Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Kelseyville, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Kelseyville

Avatar for LAKE & MENDO CONSTRUCTION
LAKE & MENDO CONSTRUCTION
4.4(
29
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

Approved

In business since 2013

Free estimates

Offers commercial services

"Nor Cal is the Best! will recommend this company to all my friends thanks Nor Cal I hope you will help me out with more projects sincere thanks Ruby Reinstadler"
Response time2 days
1 neighbors recently requested a quote
Recommended by100%of homeowners
Pabst Blue Ribbon General Construction
4.5(
26
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quality work

"The overall experience was perfect. Friendly and actually listened to me. I had problems with previous work that was done. I hired Mr. Pabst and every single thing was fixed. I was always kept informed. I was shown what they were doing and asked for my approval. Excellent Excellent Excellent."
Response time6 days
7 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Alpine Premium Construction
Alpine Premium Construction
5.0(
5
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

Approved

Free estimates

Offers commercial services

"We had a great experience with Alpine Premium Construction! They remodeled multiple rooms in our home, and everything turned out beautifully. The team was professional, reliable, easy to communicate with, and paid great attention to detail. The entire process went smoothly, and the quality of their work exceeded our expectations. We’re very happy with the results and would definitely use them again. Highly recommend!"
2 neighbors recently requested a quote
Avatar for Cory Benjamen Moore
Cory Benjamen Moore
5.0(
3
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

Approved

In business since 2017

Free estimates

Offers commercial services

We are a locally owned and operated company with over 20 years of industry experience. We specialize in a variety of home improvement projects to include concrete work, carpentry work, and major home repair jobs. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!\n\n

Log Home
Log Home
Log Home
Response time10 mins
Recommended by100%of homeowners
Avatar for Royal Premium Homes, LLC
Royal Premium Homes, LLC
5.0(
3
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

"Patrick Royal from Royal Premium Homes did an excellent job. My bathroom looks amazing. I could not be happier with it. He took the time to do the job correctly. Very trustworthy. I would hire him again."
Response time12 hrs
Response rate97%
5 neighbors recently requested a quote
Avatar for CANI Unlimited LLC
CANI Unlimited LLC
3.7(
3
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

With 25 years of experience in the construction industry CANI Unlimited can accommodate any phase of your project. Contact today for your free estimate and in-home consultation.

11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Addition to Existing Structure - Build

Serving Kelseyville, 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 DeJohn Construction
DeJohn Construction
5.0(
9
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

In business since 2007

Free estimates

"The Job went perfectly.
 Beau did an impeccable job attaching the conservatory to the main house without any dust or  construction debri entering the home.  He cleaned up every day after work. He kept the exact hours he said he would work. He kept the job on schedule.
He worked with the city on all the permitting and inspections.
The quality of workmanship was well beyond my expectations and became the envy of everyone who saw the finished room.
Beau came in right on bid. NO COST OVER RUNS!

I would highly recommend him for any job from building an entire home to remodeling that garage you have been putting off for a while."
Recommended by100%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Addition to Existing Structure - Build

Serving Kelseyville, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
...
Showing 1-10 of 59
FAQs for addition to existing structure building service projects in Kelseyville, 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 Kelseyville, 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.