Saint Paul is an old city, and its houses show it in the best way. Walk through Cathedral Hill, Merriam Park, Macalester-Groveland or Highland Park and you will pass brick foursquares, wood-sided Victorians, stucco bungalows and deep porches under a ceiling of mature trees. The same details that make these neighborhoods beautiful make exterior cleaning a different job here than it is in a new subdivision. The materials are older, the paint has a history, the lots are tight, and the trees drop a great deal on roofs and into gutters every fall.
This page covers exterior cleaning for Saint Paul homes: house washing, pressure washing, window cleaning, gutter cleaning, roof cleaning, dryer vent cleaning and trash can cleaning. It explains what each involves on an older house and what to ask any provider before they touch your home. If you would rather talk to a person, get a free quote by calling or texting (651) 858-2232 or using the quote form on the contact page.
Why an old Saint Paul house is a different job
A house built a century ago was not designed with a machine in mind. Wood siding has been painted and repainted, and the layers do not always bond to each other. Brick was laid with softer mortar than modern work. Window sashes may still hold their original glazing putty. Brackets, spindles, corner boards and porch rails have gaps and old caulk lines where water can get in.
So the first step on any Saint Paul home is looking, not spraying. A good provider walks the house and notes flaking paint, crumbling mortar, failed caulk and bare wood, because those are the places where force or the wrong cleaner does damage. The goal is to remove what does not belong, such as algae, pollen film, road grime and mildew, without taking away what does, such as paint, mortar and glazing. The exact plan for your house is confirmed when you get the quote, after we have looked at the surfaces and talked through the method.
Washing painted wood, brick and Victorian trim
House washing on an older home is mostly about patience and low pressure. Painted wood collects green algae and black mildew on the north and east sides, where shade from neighboring houses and big trees keeps the surface damp long after rain. A soft-wash approach uses low water pressure and a cleaning solution that does the real work of breaking down the growth, followed by a thorough rinse.
Wood needs the most care. Siding that has been blasted can have its grain raised and fuzzed, and water forced behind lap siding can soak sheathing. Paint that is already lifting can come off in sheets, so mention any peeling up front. A gentle wash is often the right step before a repaint, because paint does not hold well over algae and chalky dirt.
Older Saint Paul brick is usually softer than new brick, and its mortar is more fragile, so high pressure can erode both. White powder on brick, called efflorescence, is salt moving through the wall with moisture, and washing will not stop it returning if water keeps getting in. A cleaning is not a repair. Stucco on bungalows and Tudor-style homes also needs gentle handling around hairline cracks, vents and light fixtures. More on the approach is on the house washing page.
Historic districts: ask before you clean
Saint Paul has several historic districts, including the Historic Hill District around Summit Avenue, plus individual landmark properties. If your house is in one, there can be rules about exterior changes. Those rules usually focus on alterations rather than routine maintenance, but they vary by property and district, and nobody should assume cleaning is exempt. Check with the city's heritage preservation staff or your own records before work on a designated property.
Rules or not, treat delicate old materials with caution. Hand-carved wood, original leaded or stained glass, soft historic brick, slate and clay tile roofing, copper gutters and lead-coated trim all call for a conservative method, and some are best left to a specialist. If a provider says they can blast a historic house clean in an hour, that is a warning sign.
When you ask for a quote on a historic home, mention its age, known repairs and anything you would not want touched. We will say plainly if something should be left alone.
Leaf drop: maples, elms and the gutters on big old houses
Saint Paul's canopy is one of its best features and one of the hardest things on a house. Mature maples and elms drop leaves, seeds, twigs and bud scales onto roofs and into gutters from spring through fall. Large old houses often have long gutter runs, deep eaves, built-in box gutters and tall rooflines that make the job risky for a homeowner on a ladder.
When gutters clog, water spills over the edge, runs down the siding, soaks the foundation line and in winter can build ice dams at the eave. A proper gutter cleaning clears the whole run, flushes the downspouts and confirms that water reaches the outlet. Ask whether the provider will tell you about sagging sections, loose hangers and open joints, because those are repair items worth knowing about.
Many Saint Paul homeowners get the most value from a cleaning after the main leaf drop in late fall and another look in spring. A house under a very heavy canopy may need more. See the gutter cleaning page.
Roofs under the canopy
Shade and falling leaves make a perfect recipe for roof moss and dark streaking. The black streaks on asphalt shingles are usually algae, and moss settles on north-facing slopes and wherever debris sits. Both hold moisture against the roof, and moss can lift shingle edges over time.
Roof cleaning is a gentle, low-pressure process. High pressure strips protective granules and shortens a shingle roof's life, so the careful approach treats the growth with a solution and finishes with a light rinse. Ask how the provider protects plants, and how they handle manufacturer warranty requirements, which vary by shingle maker. If your roof is slate, clay tile, cedar or metal, say so, because some of those materials should not be washed without specialist advice. A roof in poor condition needs repair before cleaning. See the roof cleaning page.
Original windows and divided lights
Many Saint Paul houses still have original wood windows, often with storm windows outside and small divided panes. Water running down old glazing putty and into a rotted sill is how a clean window turns into a repair job.
Window cleaning on an older house is a hand job: a scrubber, squeegee and cloths, with care around sash edges. Storm windows and screens often come off to be cleaned on both sides, and tracks and sills collect pollen and dead insects. Leaded and stained glass should be handled only with the owner's agreement and gentle methods. Hazy or etched glass is often mineral damage, which can sometimes be improved and sometimes cannot, and we will say honestly which applies. See window cleaning.
Old concrete, steps and alley garages
Older neighborhoods have a lot of original concrete: front walks, steps, retaining walls, back patios and slabs behind alley garages. Freeze-thaw cycles and winter salt leave surfaces pitted, rust-stained and green in shaded corners. Pressure washing brings back the color and cuts slip hazards, but flaking or scaling concrete can lose more material if the pressure is too high, and a wand held too close can etch stripes into a slab.
Ask what pressure and nozzle a provider uses, how they treat joints and cracks, and how they protect plants and siding. Ask about wastewater too. In a dense city much of it runs toward a street, an alley or a neighbor's yard, and rules about storm drains vary, so runoff should be contained. Sealing after cleaning is a decision to make with the owner. See the pressure washing page.
Bluffs, hillsides and narrow side yards
Not every Saint Paul lot is flat. Dayton's Bluff looks out over the Mississippi, and steep streets and sloped yards appear in parts of Highland Park and along the river. Slopes affect cleaning in practical ways: ladders need safe footing, equipment must be managed on an incline, runoff follows the grade, and wet leaves on a hillside get slippery.
Narrow side yards are just as common. In Como, Payne-Phalen and Merriam Park, houses can sit a few feet from their neighbors, which raises the stakes for overspray and ladder placement. Before work starts you should know where the water will go and whether any neighboring windows or cars need attention. Tell us about gates, steep steps, shared driveways and tight corners so the plan fits the property.
Dryer vents and trash cans in older houses
Older houses often have dryer vents with long, winding runs, because laundry may have moved in a later renovation. Long runs with several elbows collect lint faster. Lint buildup is a fire hazard in general terms, and it also makes a dryer work harder. Signs of trouble include damp clothes after a full cycle, a hot laundry room, a burning smell and a hood that does not open.
A proper cleaning clears the duct from the dryer to the outside hood and checks that the flap moves freely. Ask whether the provider can reach your full run and whether they will tell you if the duct is crushed, disconnected or the wrong material. See dryer vent cleaning.
Trash can cleaning matters in a city where bins sit by the alley or in a tight side yard. Collection rules are set by the city and its haulers, so check the current ones, but whatever bins hold, they pick up residue and smell in warm weather. See trash can cleaning.
A Saint Paul year of seasons
Early spring is for winter's leftovers: road salt and grit on walks and siding, ice-damaged gutters and the first algae on shaded surfaces. Late spring brings tree pollen and cottonwood seed that coat windows and settle into gutters. Summer humidity feeds mildew on north-facing walls and under porch roofs. Fall is the big one, and gutter work is usually best after most leaves are down but before the ground freezes.
Many homeowners plan around two visits, spring and fall, and add other services as needed. Neighboring communities share these patterns, as in Minneapolis across the river and nearby suburbs such as Inver Grove Heights and Woodbury. See the service areas page.
How to get a free quote
Call or text (651) 858-2232, or fill in the quote form on the contact page. Tell us your neighborhood, the age and siding of your house, which services you want and any special concerns such as a historic district, original windows or a steep lot. Photos help. We will look at the surfaces and talk through the method, and the exact plan is confirmed when you get the quote. The quote is free.