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ANOKA COUNTY, MINNESOTA
Exterior cleaning and care in Coon Rapids, MN
Owner-operated from Ham Lake, with Coon Rapids on our regular route and every service shaped by its water, oaks and river.
Glass House takes care of the full exterior of Coon Rapids homes: windows, siding, roofs, gutters, decks and concrete, along with iron, hard water and other stains, and roofline holiday lighting in winter. Each service page below is written for Coon Rapids, with the local facts that change how the work is done.
Coon Rapids water is hard, and in summer some wells send iron and manganese straight to your sprinklers. Oak savanna shades many yards, and the Mississippi and Crooked Lake keep the air damp. Each quote is confirmed with a quick walk-around, so the method suits your home before work begins.
OWNER-OPERATED
Carson Brenny quotes your home, does the work himself and walks the result with you before the job is complete.
★ Rated 4.9 on Google · 44 reviews
Insured to $2M
Owner-operated
Based in Ham Lake
ABOUT COON RAPIDS
What we see on Coon Rapids homes
WATER
Hard water, iron in every well
Coon Rapids water runs about 275 to 310 PPM (parts per million) of hardness, and the city says iron and manganese are in all 22 of its wells. Its plants remove them, but in summer some wells pump straight into the system. When sprinkler or hose water dries on a home, the minerals stay: calcium leaves white spots on glass, and iron and manganese oxidize into orange and brown stains, heaviest in summer.
TREES
Oak savanna, with a pruning ban
Coon Rapids bans pruning or trimming oaks from April 1 to June 30 to protect its native oak savanna from oak wilt. It also had nearly 7,000 boulevard ash trees facing emerald ash borer. Oak shade keeps roofs and siding damp after rain and dew, which is what algae and moss need, and oak leaves and catkins pack gutters every year. Ash killed by the borer turn brittle and drop limbs and twigs onto roofs and into gutters.
WATER NEARBY
The Mississippi and Crooked Lake
Coon Rapids runs along the Mississippi River, 12 miles north of Minneapolis, and shares Crooked Lake with Andover. Air along the river and the lake stays humid, so roofs, siding and decks dry slowly after rain and dew. Damp surfaces are where algae, mildew and moss take hold, usually on the shaded north side first. Lake homes are best washed at least once a year, because growth returns fastest where the air stays damp.
HOMES
A median home built in 1983
The median Coon Rapids home was built in 1983, and about a quarter date from the 1980s. Four decades of sun break the surface of siding and painted trim down into a chalky film called oxidation, which streaks when rain runs over it. High pressure scrubs that film off unevenly and can damage it, so older surfaces receive a gentle, low-pressure wash, and heavy chalk is treated as a separate removal step.
Sources: City of Coon Rapids, City Water System and Utilities FAQs; USGS, Hardness of Water; City of Coon Rapids, Oak Wilt Control; City of Coon Rapids, Emerald Ash Borer (2025); City of Coon Rapids, About; Minnesota DNR, Crooked Lake; Point2Homes, Coon Rapids demographics (U.S. Census ACS 2019-2023).
COON RAPIDS WATER
Coon Rapids water on your house, and what helps
The water here is hard all year, and in summer iron and manganese can reach your sprinklers too. Here is how each mineral marks a home, why the usual household fix backfires, and how we clean with your water.
Two stains from the same water
Iron and manganese oxidize into orange and brown streaks on siding, brick and concrete, and calcium dries into white spots on glass. Dissolved iron is invisible and turns to rust once the water meets air on a porous surface, which is why a sprinkler stain traces the arc of the head. Same water, two different problems, and two different treatments: one for the siding and concrete, another for the glass.
Why bleach makes rust worse
Bleach is the usual first instinct, and on rust it is the wrong one. Bleach is an oxidizer: on rust, it oxidizes the iron further and sets the stain. Iron comes out with acid-based chemistry that dissolves it or binds it into a form that rinses away. Acid and bleach must never meet, mixed or one after the other without a full rinse, because together they make chlorine gas.
What prevents most of it
Aim every sprinkler head at the grass, never the house, and keep hose spray off siding and glass. In summer some Coon Rapids wells pump straight into the system, so iron can reach your sprinklers right when lawns are watered most. A head that still reaches the house will bring the stain back. Where it matters most, filters on the outside spigots can remove the minerals first.
How we clean with your water
We connect to your outside spigot and run the water through reverse osmosis, carbon and deionization filters in our van until it reads 0 PPM. Water with nothing dissolved in it cannot spot as it dries. Hard water wears the filters out faster, so we check the meter as we go, and the filter resin is replaced before the next job once a reading reaches 15 PPM.
THROUGH THE YEAR
A year of home care in Coon Rapids
SPRING
Clear the winter
Pollen and winter film come off the glass, and spring gutter cleaning clears seeds and catkins. Trim branches back so the roof dries faster, but leave oaks until the pruning ban ends June 30.
SUMMER
Watch the sprinklers
Coon Rapids runs odd/even sprinkling from June 1 through August 31. Aim the heads at the lawn, not the house, and treat new stains early, before they bond.
FALL
Gutters before the freeze
Gutters are cleaned once the leaves are down and before the first hard freeze, so wet debris does not freeze in place. Exterior cleaning wraps up November 15.
WINTER
Ice dams and lights
When storms create ice dams, they are removed with steam only, which melts the ice rather than chipping it. Roofline holiday lighting installs begin November 1, with takedown and storage included.
COON RAPIDS QUESTIONS
Questions from Coon Rapids homeowners
Do you serve all of Coon Rapids?
Glass House serves every neighborhood in Coon Rapids. The business is based in Ham Lake, and Coon Rapids is part of our regular north metro route, so there is no trip fee. Lake lots are a regular part of the work, and a home on Crooked Lake costs the same as any other.
Can you clean my windows with Coon Rapids water?
Yes. We connect to your outside spigot and run the water through reverse osmosis, carbon and deionization filters in our van until it reads 0 PPM, meaning no dissolved minerals are left to spot the glass. Hard water wears the filters out faster, so we check the meter as we go. Please make sure the spigot is turned on and easy to reach.
Why are there orange stains under my windows?
Orange stains under windows are usually iron, carried by sprinkler or hose water and left behind when the water dries. In summer some Coon Rapids wells pump straight into the system, so sprinkler water can carry iron and manganese right when lawns are watered most. It takes an iron-specific, acid-based treatment, never bleach, which sets the stain. The sooner it is treated, the better it comes out.
How often should a house in Coon Rapids be washed?
Most homes in Coon Rapids should be washed every year or two. Homes near the Mississippi or Crooked Lake, and homes on shaded lots, should be washed every year, because algae and mildew return faster where siding stays damp. Trimming shrubs a foot or two back from the walls lets air move along the siding and helps it dry between washes.
How do quotes work?
To request a quote, send a photo or book a walk-around. Every online quote is verified in person before the work starts, so Carson can confirm the surfaces and bring the right mix for each one. You will have the exact price before any work begins. Normally nothing changes, and if something does, he explains it and works out a plan with you first.
When is your season?
Exterior cleaning runs March 1 through November 15. Roofline holiday lighting installs begin November 1, so both can be booked in the first half of November. Through the winter, ice dams are removed on call with steam only, and interior window cleaning remains available.
Who does the work?
Carson Brenny, the owner, does every job himself. Glass House is owner-operated, with no crews or subcontractors, and is insured to $2M. The person who quotes your Coon Rapids home is the person who does the work and walks it with you at the end, so one standard applies from start to finish.
What if the weather turns?
Weather reschedules are always free and never count as a cancellation. We text you the day before with your arrival window, and again when Carson is on the way. For any other change to an appointment, please let us know at least 48 hours in advance, as the service policies explain.
THE OWNER
Coon Rapids, a regular stop on Carson's route
Carson Brenny owns Glass House and works without crews, subcontractors or handoffs. The business is based in Ham Lake, and Coon Rapids is a regular stop on its route. After six years full-time in exterior cleaning, he still quotes every job, does it himself and walks the finished home with the customer.
Coon Rapids has hard water with iron in every well, oak savanna shading many yards, and the Mississippi and Crooked Lake keeping the air damp. With a median home built in 1983, much of the siding is old enough to chalk. Carson shows each homeowner which of those is on their house and what will help, because for most families, the house is their largest investment and deserves more than guesswork.
IN CARSON'S WORDS
“It's my neighbors' homes: their biggest investment, one of the places they spend the most time, and where the people they care about most live. It's something everyone should enjoy, and I believe that.”
Carson Brenny, owner
