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Verified Reviews for Home Building pros in Lancaster, WI

*The Angi rating for Home Building companies in Lancaster, WI 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 Lancaster, WI 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 January 08, 2026

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Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
•Approved Pro

Sentri Homes

New on AngiNew on Angi
•Approved Pro
3 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 A & M Windows Doors and More

A & M Windows Doors and More

3.67(
3
)

A & M Windows Doors and More

3.67(
3
)
35 years of experience

Our mission is simple; to provide products that are Top Rated by Consumer Reports and to provide the most energy efficient windows, doors, siding, and roofing available on the market today at a price anyone can afford. We are the exclusive dealer for INFINITY from Marvin Windows and Patio Doors in Northeast Iowa. Marvin has a rich history of craftsmanship, knowledge and dedication dating back to 1912. We are the exclusive dealer for Ultra Seal Maintenance-Free Vinyl Windows by Polaris Windows - Polaris was started in 1944 and Ultra Seal Vinyl Windows have the industry's lowest air infiltration - .01. A&M’s owner and installers are all master certified and trained in windows and doors. This allows our business to offer one of the best installation and service warranties in the State of Iowa - Lift-Time Installation and Service Warranty. In addition, to our "investment protection plan". Again, we offer products that are top-rated from Consumer Reports like Marvin Windows and Doors, INFINITY "Ultrex-Fiberglass" from Marvin Windows and Patio Doors, Heartland Siding Products, Mitten Siding, GAF & Certain-Teed Roofing Shingles, AZEK Decking. All of our products are made by companies based in the USA that have been in business for over 50 years. In addition, all of our products come with the industry's best owner protection policy — a non pro-rated, transferable plan, and most of our products offer a full lifetime warranty. We offer 0% APR financing from 6 months to 4 years. We offer GE and Wells Fargo financing and also offer Veridian Credit Union Financing as low as 3.25%. Read more about the A&M Windows Doors & More, INFINITY from Marvin Windows, Marvin Windows, and Soft-Lite Windows and Doors as well as our commitment to innovation at www.AandMWindows.com. Our phones are answered 24/7 - so please feel free to call us anytime at 1-877-640-1099 or Local at 319-232-1099.

Our mission is simple; to provide products that are Top Rated by Consumer Reports and to provide the most energy efficient windows, doors, siding, and roofing available on the market today at a price anyone can afford. We are the exclusive dealer for INFINITY from Marvin Windows and Patio Doors in Northeast Iowa. Marvin has a rich history of craftsmanship, knowledge and dedication dating back to 1912. We are the exclusive dealer for Ultra Seal Maintenance-Free Vinyl Windows by Polaris Windows - Polaris was started in 1944 and Ultra Seal Vinyl Windows have the industry's lowest air infiltration - .01. A&M’s owner and installers are all master certified and trained in windows and doors. This allows our business to offer one of the best installation and service warranties in the State of Iowa - Lift-Time Installation and Service Warranty. In addition, to our "investment protection plan". Again, we offer products that are top-rated from Consumer Reports like Marvin Windows and Doors, INFINITY "Ultrex-Fiberglass" from Marvin Windows and Patio Doors, Heartland Siding Products, Mitten Siding, GAF & Certain-Teed Roofing Shingles, AZEK Decking. All of our products are made by companies based in the USA that have been in business for over 50 years. In addition, all of our products come with the industry's best owner protection policy — a non pro-rated, transferable plan, and most of our products offer a full lifetime warranty. We offer 0% APR financing from 6 months to 4 years. We offer GE and Wells Fargo financing and also offer Veridian Credit Union Financing as low as 3.25%. Read more about the A&M Windows Doors & More, INFINITY from Marvin Windows, Marvin Windows, and Soft-Lite Windows and Doors as well as our commitment to innovation at www.AandMWindows.com. Our phones are answered 24/7 - so please feel free to call us anytime at 1-877-640-1099 or Local at 319-232-1099.

Donovan Brothers Construction

5.00(
1
)

Donovan Brothers Construction

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Donovan Brothers Construction is a Dubuque, Iowa based residential and commercial construction company that has been building extraordinary structures with over 15 years experience. Our quality workmanship has earned us a reputation as one of the area's premiere contractors. We specialize in ground-up construction as well as renovations, add-ons, and remodeling. Our #1 goal is to make your dreams a reality

Donovan Brothers Construction is a Dubuque, Iowa based residential and commercial construction company that has been building extraordinary structures with over 15 years experience. Our quality workmanship has earned us a reputation as one of the area's premiere contractors. We specialize in ground-up construction as well as renovations, add-ons, and remodeling. Our #1 goal is to make your dreams a reality

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Home Building questions, answered by experts

Depending on size, customization, and location, costs range from $100,000 to $300,000.

Yes, most general contractors require a down payment for project completion. A reasonable down payment for a contractor is 10% to 25% of the total project cost, though that will vary based on project size and location. The down payment helps cover the upfront costs of materials and permits and helps ensure payment for the project at hand. 

Building a new home can be more expensive than buying an existing one, depending on the housing market in your area. Many homeowners still find that building a new house is worth the investment as they can choose the exact layout they want, as well as to choose their own floors, wall coverings, appliances, and finishes. If you live close enough to the build site, you can also stop by to check on the builder’s progress, which can provide some peace of mind that the project is worth it.

Green homes are often more expensive to build, averaging around $200 per square foot compared to the $150 per square foot you’d spend to build a standard home. However, green homes can save you money on your utility bills by consuming less energy or creating energy using solar panels or wind turbines on-site. They’re more expensive to build, but they often end up costing less in the long run.

To qualify as a guest house, a structure needs to meet your local building code requirements. In some locations, a guest house must be a separate residence from the primary home. In other locations, you may be able to connect the two buildings and still call the second building a guest house. However, a structure doesn’t often need a minimum size to qualify as a guest house.

The Lancaster, WI homeowners’ guide to home building services

From average costs to expert advice, get all the answers you need to get your job done.

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