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Crystal CleanA1 Window Services
(805) 952-5718

Wood and composite

Deck and Fence Cleaning Services in San Luis Obispo County

Wood decks, redwood and cedar fencing, composite boards, pergolas and trellises, cleaned at a pressure the timber can actually take. Corey Byler is the one on site, and the job is not finished until you have walked it with him.

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

Get a fast quote, it takes about five seconds

A deck is not a driveway, and softwood does not forgive

The tool that cleans concrete in ten minutes will ruin a redwood board in ten seconds.

Most fencing on the Central Coast is redwood or cedar, and most older decks in San Luis Obispo, Arroyo Grande and Cambria are one or the other. Both are softwoods. The spring growth in every ring is soft and the summer growth is hard, so a narrow tip held close blows the soft bands out and leaves the hard ones standing. What you get is furred fibre, ridges and wand marks that never sand out of a horizontal deck board. It takes four seconds to do and a full refinish to undo.

West of the ridge the damp never really leaves. In Cambria, Baywood-Los Osos, Morro Bay and Cayucos the fog sits until noon for months, so the north face of a fence and the shaded half of a deck stay wet through a summer that never rains. That is where the black and green film grows. It is slick underfoot on stair treads, it works down into open grain, and on composite boards it settles into the embossed grain pattern where a broom will not reach it.

Inland the problem inverts. Paso Robles, Templeton, Creston and Atascadero go five or six months with no rain and plenty of afternoons over 100 degrees, and UV breaks down the lignin at the wood surface until it goes silver. Harvest dust settles into that open grain every autumn. People see the gray and ask for the deck to look new, which is a different request from clean. Gray is dead surface fibre. You can strip down to bright wood, but you have removed wood to get there.

How we clean wood without wrecking it

Same crew, same owner, every job. Nothing is handed to a subcontractor at any point, so the person who quoted your deck is the person standing on it.

  1. We test the boards before we pick a pressure

    Soft rot, boards that were furred by somebody else years ago, failing stain, popped nails and rust runs around fasteners all get found before we start rather than after. A sound redwood rail and a tired fir board that has already been blasted twice do not get the same treatment, and you hear which one you have.

  2. The cleaner does the work, the water only rinses

    A wood safe cleaning solution goes on and is given time to sit. That is what kills mold down in the fibre instead of shaving the top off it and watching it come back by winter. Then we rinse with a wide fan at roughly garden hose pressure, held well back. Soft washing in principle, sized for timber.

  3. Rinsing along the grain, board by board

    Wand marks come from stopping, from changing distance and from cutting across the grain. We run each board end to end at a fixed distance with every pass overlapping the last. On fences we work top down so nothing streams over a panel that has already started to dry and leaves a tide line.

  4. Plants, stucco and the concrete underneath get looked after

    Landscaping gets soaked before we start and rinsed again after. Wet redwood and cedar throw tannin, and that runoff stains stucco, pavers and light concrete if it dries where it lands. So it gets flushed off while it is still wet, not found by you a week later.

  5. We walk it with you

    Every job ends with a walk around before we pack up, and anything you are not happy with gets put right there and then. On a deck we also tell you how long to leave it before any stain or sealer goes on. That is the whole satisfaction guarantee.

What is included

  • Deck boards, stair treads, rails, posts and balusters, not just the flat surface
  • Fence panels cleaned on both faces where we can get to them, including the shaded side that holds the mold
  • Pergolas, arbours, trellises and patio covers, overhead work included
  • Composite and capped composite decking cleaned at a pressure those boards tolerate
  • Black and green growth taken out of the grain rather than skimmed off the top
  • A straight answer on tannin bleed and rust runs around nails and screws, and whether they will lift
  • Landscaping pre soaked and rinsed, and tannin runoff flushed off stucco, pavers and concrete before it dries
  • A walk around with you before we leave

What we do not do

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

  • Staining, sealing and oiling. We clean the wood and tell you when it is dry enough to coat. Somebody else brushes it on.
  • Sanding or refinishing. If a previous blasting has furred the boards, cleaning will not lay that fibre back down.
  • Carpentry. Rotten posts, soft treads and loose rails get pointed out to you, but a carpenter replaces them.
  • The concrete patio or path the deck sits next to. Different surface, different process, quoted separately.

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 deck and fence cleaning costs around here

Central Coast market rates for cleaning a wood deck run roughly $0.75 to $2.00 per square foot, so most residential decks land somewhere between $200 and $600. Fencing usually prices by the run, roughly $2 to $5 per linear foot for a standard six foot panel done on both faces. Those are regional ranges to set expectations, not our quote. Tell us the size and the material and you get a real number instead of a guess.

  • Square footage plus everything vertical

    The flat deck surface is the fast part. Rails, posts, stair risers and forty balusters are mostly hand work, and they can outweigh the floor.

  • Wood or composite

    Composite cleans faster and behaves predictably. Softwood needs dwell time, a lighter rinse and more care per square foot, so it takes longer.

  • How long since the last clean

    Three years of black on a shaded Los Osos fence needs a second application and a longer dwell. A fence cleaned last year is one pass.

  • Condition of the timber

    Cupped, checked or already furred boards need slower work and a gentler rinse. Occasionally the honest answer is that the wood is past cleaning and you are looking at replacement.

  • Access

    Hillside decks up on posts, gates too narrow for gear, shrubs planted hard against a fence line and panels that face into a neighbor's yard all add time.

  • Whether you are sealing afterwards

    A deck being prepped for stain has to come up even across every board, edge to edge. That is a fussier job than a maintenance wash.

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

Deck and Fence Cleaning questions we get asked

Can you pressure wash a wood deck without damaging it?
Yes, but only if the pressure stays low and a cleaning solution does the actual work. Redwood, cedar and fir are softwoods with alternating soft and hard growth rings, so a narrow tip held close carves the soft bands out and leaves the board furred and marked for good. The safe method is to apply a wood safe cleaner, give it time to sit and kill the growth, then rinse with a wide fan at roughly garden hose pressure, running along the grain of each board rather than across it. Crystal Clean A1 cleans decks and fences this way across San Luis Obispo County, Monday to Saturday, 7:00 AM to 6:00 PM.
Will cleaning bring a gray deck back to its original color?
Partly, and it depends which sort of gray you have. Some of it is dirt, mold and algae sitting on the surface, and that comes off in a normal clean, which alone can take years off the look of a deck. Underneath that, gray is UV damage. Sunlight has broken down the lignin in the top layer of fibre, and the only way to reach fresh color is to remove that layer. It can be done with a wood brightener and careful work rather than raw pressure, but you are taking wood off the board, and stripped wood grays again faster than it did the first time. You will get told which sort you have before any quote.
Can composite decking be cleaned the same way as wood?
Composite is cleaned more easily than wood but it is not indestructible. Most manufacturers allow washing while capping the pressure and forbidding a narrow tip, because high pressure permanently scars the cap layer and that damage can void a warranty. It never weathers out. Mold is still the usual complaint on composite, especially on shaded boards in Los Osos, Morro Bay and Cambria, where it grows in the embossed grain pattern that is meant to look like wood. That grain is why sweeping does nothing. A cleaning solution left to dwell and a low pressure rinse pulls it out.
How do you get black mold off a redwood or cedar fence?
With a cleaning solution and dwell time, not with force. The black is a living growth rooted in the top layer of fibre, so blasting it removes the surface it is sitting on and leaves the wood rough, and rough wood holds moisture and regrows faster than smooth wood. The right approach is a wood safe cleaner applied to the panel, left long enough to work, then rinsed at low pressure from the top down. On the coast in Cambria, Baywood-Los Osos, Cayucos and Morro Bay, where fog keeps the shaded face damp all summer, fences want doing every year or two. Inland around Paso Robles and Creston, every two to three years is normal.
Can a moldy pergola be saved or does it need replacing?
A moldy pergola can usually be saved. Mold and algae are surface growth, not rot, and the timber under a black pergola is often perfectly sound. One review on our Google profile is from Janice Mehring, whose pergola was so heavily molded she was about to tear it down. It got cleaned instead. The test is simple and you can do it yourself: press a screwdriver into the posts at the ground line and into the beams at the joints, where water sits. If the wood is firm it will clean up. If the tip sinks in, that is rot, and rot is a carpenter's job rather than a cleaning job.
How long after cleaning should I wait before staining or sealing?
Give it a few dry days. Wood takes on a lot of water during a clean, and coating over trapped moisture is how a finish goes cloudy, blisters or peels inside a season. Two or three dry days is usually enough for a deck in full sun inland around Paso Robles, Templeton or Atascadero. A shaded deck in Cambria or Los Osos during the summer fog can want closer to a week, because the marine layer keeps it damp until midday. We do not stain or seal, so we have no reason to rush you. We clean it, and we tell you when it looks ready.

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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