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

Nick Holker Construction
4.8(
53
)
Addition to Existing Structure - Build

Serving Watertown, MN and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"Nick built me a beautiful deck. I'm very happy with the work he did. He followed through with everything he said he would including quality, price and schedule. Yes, I would recommend Nick to anyone looking to build a deck or any other home improvement projects."
Cedar deck with screened gazebo
 cedar fence with lattice top
Dakota Junction Restaurant
Azek mahogany and aluminum railing
Azek

+53

Response time5 days
Response rate100%
1 neighbors recently requested a quote
Avatar for Giinthir Construction, LLC
Giinthir Construction, LLC
4.8(
12
)
Addition to Existing Structure - Build

Serving Watertown, MN and surrounding areas

Approved

In business since 2020

Free estimates

Offers commercial services

"We've used Alex's services to grade a steep slope in my backyard and I could not have been more pleased. It was done so quickly I couldn't believe it was the same yard! We also had him tear out an existing concrete driveway and prep for a new one to be poured. I am amazed at how fast he works and how clean he leaves every job! He is polite, respectful and really listened to what we wanted and delivered! I recommend him to everyone I talk to! We will be using him for future jobs as well!"
Response time2 days
Response rate89%
Recommended by100%of homeowners
Avatar for Timberstone Builders LLC
Timberstone Builders LLC
New to Angi
Addition to Existing Structure - Build

Serving Watertown, MN and surrounding areas

Approved

Small jobs welcome

Offers commercial services

With over 50 combined years of experience in new and remodel construction, Chad and Tim are sure to make your project dreams come true. We are fully licensed and insured and can handle just about any project you have. We pride ourselves in doing quality work and are extremely easy to work with. Having families ourselves, we understand the inconvenience of construction in your house and do our best to keep it clean while we are there and get out in a timely matter.

Bathroom
Bathroom
Bathroom
Barndo
Barndo

+1

Avatar for Massie Construction
Massie Construction
New to Angi
Addition to Existing Structure - Build

Serving Watertown, MN and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

I am a framing contractor with 6 years of experience. I've built houses, done remodeling, decks, bathrooms, interior finishes, etc. My specialty is framing and carpentry, but I will look at other projects as well. I'm passionate about my work and strive to be clean and efficient.

Hainlan Park Pavilion
Hainlan Park Pavilion
Hainlan Park Pavilion
Hainlan Park Pavilion
Hainlan Park Pavilion

+14

3 neighbors recently requested a quote
Avatar for Minnesota Construction and Property Management
Minnesota Construction and Property Management
5.0(
20
)
Addition to Existing Structure - Build

Serving Watertown, MN and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Everything from the design through to the completed project went very smoothly and project ended up being gorgeous!! Trevor kept us well informed and there were no hiccups or surprises. Excellent quality work and beautiful finished project!!"
Composite Decks
Cedar Decks
Covered Decks
Recommended by100%of homeowners
Avatar for Garden Structures & More
Garden Structures & More
4.6(
73
)
Addition to Existing Structure - Build

Serving Watertown, MN and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"We had Garden Structures & More add onto the beautiful privacy fence they had previously built for us, and we couldn't be happier with the final result. Our new and improved fence is even better than we had envisioned due to owner/designer/craftsman Hal's excellent ideas. All work was completed in a timely and professional manner. We truly enjoyed working with Hal and wouldn't hesitate to have him do our next home project. "
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Recommended by95%of homeowners
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FAQs for addition to existing structure building service projects in Watertown, MN

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 Watertown, MN 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.