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

Avatar for Wilmet Construction LLC
Wilmet Construction LLC
5.0(
4
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"I had MAJOR water damage in my family room on my outside wall ( half brick- huge window) and a bit on the adjoining walls as well. Dante Wilmet was a miracle worker on this project. He had to remove the outside wall completely and rebuild ( including the brick). He did an amazing job… stuck to his quote. If there was anything that came along that would cost extra- he would call to make sure it was ok with me to proceed. He was always on time and extremely reliable. If I could afford to gut my whole house- I would gave Wilmet Construction do the job!"
Framing
Basement remodel
Basement remodel
Basement remodel
Basement remodel

+18

8 neighbors recently requested a quote
Avatar for Elite Building & Design
Elite Building & Design
3.7(
6
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Elite Building and Design did a great job on our deck as well as an addition of a gym and spa in our basement area. The attention to detail, craftsmanship and integrity of their work is unmatched in the industry today! Old school work ethic and values, with modern solutions and innovation. Extremely talented, high end carpentry and building. Our home definitely stands out from the rest! Highly recommend!"
Remodeling - General Project
Remodeling - General Project
1 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for A&M General Construction LLC
A&M General Construction LLC
4.6(
8
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"After looking for 1 year for a contractor, we looked at Angi. We were connected with Antonio of A&M General Construction, and we walked around the house explaining what we wanted. As we explained our plans, he asked questions but never said we won't be able to do that or change our minds to do something we didn't want. We had them remove four windows and replace 3 of them them were able to get exactly the windows we wanted. Took out two walls and opened up the room. Opened a walkway into the bathroom. Moved an intake vent. Painted, layed tile, converted bathtub into shower. We were very happy with the results. My wife loves her new master bedroom."
Roof and windows
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project
Remodeling - General Project
Roof and windows

+25

Response time7 hrs
Response rate100%
Recommended by87%of homeowners
Avatar for Custom Craft Environmental
Custom Craft Environmental
4.6(
117
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 1991

Emergency services offered

Credit card accepted

"The insurance company hired another remediation company on our behalf, but I contacted Rich for another estimate/opinion. Rich provided me advice via phone on multiple occasions, told me what to look for and assured me that the other company was following industry standards. Ultimately Rich came to our house to potentially provide us with an estimate on the rebuild portion of the remediation. Although we could not use Custom Craft Environmental for this project, I would recommend them to anyone and would definitely use them in the future, based on Rich's knowledge, responsiveness and professionalism."
Additional Photos
Additional Photos
Additional Photos
Before
After

+1

Recommended by94%of homeowners
Avatar for GF Company
GF Company
4.6(
152
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"I would totally recommend this company! Ariel went above and beyond for me when replacing my roof and gutters! Ariel would call me and let me know he was on the way or if he was running even 5 minutes behind. My house looks great and I will be using them again come spring to start replacing some of my windows. Thank you Ariel! Your crew was great, too."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Recommended by93%of homeowners
Avatar for TECH FIVE Design & Build
TECH FIVE Design & Build
4.7(
15
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 2018

Free estimates

"From the initial meeting with Nick to the crew putting the finishing touches on the new deck the job was handled with the utmost of professionalism. Nick’s design ideas were perfect and the construction was was done with great attention to detail. The crew did a great job working around our existing landscaping. I highly recommend their company."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+48

Recommended by100%of homeowners
Avatar for JC Elevation Team LLC
JC Elevation Team LLC
5.0(
5
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 2021

Free estimates

Warranties offered

"My experience was truly amazing, they over passed my expectations. Nicely done job, I would highly recommend them if you need any type of remodeling. Also, they are bilingual, communication was very good and they were very quickly to finish too."
Painting - Exterior Project
Siding Project
Roofing Project
Painting - Exterior Project
Siding Project

+33

Response time4 days
Response rate100%
Recommended by100%of homeowners
Avatar for Stendahl Exteriors
Stendahl Exteriors
4.1(
252
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 2005

Credit card accepted

"It was a reasonably satisfactory experience, and they weren't able to find any structural issues with the roof.  Furthermore, the gentleman was professional and courteous, and I wouldn't have hesitated to use them if necessary."
Before
During
Completion
Before
During

+3

Recommended by82%of homeowners
Avatar for Homemade Design
Homemade Design
3.7(
322
)
Addition to Existing Structure - Build

Serving Denmark, WI and surrounding areas

In business since 2006

Credit card accepted

"It was fine. The original design didn’t meet my needs based on the information I provided them. However, they revised the plans which worked out better for me. They were able to get the first draft to me pretty quickly."
Pennsylvania Master Bathroom
Boston Small Condo Kitchen
California Client Saves with HMD Designer Discounts
Recommended by54%of homeowners
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FAQs for addition to existing structure building service projects in Denmark, WI

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 Denmark, WI homeowners’ guide to addition to existing structure building services

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