Do I need HOA approval to have my house washed?

Often not, since low-pressure cleaning does not change colors, materials or structures. But associations differ, and some want notice or limit contractor work days. Check your covenants, or send a short email to the board or management company and keep the reply.

What should I ask an exterior cleaning contractor before hiring them?

Ask who does the work, what method and pressure they use on each surface, whether they carry liability insurance and can send proof, whether they have references, and what is and is not included in the price. A good contractor answers plainly and explains trade-offs.

Why do exterior cleaning quotes vary so much between companies?

Quotes differ in scope, method and what is included. One may price a low-pressure wash of every surface, another a quick rinse of only the visible walls. Ask each contractor what is included, which method is used on each material, and how problems will be handled.

What is the white powder on my concrete driveway or patio?

It is most likely efflorescence, a salt deposit left when moisture travels through concrete and evaporates. It is often cosmetic and can be brushed and rinsed off. If it keeps returning, look for water sources such as downspouts, grading or sprinklers that keep the slab damp.

How often should I stain my deck in Illinois?

A typical range is every two to three years, but it depends on the product, the wood and sun exposure. Do the water test each spring: if water soaks into the boards instead of beading, the finish is worn. Heavily used and sunny areas may need attention sooner.

How often should gutters be cleaned in Illinois?

Twice a year is the usual answer: late spring after the seed and flower drop, and late fall after the leaves come down. Homes under mature oaks, silver maples, cottonwoods or pines often need a third visit. Homes with few trees nearby can sometimes manage one thorough cleaning a year. Overflowing, sagging or plant-filled gutters are overdue regardless of the date.

What causes ice dams on houses in McHenry County?

Heat escaping from the living space into the attic warms the roof deck and melts snow. The meltwater runs to the cold overhang at the eave and refreezes, building a ridge that traps more water. Our freeze and thaw cycles, snow cover and leaky ceilings or thin attic insulation make this common.

What exterior cleaning adds the most curb appeal before selling a house?

Roof streak removal, a house wash, and a clean driveway and walk usually change the first photo the most. Windows and gutters come next. Start from the street and fix what jumps out in a phone photo of the front of the house.

Is it safe to power wash asphalt shingles?

No. Asphalt roofing industry guidance rules out power washers, brushes and brooms for algae, since forceful washing is likely to harm asphalt roofing. It can strip granules and push water under the shingles. A gentle spray of cleaner followed by a soft rinse is the commonly accepted method.

What causes black streaks on roofs in Illinois?

Most often it is Gloeocapsa magna, an airborne cyanobacterium commonly called roof algae. It settles on damp, shaded shingles and builds a dark protective pigment, and rain running downhill stretches the growth into streaks. North-facing slopes and roofs under trees tend to show it first.

When should I do fall yard cleanup in northern Illinois?

Start the main cleanup after most of the canopy is bare, usually late October, and plan a second short pass in mid November once the oaks finish. Aim to be done before the first sustained freeze. Gutters should wait until the leaves have actually fallen, or you will be cleaning them twice.

Do I need to be home when my house is pressure washed?

Not always, but it helps to be reachable by phone. Make sure gates are open, windows are closed, and water access is available. If you will not be home, text the contractor a list of anything to avoid or move. Walk the house afterward to review the results.

When can I start spring exterior cleaning in northern Illinois?

Inspect as soon as the snow is gone, but wait for the last hard freeze before washing anything, because water left on hard surfaces can turn to ice. In McHenry County that often means mid to late April for most washing, with gutters and windows best saved for late May.

What is the best month to power wash a house in Illinois?

May and September are the safest bets. Temperatures are moderate, surfaces dry quickly, and heavy pollen or leaf fall is mostly absent. House siding is usually washed at low pressure with a cleaning solution, not blasted, so the month matters mainly for drying and weather. Avoid very hot afternoons and any day with freezing temperatures forecast overnight.

Is the green stuff on my siding mold or algae?

Usually it is algae, mildew or a mix, living on a film of dust and pollen. Green tends to be algae and dark gray or black patches are often mildew. Orange or rust-colored stains may be minerals or rust instead. It generally stays on the surface and rinses off with the right cleaning method.

How does soft washing differ from pressure washing?

One relies on force and the other on chemistry and patience. Pressure washing physically blasts dirt off hard surfaces such as concrete. Soft washing lets a gentle cleaner break down algae, mold and mildew first, so a light rinse can carry everything away.

Will soft washing kill my plants?

It can burn tender plants if solution or runoff reaches them, which is why careful crews wet the plants first, control where the solution goes, cover delicate ones and rinse afterward. Risk is lower with established shrubs and higher with new growth. Ask your contractor how they protect plants.

What causes white spots on my windows in McHenry County?

Most often it is mineral deposit from water that dried on the glass, usually from sprinkler overspray or hose water, sometimes from well water. Calcium and magnesium stay behind when the water evaporates. A squeegee and soap may not remove them, but a mild acid often will on fresh spots.

Home
Guides

Straight answers about the outside of your house

18 guides written for northern Illinois weather, trees, water and housing. Each one opens with the short answer, then explains the reasoning so you can decide for yourself.

Buying a Contractor

Exterior Cleaning in HOA and 55+ Communities: What to Know

In an HOA or 55+ community, check your governing documents first: many associations decide who maintains roofs, siding, gutters and driveways, and some require notice or approval for contractors.

Straight answers about the outside of your house

Buying a Contractor

Exterior Cleaning in HOA and 55+ Communities: What to Know

How Do You Choose a Good Exterior Cleaning Contractor?

What Affects the Cost of Exterior Cleaning?

Concrete

White Powder, Rust Stains and Salt Damage on Concrete: What Is It and What Helps?

Decks

How Often Should You Wash and Stain a Deck in Northern Illinois?

Gutters

How Often Should You Clean Gutters in Northern Illinois?

What Causes Ice Dams in McHenry County, and What Actually Fixes Them?

Home Selling

Curb Appeal Before You Sell: What to Clean and Fix First

Roofs

Is Roof Washing Safe for Asphalt Shingles?

What Are the Black Streaks on Your Roof, and Should You Remove Them?

Seasonal

Fall Yard Cleanup Checklist for Northern Illinois

How Do You Prepare Your Home for an Exterior Cleaning Visit?

Spring Exterior Checklist for Northern Illinois Homes

When Is the Best Time of Year to Clean Your Home's Exterior in Northern Illinois?

Siding

Mold and Algae on Siding: What It Is, Whether It Matters, and How to Clean It

Soft Washing vs Pressure Washing: Which Does Your Surface Need?

Soft-Wash Cleaning Solutions: Plants, Pets and Storm Drains

Windows

Why Do Windows Get Hard Water Spots, and What Helps If You Have a Well?

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