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Verified Reviews for Home Building pros in Spencer, IA

*The Angi rating for Home Building companies in Spencer, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Building needs.

*The HomeAdvisor rating for Home Building companies in Spencer, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Building needs.

Last update on December 13, 2025

Find Home builders in Spencer

Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
•Approved Pro

Sentri Homes

New on AngiNew on Angi
•Approved Pro
2 years of experience
Free onsite estimate

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Avatar for Kinzler Construction Services

Kinzler Construction Services

5.00(
10
)

Kinzler Construction Services

5.00(
10
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

With 30 years of experience, Kinzler Construction Services is the right contractor for the job. Call us today for a free estimate.

With 30 years of experience, Kinzler Construction Services is the right contractor for the job. Call us today for a free estimate.

Avatar for Born Again Interiors

Born Again Interiors

4.25(
12
)

Born Again Interiors

4.25(
12
)
Customers say: Super punctual
24 years of experience

Family owned and operated residential and light commercial, contracting and sub contracting services. Additional Services: Handymen. Hardwood Flooring Sales, Installation, Refinishing. Interior Design & Decorating. Painting - Interior. Remodeling - Basements. Remodeling - General. Remodeling - Kitchen & Bathroom. Remodeling - Modular & Mobile Home. Remodeling - Sunrooms & Patio Enclosures. Siding. Windows.

Family owned and operated residential and light commercial, contracting and sub contracting services. Additional Services: Handymen. Hardwood Flooring Sales, Installation, Refinishing. Interior Design & Decorating. Painting - Interior. Remodeling - Basements. Remodeling - General. Remodeling - Kitchen & Bathroom. Remodeling - Modular & Mobile Home. Remodeling - Sunrooms & Patio Enclosures. Siding. Windows.

City Builders

3.43(
23
)

City Builders

3.43(
23
)
38 years of experience

Additional contact name - Dwight Wielenga.

"Horrible, quality of work was horrible, billed me for work that was not even done on my property. Will not take charges off the invoice for the work that was not done. I refuse to pay for work that was not done and they will not return my phone calls to discuss the discrepancy on the invoice and now put a lien on my property even though I paid for the work that was actually done. They will not release the lien or discuss the invoice with me. I would not recommend them at all."

Stephanie P on January 2025

Additional contact name - Dwight Wielenga.

"Horrible, quality of work was horrible, billed me for work that was not even done on my property. Will not take charges off the invoice for the work that was not done. I refuse to pay for work that was not done and they will not return my phone calls to discuss the discrepancy on the invoice and now put a lien on my property even though I paid for the work that was actually done. They will not release the lien or discuss the invoice with me. I would not recommend them at all."

Stephanie P on January 2025

Creating Spaces

4.60(
5
)

Creating Spaces

4.60(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I work with homeowners to clearly define the problems; explore the possibilities; create a proportioally correct Before plan; personalize the designs for the After plan. These drawings are what is needed to effectively communicate with contractors and obtain competitive bids.

I work with homeowners to clearly define the problems; explore the possibilities; create a proportioally correct Before plan; personalize the designs for the After plan. These drawings are what is needed to effectively communicate with contractors and obtain competitive bids.

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Home Building questions, answered by experts

This answer varies based on where you are, but most states require that all homes are greater than 320 square feet. Remember that four walls are not the only requirements—windows, closet space, minimal ceiling heights, and indoor air quality are also factors. Each state and municipality differs, though, and as some don’t consider tiny homes permanent shelters, you’ll need to check to ensure you aren’t violating any local or state laws with your build.

In the U.S., original and converted carriage houses are most often found in New England, New York, and other parts of the Northeast. New construction carriage houses can be found across the country, and are often added to properties with Colonial-style homes for additional living, storage, or work space, although they can be found in many different styles.

A guest house is not a bump-out addition. A bump-out addition is a small home addition built onto a preexisting room of your house, like a bay window or walk-in closet. While you can do a bump-out addition to a constructed guest house, a guest is not a bump-out addition. Other common bump-out additions are extra living room seating, space for a bathtub in a bathroom, and extra cupboard space in a kitchen. 

You can’t add home addition costs to an existing mortgage, but you can include them in a new mortgage if you take out a rehab loan. Rehab loans—FHA-backed 203k loans and conventional rehab loans—are for more than the value of a property, and the excess is meant to cover the cost of a renovation or home addition.

Since building up tends to provide useful bedrooms and other extra spaces without the need to do a lot of foundation work and cut into your yard, second stories tend to have better ROI—up to 65%—than other kinds of additions. But ROI will depend on the type of rooms you are planning and what your current house has. It’s not a very reliable way to judge the success or failure of a project, so consider other factors as well.

The Spencer, IA homeowners’ guide to home building services

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