How do I flatten a cupped deck board?

• <div><p>To flatten a cupped deck board, start by ensuring it’s dry. Then, try flipping the board over so the cupped side faces down and reattach it. If that’s not possible, you can use screws to pull it tighter to the joists or plane the edges slightly to reduce the cup. It’s best to replace severely cupped boards.</p></div>

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Q: Can you fix warped composite decking?

• <div><p>You can&rsquo;t fix warped composite decking boards, but you can replace them so your deck surface is no longer warped. For more severely warped decks, especially those with damaged joists or support beams, you&rsquo;ll need a pro to inspect the deck and recommend whether you should replace the structure or repair the damage. </p></div>

Q: What grit sandpaper is best for sanding a deck?

• <div><p>Start with a 60- or 80-grit sandpaper when sanding a deck, though this could change depending on the type of wood that comprises the deck and how smooth you want the overall finish. If you prioritize a smooth final finish, progress to a finer grit like 120 or 150. Avoid ultra-fine grits for traditional sanding, as it could close up the wood pores and make it harder to apply a finish down the line.</p></div>

Q: How do I flatten a cupped deck board?

• <div><p>To flatten a cupped deck board, start by ensuring it&rsquo;s dry. Then, try flipping the board over so the cupped side faces down and reattach it. If that&rsquo;s not possible, you can use screws to pull it tighter to the joists or plane the edges slightly to reduce the cup. It&rsquo;s best to replace severely cupped boards.</p></div>

Q: Where do deck boards often rot first?

• <div><p>Rot loves moisture, so deck rot typically impacts the parts of a board that stay wet. This includes the underside of boards, in addition to support posts and joists. However, any part of a board can rot, given the right conditions. </p></div>

Q: What is the best way to sand a deck?

• <div><p>The best way to sand a deck is by cleaning it, sanding the boards and stairs with 60- or 80-grit sandpaper, and sanding the railings and posts with 80-grit sandpaper. You should sand in the direction of the wood grain to avoid damaging the timber. When sanding your deck, use medium pressure and aim for an even sand. Pressing too hard with a sander can damage decks, as most are softwoods. </p></div>

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Verified Reviews for Deck Maintenance pros in Anamosa, IA

*The Angi rating for Deck Maintenance companies in Anamosa, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Deck Maintenance needs.

*The HomeAdvisor rating for Deck Maintenance companies in Anamosa, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Deck Maintenance needs.

Last update on November 15, 2025

Reviewed in June 2025
We needed our deck replaced. Rod came over the day we called to look things over and gave us estimates shortly after. He was upfront about his other obligations and how deck building was something he enjoyed, but sometimes other work came first. He would primarily work on it on weekends and...
Medalist Construction
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Reviewed in January 2025
Gordon Construction did a great job transitioning our old pool deck into a nice entertainment area. He removed part of the old deck, moved the stairs and rebuilt them, and installed new railings. He did a great job listening to our requests and incorporating his knowledge to achieve our desired...
Gordon Construction
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Reviewed in October 2024
Mike was so kind and did a fantastic job. He does decks, too. Highly recommend!
O'Donnell Decking
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Reviewed in March 2023
Rodney was originally hired for a drywall job through Angi list. He did a great job. I then hired him for side jobs not through Angi list. He got through half my deck replacement, bailed on the project and took my deposit and will not pay me back. Do not trust this man.
Rod's Remodeling
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Reviewed in June 2022
Great job, deck looks great.
Platinum Painting & Restoration
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Reviewed in November 2015
Not well. They left a vacuum, dining room rug, deck rug, Kitchen aide mixer. many things were poorly packed and several broken. i would not recommend using them ever. Cost was $500 over the estimate.
Always Moving Forward
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Reviewed in February 2013
Door wasn't working. Maintenance person told us to try to reset. It worked and they did not have to send anyone out. Very nice people. They will definitely get all my work. first class operation.
Dan's Overhead Doors & More
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Reviewed in December 2012
We had him do our siding and rain gutters in 2011 and knew we'd use him again for everything. This year's project was the garage door on the pole building. Coming up... a deck?
Al Borchardt & Son
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Reviewed in September 2008
In 2006, we finally decided to spend the big money and redo our deck in a gray composite decking with stairs that lead down to a decorative concrete patio. Not being many concrete companies that do this work we selected Dan's Power Concrete. Frankly I cant remember during the project whether it...
POWER CONCRETE CONSTRUCTION
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Diamond Construction and Remodeling, LLC

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Diamond Construction and Remodeling, LLC

New on AngiNew on Angi

•Approved Pro

7 years of experience

Free onsite estimate

Having been in business for a couple of years now, we understand how to keep customers happy and satisfied. Call 319-480-9250 to schedule an appointment.

Caves Service LLC

5.00(

)

•Approved Pro

Caves Service LLC

Customers say: Quick response

Recommended by 92% of Angi customers

89 local quotes requested

All your Home Service needs Transform your home with our expert services! Call us today at 319-447-7337 for sparkling results and excellent customer service. Why Choose Caves Services LLC: Quality work Experienced team Customer satisfaction Reliable service Competitive pricing

"Went great! Work was done for a great price and in a timely manor."

Matthew L on September 2025

"Went great! Work was done for a great price and in a timely manor."

Matthew L on September 2025

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Deck or Porch Repair

Handyman for Multiple Small Project Service

Deck, Fence, Patio or Porch Clean and Seal

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Diamond Construction and Remodeling, LLC

Diamond Construction and Remodeling, LLC

Caves Service LLC

Caves Service LLC

TF Contracting

TF Contracting

Arnold Home Services

Arnold Home Services

Son-InLaw Services

Son-InLaw Services

Platinum Painting & Restoration

Platinum Painting & Restoration

Zed Construction

Zed Construction

Hawkers handymans services

Hawkers handymans services

Potts Master Contractors

Potts Master Contractors

Two Guys Handyman Srvs

Two Guys Handyman Srvs

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