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Top-Rated Roofers in Alton - Updated Nov 2026

Avatar for Legacy Roofing Systems LLC
Legacy Roofing Systems LLC
4.7(
3
)
Metal Roofing - Repair - For BusinessFlat, Foam or Single Ply Roofing - Repair- For BusinessSealant for Roof - Apply- For Business

Serving Alton, MO and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"I needed a roof repair and was tired of having to patch up every other week it felt like. I had some quotes to replace the roof and luckily I found Ryan who helped me save 1/2 of the cost on a roof replacement! Then with his services coming with a warranty just made sense."
MR System
MR System Sample
SPF System Metal
SPF System Flat
SPF System Sample

+1

Response time3 days
Response rate97%
4 neighbors recently requested a quote
Avatar for EXCEPTIONAL ROOFING LLC
EXCEPTIONAL ROOFING LLC
3.7(
3
)
Sealant for Roof - Apply- For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace- For BusinessMetal Roofing - Repair - For Business+5 more

Serving Alton, MO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"They went above and beyond expectations even going as far as helping with the insurance end. Jeremy and Ronnie were very professional and friendly. Installation was done in a timely manner. Highly recommend as I had an exceptional experience!"
Taylor Automotive
Taylor Automotive
Taylor Automotive
Taylor Automotive
Taylor Automotive

+16

Response time9 hrs
Response rate93%
24 neighbors recently requested a quote
Avatar for PaintWorkx
PaintWorkx
4.8(
5
)
Roof - Clean

Serving Alton, MO and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"Always on time. Finished early. They was very nice and I would definitely hire them again. They did exactly what I wanted and it looked amazing! I have zero complaints. I will definitely be recommending them!"
Response time30 mins
Recommended by100%of homeowners
Avatar for A+ Constructors LLC
A+ Constructors LLC
New to Angi
Asphalt Shingle Roofing - RepairInspection - RoofingMetal Roofing - Install or Replace+2 more

Serving Alton, MO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

With years of experience serving the area, we are your solution for all your construction needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed! \n \n

Avatar for Southern Grace Exteriors
Southern Grace Exteriors
4.6(
139
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace - For BusinessAsphalt Shingle Roofing - Repair+27 more

Serving Alton, MO and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Contractor left a large paint sprayer in our garage for 4 months while the house was rented by vacationing guests. (the house is a vacation rental home.)  I had to point out to contractor that they painted over a fungus that was growing on house siding, instead of properly cleaning/removing this prior to painting.  They painted over the lights on the exterior of the house instead of removing prior to painting. Contract stated that soffit vents were to be installed on both sides of the house.  Contractor only installed soffit vents on one side of the house and did not inform me of this.  I paid contractor in full ($14,258.00) and found out later that the soffit vents were not installed on both sides of house.  December 7, 2015, I informed contractor I wanted him to install the missing soffit vents and needed the roof warranty paperwork.  Contractor told me he would send me the paperwork for the roof warranty. We still have not received the roof warranty. Jan 6, 2016 he responded to my request saying he would install the missing soffit vents, he still has not completed the work.  I have not heard from him since and have not received the roof warranty.  His phone has been disconected, voice mailboxes are full on other phone lines he has. We have texted, emailed and called he refuses to return any form of contact.  We have been forced to contact the roofing supplier ourselves in an attempt to obtain our rightfull warranty. We are not sure if they will be able to link the contractor to our roof. Plus our contract included a 10 year warranty on the workmanship and the company won't even respond to our requests to just finish the job they were paid for. I can only imagine trying to get them to stand by their workmanship warranty.
"
Before & After
Hail Damage
Wind Damage
Recommended by92%of homeowners
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Roofing FAQs, answered by experts

Metal roofs last for between 50 and 70 years, and asphalt roofs last for between 20 and 25 years, with some lasting as long as 30 years. In most cases, you’ll get double the life or more out of a metal roof than you would from a shingle roof, which helps make the higher cost of a metal roof more manageable.

Roof underlayment usually lasts as long as the roofing material that covers it, as it’s not directly exposed to the elements. In most cases, roofing companies will replace the underlayment each time they install a new roof. In some cases, particularly with slate, clay, or certain metal roofs that can last 50 to 100 years, your underlayment may require replacement within that timeframe, especially if you start to notice roof leaks.

Torch down roofing is only one of the options available for your home. Depending on your type of roof, if it is a gable or hip roof, torch down roofing might not work for you due to the slope. Asphalt, metal, and clay shingles are just a few popular roofing options that may be more suitable.

The best type of roof vent depends on the size, type, and construction of your roof as well as the environmental conditions in and around your home. In many cases, an active ventilation system that draws in fresh air and exhausts air out through the attic is the most effective. Active ventilation systems include roof ridge vents with baffles, turbine vents, and soffit vents that are used together with another type of vent.

Yes, gable vents can let water in. That being said, this usually only occurs during extreme conditions like heavy rainfall. You can prevent water from entering through gable vents by adding a screen that traps the water before it can enter.

The Alton, MO homeowners’ guide to roofing services

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