Professional Exterior Cleaning That Restores Your Property's First Impression
The outside of your building is the first thing customers, tenants, and visitors see — and Missouri weather is hard on it. Algae and mildew streak vinyl siding and roofs. Mud, pollen, and road grime dull brick and stucco. Oil stains and gum mar parking lots and walkways. Black mildew lines collect under gutters and on north-facing walls. Our exterior cleaning and pressure washing services in St. Louis remove years of buildup and restore the clean, professional look that protects your property value and your brand image.
Bel Cleaning's exterior crews are trained to match the right method to every surface — high-pressure washing for durable hardscapes, gentle soft washing for delicate siding and roofs, and detailed hand work for windows, entrances, and architectural features. We serve commercial properties and residential homes alike, and we pair beautifully with our ongoing commercial janitorial programs so the inside and outside of your facility stay equally sharp.
Our Three Exterior Cleaning Methods
Using the wrong technique can etch concrete, strip paint, or force water behind siding. That's why we start by identifying every surface and choosing the safest, most effective approach. Most projects combine all three methods below, sequenced so each surface gets exactly the treatment it needs.
Pressure Washing
High-pressure water for durable hardscapes and heavy buildup.
- Concrete, sidewalks, and flatwork
- Parking lots and garages
- Brick, masonry, and pavers
- Dumpster pads and corrals
- Oil, gum, and stain removal
Soft Washing
Low pressure plus biodegradable solutions for delicate surfaces.
- Vinyl, wood, and fiber-cement siding
- Stucco and EIFS facades
- Roof algae and moss removal
- Awnings, canopies, and signage
- Fences, decks, and railings
Window & Detail
Hand and pure-water cleaning for finish surfaces and glass.
- Exterior & storefront windows
- Entry glass, doors, and frames
- Light fixtures and bollards
- Architectural feature detailing
- Final rinse and spot-free finish
What's Included in Our Exterior Cleaning Services
From the roofline to the parking lot striping, we cover every exterior surface of your commercial or residential property. These services can be bundled into a single project or scheduled as a recurring exterior maintenance program:
- Building & facade washing — full-exterior soft washing of vinyl, wood, fiber-cement, brick, stucco, EIFS, and metal-panel walls to remove algae, mildew, dirt, pollen, and atmospheric staining without surface damage
- Pressure washing & flatwork — concrete sidewalks, entryways, loading docks, driveways, patios, pool decks, and pavers cleaned of dirt, grime, oil, rust, efflorescence, and tire marks
- Parking lot & garage cleaning — surface and structure parking cleaned of oil stains, debris, and buildup; stairwells, elevator lobbies, and drive lanes washed; coordinated with traffic flow and after-hours scheduling
- Roof cleaning — low-pressure soft washing to safely remove black algae streaks (Gloeocapsa magma), moss, and lichen from asphalt shingle, metal, tile, and flat commercial roofs, extending roof life
- Gutter cleaning & brightening — gutters and downspouts cleared of leaves and debris; exterior gutter faces brightened to remove black "tiger stripe" oxidation; downspout flow verified
- Exterior window & storefront cleaning — ground-level and accessible upper windows, storefront glass, entry doors, frames, sills, and tracks cleaned to a spot-free finish; available as standalone recurring service
- Concrete & stain treatment — oil and grease removal, gum removal, rust and battery-acid stain treatment, efflorescence removal, and degreasing of high-traffic surfaces
- Awnings, signage & canopies — fabric and metal awnings, drive-through canopies, monument signs, and channel-letter signage cleaned to restore color and visibility
- Dumpster pads & sanitation areas — degreasing and disinfecting of trash enclosures, dumpster corrals, and grease-trap surrounds to control odor and pests
- Graffiti removal — safe removal of spray paint and tagging from brick, concrete, metal, and painted surfaces, with anti-graffiti coatings available
- Residential exteriors — house washing, driveways, walkways, decks, fences, patios, retaining walls, and outdoor living areas for homeowners, HOAs, and property managers
- Solar panel cleaning — gentle, deionized-water cleaning of rooftop and ground-mount solar arrays to restore energy output without scratching panels or voiding warranties
Grand Opening or Property Inspection Coming Up?
We can have your exterior looking its best — ask about fast-turnaround scheduling.
Office & Commercial Buildings
Multi-story facades, entrances, walkways, and parking areas kept clean to protect your professional image and property value.
Retail & Restaurants
Storefronts, sidewalks, drive-throughs, dumpster pads, and signage cleaned to keep your business inviting and code-compliant.
Warehouses & Industrial
Loading docks, exterior walls, concrete aprons, and equipment yards for warehouse and distribution facilities with heavy buildup.
Residential Homes
House washing, driveways, decks, patios, fences, and gutters that restore curb appeal and protect your largest investment.
HOAs & Multi-Family
Apartment buildings, condos, and community common areas — sidewalks, breezeways, pool decks, and building exteriors on a recurring schedule.
Schools & Institutions
Campuses, churches, medical offices, and municipal buildings — entrances, walkways, and facades cleaned during off-hours and breaks.
How Our Exterior Cleaning Process Works
Every exterior project starts with a walk-around assessment. We identify each surface type, note delicate materials that require soft washing, check for staining that needs special treatment, locate water sources and drainage, and confirm access, parking, and scheduling constraints. From there we provide a clear written estimate with the methods and sequence for your specific property — not a flat per-square-foot guess that ignores surface conditions.
Our crews follow OSHA safety protocols, use proper fall protection for elevated work, and manage wash-water runoff responsibly in line with local stormwater requirements. We work around your hours — early mornings, evenings, and weekends for commercial sites — so your operations and customers aren't disrupted. After the project, many clients set up a recurring exterior maintenance program and pair it with our ongoing commercial janitorial service or periodic floor maintenance programs. See all our services on our commercial cleaning services page.
Serving St. Louis, Saint Charles & Across Missouri
Commercial and residential exterior cleaning with flexible, around-your-schedule timing.
Frequently Asked Questions — Exterior Cleaning
Pressure washing uses high-pressure water to clean hard, durable surfaces like concrete, brick, pavers, and parking lots. Soft washing uses low pressure combined with specialized biodegradable cleaning solutions to safely remove algae, mildew, and dirt from delicate surfaces like roofs, vinyl siding, stucco, and EIFS without forcing water behind the material or causing damage. We assess every surface first and apply the right method for each.
Yes. We serve commercial properties — office buildings, retail centers, restaurants, warehouses, HOAs, schools, and medical facilities — as well as residential homes. Our crews and equipment scale from a single-family driveway or house wash up to a multi-story commercial facade or a full property campus.
Not when the correct method is used. Damage usually happens when high pressure is applied to surfaces that shouldn't take it. We use low-pressure soft washing on delicate materials like roof shingles, vinyl and wood siding, stucco, and windows, and reserve high pressure for durable hardscapes like concrete and brick. Matching the method to the surface protects your property while still delivering a deep, thorough clean.
It depends on traffic, location, and surface type. Storefronts and high-traffic entrances often need monthly or quarterly attention, parking areas and sidewalks are commonly cleaned quarterly to semi-annually, and full building facades and roofs are typically scheduled once or twice a year. We can build a recurring exterior maintenance program tailored to your property so buildup never gets ahead of you.
Yes. Bel Cleaning is fully licensed, bonded, and insured, with certificates of insurance available on request. Our crews are OSHA-trained, use proper fall protection and ladder safety for elevated work, and manage wash-water runoff in accordance with local stormwater regulations. Additional coverage documentation can be provided to meet property-manager or vendor requirements.
