Services Built Around Your Home

We use both, depending on what's safest and most effective for each window.

For glass reachable from stable ground or a ladder, we use the traditional handheld squeegee method. For windows that are particularly high (24ft or above) we switch to a water-fed pole to keep the job safe without sacrificing quality.

Our primary cleaning solution is simple dish soap, for both interior and exterior. Dawn is our go-to (it's a classic for a reason), and we also offer eco-friendly alternatives like Mrs. Meyer's or Seventh Generation if you prefer.

Typically 3–5 hours, occasionally longer (8+ hours) for estates or multi-unit properties. We work around your schedule and aim to impact your day as little as possible — and can start with interior or exterior, whichever works best for you!

Yes, we clean windows year-round in the Front Range. As long as the temperature is above freezing we can clean your windows safely with the right methods for the conditions. Our busiest seasons are summer and fall, when homeowners are looking for multiple services (e.g., adding pre-winter gutter cleaning and or post-irrigation season mineral build-up removal).

For most Colorado homes we recommend professional window cleaning twice a year — once in spring after pollen season and again in fall before winter sets in. Homes with larger windows, panoramic views, or hard water from irrigation systems often benefit from three or four cleans per year. Colorado's high altitude UV exposure, seasonal wildfire smoke, and mineral-rich water accelerate glass buildup faster than most states — which means your windows need more frequent professional attention than the national average suggests. Factors like kids and pets touching glass, nearby construction, or rural dirt roads can also increase how often a clean makes sense. Ask us about our maintenance plan discounts for multiple cleans per year across Boulder and the central Front Range.

The most common cause we see is untreated sprinkler water hitting the glass — over time, the minerals in that water build up and bond to the surface. The good news: this is usually safe to remove, for an additional fee, using a commercial-grade treatment.

Timing matters here, and we'll always give you a straight answer about what to expect. If the buildup is three years old or less, we can typically restore the glass fully. Once it's been sitting for four years or more, the minerals have started to etch into the glass itself, so we can't promise a full restoration — at that point it usually needs polishing and resurfacing, and we'll walk you through what result to realistically expect before doing any work.

Yes. It is more serious than most homeowners realize. Wildfire smoke is not like ordinary dust or pollen. The ash and fine particulate matter from Colorado wildfires bond to glass on a microscopic level through a process called acid etching. Unlike regular dirt that rinses away, wildfire residue is chemically acidic and actively degrades your glass surface, window seals, and frames the longer it sits. Left untreated it can permanently etch into the glass and cause damage that no amount of cleaning can reverse.

Professional cleaning after a significant smoke event is not just about appearance — it is about protecting your investment.

Columbine Window Cleaning uses professional grade solutions specifically formulated to break down smoke and ash residue safely and completely across Boulder, Louisville, Lafayette, Erie, and the surrounding Front Range communities affected by Colorado wildfire seasons. A garden hose and paper towels will not get the job done. Call or text us after any major smoke event for a post-wildfire window cleaning assessment.

📞 (720) 781-7899