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

Avatar for Waters Construction Co.
Waters Construction Co.
5.0(
5
)
Addition to Existing Structure - Build

Serving Grimes, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Michael and team did such an amazing job on our bathroom remodel. They took our tiny, dysfunctional bathroom and turned it into a true master bathroom oasis in a short amount of time during the holiday season. When they had the space down to the studs, Michael sat down with us and discussed in detail the best possible use of the space and we couldn’t be happier with our final decision after going through the options. Michael was great at communicating and we still stay in touch to this day, which we truly appreciate. Great team who does great work and I will absolutely be giving Waters Construction a call for any and all future home renovations. I’ll let the pictures do the rest of the talking."
Kitchens
Kitchens
Kitchens
Kitchens
Kitchens

+14

Response time6 hrs
Response rate100%
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Addition to Existing Structure - Build

Serving Grimes, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I found these company online and I hired them to replace all the existing windows and patio doors with new fiberglass (Milgard) Ultra windows and a double French door from them a few months ago for our renovation. They provided us with an awesome price for the windows and doors themselves and for the labor of the installation as well. The representative that I spoke to was very professional and he came over to my house on the time and day that was scheduled ahead of time via the office. The people that we were involved with (including the installers and the sales man), was definitely outstanding. We had a minor issues that accorded during install, and they provided awesome post-sale support as well. I recommended them to all my friends and family as a great company for any energy efficient products. They are fantastic. And have some Sunday hours, which is absolutely a great help. We purchased 2 additional exterior doors from them and this was an add on that we decided to do in the last minute and after the work was stated. We were sure that they won’t be able to do it during the same time… but they did it and it went so smooth and excellent. Should've gone to Landmark construction energy crew for those too. You can shop with confidence with them!"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Avatar for Ocean Seven Builders
Ocean Seven Builders
4.6(
68
)
Addition to Existing Structure - Build

Serving Grimes, CA and surrounding areas

In business since 1994

Free estimates

Emergency services offered

"Matt came to inspect our roof and found another tile that needed to be replaced in addition to the 2 that were already broken. He came the next day to do the job. In addition to replacing the tiles, he fixed other tiles that were previously repaired by another company. He was efficient and did an awesome job. Reasonable price and would use him again for any future jobs."
Additional Photos
Additional Photos
Additional Photos
Recommended by59%of homeowners
Avatar for Clear Horizon Home Solutions, Inc.
Clear Horizon Home Solutions, Inc.
4.3(
214
)
Addition to Existing Structure - Build

Serving Grimes, CA and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"We had a great experience with Expert Home Builders . Polite, knowledgeable, friendly and took extra care . They pay attention to small details. I would recommend 100% to anyone who need remodeling project done."
1
2
3
Kitchen Remodels
2

+2

Recommended by82%of homeowners
Avatar for Result Construction Lic#1111481
Result Construction Lic#1111481
5.0(
3
)
Addition to Existing Structure - Build

Serving Grimes, CA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Just had to drop a review for Result Construction after they wrapped up our kitchen extension. Honestly, I was dreading the disruption, but their team was so considerate and tidy. Every evening, the site was cleaned up, and they kept us updated with progress. The final reveal? My jaw dropped. It’s not just a kitchen; it’s the heart of our home now. Sacramento friends, if you’re thinking renovations, these are your go-to guys."
1st Floor Converted to ADU (2024)
Garage Conversion in Sacramento, CA (2023)
ADU 600f ADU Building
Garage Conversion into a studio
1st Floor Converted to ADU (2024)

+4

Recommended by100%of homeowners
Avatar for Homemade Design
Homemade Design
3.7(
322
)
Addition to Existing Structure - Build

Serving Grimes, CA and surrounding areas

In business since 2006

Credit card accepted

"I never contacted the provider or used this service in anyway. I have to
write this review so that the request to write this review stops
popping up.
The rating is bogus as it is required to be able to submit.
"
Pennsylvania Master Bathroom
Boston Small Condo Kitchen
California Client Saves with HMD Designer Discounts
Recommended by54%of homeowners
Showing 1-10 of 45
FAQs for addition to existing structure building service projects in Grimes, 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 Grimes, 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.