Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Flagstaff, AZ

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.

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

Avatar for Schwarder Construction LLC
Schwarder Construction LLC
4.5(
20
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Exceptionally Professional. Was an exceptional "conductor" in the process between sub contractors during the process. Master Bathroom addition (96sq ft) turned out to be the showcase of our home. Took our ideas and suggestions and made it a personal masterpiece. Thanks to Aaron Schwarder."
Remodeling - Kitchen & Bathroom Project
Electrical Project
Remodeling - Kitchen & Bathroom Project
Additional Photos
Additional Photos

+40

Response time11 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Bellco Construction LLC
Bellco Construction LLC
5.0(
5
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I highly recommend Jeff Bell for a complete home renovation. Jeff and his team did an outstanding job transforming the entire home from top to bottom. The renovation included plumbing, electrical, a complete roof replacement, flooring, recessed lighting, new windows, and numerous other upgrades throughout the house. Jeff also helped me get a great deal on a complete set of brand-new appliances, which added even more value to the project. One of the things I appreciated most was Jeff’s communication. He stayed in direct contact with me throughout the entire renovation and provided weekly updates on the progress of the project. That level of communication gave me confidence that everything was being handled properly and kept me informed every step of the way. Jeff takes pride in his work, pays attention to detail, and goes above and beyond to make sure the job is done right. The transformation of the home was incredible, and I am extremely pleased with the final result."
Project Photos
7 neighbors recently requested a quote
VALENTINE & BLADE CONSTRUCTION LLC
5.0(
7
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Valentine & Blade did a fantastic job renovating our two-story deck. They efficiently demolished our old wooden deck and hauled it all away and redesigned and build a new deck using weatherproof Trex. They were very communicative and easy to work with. We couldn't be happier."
Response time10 hrs
8 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Smith Built, LLC
Smith Built, LLC
4.1(
7
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Tyler and his team were excellent to work with. There were very few issues and he was always quick to respond with solutions. The job was a whole 1st floor remodel with wall revoval, relocation of plumbing, new floor and lighting with interior and exterior painting. Great job! Very happy."
Response time3 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
G Good and Sons LLC
4.9(
20
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Ian and his crew did a great job on our bathroom renovation/roof repair! They were all very knowledgeable and professional. We bought our first house almost a year ago and after a few months we noticed some water damage in the ceiling, directly under the skylight. When I called Ian to come give us an estimate, he came later that day! In addition to our roof/skylight repair, we also had our bathroom renovated, as well as some additional spackling and trim work. Top quality work and customer satisfaction are top priorities of G good and sons LLC. Ian and his crew are all great to deal with, we look forward to working with them again soon!"
Full Kitchen Remodel
Full Kitchen Remodel
Full Kitchen Remodel
Full Kitchen Remodel
Full Kitchen Remodel

+15

Response time1 day
Recommended by94%of homeowners
Avatar for JDS Improvements
JDS Improvements
4.4(
122
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"I highly recommend JDS Improvements - for roofing or any other work. (I will be hiring him to do other work around my house later this year.) He removed the old roof and two skylights and replaced them. He coordinated with the HVAC company to remove and replace the roof air conditioner so I was without air conditioning for only a few hours, which, in Arizona is so needed in July! He repaired the inside walls/ceiling that had to be trimmed to accommodate the new skylights. Extremely professional, IMPECCABLE INTEGRITY, responsive, listened and answered all of my many many questions, and accommodated my special needs. His crews are very respectful and after the work was done they cleaned up all areas - inside and outside. When they had to work inside, they put paper on the floors to walk on, paper on the counters, and then put plastic around the skylight opening when they repaired that area. They cared for and respected my house as if it was theirs and left it clean with no trace they were even there. Nothing was too small - the attention to the details was welcoming. Having lived in Sedona for 10 years I have finally found a contractor who does what he says he is going to do, shows up when he says he is going to show up, and not only walks you through the process but also talks to you about possible complications/issues and offers multiple solutions. QUALITY WORK AT GOOD RATES. I know I will never hire any other contractor for any home project I have in the future!! I know that I will never have to worry that the job was done right - the first time!!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Recommended by94%of homeowners
M.L. Sims Frame to Finish, LLC
4.1(
31
)
Addition to Existing Structure - Build

Serving Flagstaff, AZ and surrounding areas

In business since 2001

Free estimates

"Iâ ve never seen a better or more honest builder, contractor, craftsman or worker than Mike Sims. I have over 30 yearsâ experience in the construction business, starting with building houseboats in 1962. Over the years since then, Iâ ve project managed commercial and residential construction in Oregon, California and Arizona. Among the many, many people who have worked for me, Mike Sims clearly stands out with his comprehensive, exceptional skill sets, organized preparations, attention to detail and energetic focus from start to completion of the job. In addition, he brings all this and an extraordinary, friendly, cheerful attitude on the job site. He has more than satisfied us in every project we hired him for because his finished products are things of function and beauty. We whole heartedly endorse him, his wife Monica and their business â Frame to Finnish, LLCâ . In our experience, if Mike says he can do it, it will be done really well and really fast."
Response time10 hrs
Recommended by90%of homeowners
...
Showing 1-10 of 59
FAQs for addition to existing structure building service projects in Flagstaff, AZ

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 Flagstaff, AZ 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.