Residential Window Cleaning Denver | Sonlight Window Clea…

What's Included

Every visible window in the home — interior and exterior surfaces, plus screens, sills, and frames. We don't skip the kitchen window above the sink, the basement egress, or the garage windows.
Screens are removed, washed by hand, and reinstalled. Bent screen splines are corrected; severely damaged screens are flagged for our optional re-screening service ($25–$45 per window).
Sills (the inside ledge) and tracks (the bottom channel where the window slides) are vacuumed clean of dirt, dead bugs, and dust. This is the part that DIY cleaning almost always misses.
Frames are wiped down — the painted or wooden border around the glass — including the corners where mineral deposits and pollen accumulate.
Pre-walk and final-walk: a Sonlight technician walks the home with you (if present) at the start to flag anything unusual, and again at the end to verify the work meets your standard.

How It Works

1. Get an instant quote
Enter your address. Our autoquoter pulls property details from public records and returns a real, firm price in seconds. No callback, no in-home estimate.
2. Pick a slot
Choose any open day on our calendar in the next 14 days. Same-day booking cuts off at 6 PM the prior evening. SMS + email confirmation arrives instantly.
3. We arrive on time
Our crew shows up within the time window, in branded trucks with $2M liability and workers' comp. The lead tech walks the property with you (if home) before starting.
4. Clean, inside and out
Interior windows are squeegeed dry with hand-towels and finished by hand. Exterior is cleaned with a purified-water rinse system that prevents new mineral spotting.
5. Final walkthrough + payment
We walk the home with you (or send photos if you're not there). Pay by card, ACH, or check. If anything looks off within 24 hours, we come back free.

Pricing

Every job is priced individually for the property — these are ballpark ranges to set expectations. The autoquoter on our home page returns an exact firm price for any address in our service area in 30 seconds.

Profile	Price range
Single-story 1,200 sqft home, ~14 windows	$200–$280
2-story 1,800 sqft home, ~22 windows	$300–$400
2-story 2,400 sqft home, ~30 windows	$400–$500
Larger custom home (3,500+ sqft)	$500–$800+
Hard-water stain removal add-on	$50–$200
Screen repair / re-screening	$25–$45 per window

Why This Matters in Colorado

Colorado's mile-high+ altitude means UV exposure is 25-40% stronger than at sea level. Mineral deposits etch into window glass faster, and window seals fail sooner. Twice-yearly professional cleaning is the practical baseline — quarterly for west-facing exposures or homes near sprinkler overspray.

Front Range water averages 50–150 ppm hardness depending on city (Denver Water ~70 ppm, Colorado Springs Utilities ~125 ppm). The water is also slightly alkaline (pH ~8) which etches the silica in glass faster than acidic water of the same hardness.

Spring pollen (cottonwood, pine) and June cottonwood fluff are the heaviest contamination periods. Most Front Range homeowners book a major clean in late May or early June after pollen drops, then a second in October before the holidays.

Frequently Asked Questions

How long does residential window cleaning take?

Most 2-story Colorado homes (1,800–2,400 sqft, ~22–30 windows) take 2–3 hours with a 2-tech crew. Larger custom homes can run 4–6 hours. We'll give you a specific time window when we confirm the booking.

Do I need to be home during the cleaning?

No. As long as we can access exterior gates, side yards, and any rooms you want cleaned interior, we're fine. We text you when the crew arrives and when the job is complete with photos. Most of our recurring customers are not home during the appointment.

What does 'full service' include vs. 'exterior only'?

Full service = interior + exterior + screens + sills + frames. Exterior-only = exterior surfaces only, no interior access required. Exterior-only runs about 65-75% of the full-service price and is faster to schedule. Most customers do full service in spring and exterior-only in fall.

Can you clean second-story or third-story exterior windows?

Yes. We use water-fed pole systems that reach up to 4 stories, and rope-descent gear for taller buildings. There's no upcharge for height on a typical 2-story residential job — height pricing only kicks in for homes over 3 stories or with bosun-chair access requirements.

What happens if it rains or snows on my appointment day?

We monitor weather closely. If conditions are unsafe, we'll reschedule for the next available slot (usually within 2-4 days) at no charge. We always give at least 24 hours' notice on weather-related reschedules.

Do you remove hard-water stains?

Yes — for stains less than ~6 months old. Older stains may have etched into the glass, in which case we use specialized cerium-oxide polish (extra charge). For severely etched glass, replacement is the only fix. See our hard-water stain removal guide for the full diagnostic.

Are you fully insured?

Yes. $2M general liability + Colorado workers' comp. Certificate of Insurance available on request — usually emailed within hours.

What's your cancellation policy?

Cancel any time up to 24 hours before the appointment at no charge. Inside 24 hours we ask for a $50 short-notice fee to cover crew scheduling, but we'll waive it for unavoidable events (illness, family emergency, weather).

Residential Window Cleaning in Your City

Sonlight provides residential window cleaning across Colorado's entire Front Range — pick your city for local pricing examples, FAQs, and example homes:

See all 28 cities we serve →

Residential Window Cleaning Across Colorado's Front Range

What's Included

How It Works

1. Get an instant quote

2. Pick a slot

3. We arrive on time

4. Clean, inside and out

5. Final walkthrough + payment