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Find Deck, fence, patio or porch clean and sealers in Castro Valley

Avatar for Kerri Landscape Services
Kerri Landscape Services
4.8(
45
)

Serving Castro Valley, CA and surrounding areas

In business since 1994

Free estimates

Credit card accepted

"Rich and his crew were fantastic. They went above and beyond in many areas, and were always terrific with communication about all of the aspects of the project. They fully landscaped our front yard, including abundant lighting, and replaced the sprinkler system throughout the property. They were a pleasure to work with and the end product is the envy of the neighborhood."
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+8

Recommended by95%of homeowners
Avatar for Almeida & Son Painting & Construction Inc
Almeida & Son Painting & Construction Inc
4.9(
97
)

Serving Castro Valley, CA and surrounding areas

In business since 1997

Free estimates

Credit card accepted

"ALMEIDA & SON WERE PHENOMENAL! RESPONDED TO MY PHONE CALL WITHIN THE HOURS, AND PROVIDED QUOTE REQUEST SAME DAY. CREW WAS CONSCIENTIOUS ABOUT CLEAN UP AND MAINTAINED AN EFFECIENT OPERATION. THEY WERE THOROUGH IN THEIR PREP WORK AND APPLICATION OF PAINT. DOOR WASPAINTED A RED, AND MOST CAUTIOUS ABOUT NOT SPREADING THE COLOR OTHER THAN ON THE DOOR! :) WOULD HIRE AGAIN IN A HEART BEAT CANT RECALL APPROX DATE OF SERVICE; OCCURRED IN SPRINGTIME"
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+2

Recommended by96%of homeowners
Avatar for Halo Home Services
Halo Home Services
4.9(
17
)

Serving Castro Valley, CA and surrounding areas

Free estimates

Credit card accepted

"John was very thorough and courteous, he walked me around my home after his inspection to show me the problem areas and explained to me what is needed. I was told I would get an estimate for treatment/repairs today. Very pleased with the service thus far!"
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+27

Recommended by100%of homeowners
Avatar for Crowworks Construction
Crowworks Construction
5.0(
33
)

Serving Castro Valley, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

We are a licensed and bonded General Contractor with the state of California. Crowworks as a company has received the Angie's List Super Service Award for five years straight! Less than 5% of contractors on Angie's list are awarded this award annually. We will help you with every step of your project from consultation , design, permits and every aspect of construction. You bring the desire and we bring the experience and expertise to make it happen.\n Crowworksdesign.com

Sunroom
Water fall sink
Kitchen
Before
After

+21

Recommended by96%of homeowners
Avatar for Cuevas Lumber & Fence
Cuevas Lumber & Fence
4.8(
171
)

Serving Castro Valley, CA and surrounding areas

In business since 2002

Free estimates

"They installed about 160 feet of redwood privacy fence with three gates and an additional gated enclosure for a heat pump. For the wood fence itself they did excellent work. Quality material and accommodated some unusual features which meant the entire job was done by one contractor. The owner suggested and installed special gate latches that allow entry with a code on a keypad, which actually got them the job. Their failing was the crew doing the work did not understand how that special gate latch worked, and how to construct a gate to properly use it. I am handy with tools so I was able to spend a day to modify and add to their work to make the latch work. Not everyone is in a position to do that. They over-promised in that crew doing the actual installation needed more guidance for a completely successful installation. So if you have a standard fence and gates with standard Home Depot style hardware, I would recommend them. But if you need something unusual they really are not able to handle it and you need to plan to get that skill set elsewhere."
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+5

Recommended by93%of homeowners
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FAQs for deck, fence, patio or porch clean and seal projects in Castro Valley, 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 Castro Valley, 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.