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TRUSTED BY CASTRO VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon88
    Verified deck repair services reviews

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

Avatar for Cal Preserving
Cal Preserving
4.7(
177
)
Deck or Porch - Repair - For Business

Serving Castro Valley, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"They started each day at 8:00 AM and worked until 5:00 or later. They were very polite and professional. The lead person George would explain what they would be doing each day and then perform the tasks. The deck looks like it is brand new and the redwood has the original color and grain. Note: the bill included 4 hours of setting the deck screws so they could sand. Otherwise they performed to the bid."
Additional Photos
Additional Photos
Additional Photos
Before
After

+13

15 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Bayside Builders Group
Bayside Builders Group
4.8(
67
)
Deck or Porch - Repair

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Super happy with our new deck from Bayside Builders Group. From the initial quote down to the final inspection, everything was handled professionally. The builders were fast, respectful of our property, and clearly knew what they were doing. The finished deck looks amazing and feels built to last. Worth every penny."
Deck Installation
9
12
Roofing and Gutter Instal
Castro Valley project

+154

Response time2 days
Response rate86%
Recommended by66%of homeowners
Avatar for Syntech Roofing and Waterproofing
Syntech Roofing and Waterproofing
5.0(
10
)
Deck or Porch - Repair - For Business

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Rocky and his team Carlos, Duan and Rubin are extremely professional, responsive and efficient. The waterproofing in my upper deck and garage floor coating are done in high quality of workmanship and careful manner. I really appreciate their positive and helpful work attitude. I highly recommend them to any home owner."
Completed Projects
Completed Projects
Completed Projects
Completed Projects
Completed Projects

+31

Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ARISTA EXTERIORS
ARISTA EXTERIORS
5.0(
9
)
Deck or Porch - RepairDeck or Porch - Repair - For Business

Serving Castro Valley, CA and surrounding areas

Approved

Free estimates

Warranties offered

Offers commercial services

"We had them do a full house siding project and it turned out great. The crew worked hard every day, kept things clean, and always let us know what was going on. You can tell they care about doing it right, not just rushing through it. The house looks completely different now and we?ve already had neighbors compliment it. Glad we went with them."
Before
Full Siding Replacement
Full Siding Replacement
Full Siding Replacement
Full Siding Replacement

+48

99 neighbors recently requested a quote
Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
17
)
Deck or Porch - Repair

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"Leo did a very extensive plumbing repair that required digging through my bathroom floor and replacing a huge pipe to the outside. He also prepared and installed piping and fixtures for a bathroom remodel. Always showed up when he said he would and had a great crew. Cleaned up as well. Would highly recommend."
Response time3 hrs
Response rate85%
63 neighbors recently requested a quote
SGB Inc.
5.0(
6
)
Deck or Porch - Repair

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"We love our new deck, and it’s all thanks to SGB. It was a pleasure working with SGB from start to finish. They are communicative, timely, and professional. Most importantly, they stayed within the original quoted price. Can’t wait to work with them again on future projects!"
Response time2 days
Response rate86%
Recommended by100%of homeowners
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Deck Repair FAQs, answered by experts

A deck doesn’t have to be perfectly level. Many pros even recommend a gentle slope to ensure proper drainage and increase longevity. The ideal gentle slope is about 1/8 to 1/4 inch per foot away from the property, leading water away from the home to prevent pooling and reduce the risk of damage. It also minimizes rot, mold, and other moisture-related problems. 

A sunroom is worth installing on a deck, both for the value and your own enjoyment. A Florida room addition costs between $10,000 and $140,000, so it’s pretty expensive. However, a quality sunroom can offer a 50% return on investment, making your home more sellable. Plus, if it’s a space you and your family enjoy relaxing in daily for years to come, it’s worth the money, time, and effort, even without the added monetary value.

Expect to spend around $10,000 to $11,000 to replace a 20-by-20-foot deck. Using high-end materials like composite or exotic hardwoods can drive up the cost, as can custom features and design elements. You can also expect to pay more than average if your deck replacement requires a site evaluation or if you need the work done during the busy season.

When building an outdoor or deck gate, it's crucial to use durable wood that can withstand harsh weather conditions like sunlight, rain, wind, and snow. Redwood and cedar are excellent choices as they naturally resist decay. While redwood is considered more elegant, cedar is a more affordable option. Other suitable woods include oak and pressure-treated pine, which is specifically treated to resist rot. Although some softwoods like pine are popular, untreated softwoods such as pine and spruce should generally be avoided for outdoor projects because they are susceptible to damage from water, rot, and the sun. Ultimately, it's wise to consider your local climate when selecting the right wood for your gate.

Whether you need a permit depends on the deck design and local regulations. Most areas mandate a building permit if the deck is over a specific height or if it's attached to a pre-existing structure. Shorter, freestanding decks may not require a permit, but you should check with local zoning ordinances and your homeowners association for specifics.

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

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