How much do addition contractors typically cost?
- Walnut Creek, California Average$98,346
- Typical Range$39,890 - $67,500
- Low End - High End$5,800 - $300,000

Renovations, Landscaping, Roofing , and 1 more
"Good service, competitive prices, completed the project on time!"
BFF70485135C547322B677792B3900D8B08BCD88960903699A3B0B6E7B6E205A 7. in December 2024

"Yes. The remodeler was on time, worked efficiently, cleaned up after himself, and because Eric was experienced in remodeling, he knew exactly what to do so everything went smoothly. Thank you. The bathroom looks great!"
Keith B. in December 2024


Additions and Remodels, Window and door replacemet, Additions and Remodels , and 3 more
"A great contractor, shows up on time and really accurate with the pricing."
patty P. in December 2021

Additions to Existing Structure, Custom Home Builder, Kitchen - Remodel
"I hired Hagenbach Construction based on a referral from my cabinet vanity vendor who I've done business with 4 years prior. John, his wife Amy, and his crew were AWESOME and the finished bathrooms can easily make an HGTV remodel or magazine feature. They were far better than I ever imagined. I wish I can post some photos here, but hopefully, the finished bathrooms will grace his website. My project involved two bathroom remodels - a master and guest (and the only two in my single story home) over a period of 7-8 weeks. The master bathroom was a total demo of the existing 200 sq. ft. space, on a slab floor and what we believed had post tension cables. It was a complex project, in my opinion, and one I waited on the right contractor to help me with. John was meticulous in the planning of the work, review of my design, and in every aspect of the tricky construction. While I had an initial design from the cabinet vendor, John validated the measurements, size of vanity, walk-in shower, shower seat and niches, placement of the freestanding tub, canned lights and wall sconces, vents, the new pocket door and bathroom door, etc.. The floor tiles and shower tile accent were very intricate, utilizing basketweave floor tiles and a herringbone shower tile accent. They were installed perfectly. John personally laid the shower tile accent on a piece of plywood for me to see and finalize before installation. The wall and placement of the carrara marble subway tiles and chair rails were also carefully planned across the room, so that he can plan for where the cut pieces were going to be. On the 6' x 6' walk-in shower, he assisted in getting me the best neo-angle configuration, with the best 30" door placement. He also guided me in the options for best hot water availability. There is nothing I would change in these bathroom projects and John and his crew were hardworking, meticulous, conscientious about the remodel inconvenience and were always a pleasure to work with. They always showed up early or when they said they would. I would recommend John and Hagenbach Construction to anyone for any project. Contractors like him are a gem, and few and far between. It shows that he and his crew take pride in their work."
Brenda S. in November 2016

Building Additions, Interior Remodeling, Painting , and 10 more
"We had our bathroom remodeled by Bear Remodeling and we are thrilled with the process and the results. They were able to start quickly which was important to us. Idan was so much help in helping us choose materials and laying out the design. Whenever small issues came up they quickly had solutions and we love our new bathroom!"
Sarah E. in June 2021

Kitchen Remodels, Major Renovations , ADU , Design service, roof , and 2 more
"It took us time to find a contractor. We got over Six quotes only two contractors actually sent us a bid. Ben was very responsive. He sent us the quote within a week from the visit. We were very satisfied with the process. We were always in the know. We have done renovations In the past with contractors and we were always not pleased with not knowing the schedule. We finally found someone we can trust and will definitely be using him again. Thank you again Ben it was a pleasure meeting you and working with you."
Jacob Z. in October 2024

General Contracting
"Very honest company, and complete the job in a thoroughly way."
Francis M. in January 2022

Electrical, Troubleshoot,Recessed Lights, Under cabinet Lighting, Puck Light, Service Change, Plugs, Interior & Exterior Trim, Deck & Porch - Install, Replacement & Repair , and 2 more
"We hired Wilson to install a dog door on an exterior (stucco) wall of our new home. He was very professional. He showed up on time, did the work, and cleaned up afterwards."
Peter D. in November 2013
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Walnut Creek Addition & Remodeling Contractors are rated 4.8 out of 5 based on 221 reviews of 221 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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