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Top-Rated Addition to existing structure builders in Saint Ignatius - Updated Nov 2026

Avatar for Stag Construction LLC
Stag Construction LLC
5.0(
9
)
Addition to Existing Structure - Build

Serving Saint Ignatius, MT and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"Stag Construction was hired to replace poorly installed Hardi Board siding and replace patio doors and window. Pictures show after corrections of miscut siding, siding pattern not running in same direction, siding not even from panel to panel, wavy uneven fascia, 2"gaps between soffits and siding, roof edges straightened and more. Fascia is now straight and runs parallel to top of windows and no holes/gaps for rodents to enter. Amazing! Due to the unknown extent of the work, contract was" by the hour, not a bid. What a pleasant surprise to deal with a company that knows how to install so as not to void a warranty. Austin and his brothers were professional, knowledgeable about the product, courteous, and efficient. Work hours calculated accurately and materials receipts were detailed. I appreciated their willingness to discuss options and express opinions when asked. Stag Construction will be doing more work for me next spring. Looking forward to it!"
Bardominium
Bardominium
Bardominium
Frenchtown Deck Build
Frenchtown Deck Build

+15

2 neighbors recently requested a quote
Avatar for Big Sky Country Contractors
Big Sky Country Contractors
4.9(
8
)
Addition to Existing Structure - Build

Serving Saint Ignatius, MT and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I hired Perfectos to clean out and organize my garage. I had lots of boxes I needed broken down and furniture I needed hauled out. They arrived on time and got it all done in a few hours. I am super impressed with their work and would recommend them to anyone needing help with cleaning or projects around the house."
Full interior paint job including stairwell paint & staining, walls, trim, doors & ceilings.
Full kitchen paint job including walls, ceilings, cabinets & trim.
Full interior paint job including trim, walls & ceiling.
Full interior paint job including doors, trim, ceilings & walls.
Full interior paint job including trim, walls, ceilings & wainscoting.

+2

Response time3 days
Response rate100%
8 neighbors recently requested a quote
Avatar for Warnock LC
Warnock LC
5.0(
1
)
Addition to Existing Structure - Build

Serving Saint Ignatius, MT and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"​"We had a great experience with Warnock LC for our attic insulation and bathroom ventilation installation. Even with a massive amount of old insulation to clear out, the crew was fast, professional, organized, and got the job done quickly. Their prices are very reasonable, and their customer service is top-notch. Highly recommend!""
Project Photos
Project Photos
13 neighbors recently requested a quote
Avatar for Legacy Construction LLC
Legacy Construction LLC
New to Angi
Addition to Existing Structure - Build

Serving Saint Ignatius, MT and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n \n \nCall us today you'll be pleased you did. Thank you

New home build
Avatar for R&T Services
R&T Services
5.0(
5
)
Addition to Existing Structure - Build

Serving Saint Ignatius, MT and surrounding areas

Free estimates

Warranties offered

"They are excellent contractors. They listen to what we wanted done, made suggestions as to how to improve upon our ideas and did excellent work. They have a great eye for detail . They exceeded our expectations and did it at a fair price."
Additional Photos
Additional Photos
Additional Photos
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Additional Photos

+17

Response time2 days
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Saint Ignatius, MT

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Saint Ignatius, MT homeowners’ guide to addition to existing structure building services

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