Roofing Contractors Billings

When you’re looking for a safe, secure home, you need the help of our Roofing Contractors Billings. Dennis General Contractor built a reputation around premier service for fast, efficient, and quality roofs to keep your home or business safe and dry. Whether you’re struggling with ice dams, existing leaks, missing shingles, or flashing issues, we can help. Learn more about our process and how the team at Dennis General Contractor brings you the quality service you need.

Roof Replacements in Billings

When your roof is in disrepair or aging, call our roofing contractors in Billings, MT. We offer stylish, durable roofs that are both eye-catching and high-performing. We’ll make sure your roof is up to the task of shielding you against daily wear and tear, inclement weather, harsh Montana winters, and so much more. Give us a call anytime there’s an issue with your roof. Delaying service can lead to ongoing damage, leaks, mold, and more.

Give us a call and the team at Dennis General Contractor will schedule a consultation to talk through your options. We also offer 3D renderings to help you envision the best roof for your property. Whether you have torn shingles or need a complete replacement, we’re here to help.

 
 
 
 
  EXCELLENT  
  
 Based on 67 reviews 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Amy Alvarado 
 
01/12/2025
 
 
 Trustindex verifies that the original source of the review is Google. 
I called Dennis General Contractor after identifying missing shingles on my roof. Within two days, Forest came out and not only evaluated my roof - he fixed it! He had a full schedule but managed to fit me in before the snow fell. I am incredibly grateful! He was amazing to work with - so responsive, detailed, and very reasonable prices!  highly recommend him and his company!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Rhonda 
 
17/11/2025
 
 
 Trustindex verifies that the original source of the review is Google. 
Offers free inspections with a roof report that highlights areas of concern. The inspector let me know I had life left in my roof when the other companies were trying to convince me to replace it right away. I appreciated her honesty and look forward to having it replaced with this company.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 CC McNeil 
 
30/10/2025
 
 
 Trustindex verifies that the original source of the review is Google. 
The whole experience from start to finish was incredible. I had called several outfits and only half even bothered to return my call. These guys came right out and discussed my options in plain, non high pressure fashion. It was a roof replacement for my pet boarding business so was important they be able to work around my schedule.
The crew was fantastic. So courteous, professional, clean and FAST! I expected to have a bit of cleanup to do after they left but they were so thorough.
The best part was dealing with Jasmyn. You are an absolute gem and I appreciate you greatly!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Matt Ryan 
 
20/06/2025
 
 
 Trustindex verifies that the original source of the review is Google. 
The team a DGC has handled multiple jobs for both myself and clients.  They have been incredibly responsive, timely and transparent in the process.  Couldn't recommend them more!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Frank 
 
19/06/2025
 
 
 Trustindex verifies that the original source of the review is Google. 
Dennis General Contractor replaced our roof shingles and did a fantastic job. The workmanship is of high quality and the crews were very skilled and professional. Because of an upcoming real estate transaction there was some urgency to the job, and they started and finished the work in a very timely manner. The quote for the work was detailed, accurate, and very reasonable. Their online portal system made contract signing and payment easy and provided transparency throughout the process. I highly recommend Dennis General Contractor for any roofing or other construction needs you might have.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Stacie Wunsch 
 
13/12/2024
 
 
 Trustindex verifies that the original source of the review is Google. 
After battling a leaking garage roof for years (!), I finally had it replaced by Dennis General Contractors. From start to finish, the team courteous, proactive, and professional. They are competitively priced and the service is off the charts. The crew had my roof done in less than three days and it makes my house look brand new. Now, I find myself still peeking into my garage on rainy days and being stoked that there are no waterfalls or puddles.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Tom S 
 
02/09/2024
 
 
 Trustindex verifies that the original source of the review is Google. 
Great experience having DGC repair our damaged roof.  Highly recommend!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Gno 1 
 
26/08/2024
 
 
 Trustindex verifies that the original source of the review is Google. 
We have a complicated roof and Forest’s crew handled it with no problems. They started and finished on time. They had great communication and easy to work with.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Linda Schell 
 
25/08/2024
 
 
 Trustindex verifies that the original source of the review is Google. 
Very happy with the roofing we had done by Dennis. The work was very well done was completed quickly/on schedule. They did an excellent job with cleanup and were very careful to avoid any damage to the landscaping. Definitely recommend.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Denise Jordan 
 
24/07/2024
 
 
 Trustindex verifies that the original source of the review is Google. 
We feel that Dennis General Contractor did a fantastic job on our roof. The people working were great! They were so meticulous about making sure that the area around our house was clean and tidy. You could tell they worked hard to make sure everything was correct. I would highly recommend them.
  
 
  
 
 
 
   
 
 
 

Repair Your Roof

Calling for roof repair in Billings as soon as you notice an issue can mean the difference between a complete replacement and a simple fix. Everything from harsh UV rays to heavy snowfalls and hailstorms could lead to damage or a premature replacement of your roof. From inspection to repair or replacement, we’ll make sure your roof is ready to perform.

Select the Right Roofing Material

When you schedule your service for your roof, you need the right materials to repair or replace it with the durability you deserve. Our roofing contractors Billings are here to help with:

Synthetic Tiles: Synthetic tiles look almost exactly like natural materials, including slate and wood. Unlike the real thing, synthetic tiles are typically less expensive and lower your overall roof maintenance. Choosing synthetic tiles are designed to handle Billings harsh weather for greater peace of mind.

Metal Roofing: Metal roofing is a good option if you’re looking for unique style and durability. They’re also known for being highly energy efficient and could even lower your utility bills. Metal roofs look sleek and sophisticated, especially after a snowfall, and will hold up against ice dams and harsh temperatures of Montana.

Asphalt Shingles: Many of our customers ask about asphalt shingles for their affordability, durability, and versatility. Choose from a range of styles and colors to reflect the personality of your home. Rest assured, asphalt shingles are designed to withstand challenging weather.

Low Slope Roofing: If you own a business, a low slope roof may be the perfect option for premier superior waterproofing and durability.  Low-slope roof are also a winner if you’re looking to prevent leaks and need a highly durable roof.

Check Your Flashing

Flashing is a type of thin material that’s resistant to rust. It’s installed in areas of your roof to keep water and other elements from entering your home. You likely have flashing around your chimneys, windows, roofs, and other areas that should have an airtight seal to direct water away from your property. When your flashing is torn, broken, or failing; you could face mold and structural damage. Give our roofing contractors Billings to take a look and get your roof back on track.

Ask About Shingle Maintenance and Roof Inspections

Dennis General Contractor also offers periodic maintenance and inspections to protect your home. Give our roofing contractors Billings a call to get started. We’ll thoroughly look over your roof and make suggestions about fixing problematic areas, identify torn shingles, and talk through your options for any repairs. Depending on the condition of your roof, we may recommend a partial or complete replacement.

Book Your Roofing Contractors Billings

Dennis General Contractor was founded with a vision to transform the roofing industry through honesty, quality, and a commitment to our community. We’ve grown our company from a sole employee to one of the premier roofing companies in Southwest Montana with top-tier roofing services that give homeowners safety and peace of mind. Call us today to get an estimate for our roofing contractors Billings.