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Find Addition to existing structure builders in Penryn

Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."
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+1

Response time6 hrs
Recommended by17%of homeowners
McQueen Construction
4.8(
46
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

In business since 1973

Free estimates

Customers say: Quick response

"We hired Scott McQueen to totally renovate our existing barn, a very challenging project. We recently purchased this ranch property. The existing barn was quite old, probably built 50 years ago or more. Scott developed a plan to totally renovate it -- new trusses, new concrete floor (previously was just a dirt floor), new roofing, new siding, new electrical, new paint, new and strengthened interior walls, new doors, etc. Unfortunately we tackled the project at a time of high prices for materials and other elements, but Scott worked with us to significantly reduce costs from the original estimate by redesigning some elements of the plan and working with us to explore alternatives. We couldn't be happier with the renovation."
Claw foot tub
 Island
Front view
Front of home
Outside kitchen

+5

Response time1 day
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Waters Construction Co.
Waters Construction Co.
5.0(
5
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I’ve worked with Mike and his team for years on all kinds of projects, and they’ve always been amazing to work with. The quality of their work is top-notch, they stay on budget, and everything runs smoothly from start to finish. Their design sense is excellent and they always manage to get things done right on time. I can’t recommend them enough, truly a reliable, talented, and easy-to-work-with crew."
Kitchens
Kitchens
Kitchens
Kitchens
Kitchens

+14

Response time6 hrs
Response rate100%
Avatar for Neill Dougherty
Neill Dougherty
4.9(
15
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Mr Neill Dougherty is an excellent custom builder, designer, communicator, and always professional. His prices are more than fair, especially when we saw the finished room!! We were somewhat unsure of exactly how we wanted the room, so Mr Dougherty helped us by showing several options that would work for our Mother-in-law studio addition. The room is absolutely beautiful! I love the flooring and custom tile work Neill created for the kitchen and restroom. Neill kept us up with all stages of the project, and was very accommodating and polite about my changes and "ideas" along the way. He even had an fantastic designer help me with Interior decoration after the apartment was ready! There has not been any issue we had to call back about. We will hire Mr Dougherty for any future building or remodeling we need! We highly recommend him for any project or home build."
kitchen Remodel
Bathroom Remodels
Custom Masonry and Mantels
Patio Covers and Decks
Response time3 days
Recommended by90%of homeowners
Avatar for The AI Construction LLC
The AI Construction LLC
5.0(
13
)
Addition to Existing Structure - Build

Serving Penryn, 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

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

Serving Penryn, 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%
1 neighbors recently requested a quote
Avatar for AVD Construction
AVD Construction
4.8(
17
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

"Vitaliy demoâ d and rebuilt my second story balcony/deck and did a fantastic job. He is friendly and easy to work with and very knowledgeable. He made many suggestions that made the final product stronger and more stable while looking very nice indeed! He completed the construction in a single day but returned the next day to thoroughly clean up the work site. We had an excellent experience with AVD Construction and wonâ t hesitate to recommend Vitaliy to all our friends and neighbors!"
Framing from ground up
Framing from ground up
Framing from ground up
Framing from ground up
Framing from ground up

+47

Response time5 hrs
Recommended by83%of homeowners
United Services
4.5(
60
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"We are incredibly pleased with the ADU that United Services built at our home. Glenn and his entire team were professional and responsive from the planning stages through to the finished project. They coordinated the architectural design, building permits, and inspections, ensuring that everything proceeded smoothly. They built the ADU to perfectly match our house, using complementary exterior materials, roofing, flooring, and paint color palettes. The commitment and expertise that each team member and subcontractor applied to their work was greatly appreciated. We highly recommend United Services and would certainly hire them again for any future building projects."
 kitchen
Traditional Kitchen - Tile Brown Stainless Steel Appliances
 Fair Oaks
 Custom Homes
 New porch and door

+38

Response time1 day
19 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Marksman Builders, Inc.
Marksman Builders, Inc.
3.5(
20
)
Addition to Existing Structure - Build

Serving Penryn, CA and surrounding areas

Approved

In business since 1983

Customers say: Quick response

"Mark was / is very attentive to our needs and wants. We gave him a hard timeline and he held to it. As challenges came up, which they always do in a project of this size, Mark’s experience was on full display. He was always calm and solved the problems. I would highly recommend Mark to all of our friends for any of their project. In fact, we have already recommended him to a few people."
Expanded Groom's Changing Area
Custom Commercial Kitchen
Expanded Groom's Changing Area
Custom Commercial Kitchen
Expanded Bride's Changing Area

+175

12 neighbors recently requested a quote
Recommended by85%of homeowners
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FAQs for addition to existing structure building service projects in Penryn, 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 Penryn, 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.