Residential window cleaning in Oshawa typically costs $160 to $300 for exterior service on a standard builder-grade home. Interior and exterior combined runs $250 to $500+, depending on square footage, window count, and accessibility. Most Oshawa homeowners book twice a year to stay ahead of winter salt damage and seasonal buildup.
Oshawa’s winters leave more than snow behind. Road salt spray, freeze-thaw mineral deposits, and months of moisture coat your windows in a film that a garden hose and paper towels cannot fix. If you have been searching for a clear answer on what professional window cleaning actually costs in Durham Region, this guide covers real pricing, what affects your quote, and what you should expect from the service.
We have been cleaning windows across Oshawa and Durham Region since 2001. With over 1,100 active residential and commercial clients, we see every type of home in this area, from standard builder-grade houses in North Oshawa to heritage properties in the city centre and custom waterfront homes along the lake. The pricing in this guide reflects what homeowners in this area actually pay.
What Does Window Cleaning Cost in Oshawa?
We price most residential jobs by square footage rather than per pane. This approach works well for standard builder-grade homes because it accounts for the typical number of windows per square foot in this area. You get a clear, upfront number without counting every pane in your house.
Custom homes are different. If you have wall-to-wall glass looking out over Lake Ontario or a layout that does not follow standard builder patterns, we quote those individually after a phone consultation or photo review.
| Service Level | Standard Builder Home | Custom/Large Home |
| Exterior Only | $160 – $300 | $300+ (quoted individually) |
| Interior + Exterior | $250 – $500 | $500+ (quoted individually) |
| Storm Windows | Additional charge | Additional charge |
| Pella Windows | Additional charge | Additional charge |
| Skylights | Quoted separately | Quoted separately |
For context, per-pane pricing across Ontario ranges from $5 to $15 per pane for interior and exterior service or $3 to $8 per pane for exterior only. Our square-footage model often gives homeowners a simpler, more predictable quote.
What Factors Affect Your Window Cleaning Price?
Home Size and Square Footage
A 1,200-square-foot bungalow with 12 windows costs less than a 2,500-square-foot two-storey with 25. We use square footage as the starting point because it closely tracks window count for standard homes.
Oshawa’s housing stock is roughly 55% single-detached homes and 33% townhouses or semi-detached units. That mix means pricing varies from one street to the next. A detached home in Windfields will quote differently than a townhouse in Northglen, even at similar square footage, because the window layouts differ.
Number of Stories
Single-storey homes are the fastest to clean. Exterior-only service on a bungalow takes 30 minutes to an hour and a half. Interior and exterior on a two-storey home takes one and a half to three hours.
Multi-storey work requires either extension ladders with a dedicated spotter or water-fed poles. We carry carbon fiber water-fed poles that reach up to five stories, six with extensions. For residential work, this means we can reach second and third-floor windows without scaffolding or risky ladder setups.
Window Type
Standard casement, double-hung, and sliding windows are all covered in the base price. The cost changes with specialty glass.
Storm windows need to be taken apart, cleaned panel by panel, and reassembled. We are one of the few companies in Durham Region that still offers this service. Most crews skip storm windows entirely because the labour is intensive. If your home has them, expect an additional charge on top of the base price.
Pella windows have proprietary hardware that requires careful handling. Heritage homes in central Oshawa with original glass need slower, more delicate detailing to prevent chipping. We clean several heritage properties in the area and adjust our technique for each one.
Interior vs. Exterior Service
Exterior-only is the baseline. Interior service adds track wiping, frame cleaning, and sill detailing on every window. We open casement windows to wipe inside the tracks and do the same for double-hung windows.
Combined interior and exterior service typically runs 1.5 to 2 times the exterior-only price.
Window Condition and Cleaning Frequency
Windows that have gone several years without cleaning may have hard water stains, mineral buildup, or early-stage etching. These take longer and may need extra scrubbing with a sponge pad to break through the deposits.
Regular cleaning prevents that buildup and keeps your cost consistent from visit to visit. Oshawa receives roughly 932 millimetres of rain annually plus about 383 millimetres of snow. That level of moisture, combined with humidity that stays between 76% and 86% year-round, means your windows are constantly exposed to conditions that promote mineral deposits and mold growth on frames.
Accessibility
Ground-floor windows are the simplest. Upper floors require either ladder work with a spotter at the base or our water-fed pole system with purified water. Properties with decks, gardens, or obstacles around the base of the house may need extra setup time to position equipment safely.
If you live in the rural parts of Durham Region and your property runs on well water, let us know when booking. We can bring our own water supply for water-fed pole work so we do not strain your well.
What Is Included in a Professional Window Cleaning?
Most pricing guides stop at the dollar amount. Knowing what actually happens during the service helps you compare quotes and understand what you are paying for.
Our exterior process:
We start by wiping the exterior frame and sill with a damp rag to clear loose dirt. Then we apply a soap and water mixture with a mop and scrub the glass with a sponge pad. The sponge pad loosens surface dirt and breaks up any fresh hard water stains before they set in permanently. We squeegee all the water off, inspect the glass for remaining spots, clean anything that needs a second pass, and finish by detailing the frame and edges with a clean, dry rag.
For hard-to-reach windows, we switch to water-fed poles with purified water. The purified water leaves zero mineral deposits, so the glass dries completely streak-free without needing a squeegee at height.
Our interior process:
Interior work starts with opening casement windows and wiping out the tracks. We follow the same frame, glass, trim, and edge routine as the exterior. Screen wiping is included in the standard service. If your screens are heavily soiled and need a deep scrub, that is available for an additional charge.
| Included in Standard Service | Available for Extra Charge |
| Exterior glass cleaning | Storm window disassembly and cleaning |
| Frame, sill, and edge wiping | Pella window cleaning |
| Screen wipe (light) | Deep screen cleaning |
| Squeegee and detail work | Skylight cleaning |
| Track wiping (with interior service) | Post-construction window cleaning |
How Oshawa’s Climate Affects Your Windows
Oshawa sits in a humid continental climate zone with no dry season. Your windows deal with moisture in every season.
Winter is the harshest period. Road salt from municipal plowing coats windows on homes near busy streets. Freeze-thaw cycles, over 64 days per year where the temperature stays below freezing, leave mineral deposits as water repeatedly freezes and melts on glass surfaces. By spring, many windows have a cloudy film that household glass cleaner cannot cut through.
Spring and summer bring pollen from Durham Region’s mature tree canopy, plus humidity that hovers between 76% and 86%. That moisture promotes mold and mildew growth on window frames and sills, especially on the north-facing side of your home.
Fall brings leaf debris and increased rainfall before winter sets in again.
Two cleanings per year is the standard recommendation for most Oshawa homes. A spring cleaning removes winter damage. A fall cleaning prepares your glass before the next freeze cycle starts. Homes near Highway 401, construction zones, or heavily treed lots may benefit from a third session.
DIY vs. Professional Window Cleaning: Is It Worth Hiring a Pro?
Ground-floor windows are a reasonable DIY project. A bucket, a squeegee, and some dish soap will get acceptable results on single-storey glass you can reach from the ground.
The math changes on the second floor. Extension ladders without proper training and a spotter create real fall risk. Ontario’s Working at Heights regulations exist because falls from ladders are one of the most common causes of serious workplace injury in the province. Those same risks apply to homeowners on their own property.
| Factor | DIY | Professional |
| Cost | $20 – $50 in supplies | $160 – $300+ (exterior) |
| Time | 4 – 8 hours for a two-storey home | 1 – 3 hours (trained crew) |
| Upper floors | Risky without proper equipment | Water-fed poles, Working at Heights certified |
| Streak-free finish | Difficult with tap water | Professional squeegee technique and purified water |
| Screens and tracks | Often skipped | Included or available as add-on |
| Storm windows | Not recommended | Disassembled, cleaned, and reassembled |
| Insurance | None | $5 million liability coverage |
A study examining nearly 90,000 home sales found that strong curb appeal can add a 7% premium to a home’s sale price. With the average Oshawa home valued around $720,000 in 2026, that is a meaningful number. Clean windows are one of the most visible and affordable curb appeal improvements you can make.
How to Choose a Window Cleaning Company in Oshawa
Six questions to ask before you book:
- Are you WSIB insured? This is mandatory for any business operating in Ontario. If they hesitate, move on.
- How much liability insurance do you carry? We carry $5 million. The industry minimum should be at least $2 million.
- Are your crews Working at Heights certified? Ontario requires this for work above three metres on construction projects, and reputable cleaning companies hold this certification regardless.
- Do you quote a flat rate or hourly? A flat rate protects you from the final bill exceeding the estimate. We quote a flat rate on every job.
- What is included in the base price? Ask specifically about screens, tracks, frames, and sills. Some companies charge extra for each of these.
- Do you handle storm windows and specialty glass? Many companies refuse storm windows. If your home has them, confirm before booking.
We are WSIB insured, Working at Heights and WHMIS certified, and carry $5 million in liability insurance. We are also a certified dementia-friendly company through the Dementia Association of North America. With over 16% of Oshawa’s population aged 65 and older, we serve many senior homeowners and train our crews to work with patience and respect in those homes.
We are members of the North Durham Chamber of Commerce and maintain commercial accounts with Tim Hortons locations, fitness centres, golf courses, and college campuses across the Durham Region. That commercial experience translates directly into the systems, equipment, and accountability we bring to every residential window cleaning job.
Frequently Asked Questions
Do I need to be home during window cleaning?
Not for exterior service. For interior cleaning, let our office know how your crew can access the home. If your screens can only be removed from the inside, take them out before the appointment so we can fully clean the glass during an exterior-only visit.
Is basement window cleaning extra?
No. Basement windows are included in the standard service price at no additional charge. This comes up constantly, and we are not sure why people assume it costs more. Every window on the home is part of the job.
Will your cleaning products damage my plants or landscaping?
We use standard dish detergent and water for window cleaning. Our crews pre-soak all nearby landscaping before starting and rinse everything after finishing. For households with severe chemical sensitivities, we stock an organic, scent-free soap alternative. Just let us know when you book.
Can you clean windows in the rain?
Light rain does not affect results. Professional window cleaning removes the oils, grime, and mineral deposits that cause streaking. Rain is just water, and clean glass sheds it without leaving marks. We reschedule during heavy rain or thunderstorms at no extra charge.
How long do clean windows last before they need attention again?
Expect three to six months of noticeably cleaner glass, depending on your home’s exposure. Homes near busy roads or construction or with pets that press their noses against sliding doors will see buildup return faster. Two cleanings per year keeps most Oshawa homes looking sharp.
Do you need access to our water supply?
For most residential jobs, no. We bring our own water and supplies. If we are using water-fed poles on hard-to-reach windows, we may ask to connect to your exterior spigot. We will confirm this before the appointment.
Get a Quote for Your Oshawa Home
Most homeowners call us expecting the process to be complicated. It is not. Give us your address and approximate square footage over the phone, and we will have a price for you in a few minutes. For custom homes, text or email us a few photos, and we will reply the same day. Call us at 905-985-5156 or visit seemorewindowcleaning.com/contact-us to get started.
