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Find Deck, fence, patio or porch clean and sealers in Diablo

Avatar for Cal Preserving
Cal Preserving
4.7(
174
)

Serving Diablo, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"CalPreserving was the total deal! I didn't know what all we needed and all the serves Iooked at seemed to offer only a piece of the puzzle, such as just power washing, or construction, or staining. This group did it all. The initial visit to assess the issues was informative and helpful. We could see our choices. They offered sound advice and looked at ways to save us money where it was possible. We ended up replacing about half the boards on the oldest deck. The finished product on both decks looks amazing -- like new. The workmen were thoughtful, knowledgeable, hard working, and polite. I was impressed that they even followed up with tips on maintaining the decks for years to come. I will definitely have them back every couple of years just to check on the decks and preserve the investments we have made in them. My highest recommendation."
Additional Photos
Additional Photos
Additional Photos
Before
After

+13

Response time6 days
14 neighbors recently requested a quote
Recommended by88%of homeowners
Select Craftsmanship General Contracting
5.0(
51
)

Serving Diablo, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Our deck was in really bad shape and needed to be replaced. Select Craftsmanship was both professional and prompt. Sobi had great attention to detail and kept us informed every step of the way. He even checked in with our neighbors when he started building the shared fences, which they really appreciated. Our new deck is gorgeous, functional, and safe. We look forward to enjoying it this summer!"
Response time10 hrs
Recommended by96%of homeowners
Avatar for Cal Preserving, Inc.
Cal Preserving, Inc.
4.6(
12
)

Serving Diablo, 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."
 Deck - before
 Deck - after
 Deck - before
 Deck - after
 Deck - before

+2

Response time2 days
24 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Color Rush Painting, Inc.
Color Rush Painting, Inc.
4.9(
38
)

Serving Diablo, CA and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"Diego and his team were very efficient and helpful with advice and willingness to include some deck repair with the washing, sanding and sealing of our 2 large backyard decks and deck bench. They did all sanding by hand (no large sanders) and painted on all stain and seal by hand. They did the work quickly and were very responsive to requests as needed as the job proceeded. The price was about 20% lower than other bids, and the personal attention to the work was really appreciated. I highly recommend and we will use them for ongoing maintenance of our decks and bench."
Walnut Creek Cabinets
Deck
Exterior
Moraga Deck
Exterior

+27

Response time8 hrs
Response rate94%
12 neighbors recently requested a quote
Avatar for Live Oak General Builder inc
Live Oak General Builder inc
5.0(
24
)

Serving Diablo, CA and surrounding areas

In business since 2016

Free estimates

Warranties offered

"I had specific requirements and it went just beautifully! I love the deck and his craftsmanship was excellent. I will work with him again. They also cleaned up after themselves and left the place perfect."
Recommended by100%of homeowners
Avatar for Kerri Landscape Services
Kerri Landscape Services
4.8(
45
)

Serving Diablo, CA and surrounding areas

In business since 1994

Free estimates

Warranties offered

"Rich met with us and thru email we finalized the plans. He sent an excellent team of workers out to do the job (Dave, Carlos, Frank & Don). They were all very considerate and helpful. They asked questions throughout the job to verify the finer details and to make sure our needs were met. They worked in mud and rain, so they hosed down the patio and all the walkways every day before leaving. The end product was well done, and everything was cleaned up when they left. Great Team! Thank You. Now the planting begins."
Recommended by95%of homeowners
Avatar for Woodiwiss Painting
Woodiwiss Painting
4.9(
117
)

Serving Diablo, CA and surrounding areas

In business since 2004

Free estimates

Warranties offered

"I remember the first time I met Toby (owner) when he came to our home for a quote. He struck me as someone I could trust with our project. He is super friendly, professional and of high integrity. My many years working with Woodiwiss has only reinforced that view. And his whole team is top notch from the crew in the field to Todd in the office. Without exception, they have exceeded our expectations. They pay attention to the details, see the project through to completion and always clean up in a very professional manner. Toby and Woodiwiss deliver high quality and value. I would highly recommend them to anyone and will continue to use them on our projects!!"
Recommended by97%of homeowners
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FAQs for deck, fence, patio or porch clean and seal projects in Diablo, CA

You should clean your deck before sealing it. Cleaning before refinishing is critical. If you don’t remove dirt and debris, you'll trap moisture in the wood, which prevents the new sealer from working correctly and can lead to costly repairs. Whether you need to sand, power wash, or sandblast depends on your deck's condition.

Sealing and staining your deck are essential maintenance methods that protect and beautify your outdoor space. Stain adds rich color and guards against fading, while sealant fortifies the wood against moisture and weather damage. Wood type, climate, deck age, and the degree of existing damage determine whether your deck benefits from one or both treatments. Using both options extends your deck’s durability and enhances its overall appearance.

Power washing and sealing your deck costs $500 to $1,700. This process combines the removal of stubborn dirt and debris with a protective seal that preserves the wood’s integrity. Effective cleaning eliminates harmful buildup, and a proper seal prevents moisture damage and wood decay, ensuring long-term durability and reducing future repair expenses.

Your deck must be sealed every one to three years to maintain its strength and appearance. Regular sealing is essential to protect the wood against moisture, mold, and harmful UV rays. A consistent sealing schedule prevents rapid deterioration and costly repairs. Inspections should be performed annually to determine if the protective layer remains intact, extending the life of your deck.

Leaving your deck untreated compromises its structural integrity and safety. An unprotected deck rots quickly due to moisture and environmental exposure, which means that neglecting sealing results in rapid decay and expensive replacement costs of $4,125 to $11,650. Sealing your deck is essential for maintaining its durability and protecting your home.

The sealant on your deck dries within a few hours and reaches full cure within 72 hours before regular use. It is essential to wait until the complete curing period to ensure the protective layer fully sets and resists weather and foot traffic. Proper drying guarantees that your deck is fully protected against moisture and environmental damage, ensuring lasting quality.

The Diablo, CA homeowners’ guide to deck, fence, patio or porch clean and seals

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