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

Avatar for Next Gen Construction
Next Gen Construction
4.7(
15
)
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"They did a great job for the job hired - including all the clean up. They also did a little bit more in breaking down and disposing of many other boxes. Would definitely recommend."
Modern Bathroom Remodel
Modern Kitchen
Basement remodel
Basement remodel
Basement remodel

+8

Response time2 days
21 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for DHP Handyman
DHP Handyman
4.3(
3
)
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

"Friendly and professional. Quality workmanship. I got a detailed written quote the same day and the project was completed VERY QUICKLY and exactly as discussed and documented in the written contract. I really liked that there was no attempt to oversell, the plan for the repair and replacement was tailored so that I got exactly what was needed done right: everything from well constructed new fence on the sections that were damaged beyond repair to functional fixes on the sections that just needed a little bit of work. I am very pleased with the process and the results. I highly recommend DHP Construction and intend to use them for future projects."
Response time2 hrs
Response rate98%
Recommended by66%of homeowners
Crown Custom Homes
New to Angi
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

Crown Custom Homes is a residential general contractor serving the Quad Cities. We handle custom builds, whole-home renovations, kitchen and bath remodels, additions, and decks.\nOur founder started framing houses in 2007 and has spent over 15 years in high-end framing and finish carpentry. He stays personally accountable from the first walkthrough to the final punch list, so you deal directly with the person responsible for your project.\nEvery job follows a clear process: discovery, site visit, a defined scope, an itemized flat-rate proposal, and progress updates once work begins. We're licensed in Davenport, registered with the State of Iowa, bonded, and insured, and our work is backed by a workmanship warranty.\nFree estimates on decks, windows, doors, and other smaller projects. We build for homeowners who value craftsmanship and communication. If you want it done right the first time, we'd like to hear about your project.

Avatar for Bath Planet of Springfield
Bath Planet of Springfield
4.8(
18
)
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"I really didn't think that someone could come in and tear out our old bathroom and put an entire new bathtub with all new plumbing fixtures. But they made it happen. Great quality and very nice people to work with."
Tub to Shower Conversions
Shower Remodeling
Bathtub Remodeling
Bathtub Remodeling
Tub to Shower Conversions

+25

Recommended by92%of homeowners
Avatar for Sears Home Improvement Products
Sears Home Improvement Products
3.7(
1,712
)
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

In business since 1886

Free estimates

Credit card accepted

"After removing all the cabinet doors, they began prepping the outside of the cabinets. And then began cutting and gluing, which is a white laminate, to the outside.  Their application and cutting were very precise and very well done.  All doors and hardware were attached.

Next they proceeded with the countertops.  Since we were not installing granite, just new Formica, they were able the remove the old Formica and then lay the new on the existing base.

They then proceeded to install the new garbage disposal, double sink and faucet set.

The product is holding up very well.  I was a bit leery of going with white, but that's what I wanted, and I am extremely pleased at how easy it is to keep clean.  It still looks brand new!

We have nothing but praise for Sears and their personnel.  The saleslady was extremely helpful in guiding me to make the right choices.  As I said previously, we are also very pleased with the installers.  They would be welcomed into our home for more work if needed.

They did a complete and excellent cleanup, including hauling away the old cabinet doors for disposal.  Overall, I think the job took only two (or three) days.

Overall we are extremely pleased with the job.  Not only has it added value to our home, but it has added value to our enjoyment of our home.  

Price wise, they were over two other estimates.  However, those were individual contractors; we weren't able to check them out. The extra we paid was well worth the security we felt by dealing with a well known company and knowing if a problem occurred, they would make it right.  The difference in the estimates was only about $2,000.00."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Recommended by74%of homeowners
Avatar for WBH Improvements
WBH Improvements
5.0(
6
)
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"WBH Improvements did an excellent job on my home. They did a lot of work and went far above and beyond expectations. Very well-mannered and professional. Very comfortable to be around. Will definitely being calling them for further assistance as more work needs to be completed!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Recommended by100%of homeowners
Avatar for Homemade Design
Homemade Design
3.7(
322
)
Addition to Existing Structure - Build

Serving Davenport, IA and surrounding areas

In business since 2006

Credit card accepted

"It was fine. The original design didn’t meet my needs based on the information I provided them. However, they revised the plans which worked out better for me. They were able to get the first draft to me pretty quickly."
Pennsylvania Master Bathroom
Boston Small Condo Kitchen
California Client Saves with HMD Designer Discounts
Recommended by54%of homeowners
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FAQs for addition to existing structure building service projects in Davenport, IA

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 Davenport, IA 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.