Business Details
48 Years
experience
Trusted Window Cleaning Services in Boulder, CO
Sonlight Window Cleaning has been a family-owned and operated business since 1978, serving the Boulder-Denver metro area from Denver to Fort Collins. Our team specializes in residential and commercial window cleaning, post-construction cleanup, pressure washing, and holiday lighting installations. We pride ourselves on delivering exceptional service through experienced crews who live in the communities we serve, including Boulder, Arvada, and Northeast Denver. Our commitment to quality includes cleaning screens, tracks, and frames as standard, with additional services like paint removal and skylight cleaning available.With over 350 5-star reviews, we emphasize customer satisfaction through flexible scheduling, transparent communication, and a 48-hour cancellation policy. Our holiday lighting division offers custom designs using commercial-grade LED lights, professional installation, and seasonal maintenance. We operate year-round, rescheduling only for extreme weather conditions, and maintain a minimum price of $150 for residential jobs and $100 for commercial projects.
Services
Residential Window Cleaning
Commercial Window Cleaning
Post-Construction Cleanup
Pressure Washing
Skylight Cleaning
Gutter Cleaning
Holiday Lighting Installation
Screen Cleaning
Paint Removal
Track & Frame Cleaning
Details
- Year established: 1978
Highlights and features
- We have over 45 years of experience in window cleaning and holiday lighting.
- Our team consists of certified professionals with deep local market knowledge.
- We guarantee 100% customer satisfaction with flexible scheduling options.
- Our services include post-construction cleanup and commercial high-rise cleaning.
- We maintain a 4.9-star rating with over 350 verified customer reviews.
What people say
Fantastic job
Professional and courteous
Highly recommend
Spotless windows
Reliable scheduling
Services
Residential Window Cleaning
Our residential window cleaning includes thorough interior and exterior cleaning, screen maintenance, track clearing, and frame wiping. We handle homes of all sizes across Denver-Boulder, using professional-grade tools to ensure streak-free results. Customers appreciate our attention to detail and flexible scheduling options.
Commercial Window Cleaning
We service commercial properties from storefronts to high-rises, maintaining professional appearances with minimal disruption. Our trained crews use specialized equipment for multi-story buildings. Clients value our reliability and competitive pricing structure starting at $100 per job.
Holiday Lighting Installation
Our holiday lighting service includes custom roofline, gutter, and tree installations using commercial-grade LED lights. We offer full-season maintenance and removal/storage services. Projects typically range from $900 to $1,500 depending on complexity and design requirements.
Post-Construction Clean
We remove construction residues including paint, glue, and silicon from windows and surfaces. This service prepares properties for occupancy by eliminating debris and ensuring clear, clean glass surfaces throughout new constructions.
Pressure Washing
Our pressure washing services restore property exteriors by cleaning siding, decks, and concrete surfaces. We use calibrated equipment to safely remove dirt and grime without damaging surfaces, improving curb appeal for residential and commercial clients.
Questions
Do I need to be present during window cleaning?
No, we don't require your presence. Provide access instructions and we'll handle the rest.
What is your cancellation policy?
We require 48-hour notice for non-emergency cancellations to reschedule effectively.
How do you handle bad weather?
We reschedule only for active precipitation, temperatures below 37°F, or winds above 50mph.
What areas do you service?
We cover Denver, Boulder, Fort Collins, Arvada, and surrounding Colorado communities.
Do you offer holiday lighting removal?
Yes, we provide full removal and storage services after the holiday season.
Reviews (5)
Lynn T.
Sep 02, 2021
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Nick did a great job on all the windows in our townhome! A smooth experience and he went above and beyond to take care of all the glass/screens/sills. Great service with no stress or concerns!
Andy P.
Aug 03, 2021
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I used Sonlight to clean the windows at a rental property and they did great. I used them to do the windows at my residence as well. I am out of their service area so got an extra $1 per window fee but it was still very competitive with other quotes I received. There was a small hiccup on cleaning the window tracks but they came back the next day and quickly fixed the situation. I will use them again going forward.
Keith L.
Feb 27, 2021
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Team did a great job on the windows. Had a slight scheduling problem but after calling the office, they got someone out as soon as they could and even offered a discount for the mixup. Love when business people understand the value of a happy/satisfied customer which clearly Sonlight does.
Mark M.
Nov 18, 2020
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If you're looking for a reliable, professional window cleaning service, I highly recommend Sonlight. Kelly and his team have been taking care of my 4-story office building in downtown Boulder for 20 years. The work is always completed in the best manner with courtesy to tenants as well as the public on exterior sidewalks. Kelly looks beyond the windows to make sure that all aspects of the building and property are in good shape. He has become a true friend to me and the property.
Lauren B.
Apr 08, 2019
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These guys were great. They responded quickly to our response for a quote, did a spectacular job, and even went out their way to do a little extra cleaning of our patio furniture at no charge. Their prices were very reasonable, we will definitely be using them again!
