Streak-free commercial window cleaning for buildings of every height
Equipment and methods
Clean windows are one of those details nobody notices until they're dirty. Streaked, spotted, or film-covered glass makes even a well-maintained building look neglected from the street. For retail properties, dirty windows directly impact foot traffic and sales. For office buildings, they affect tenant satisfaction and lease renewal conversations.
LPJ Services provides professional window cleaning for commercial properties across the Chicago area, from single-story retail storefronts to high-rise office towers. We handle interior and exterior glass, frames, sills, tracks, and screens using techniques and equipment matched to your building's height, access requirements, and glass type.
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We deploy different techniques based on building height and access: water-fed pure water pole systems for buildings up to 4-5 stories (no lifts required, faster execution, lower cost), boom lifts and swing stages for mid-rise buildings with limited roof access, rope descent systems (rappelling) for high-rise exteriors where swing stages aren't practical, and traditional squeegee service for interior glass and ground-level storefronts.
Our water-fed pole systems use deionized pure water that dissolves minerals and dirt on contact, then dries spot-free without chemical residue. This method is faster, safer (no ladders or lifts for low-rise work), and produces a cleaner result than traditional methods on exterior glass.
Safety and compliance
High-rise window washing is inherently high-risk work, and we treat it accordingly. Every crew member is trained on the specific access equipment used on your building and operates under documented safety protocols. We carry full workers' compensation, general liability, and umbrella coverage. We provide certificates of insurance and job-specific safety plans for your building's risk management files.
Before any high-rise exterior work, we conduct a site safety assessment that covers anchor point inspection, weather protocols (we do not perform high-rise work in winds exceeding 25mph), pedestrian protection zones at ground level, and equipment inspection logs.
Scheduling and frequency
Most commercial properties maintain windows on a quarterly or semi-annual schedule. High-visibility retail and hospitality properties often require monthly service. We work with your building management to schedule around tenant events, construction activity, and weather windows. That matters in Chicago, where lake-effect weather can shut down exterior access for weeks.
If a session is rescheduled due to weather, we tell you the new date. Every visit is on the record in your client portal, with its photos.
Scope beyond glass
Our window washing service includes frame and sill cleaning, track and channel clearing to maintain proper drainage and operation, screen removal, cleaning, and reinstallation, hard water stain removal and mineral deposit treatment, and bird deterrent assessment (we can recommend and install bird spike systems for problem areas). For properties with a lot of glass (curtain wall buildings, glass atriums, sky bridges) we do annual glass condition assessments that identify potential issues like seal failures, mineral etching, and coating deterioration before they require expensive replacement.
What's included
- Interior and exterior window cleaning
- High-rise capability: swing stages, rope descent, boom lifts
- Water-fed pure water pole systems for low and mid-rise
- Frame, sill, and track cleaning included
- Hard water stain and mineral deposit removal
- Screen removal, cleaning, and reinstallation
- Trained high-rise crews with documented safety protocols
- Weather-responsive scheduling
- Annual glass condition assessments
- Full insurance with certificates available on request
What matters on a window washing program.
Spot-free glass
Water-fed poles with deionized pure water dry spot-free without chemical residue.
Safety at height
High-rise work starts with a site safety assessment, and no high-rise work is done in winds over 25 mph.
Winter
Interior glass is cleaned year-round. Exterior work runs with the weather, typically March through November in Chicago.
Insurance
General liability, workers compensation and umbrella coverage, with certificates on request.
Access and safety assessment
We evaluate your building's height, access points, anchor systems, and ground-level conditions to determine the safest and most efficient method for your property.
Scope and frequency recommendation
Based on building type, glass area, and exposure conditions, we recommend a frequency (quarterly, semi-annual, or monthly) and send a detailed quote.
Weather-smart scheduling
We schedule exterior work during optimal weather windows. If conditions force a reschedule, we tell you the new date.
Professional execution
Our trained crews execute the scope using the appropriate access method and technique. Pedestrian safety zones are established. Work is documented with completion photos.
Post-service inspection
Supervisors inspect the completed work before sign-off. Any touch-ups are handled immediately. Photos of the visit are on the record in your client portal.
Windows, answered.
Areas we cover most for window washing: The Loop, Streeterville, River North, South Loop, Evanston.
How often should commercial windows be cleaned?
Most office and commercial properties clean windows quarterly. Retail storefronts and hospitality properties often require monthly service. Buildings in high-pollution or construction-adjacent areas may need more frequent cleaning. We recommend a frequency based on your building's exposure and tenant expectations.
Do you wash windows in winter?
We perform interior window cleaning year-round. Exterior cleaning is weather-dependent. We avoid sub-freezing temperatures and high winds. In Chicago, exterior service typically runs March through November, with interior-only service during winter months.
Are your crews insured for high-rise work?
Yes. We carry general liability, workers' compensation, and umbrella coverage. All high-rise crew members are trained on the specific access equipment used on your building and operate under documented safety protocols. We provide certificates of insurance on request.
Can you clean interior glass partitions and atriums?
Yes. We clean all interior glass. Office partitions, conference room walls, atrium panels, glass railings, lobby feature glass. Interior work is scheduled during or after business hours based on your preference.