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Exterior Cleaning

Exterior House Washing That Removes Years of Dirt, Mold & Algae in a Single Visit

NorTech’s exterior house washing service delivers a complete, top-to-bottom clean for your home’s outside surfaces — eliminating mold, mildew, algae, oxidation, and ground-in dirt using the right method for your specific siding, stucco, or masonry type.

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New to NorTech? Save 15% off your first exterior house washing service — full home exterior, garage door, fascia, soffits, and trim included.

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What’s Included

Everything Covered in Our Exterior House Washing Service

A full house wash isn’t just spraying down walls. NorTech treats each exterior zone of your home with the right equipment and cleaning solution for that specific surface type.

Exterior Walls & Siding

All exterior wall surfaces — vinyl, fiber cement, wood, stucco, brick, or stone — are treated using the correct method for that material. Soft washing for delicate surfaces, targeted pressure for harder masonry. Mold, algae, mildew, and oxidation are all addressed from foundation to roofline.

Fascia, Soffits & Trim

Fascia boards and soffits are notorious mildew collectors that most homeowners never clean. We treat every linear foot of trim, fascia, and soffit along with the main exterior walls — so the entire home looks consistently clean, not just the easy-to-reach sections.

Garage Doors & Shutters

Garage doors collect road grime, exhaust residue, and biological growth just like any other exterior surface. Painted or aluminum shutters accumulate the same oxidation and streaking seen on siding. Both are cleaned as part of a complete exterior house wash.

Exposed Foundation Walls

The bottom section of your home’s exterior — where the wall meets the ground — takes the worst beating from soil contact, splash-back, and moisture. We clean exposed foundation sections and the lower band of siding where buildup is almost always heaviest.

Our Methods

Pressure Washing vs. Soft Washing — Which Method Does Your Home Need?

Not every home exterior gets cleaned the same way. NorTech uses both pressure washing and soft washing depending on the surface material, condition, and what the job actually calls for. Here’s how we decide.

Pressure Washing

High-pressure water used to blast away heavy buildup from surfaces that can handle the force — typically 1,500 to 4,000 PSI depending on the material.

  • Removes heavy dirt, mud, and debris fast
  • Effective on concrete, brick, and stone foundations
  • Great for exposed block or poured concrete base walls
  • Not suitable for vinyl, painted wood, or stucco
  • Can force water behind siding panels if misapplied

Best for: Brick exteriors, concrete block foundations, heavily soiled masonry, pre-paint prep on hard surfaces.

Pricing Transparency

Exterior House Washing Cost Factors

House washing costs are determined by the size of your home, exterior material, number of stories, and condition of the surface. Click any factor to learn more.

More exterior wall area means more solution, more time, and more labor — this is the biggest single factor in house washing cost.
Two-story and taller homes require extended equipment and additional safety setup time, increasing the overall job cost.
Stucco, EIFS, and brick require more precise application and specialized solution concentrations compared to vinyl siding.
Heavy biological growth needs stronger agents and longer dwell time to fully break down — directly adding to labor and material cost.
Typically included in a full house wash — may be a minor add-on if the property has extensive trim footage.
Often bundled into the full house wash at minimal added cost.
Tight yards, slopes, or landscaping obstacles around the home affect setup time and crew mobility.

Every exterior house washing job is priced to your property. Request a free quote — no obligation. Request a free quote — no obligation.

Certified & Insured Every technician, every job
The NorTech Promise Our service guarantee
Eco-Friendly Solutions Biodegradable & plant-safe
4.8-Star Rated 1,000+ verified reviews
Customer Reviews

What Customers Say About Our Exterior House Washing Service

4.8

Based on 1000+ ratings

“We were getting ready to sell and our realtor pushed us to get the house washed first. The difference was embarrassing — I couldn’t believe how bad it had gotten. Sold above asking price a week later.”

— Stephanie & Paul N.

“The black streaks on my stucco had been there so long I thought they were permanent. Two hours after the crew showed up, it looked like a completely different house. Absolutely worth it.”

— Lorenzo V.

“The house walls came out great. My issue is they didn’t clean the soffits even though I assumed that was included. When I asked they said it was extra. Would’ve been nice to know that upfront before booking.”

— Paula G.

“I’ve been putting off repainting the house for years partly because it always looked dingy no matter what. Turns out it wasn’t the paint — it was years of algae. One wash and the original color is back.”

— Mitchell T.

“Good results overall. They were thorough on the main walls and garage door. The north side of the house near the AC unit was a little harder to access and the cleaning was slightly less even there — not terrible but noticeable.”

— Naomi W.

“Hired them to wash the exterior before a big outdoor party. They finished two days before the event and the house looked so clean my guests were complimenting it all night. Fast booking, easy process.”

— Claudia R.
Got Questions?

Exterior House Washing — Frequently Asked Questions

Exterior house washing typically includes cleaning all exterior wall surfaces — siding, stucco, brick, or stone — along with fascia boards, soffits, trim, and exposed foundation walls. Depending on the property, window exteriors, garage doors, and covered porches may also be included. NorTech customizes every house wash to the specific needs of your home.
Most homes benefit from a professional exterior wash once a year. Homes in humid climates, near wooded areas, or with north-facing walls that stay shaded and damp may need washing every six to nine months to keep mold and algae from taking hold.
No — when performed correctly. NorTech technicians use the appropriate method for each surface type. Painted wood, vinyl, and stucco are cleaned using low-pressure soft washing. Brick and concrete surfaces that can handle more pressure are treated accordingly. We never use high-pressure washing on surfaces that could be damaged by it.
Exterior house washing costs depend on the size of the home, the number of stories, the type of siding or exterior material, and the extent of mold, algae, or dirt buildup. Contact NorTech for a free, no-obligation quote based on your specific property.
A standard single-story home exterior wash typically takes two to four hours. Larger homes, two-story properties, or homes with heavy biological growth may take four to six hours or longer. Our technicians will give you a time estimate at booking.
Yes. NorTech technicians pre-wet surrounding plant beds and landscaping before applying any cleaning solutions, and rinse all vegetation thoroughly after the wash. We use biodegradable, plant-safe detergents on every exterior house washing job.
Yes. Professional exterior house washing with the right soft wash solution kills mold and mildew at the root rather than just scrubbing the surface. This prevents regrowth and leaves the siding cleaner for longer compared to pressure washing alone.
You do not need to be home. We ask that all windows and doors are closed, outdoor water access is available, and the work area around the home is cleared of furniture, vehicles, and decorations before our team arrives.
Service Coverage

Exterior House Washing Services Near You

NorTech provides exterior house washing services across the United States. We serve hundreds of cities including:

View our full service territory →
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Your Home Deserves a Clean Exterior — Let’s Get It There

Get a free, no-obligation quote for exterior house washing. NorTech’s certified technicians will treat every surface of your home’s exterior with the right method and the care it deserves.

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