service.
Response from the owner:Thank you so much Rachel! We’re glad to hear you were pleased with our interior and exterior window cleaning service. We appreciate the kind words and look forward to helping you again soon!

Thanks,
Pete
ECWC
Professional personable efficient my house decorated in Christmas lights is exactly what the picture showed and exactly what I wanted. I definitely would hire them again. I did sign up for a 3-year contract and requested an estimate for power washing of the house in the spring. Very pleased with their service
Response from the owner:Your satisfaction with our service is valued. Delighted to have met your expectations.
From scheduling the appointment to the completion of the window cleaning the entire process was smooth and flawless. For the price of each window it included cleaning inside and out, the sill and outside frame. The window cleaners were knowledgeable and paid careful attention to detail. They're reasonably priced. I will definitely be scheduling a house wash and window cleaning next fall.
Response from the owner:Thank you for your review! We're glad you had a smooth experience. Looking forward to your next visit.
Great company. Team was professional and did a fantastic job. !!
Response from the owner:Thank you for your review. We're glad our team's professionalism met your expectations with our service.
Great job; the Christmas lights look fantastic. Thanks a lot.
Reasonable price, competent technicians and responsive customer service are just a few of the reasons to choose East Coast.
Response from the owner:Thank you for sharing your thoughts on our service. We value your feedback!

Frequently Asked Questions
FAQS

Yes, our exterior cleaning process is safe for pets and kids once surfaces are properly rinsed. We use carefully proportioned cleaning solutions and always rinse thoroughly to ensure safe walkability. Our team may recommend an extra rinse in high-traffic areas for added peace of mind.

No, we take multiple steps to protect your landscaping during the cleaning process. We pre-wet, cover, and re-rinse all plants and grass to dilute any possible chemical exposure, and in hot weather we may adjust scheduling to protect sensitive greenery.

Pricing depends on your property’s size, condition, and the type of surfaces being cleaned. We provide transparent, square-foot-based quotes with no hidden fees, so you’ll know exactly what to expect before scheduling.

No, you don’t need to be home as long as we have access to the necessary areas. We confirm all details with you beforehand and follow up afterward to ensure you’re 100% satisfied.

No, we use soft washing for siding, roofs, and other delicate surfaces. Our team customizes water pressure and solution strength for each material to avoid damage while still achieving a thorough clean.

Yes, we are fully insured for your peace of mind. We also use professional safety gear and proven techniques to protect your home, landscaping, and property features during every service.

We offer a 7-day satisfaction guarantee on all services. If you’re not happy, just call us within a week and we’ll come back to make it right—no hassle, no fine print.

Most exterior cleaning jobs are completed in just a few hours, depending on the scope. We provide an estimated timeframe with your quote and arrive on time to work efficiently without cutting corners.

Yes, we bring up to 250 gallons of water to every job site. We can also connect to your water supply if needed, and water use is always included in your quote.

We use water management practices to control runoff and keep your property safe. For larger jobs, we have a water reclamation system; for residential work, we control runoff with rinsing, bagged gutters, and smart scheduling.

Window Cleaning Delaware
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