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Crystal CleanA1 Window Services
(805) 952-5718

Patios, walkways, pool decks and pavers

Concrete Cleaning Services in San Luis Obispo County

Patios, walkways, pool decks, pavers and stamped concrete, washed at a pressure the surface can actually take. Corey Byler is the one on the job, and nothing goes back on the truck until you have walked the dry concrete with him.

Mon to Sat, 7am to 6pm  ·  License #17881  ·  Insured to $1,000,000

Get a fast quote, it takes about five seconds

Shade, salt and harvest dust each wreck flatwork differently

Which one you are fighting decides the pressure, the chemistry and the time of year.

Concrete around here does not get dirty so much as it gets grown on. A north facing walkway under a coast live oak in Los Osos or Cambria sees almost no direct sun between November and April, and the fog holds the damp in all day. Algae roots in the pores of the surface, then moss follows in the joints. Through our long rainless summer it looks like nothing worse than a gray stain. The first real rain in October is when people find out it is slick, usually on the way out to the bins.

Get within a couple of blocks of the water in Cayucos, Pismo Beach, Shell Beach or Avila Beach and there is a second problem underneath the first. Salt carried in on the marine layer soaks into the top few millimeters of the slab, crystallizes as it dries, and pushes the surface off in flakes. That is spalling, and a pool deck gets it worst because it takes salt air and chlorinated splash out at the same time. Hit a deck like that with high pressure and you take another layer off yourself.

Inland the dirt is different. Harvest dust settles over patios in Paso Robles, Templeton, Creston and the Edna Valley every autumn, and on stamped concrete it packs down into the texture where a hose will never reach it. Sprinkler overspray off hard well water leaves a chalky bloom along the edge of a patio, and efflorescence pushes more of the same up through pavers from underneath. Pavers carry their own trap: the sand in the joints is structural, and a wand held too close strips it out, so the pavers start to rock and weeds move in.

How a patio job actually runs

Same crew, same owner, every time. Nothing on your property is handed to a subcontractor, so the man who quoted the patio is the man kneeling on it.

  1. We work out what the surface is before we pick a pressure

    Plain broom finish, stamped, integrally colored, exposed aggregate, brick and pavers all take different handling, and a coastal slab that is already flaking takes less than any of them. We test a patch out of the way first, usually behind a planter, and show you the result before the rest gets touched.

  2. Plants, pool and drains get sorted first

    Patios drain toward planting beds and pool decks drain toward the pool. Beds get soaked down before anything goes on the concrete so nothing takes a concentrated hit, and runoff gets pushed away from the water. Ten minutes of setup saves your hydrangeas and your pool chemistry.

  3. Treatment first, so the growth dies instead of just moving

    Algae and moss get a treatment and time to dwell rather than a blast. Sandblast the green off and the roots stay down in the pores, so it is back within a season. Killing it first is why a shaded Los Osos walkway is still clean the following spring.

  4. A surface cleaner across the field, hand work on the edges

    A surface cleaner runs jets on a spinning bar under a hood, so the slab gets an even wash instead of the striping you get from waving a wand about. It cannot reach the last inch against a wall, the radius of pool coping, the front of a step or the gap between two pavers, so those get done separately and further back, at a distance that leaves joint sand where it is.

  5. Rinse it down, let it dry, then walk it with you

    Wet concrete lies to you. Everything looks even until it dries, so we rinse the whole thing off, let it come back, and then walk the patio with you. Anything you are not happy with gets put right there and then, before we pack up.

What is included

  • Patios, walkways, side yards, steps, landings and porches
  • Pool decks and coping, with runoff kept out of the water
  • Stamped and colored concrete washed at a pressure set for the color, not for the machine
  • Exposed aggregate cleaned without pulling stones out of the matrix
  • Pavers and brick, edges and joints included, with the joint sand left in place
  • Algae and moss treated so they die rather than get blasted off and grow straight back
  • Planting beds soaked down and protected before anything goes on the concrete
  • A walk around with you on dry concrete before we leave

What we do not do

Worth saying plainly, so nobody is waiting on something we were never going to do.

  • Driveways. Same crew and the same equipment, but it is a different job priced differently, so it has its own page.
  • Sealing or resealing. We will tell you what condition the old sealer is in and when it is due, then a coatings applicator does that work.
  • Concrete repair. Cracks, sunken slabs, resurfacing and rebuilding a spalled edge belong to a concrete contractor. We clean, we do not patch.
  • Relaying or releveling pavers. If one rocks or a joint has dropped we show you, but resetting the base is somebody else's trade.

Real reviews, real Central Coast addresses

The light literally shines brighter

Every word below is lifted straight from Corey's Google profile. Nothing written by us, nothing tidied up.

Crystal Clean was at our house this morning to clean all the windows on the first and second story and did a wonderful job. Corey is a perfectionist and is very detail oriented. He cleaned the windows inside and out, cleaned the screens, cleaned the tracks, and even all the window sills.
Mark MWindow cleaning, inside and outa month ago
Had our windows and solar panels cleaned. WOW! I keep looking out the windows because I can't believe how clean they are. Corey's team is fast and hard-working, too. We are so glad we had this done!
Karol CollyerWindows and solar panelsa month ago
Corey and his crew are just amazing. On time, fast, great price and a stunning outcome! Terrific communication ahead of time. After he cleans our windows, the light literally shines brighter. Love it!
Maggie CoxWindow cleaninga month ago
Cory and team did a fabulous job on our Cayucos Beach house window cleaning, inside and out. Our house looks brand new again! Very responsive and easy to work with. Great price as well. We will definitely use them again.
Kristin OlsonCayucos · Beach house window cleaning2 years ago
The best!!! On time, very confident and considerate inside our home as well as outside. Corey and his son are very professional at what they do. 2 objectives we needed done. 1 very hard to reach interior skylight and our solar panels needed cleaning. We will definitely have them back on a yearly maintenance plan for sure.
Jim & Sandy ClarkGrover Beach · Skylight, solar and gutters3 years ago
Communication was top shelf. Timely, arrival and departure. Fairly priced to local competition. Professional, beginning to end. Ran a clean operation, wore booties over shoes inside without asking, never noticed they were here after they left due to picking up after themselves. Our 3 story home was no easy task but they managed to clean all of our 27 windows just fine.
Marc G3 story home, 27 windows5 years ago
If I could give Crystal Clean 10 stars, I would! My pergola was extremely dirty and moldy as my home power washing attempts could never get it clean. I was considering taking it down it was such an eyesore. It now looks brand new without a trace of mold to be found!
Janice MehringPergola mold removal2 years ago
Cory was responsive from our very first contact, always following up and showing up. And our windows are literally sparkling, which I thought was just a phrase. The company uses soft water which reduces water stains.
Pamella WoodWindow cleaning8 months ago
Crystal Clean A1 has cleaned the solar panels on our house and HOA pool house twice now. Both times they were easy to communicate with, arrived as scheduled, and did a thorough job for a reasonable price. They're an easy company to recommend.
Matthew BudraitisResidential and HOA solar2 years ago
I've never seen my windows so clean!! Not only did they clean all our windows but our screens, solar panels and gutters! Very professional and fast! I would definitely use again and recommend you do too!
Melissa MudgettWindows, screens, solar and gutters5 years ago
Corey has cleaned probably close to 20 houses of windows and solar panels and a driveway or two. I have always been more than satisfied with the work and he always goes above and beyond for a fair price.
Aaron RobertshawWindows, solar and drivewaysa year ago
Cory was the ultimate professional. Great communication, timeliness and did an amazing job! I cannot recommend him highly enough. This is my second time using his services and I would highly recommend him, you will be pleased.
SueRepeat customer6 months ago
Corey was professional, responsive, and did a fabulous job cleaning my windows inside and out. I highly recommend Crystal Clean A1.
Dianne CoppengerWindow cleaning3 months ago
Excellent work cleaning my homes windows. This is the second time I have had this company out and they have once again exceeded my expectations. I will continue to be a return customer.
Kaelan ClarkRepeat customera year ago
Double glaze window cleaning perfection. At last a window cleaning company that really provides service. Timely and professional. Most window companies fall apart after first visit. For now 10 out of 10. Look no further, you found it.
Tracey DeakinDouble glazing6 years ago

What concrete cleaning costs around here

Central Coast market rates for flatwork run roughly $0.20 to $0.45 a square foot on plain concrete patios and walkways, higher for pavers and stamped work, and small jobs usually meet a minimum somewhere between $150 and $250. Those are regional ranges so you know what normal looks like. They are not our quote. Send an address and a rough idea of what you have and you get a real number.

  • Square footage, and the shape of it

    The open middle of a patio goes quickly. Edges, steps and risers do not. A long narrow walkway is nearly all edge, so it costs more per square foot than a wide open slab of the same area.

  • What the surface actually is

    Plain broom finish is the fast one. Stamped, colored, exposed aggregate and pavers all need lower pressure and more hand work, which means more time on the same square footage.

  • How much growth is on it

    A patio washed last year rinses off. A shaded walkway that has been going green under an oak for five seasons needs treatment, dwell time and often a second pass before it comes back.

  • Condition of the concrete

    A coastal pool deck that is already spalling has to be worked slowly at low pressure, and sometimes the honest answer is that it will come up clean but it will not come up new.

  • Water and drainage access

    A spigot near the patio makes it simple. Hillside lots around San Luis Obispo, courtyards you can only reach through the house, and pool decks where every gallon of runoff has to be steered somewhere all add time.

  • Whether other work happens the same visit

    Patio, walkways and pool deck done together in one setup cost less than three separate trips out, because most of the cost is getting the gear in place.

No obligation, no pressure, no call center

We Guarantee 100% Satisfaction

Every job finishes the same way: a walk around with you before we pack up, so anything you are not happy with gets put right there and then. Corey Byler is the one doing that walk around. Business License #17881, insured to $1,000,000, and no part of the job handed to somebody else.

Crystal Clean A1 working from a ladder on a two story property in San Luis Obispo County

Concrete Cleaning questions we get asked

How often should a patio or walkway be cleaned on the Central Coast?
Once a year suits most properties, and the best window is late summer or early autumn, before the first rains. Shaded and coastal ground needs it more often. A north facing walkway in Cambria, Los Osos or Morro Bay that holds fog damp most of the day can go green again in a single wet season, so twice a year is realistic there. Open sunny patios inland around Paso Robles, Templeton and Creston often hold up for two years if nothing is dripping on them. The simple test is underfoot: if the surface feels slick when it is wet, it is already overdue.
Will pressure washing ruin stamped or colored concrete?
Pressure washing can ruin both, which is exactly why the pressure comes down rather than up. Stamped and integrally colored concrete carries its color in the top layer, and a high pressure wand held close will strip it, etch the pattern and leave permanent wand marks that no amount of later cleaning hides. Done properly the job is a treatment left to dwell, then a surface cleaner run under a hood at much lower pressure so the wash is even across the whole slab, then hand work on the edges. Crystal Clean A1 tests a patch out of the way first and shows the customer that patch before the rest of the patio is touched.
Why is my walkway slippery, and how do I stop it coming back?
A slippery walkway is almost certainly algae rather than dirt. Concrete is porous, and anywhere shaded holds enough moisture for algae to root in the surface, which turns greasy the moment it is wet. Blasting the green off looks like a fix but leaves the roots down in the pores, so it returns within a season. The lasting answer is a treatment that kills the growth before anything is washed, then a wash at a pressure the slab can take. Cutting back whatever is shading the path and fixing a sprinkler that oversprays it will stretch out the time before it comes back.
Can pavers be cleaned without blowing the sand out of the joints?
Yes, but only if the pressure and the distance are right. Joint sand is structural: it locks pavers against each other, and once it is gone the pavers rock, the edges chip and weeds find the gaps. A high pressure wand held close empties a joint in seconds. The safe method is a treatment for the growth, a surface cleaner across the field so no single spot takes a concentrated hit, and hand work along the joints and edges from further back. If joints are already low before we start, we point that out rather than making it worse.
My pool deck near the beach is flaking. Can it still be cleaned?
Yes, carefully, though cleaning will not undo the flaking. That flaking is spalling, caused by salt working into the top few millimeters of the concrete and crystallizing as it dries. Pool decks in Pismo Beach, Shell Beach, Avila Beach and Cayucos get it worst because they take salt air and chlorinated splash out together. A spalling deck has already lost surface strength, so high pressure takes more of it off. It gets washed at low pressure with the chemistry doing the work, and runoff steered out of the pool. If a section is past cleaning, you hear that before we start rather than after.
What is the white chalky film along the edge of my patio?
Usually one of two things: efflorescence or hard water. Efflorescence is mineral salt inside the concrete itself, dissolved by moisture and left on the surface as a white bloom when the water evaporates, and it is common on pavers and on any slab that stays damp. Hard water is the same look coming from the outside in, mostly sprinkler overspray, which is why patios on well water around Paso Robles, Templeton and Creston get a chalky line exactly where the heads reach. Neither one is dirt, so scrubbing harder just wears the surface out. Both need the right treatment instead of more pressure.

Service area

One truck, the whole county

From the fog line in Cambria down to Santa Maria and inland through Paso and Creston. If you are on this list we get out to you. If you are just off it, call anyway and we will tell you straight.

Ready to see what your glass actually looks like?

Send an address and we will get you a real number. Residential or commercial, anywhere from Cambria to Santa Maria.

Monday to Saturday, 7:00 AM to 6:00 PM ·  Owner operated  ·  Nothing subcontracted

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