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Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
750 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for RDB CONSTRUCTION LLC

RDB CONSTRUCTION LLC

New on AngiNew on Angi
Approved Pro

RDB CONSTRUCTION LLC

New on AngiNew on Angi
Approved Pro
Free onsite estimate

As 30+ years experience carpenters, we are always prepared to take on your projects with precision and care. We pride ourselves on being courteous and polite, ensuring a positive experience from start to finish. Our approach involves actively listening to your needs and preferences to deliver tailored solutions. ???? We understand the importance of clear communication and collaboration to bring your vision to life. From the initial consultation to the final touches, We are dedicated to providing exceptional craftsmanship. ? We are ready to start, so contact me today.

As 30+ years experience carpenters, we are always prepared to take on your projects with precision and care. We pride ourselves on being courteous and polite, ensuring a positive experience from start to finish. Our approach involves actively listening to your needs and preferences to deliver tailored solutions. ???? We understand the importance of clear communication and collaboration to bring your vision to life. From the initial consultation to the final touches, We are dedicated to providing exceptional craftsmanship. ? We are ready to start, so contact me today.


Avatar for Coach House Garages

Coach House Garages

4.88(
92
)
Approved Pro

Coach House Garages

4.88(
92
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
393 local quotes requested

WE BUILD CUSTOM GARAGES DESIGNED TO FIT YOUR LIFE, BUDGET, AND DREAMS At Coach House, our buildings are more than just garages and sheds. By combining your imagination with our experience built from generations of Amish craftsmanship and the finest quality materials, we can build you a garage that fits all of your specifications at a budget you can live with. All with a warranty that cannot be matched by any other garage builder… Whether you have a particular design in mind — or you’re just beginning to dream about having more space —Coach House can help your dream come true. Garages, Garden Sheds, Guest Houses, Man Caves, She Sheds, Barndominiums, Pool Houses Workshops, Home Offices… A Coach House Garage is an extension of your life, whether it’s a structure for your vehicles, a space for your hobby, a playroom for your children, or a sanctuary from the outside world, we understand the impact and importance your Coach House will have in your life. You want a building that compliments and enhances your home, and brings value for years to come. You can count on your Coach House team to listen to your needs, and create the perfect building to fit your unique vision.

"Yes yes Great job"

Paul L on December 2025

WE BUILD CUSTOM GARAGES DESIGNED TO FIT YOUR LIFE, BUDGET, AND DREAMS At Coach House, our buildings are more than just garages and sheds. By combining your imagination with our experience built from generations of Amish craftsmanship and the finest quality materials, we can build you a garage that fits all of your specifications at a budget you can live with. All with a warranty that cannot be matched by any other garage builder… Whether you have a particular design in mind — or you’re just beginning to dream about having more space —Coach House can help your dream come true. Garages, Garden Sheds, Guest Houses, Man Caves, She Sheds, Barndominiums, Pool Houses Workshops, Home Offices… A Coach House Garage is an extension of your life, whether it’s a structure for your vehicles, a space for your hobby, a playroom for your children, or a sanctuary from the outside world, we understand the impact and importance your Coach House will have in your life. You want a building that compliments and enhances your home, and brings value for years to come. You can count on your Coach House team to listen to your needs, and create the perfect building to fit your unique vision.

"Yes yes Great job"

Paul L on December 2025


"Steve Eaton and his crew constructed A beautiful 15x 42 Timber tech composite deck for us.His work was very precise down to the smallest detail.He went out of his way to make sure each stage of the construction was done pr spec.Steve personally performed special small additional tasks that the wife requested without even hesitating.I would highly recommend Eaton bros const.to anyone that may need any expert construction needing performed. Thank you again Steve,and your crew for our project completed that we will enjoy for several years to come"

Frank S on October 2025

We Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"Steve Eaton and his crew constructed A beautiful 15x 42 Timber tech composite deck for us.His work was very precise down to the smallest detail.He went out of his way to make sure each stage of the construction was done pr spec.Steve personally performed special small additional tasks that the wife requested without even hesitating.I would highly recommend Eaton bros const.to anyone that may need any expert construction needing performed. Thank you again Steve,and your crew for our project completed that we will enjoy for several years to come"

Frank S on October 2025


Supreme metal buildings

No reviews yet

Supreme metal buildings

No reviews yet
2 years of experience

Supreme Metal buildings is a high quality exterior building installation company. We provide the best quality metal carports, RV ports, garage, barn and multipurpose buildings. Contact me today for a personalized quote.

Supreme Metal buildings is a high quality exterior building installation company. We provide the best quality metal carports, RV ports, garage, barn and multipurpose buildings. Contact me today for a personalized quote.



"They were professional and the work went well! I will going to use them again next month"

Anna T on September 2022

Hi there I am Ricky I am a handyman also remodel Homes there no job to big are small when in need give Ricky a Call

"They were professional and the work went well! I will going to use them again next month"

Anna T on September 2022



We are a full service construction company specializing in the design and construction of kitchens and bathrooms.


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FAQs for garage service projects in Alton, IL

Yes, you should be able to cover your detached garage on your homeowners insurance policy. Most policies will automatically cover it as a “separate structure,” but policies differ widely. It’s best to confirm with your insurance company whether or not it will cover the detached garage before starting this extensive project.

It’s typically less expensive to buy a garage-building kit than to build a garage from scratch if you’re supplying all the labor. However, unless you are an experienced builder, you will still need to hire pros to install the foundation, concrete floor, and add electrical and plumbing to your garage kit. In that case, it’s worth the investment to build a garage through a local garage builder who can coordinate the hiring of other necessary pros.

The cost to convert a carport into a garage averages about $22,000, ranging from about $15,000 and $55,000. Additional cost factors to consider include size, time of year, and how much of the carport you can reuse. Other cost factors include the kinds and amounts of materials used, such as:

  • Add insulation: $1 per square foot

  • Add drywall: $1–$3 per square foot

  • Add window: $450–$2,000 per window

  • Add outlets: $75–$500

  • Add garage door: $250–$11,200

  • Enclose framing: $5–$13 per square foot

  • Replace roofing: $1,000–$2,000

The cost to build a detached garage for two cars costs about $26,400 on average. Prices range from $19,200 to $33,600, depending on your location, the garage size, height, materials, and site prep required. Additional cost factors include any plumbing, electrical wiring, and insulation. If you need to build a concrete foundation for a new detached garage, you can expect to pay $1,000 to $8,600 for this essential addition.

The average cost to remodel a garage is around $18,000, ranging from $1,500 to $50,000, depending on size, materials, location, and other factors like plumbing and electrical. Garage remodels that include changing the roof and walls add significant expenses to the project. Plus, you can expect to pay about $1,400 for the building conversion permits. For a simple remodel, like painting interior walls and recoating the garage floor, it will cost about $2 to $5 per square foot.

The Alton, IL homeowners’ guide to garage services

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