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Find Addition to existing structure builders in Portola Valley

Avatar for OT Bay Builders
OT Bay Builders
5.0(
109
)

Serving Portola Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"We needed more space for our growing family, and the addition they built blends in seamlessly with our original home. From permits to the finishing touches, everything was handled professionally. It’s like it was always meant to be part of the house!"
Broadway Kitchen Remodel
Broadway Full Kitchen remodel
Broadway Full Kitchen remodel
San Francisco Contemporary Kitchen Remodel
San Francisco Contemporary Kitchen Remodel

+81

Response time12 hrs
Response rate98%
1 neighbors recently requested a quote
Avatar for Future Vision Remodeling
Future Vision Remodeling
4.9(
57
)

Serving Portola Valley, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"The finished work turned out beautifully but the length of time it took the crew to complete the job could have been better. The project manager was great to work with and very responsive however there are a couple of small details that I am waiting for them to resolve."
Additional Photos
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+555

Response time7 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Skytech Builders
Skytech Builders
5.0(
21
)

Serving Portola Valley, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"After I contacted several contractors on a room addition I decided to go with Sky Tech Builders and I can tell that it was a really easy decision because they gave me great offer and they completely understood what I wanted to do. They were also available on acceptable time and project started soon after we signed a contract. The project manager and his crew were professional, honest, helpful and very respectful to me and my home. They finished project within time they promised and within my budget. And final outcome is excellent, I am fully satisfied with everything they did and would definitely work with Sky Tech Builders again!"
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo
Kitchen remodeling in Fremont
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo

+63

Response time1 day
34 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Bay Easy Construction
Bay Easy Construction
4.3(
154
)

Serving Portola Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Did just what I needed - added a 240 V circuit to my existing subpanel using liquid waterproof conduit, done in 2 hours, reasonable quote for the work, two thumbs up, would hire again! They also noticed an existing outlet that was not properly sealed near the area they were working and sealed it up!"
Additional Photos
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+13

Response time10 hrs
7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Bay Builders & Remodeling Inc.
Bay Builders & Remodeling Inc.
4.3(
82
)

Serving Portola Valley, CA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"We first heard about Bay Builders from a realtor friend who highly recommended them. We interviewed multiple contractors, all of whom had done nice work, but Bay Builders really stood out right from the beginning. During the proposal process, they came to the house a few times to ensure they captured the full scope of the project. Additionally, we wanted to see their quality of work so Gilad arranged a few site visits and connected us with past clients who all raved about Gilad and his team. It was clear that Bay Builders was the best choice for quality and speed. From the beginning of the process until the end, Bay Builders was exceptional to work with. We had a dedicated project manager, Tomar, who really helped communicate what was happening that week and managed the subs. More importantly, Tomar was such a pleasure to work with. He is very approachable, detailed and diligent. I've heard nightmare stories about other contractors being slow, hard to contact and missing deadlines, but Gilad and Tomar made the entire process stress free and enjoyable! They were great about keeping us informed about what was going on, what decisions needed to be made so that we could stay on schedule. If any issues arose, Gilad and Tomar would always come to the table with a solution and assure us that at the end of the day, they wanted to make sure we were happy. The quality of their work is outstanding and our project finished on time which is rarity given the complexity and change orders associated with our remodel! They have excellent communication skills, are very detail oriented and most importantly, have your best interest at heart. I would highly recommend them. Everyone who has seen the finished product is blown away by the transformation. We are so happy with how our home turned out."
This image depicts a modern and well-lit dining area with a sleek and stylish design. The room exudes a contemporary elegance, marked by its clean lines and sophisticated features.

1. **Dining Table:** The central feature is a large rectangular dining table with a solid surface, surrounded by eight chairs with white upholstery, providing ample seating for gatherings.
2. **Lighting:** Above the dining table hangs a modern chandelier with an industrial design, featuring multiple light bulbs susp
The space showcases a sophisticated modern design with light wooden flooring that extends throughout the area, creating a warm and inviting ambiance. A prominent feature is the glass railing that lines the staircase, which adds to the open and airy feel of the space. The staircase itself is composed of light wood steps, seamlessly blending with the flooring. On the wall adjacent to the stairs, there is a large wooden panel, contributing to the clean and cohesive aesthetic. The ceiling is fitted
This image depicts a modern, well-organized laundry room with a clean and functional design. The room is designed to maximize efficiency and storage while maintaining a sleek and minimalist aesthetic.

1. **Cabinetry:** Light wood cabinets are installed above and below the countertop, providing ample storage space for laundry supplies and other essentials. The upper cabinets extend across the wall, offering plenty of room to keep items neatly tucked away.
2. **Countertop:** The countertop is ma
This image depicts a modern, minimalist shower space with a clean and elegant design. The shower area features large beige tiles covering the walls and floor, creating a cohesive and sophisticated look. 

1. **Shower Fixtures:** The showerhead is a sleek, modern rain shower type, mounted high on the wall. Adjacent to it is a hand-held shower wand with a simple, streamlined design.
2. **Bench:** A floating bench made of light-colored stone or composite material is installed along one wall, provi
This image shows a modern office space characterized by its minimalist design and functional layout.

1. **Glass Doors:** The office is enclosed with black-framed glass doors, providing a stylish and transparent barrier that maintains privacy while allowing light to flow through.
2. **Desk and Chair:** Inside the office, there is a sleek glass desk paired with a cushioned office chair, creating a functional and stylish workspace.
3. **Wall-Mounted TV:** A flat-screen TV is mounted on one wall,

+122

7 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Arroyo Brothers Construction, LLC
Arroyo Brothers Construction, LLC
5.0(
10
)

Serving Portola Valley, CA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"These folks are conscientious, honest contractors. I have hired then for many years and I am never disappointed in the workmanship and quality. They always back their work and came back to fix something that they worked on. An added bonus is that they are just great people. I would highly recommend them and I am picky."
Los Gatos Remodel
Los Gatos remodel and addition
Los Gatos remodel and addition
Los Gatos remodel and addition
Santa Cruz Bathroom

+8

Response time12 hrs
Recommended by100%of homeowners
Avatar for Sigura Construction Inc
Sigura Construction Inc
4.4(
58
)

Serving Portola Valley, CA and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"It went well. There were some surprises. Damaged shingles and structural damage were discovered once we were underway. This lengthened the duration and cost of the project. Fortunately Sigura has carpentry capabilities in addition to their painting skills and were able to make the needed repairs before resuming the painting. The rest went without a hitch."
Bathroom Remodel
Guest Bathroom
Upstairs Bathroom 2
Upstairs Bathroom 1
Downstairs Restroom

+107

3 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Rose Remodeling & Design Inc.
Rose Remodeling & Design Inc.
4.8(
95
)

Serving Portola Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Adir and his team exceeded all expectations with our ADU project. They helped us refine our design, handled permits efficiently, and executed the work beautifully. Every part of the build shows quality and care. What I appreciated most was their communication. They kept us informed the entire time. It?s rare to find a company this reliable."
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM

+128

Response time6 hrs
Response rate94%
23 neighbors recently requested a quote
Avatar for Bay Remodeling Kitchen & Bath
Bay Remodeling Kitchen & Bath
5.0(
67
)

Serving Portola Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"To create my ideal kitchen, the staff at Bay Remodeling Kitchen & Bath went above and beyond. They listened to my thoughts, made useful recommendations, and transformed my kitchen into a lovely, hospitable area."
Palo Alto full Home Remodel
Full Bathroom Remodel Mountain Veiw, CA
Portola Valley, CA
Bathroom Remodel in Palo Alto, CA
Bathroom Remodel San Jose, CA

+183

20 neighbors recently requested a quote
Recommended by70%of homeowners
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FAQs for addition to existing structure building service projects in Portola 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 Portola 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.