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TRUSTED BY HELENA, MT HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon21
    Verified deck repair services reviews

Top-Rated Deck repair pros in Helena - Updated Nov 2026

Avatar for Grandchamp Painting PLLC
Grandchamp Painting PLLC
5.0(
5
)
Deck or Porch - RepairDeck or Porch - Repair - For Business

Serving Helena, MT and surrounding areas

Free estimates

Credit card accepted

"Sheldon and his team were everything you could want in a painter. Prompt communication, fair price, good advice and excellent work. They went above an beyond to fix the little things that they found. No extra cost. They even moved the wood pile away from the deck and restacked it. High marks across the board."
Recommended by100%of homeowners
Avatar for Spartan Gutter Guards
Spartan Gutter Guards
4.2(
78
)
Deck or Porch - Repair

Serving Helena, MT and surrounding areas

In business since 2020

Free estimates

Warranties offered

"In a previous review I stated I had not heard anything from the company about necessary repairs. That WAS NOT an issue with the company or its owner! It was an issue with electronic communications failure on my equipment. That issue is resolved (I hope!) I would highly recommend this company to anyone needing any type of repair for their home."
Gutter Install
Dirty, ponderosa filled gutters!
Rapid City, SD
Rapid City, SD
Rapid City, SD

+25

Response time2 days
Response rate87%
Recommended by92%of homeowners
Lapka & Sons LLC
5.0(
2
)
Deck or Porch - RepairDeck or Porch - Repair - For Business

Serving Helena, MT and surrounding areas

In business since 1972

Free estimates

Offers commercial services

"We had our back deck demolished and replaced and our side decks refinished. We love the results of both jobs. Brian and his crew worked hard and were very professional. They hauled the demolished back deck away, moved our deck furniture and raised planters off the side deck and replaced it when finished. They also extended a downspout so it would drain away from the house and built a step from the bedroom door to the back deck and moved firewood away from the deck so I didn't have to. These were all thoughtful and not inculded in the bid. All the crew was cheerful and nice to be around during the time they were here."
Response time10 mins
Recommended by100%of homeowners
Showing 1-10 of 39
Deck Repair FAQs, answered by experts

Yes, but ensuring the deck has a solid foundation with adequate footings is critical before building, as the weight of a sunroom will put significant pressure on the structure below. Even if your deck is properly constructed, it may not be able to handle the extra weight. While some basic, lightweight, prefabricated sunrooms can sit on a deck with a strong existing foundation without additional supports, in many cases, the foundation and joists will need reinforcement. It is always best to have a structural engineer perform an inspection to evaluate the deck's quality and structural integrity. A professional can help you decide if reinforcement is sufficient or if it's better to tear down the deck and start over.

In most cases, there should be a small gap between the house and the deck, usually no more than ½ to ¾ of an inch. This space allows water and moisture to flow through instead of pooling against the side of your house. It also lets flashing protect your siding from runoff, which is one of the most common issues with decks.

For a 12x20-foot (240-square-foot) deck, you can expect to pay between $7,200 and $14,400. This cost is based on a general price of $30 to $60 per square foot. The final price will depend on factors such as the decking material, design complexity, deck type, location, and local labor costs. Keep in mind that add-ons will increase the total; for example, adding an under-deck drainage system to a deck of this size could cost an additional $7,700.

PVC decking might be long-lasting, but this synthetic material lacks​​ the natural aesthetic or sustainability of wood decking. If you want to match your decking to your new garden furniture or just freshen up the faded surface, it’s not usually possible to paint PVC decking. When comparing PVC to composite decking, PVC is pricier and more prone to warping in hot regions.

The cost to repair a deck is between $900 and $3,500, depending on the cause and extent of the damage. For example, fixing a sinking deck caused by pest damage can cost between $200 and $600, while replacing sinking boards costs between $500 and $4,000.

The Helena, MT homeowners’ guide to deck repair services

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