At Keenwick, we clean the concrete that carries your property’s daily traffic, from driveways and entrances to loading zones and walkways. Oil, rust, algae, and ground-in grime build up fast on a commercial surface, and we lift it away with the pressure and cleaning solutions matched to your concrete, so your property looks maintained and safe for the people who use it.
A power washing concrete driveway service does more than improve appearance. Oil stains, algae, and slick buildup create slip hazards and signal a property that is not being kept up, which customers and tenants notice.
Concrete handles pressure well, but technique still matters. The right approach lifts embedded stains and organic growth without leaving streaks or etching the surface, and it clears the grime that plain rinsing leaves behind.
At Keenwick, we assess the surface and the type of buildup first, then clean using the method best suited to your concrete. Our technicians are background-checked and trained, so you get consistent, professional results across every visit and every surface on the property.
We start by walking the exterior to identify your siding material and any problem spots, then protect nearby plants and landscaping before we begin.
We clean using the pressure and cleaning solutions best suited to your surface, then rinse thoroughly and check seams, trim, and transitions so the whole exterior looks even and clean. For fiber cement and cement board, we keep pressure low and let the cleaning solutions do the work, which protects the board and its finish.
Power washing siding pairs well with a full exterior refresh. Many homeowners schedule it alongside house washing or a broader residential power washing visit to restore the whole property at once.
Power washing siding works best as part of a full exterior refresh. Here are the related services we offer across Maryland.
Streak-free interior and exterior glass for storefronts, offices, and multi-story buildings, keeping your property looking professional year-round.
Exterior cleaning for building facades, sidewalks, parking lots, and entryways that removes stains, grime, and buildup safely.
Recurring, scheduled cleaning that keeps your property consistently clean without having to rebook each time.
Deep cleaning for sidewalks, pads, entrances, and other concrete surfaces that clears oil, rust, and organic buildup.
Removal of graffiti and tagging from concrete, masonry, and other exterior surfaces to restore a clean, professional appearance.
Cleaning and deodorizing for dumpster pads and enclosures, clearing the grease, residue, and odor that collect in high-use waste areas.
Specialized cleaning for fuel islands, canopies, and concrete pads, targeting the oil, fuel residue, and traffic grime specific to gas stations.
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laura baker2 days agoTrustindex verifies that the original source of the review is Google.
Keenwick staff did an awesome job cleaning our windows and screens!Posted on Google![]()
Robert Miller8 days agoTrustindex verifies that the original source of the review is Google.
Keenwick did an outstanding job cleaning my exterior windows this morning. I highly recommend this company.Posted on Google![]()
Carolynne9 days agoTrustindex verifies that the original source of the review is Google.
Always do a good job. They get the ugly black stuff off the decks and railings! Do a good job on the windows, get it done quickly. Always pleasant. Fair pricing.Posted on Google![]()
Teresa Sadeghin9 days agoTrustindex verifies that the original source of the review is Google.
OMG! This service was unbelievable! Punctual, respectful, on target with his work and we just can't say enough positive!Posted on Google![]()
Dennis Keppley13 days agoTrustindex verifies that the original source of the review is Google.
This company is wonderful to work with. The offic personnel were so helpful and kind. Our windows were completed promptly and in a professional manner. Overall, a great job by all.Posted on Google![]()
cDolores Provins13 days agoTrustindex verifies that the original source of the review is Google.
work was done on time, promptly, and efficiently. Work was also done well.Posted on Google![]()
Alfred Edwards14 days agoTrustindex verifies that the original source of the review is Google.
Eric was here on time and worked diligently to remove the iron deposits on my house. Considering the challenge, he did a great job and I am very happy with the results. I strongly recommend Keenwick for home/house cleaning requirements.Posted on Google![]()
Thaddeus Toal21 days agoTrustindex verifies that the original source of the review is Google.
The service was outstanding. The guys were complete gentlemen, and very hard workers,Posted on Google![]()
Tammy Mills21 days agoTrustindex verifies that the original source of the review is Google.
did a great job. but o little on the expensive side .I had everything moved and ready to go as usual .Took them less than 45 minutes start to finish .Posted on Google![]()
Kevin Setzer26 days agoTrustindex verifies that the original source of the review is Google.
Great communication and fast scheduling. Thanks for a great job!
It depends on the size of your home, the type of siding, how much buildup is present, and whether you bundle it with other exterior cleaning. Cement board and fiber cement take a careful low-pressure approach, which affects the scope of the job. We do not use one flat price for every house, so the honest answer is to reach out for a free quote based on your specific property.
It can if the wrong pressure or angle is used. High pressure can crack older vinyl or force water behind the panels, where it can lead to mold. We clean vinyl with a soft washing method that removes dirt, mildew, and buildup at low pressure, so the siding gets clean without the damage.
Yes, when it is done carefully. Fiber cement and cement board siding clean up well with a low-pressure soft washing approach that lifts algae and grime without cracking the board or driving water behind it. We keep the pressure down and let the cleaning solutions do the work, which is the safest way to power wash this kind of siding.
Low pressure paired with the right cleaning solution. Cement board and fiber cement hold up better to a gentle soft wash than to a high-pressure blast, which can chip the surface or work water into the seams. We apply a cleaning solution to break down algae and buildup, then rinse at low pressure so the board and its finish stay intact.
A cleaning solution matched to the buildup, applied before rinsing, does most of the work. For algae and mildew we use a soft washing solution that breaks the growth down so it rinses away at low pressure instead of relying on force. We handle this as part of the service, and we protect nearby plants and landscaping before we start.
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