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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon251
    Verified deck cleaning services reviews

Top-Rated Deck cleaning pros in Castro Valley - Updated Nov 2026

Avatar for Cal Preserving, Inc.
Cal Preserving, Inc.
4.5(
15
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Castro Valley, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Very easy to work with. I'd used them before but this time I got estimates from other contractors and was amazed how much more reasonable Cal Preserving was. The difference may be that the others pointed to additional steps that could be taken. Did Cal Preserving "miss" these things or recognize they weren't necessary--I'm inclined to believe the latter."
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+2

Response time2 days
17 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for SurfaceRenu
SurfaceRenu
4.5(
40
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Castro Valley, CA and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"They did all of the window panes, even though I miscounted and I was just over the 20 offered in the Big Deal (I was counting windows, not panes).  The guys were friendly, fast, and professional.  The glass was sparkling!  I didn't want to pay extra for deep cleaning of the screens, but they were much improved, even with the basic cleaning.  The one area that could have been improved was the gutters.  They were very dirty and I expected them to be cleaned completely.  However, there was still a lot of dirt in them.  I can't complain too much because I only paid $99 and the clean windows were more than worth the price.

"
Recommended by86%of homeowners
Avatar for Ramirez Landscaping & Concrete
Ramirez Landscaping & Concrete
4.8(
44
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Castro Valley, CA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Roberto took care of or lawn maintenance at our previous home. We bought a new home (new construction) in Discovery Bay. We had him give us an estimate to landscape the entire backyard and side yard. His estimate was VERY AFFORDABLE! We agreed and he and his crew started that next Monday. Roberto and his crew are punctual, clean, honest, respectful and the hardest working crew we’ve ever came across. We had concrete poured, sod installed, added drainage throughout, irrigation and so much more. Entire project took 3 weeks!! AMAZING!! I loved coming home and seeing so much progress done everyday. Our yard is more amazing than we ever expected. We are beyond happy with the results. We have recommended Roberto many times since our yard has been completed, in the past 2 weeks. He is AMAZING along with his crew. ⭐️⭐️⭐️⭐️⭐️ 5 stars . We could not be happier! Thank you so very much!!! - Michael and Erika"
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+80

Recommended by94%of homeowners
Palm Construction, Inc.
5.0(
90
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Castro Valley, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Recommended by100%of homeowners
Avatar for Fine Point Painting
Fine Point Painting
4.6(
54
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Castro Valley, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"Bill and his team did a FANTASTIC job painting our new home that was in need of some bright new paint.  The walls were in pretty awful shape with lots of dings, drywall issues, some walls needing wall paper removal not to mention the crown molding either needing to be replaced or smoothed out.  Bill came for an estimate right away when I contacted him (accommodating after work hours) and spent a lot of time with me discussing how he'd do the job and explaining different aspects of painting to me. I had a lot of questions and he was patient and so informative.  He also happily came back out to the house to answer follow up questions before he started the job.
He arrived with his crew on time right when he said he'd start the job and they finished on time in 4 days. I couldn't believe the amount of prep work they did to get the walls in good shape to paint and in the end, it looks amazing. Everyone compliments me on what a great job they did and how good the house looks now- it's amazing what paint can do!
Bill is so knowledgeable and is always happy to answer your questions.   He also will let you proceed as you planned without complaint (I really wanted to use BM colors vs. color matching to Behr paint) and go the extra mile to make sure you are happy with the job in the end.  He even spaced out painting the bedrooms so I'd have somewhere to sleep each night!
The tape job they did to make sure none of our stuff was damaged was impressive and they cleaned up so well. His crew is friendly, professional, and I had no problem letting them come into the house each day while we were at work to do the job.
We will have them back to do some other paints jobs we have planned, but we so happy we found Bill and his team!
"
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Recommended by93%of homeowners
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Deck Cleaning FAQs, answered by experts

That depends on the condition of your deck. An older deck that looks drab, worn, or has multiple damaged boards might be worth replacing before selling. However, if your deck is in good condition, you can simply clean, repaint, or stain it.

Local building codes don’t specify the number of steps a deck can have before a railing is required, mainly because stair height varies widely. Most areas require decks 30 inches or higher to have a railing. While not exact, that roughly equates to four to seven steps.

When installing deck boards, screws are generally a better option than nails. Screws offer superior holding strength over time, keeping the boards securely in place. In contrast, nails are more likely to pop out, which can create a tripping hazard. While you can use either, we recommend using 3-inch galvanized deck screws. To minimize the risk of cracking the wood, it's a good practice to drill small pilot holes before driving the screws into the deck joists.

No, you don’t need a permit to repair and replace a few boards on an existing deck. However, if you’re making structural changes to the deck or tearing down the old one and building a new one, you will likely need a permit. Check with your local municipality for the regulations and rules in your area, or ask a local contractor who builds decks for advice.

There are a variety of second-story deck privacy ideas depending on your budget and aesthetic. For starters, you might consider fencing or tall privacy railing that masks a good portion of the open deck. A pergola or an awning can provide additional cover and shade. Outdoor curtains are an easy way to add or remove privacy at your convenience, plus they’re a wallet-friendly way to decorate your deck.

The Castro Valley, CA homeowners’ guide to deck cleaning services

From average costs to expert advice, get all the answers you need to get your job done.