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Find Addition to existing structure builders in Mill Valley

Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
4.9(
67
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"After they redid our counter tops and island, we had them paint out cabinets and build shelves up to the ceiling. The communication was on point this time and the results speak for themselves. Would definitely recommend them to anyone for any home project."
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate99%
623 neighbors recently requested a quote
My Remodeling Group
5.0(
31
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Transformation begins the moment My Remodeling Group steps into your home. For this kitchen remodel, every detail was carefully planned to improve flow, storage, and style. From modern cabinetry to clean finishes, the space was redesigned to feel open, functional, and welcoming. The result is a kitchen that supports everyday living while adding lasting value and visual appeal to the home."
Avatar for Ceres Construction
Ceres Construction
5.0(
10
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

Free estimates

Warranties offered

Customers say: True professional

"I highly recommend hiring Adrian Kovaci and his crew at Ceres Construction for your home construction project.The quality of their work was superb, the cost was comparible to the three other quotes I got from other companies, and their work presence at my home was unobtrusive as I could hope for. My two level 1923-built Richmond district home in San Francisco had a derelict passage to my garage - crumbling door, wobbly side stairs, and dry-rotted siding. Nothing was up to code. Adrian noted all the items that had to be reconstructed and said the project would take up to 20 days (it actually was finished in 18 days.) Adrian was very accommodating in giving extra finishing touches to my door hallway without extra charges, which I appreciated. I was concerned about the cost of the project and the disruption the work would cause, but Adrian's calm demeanor and the friendliness of the crew put my worries to rest. Thank you Adrian for leaving the work area spotless and for the quality work!"
Structural beam and layout modification
Remodeling - General Project
building new partition wall
Remodeling - General Project
Kitchen remodeling

+22

Recommended by60%of homeowners
Avatar for Prosper Construction Development, Inc.
Prosper Construction Development, Inc.
4.4(
52
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Prosper and the team at Prosper Construction just completed a beautiful renovation of my home. I badly needed new flooring and decided to add other updates as well. So we embarked on the journey to design an addition to our home and redesign the entire front of the house, which included a kitchen remodel as well. I knew that I wanted to replace my carpet with porcelain tile, but I thought that I would leave my existing kitchen tile in place, to save a little money. Prosper convinced me to eliminate all transitions in the flooring and replace the entire house with the new tile, and I am really glad that he did! The house now has a smooth flow and an expansive look that is just gorgeous. The entire experience was beyond worth the investment. The most amazing part of the transformation of my home is my stunning new master bathroom, which Prosper also advised me on."
modern railing
after staining the new stairs #2
modern kitchen design
convert traditional bathroom into modern bathroom
modern bathroom

+134

Response time6 days
Recommended by97%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We decided to remodel our outdated bathroom, and McCormick Home Builders was a fantastic choice. Khaled and the team delivered high-quality work within the timeline and our budget. Every detail, from the tile work to the lighting, was beautifully done. They communicated well throughout, keeping us informed at every step, and the end result was truly a spa-like bathroom we can enjoy daily. We’d love to work with them again!"
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+1

Response time6 hrs
Recommended by15%of homeowners
Avatar for J R A Construction
J R A Construction
5.0(
12
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"Outstanding work from start to finish. The quality of the workmanship exceeded my expectations, and the project was completed on time and within budget. I would definitely recommend this company to anyone needing construction work. Great communication, quality craftsmanship, and fair pricing."
Full kitchen remodel
Bathroom remodel
All kitchen remodel
All kitchen remodel
Concrete patio

+51

Response time2 days
3 neighbors recently requested a quote
Recommended by8%of homeowners
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Our roof was in bad shape and we needed to have it replaced. I had gotten estimates and decided to go with Home Pro Remodeling. Emil and Brian were our contact people for the project. Emil was very professional and paid attention to our concerns. He worked with us through the entire project to our complete satisfaction. Brian is extremely courteous and helpful as well! The project went very smoothly, was completed before the initial project end date, and the results were beyond our expectations. The job turned our beautifully! Our new roof looks FANTASTIC! Our neighbors have commented to us how great it looks. We are very pleased with our experience with Home Pro Remodeling and would definitely recommend them."
Response time5 days
Recommended by77%of homeowners
Avatar for Bay Builders, Inc.
Bay Builders, Inc.
5.0(
5
)
Addition to Existing Structure - Build

Serving Mill Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Warranties offered

"John and his team do amazing work. Built a stunning custom office space with a floor to ceiling library, custom cabinets and custom French doors that blended into our existing home design. I’ve owned a number of homes over the years and I’ve never worked with a builder more dedicated to quality and with more experience than Bay."
Response rate100%
8 neighbors recently requested a quote
Recommended by75%of homeowners
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FAQs for addition to existing structure building service projects in Mill Valley, CA

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 Mill Valley, CA 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.