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

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

Serving Plymouth, 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 The AI Construction LLC
The AI Construction LLC
5.0(
13
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"We recently had our bathrooms remodeled by AI Construction, and the entire experience was absolutely outstanding! From the very beginning, Angel and his team were professional, honest, and incredibly easy to work with. They paid attention to every detail, communicated with us throughout the project, and made sure everything was done to the highest standard. Angel is a reliable contractor who delivers exceptional quality and an stress-free experience, I highly recommend AI Construction. We couldn’t be happier with the results and will definitely be recommending them. Thank you, Angel and the entire team, for bringing our vision to life!"
Kitchen Remodel
Full kitchen project
Full kitchen project
Full kitchen project
Deck Project

+14

27 neighbors recently requested a quote
Avatar for Macc Construction
Macc Construction
5.0(
10
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

Approved

In business since 2012

Customers say: True professional

"Amazing contractor and crew. Always responsive to our calls and questions. Handled a large multiple room remodel on time and within budget. Has a great reliable crew. Their work was thorough and top notch. Willing to listen to our ideas all the while offering helpful advice on what might look better and ideas on saving us money. A great experience overall."
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Additional Photos

+126

Response time2 days
Response rate100%
Recommended by100%of homeowners
Avatar for European Standards Flooring and Remodeling
European Standards Flooring and Remodeling
5.0(
1
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"I just hired this company, haven't started the project yet, but for those whom came to give an estimation i was truly disappointed! Raul, came here took the time to check areas looking for soft spots in the floor, gave suggestions and solutions, and best and worst case scenarios. He had great ideals, gave me options and made me feel secure in knowing what his was doing and what and how they would proceed! That in itself speaks volumes! Others on here whom came were lazy, not looking or have a clue what kind of work was needed, yet spit out an estimate that made me laugh!! I will out of kindness not reveal their name! I will give more reviews as the project gets underway and done. I'll also post before and after photos!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+22

3 neighbors recently requested a quote
Avatar for 4 Corners Construction inc.
4 Corners Construction inc.
5.0(
14
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"excellent. Efficient and friendly workers. Kept us informed of every step and progress of the work being done. The final work was to our complete satisfaction. Would hire them again and would recommend the to family and friends"
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Additional Photos

+141

Recommended by100%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Excellent Service from planning through Execution and installation to final fine tuning. The folks communicated well and explained every detail of the step. Got permit and inspection done. It was seamless. Thanks. R."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
Avatar for Clear Horizon Home Solutions, Inc.
Clear Horizon Home Solutions, Inc.
4.3(
214
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"I went with Expert Home Builders on a room addition. The big and expensive project and bog responsibility but I'm happy I hired this contractor. David and his team showed up on time and they were great from first day to end of this project. David was knowledgeable, honest and helpful. He informed me about working progress all the time and contacted me immediately if there was something important. His team worked hard, kept working area clean as possible, they were professional, friendly and quick also. The project was finished ahead of schedule and results are excellent. The quality of work is superb, overall experience excellent and price very acceptable. I would highly recommend Expert Home Builders to all people I know!"
1
2
3
Kitchen Remodels
2

+2

Recommended by82%of homeowners
Avatar for Forever Wood Construction
Forever Wood Construction
5.0(
12
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"In June of 2010 my house flooded due to a faulty toilet tank intake line.  Forever Wood Construction was there within 2 hours & begin the steps needed to start the repair of my home.  They helped me move all my belongings out of the way so they could remove the water damaged part of the walls & the damaged flooring.  They set up blowers & dehumidifiers throughout my house to dry it out so they could proceed to put it all back together.  They totally matched the texture on my walls & you can't tell that I've ever had a flood or had any portions of the walls redone!  They even fixed some long standing electrical issues for me.  Great company!  I definitely recommend this company to others."
A bar I built
A Piano store's doorway's
Handrail I built
Recommended by100%of homeowners
Avatar for The Right Choice Home Remodeling, Inc.
The Right Choice Home Remodeling, Inc.
4.2(
139
)
Addition to Existing Structure - Build

Serving Plymouth, CA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"We recently finished our 600 sq/ft room addition at our home. We can’t write here enough good things about how satisfied we are with the completed addition project. We have already referred Pure Home Remodeling to some of our friends. Our addition project was to add an additional master suite that includes a small sitting room with built in wall cabinets and a small bar, a full bathroom, walk-in closet and of course the bedroom. Emil and his dedicated hardworking crew did a wonderful job. Not only that they took the blue prints and build them but they did it like it was their own project. They asked all the right questions and suggested many recommendations when they noticed a problem with the existing plans. Emil was at our house on a daily basis and he kept us informed of the current status of the work. They finished the remodeling job ahead of the planed date. We will contact them again in the future for any remodeling projects we may have."
Master Bathroom Remodel
Roofing
Bathroom Remodel
Roofing Service
Bathroom Remodel

+309

Response time2 hrs
Response rate89%
Recommended by84%of homeowners
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FAQs for addition to existing structure building service projects in Plymouth, 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 Plymouth, 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.