Mike put our HVAC system into a new build home. He was in over his head, and we have spent thousands and thousands of dollars since then to try and fix his mistakes. We changed HVAC vendors & our new vendor knows him and said that he has gotten lots of business from Service 1st customers. If...

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Average homeowner rating146
Verified treehouse building services reviews
Verified Reviews for Treehouse Building pros in Oshkosh, WI
Last update on October 14, 2025
- Jeremy D.
- Nicole D.
This job was a disaster from day one. There were multiple safety issues and it was difficult to work with Greg. When they finally started the work, one of the employees leaned a ladder against the frame of the old window and while taking the trim off, the window crashed into the living room...
- Michael W.
They overcame problems with hidden structural features without any delays. Electrical and plumbing subcontractors were excellent as were the flooring and carpentry people. The only minor delays were experienced with the cabinet subcontractor, who was our choice, not Portside builders first...
- Eric R.
Superb job. Literally every person who visits comments on how beautiful our kitchen/living room/dining room is. The attention to detail was incredible, Jason Geffers is a perfectionist and thinks of every little detail. His crew is professional and efficient. There were 2 things that...
- Nanette B.
I was impressed from my first phone call. The woman who answered explained exactly what her firm could do, how they would do it, how long it would take, and how much it would cost. I had called several area pest control firms because we had a pretty serious mouse problem in a building that...
- David K.
Went very well. As I have used him in the past and the job turned out excellant as usual. He replaced defective cable. Had to run a new line from one bedroom to another. My builder had left no outlet in 2fl area. Rob explained it was not in code without an outlet there.
- William K.
Jan and his crew were very friendly and communicative. Jan was very conscientious of the overall appearance and functionality. When he saw something he didn't think looked right or would not be very functional, he talked to us about it and together we came up with a mutually agreeable...
- Casey R.
Two stairs made from retaining wall blocks with caps and brick walkway to the stairs. I didn't do apple to apple bid so can't comment on the price. The two men showed up promptly at the agreed time, broke up and hauled away the cement stairs + sidewalk and then spent the good part of the day...
Find Treehouse builders in Oshkosh

Willow Bay Builders
Willow Bay Builders
For over two decades, Willow Bay Builders has been building new homes and remodeling in the Fox Cities area. We're not getting older, ...we're getting better! Put our knowledge and experience to work today and see whet dedicated professionals can bring to your project.
"Gerry is an exceptional contractor and exceptional human being. As newer homeowners and inexperienced handy persons, Gerry went out of his way to explain processes and provide thoughtful insight into the work being completed. He has a great relationship with his subcontractors and that was prominent when issues arose as they were quickly fixed. We provided Gerry with a professional drawing of the basement and he provided his thoughts and made quality improvements without changing the overall layout. Our basement was built during the COVID pandemic and Gerry stored masks and disinfectant directly outside our front door so all parties involved felt comfortable and safe. During the initial quote was honest about the supply chain disruption and the potential for delay in supplies. Overall, it was fantastic to have an individual flexible and accommodating to the changing environment. The quality of finished basement exceeded our expectations by far. We were skeptical of hiring a general contractor at first, but have no questions since hiring Gerry. If we were to build a home or have another significant remodel, we would hire Gerry again in a heartbeat."
Nathan W on October 2020
For over two decades, Willow Bay Builders has been building new homes and remodeling in the Fox Cities area. We're not getting older, ...we're getting better! Put our knowledge and experience to work today and see whet dedicated professionals can bring to your project.
"Gerry is an exceptional contractor and exceptional human being. As newer homeowners and inexperienced handy persons, Gerry went out of his way to explain processes and provide thoughtful insight into the work being completed. He has a great relationship with his subcontractors and that was prominent when issues arose as they were quickly fixed. We provided Gerry with a professional drawing of the basement and he provided his thoughts and made quality improvements without changing the overall layout. Our basement was built during the COVID pandemic and Gerry stored masks and disinfectant directly outside our front door so all parties involved felt comfortable and safe. During the initial quote was honest about the supply chain disruption and the potential for delay in supplies. Overall, it was fantastic to have an individual flexible and accommodating to the changing environment. The quality of finished basement exceeded our expectations by far. We were skeptical of hiring a general contractor at first, but have no questions since hiring Gerry. If we were to build a home or have another significant remodel, we would hire Gerry again in a heartbeat."
Nathan W on October 2020

Elite Building & Design
Elite Building & Design
We have a collective of 25 years of industry experience with finish carpentry, bespoke design, interior design and floor plan renderings, tile work, custom show garages, tiny home building, flooring, framing, drywall, plaster, kitchen remodels, bathroom remodels, refinishing of-doors, trim, windows, and cabinets. We can do full builds from start to finish! We are licensed General Contractors, and we are INSURED!
"Went great! Excellent communication and workmanship."
KAREN A on December 2024
We have a collective of 25 years of industry experience with finish carpentry, bespoke design, interior design and floor plan renderings, tile work, custom show garages, tiny home building, flooring, framing, drywall, plaster, kitchen remodels, bathroom remodels, refinishing of-doors, trim, windows, and cabinets. We can do full builds from start to finish! We are licensed General Contractors, and we are INSURED!
"Went great! Excellent communication and workmanship."
KAREN A on December 2024

NG Carpentry & Home Repair
NG Carpentry & Home Repair
I am an independent carpenter and handyman operating out of Oshkosh, WI. I specialize in small scale framing and remodeling as well as general handyman services. I emphasize hard work, efficiency and honesty. My aim is to provide professional quality work done in a timely manner. With almost a decade of experience in the industry, I have the skills to tackle almost any project and can do so at a competitive price.
"Went very well and he went above and beyond to help with getting supplies/lumber due to complications with Lowe’s."
Stacy H on September 2024
I am an independent carpenter and handyman operating out of Oshkosh, WI. I specialize in small scale framing and remodeling as well as general handyman services. I emphasize hard work, efficiency and honesty. My aim is to provide professional quality work done in a timely manner. With almost a decade of experience in the industry, I have the skills to tackle almost any project and can do so at a competitive price.
"Went very well and he went above and beyond to help with getting supplies/lumber due to complications with Lowe’s."
Stacy H on September 2024

HAPPY HOME REMODELING, LLC
HAPPY HOME REMODELING, LLC
Beginning in 2017, Happy Home Contracting, LLC has been offering interior and exterior residential remodeling services to homeowners and real estate investors. We are fully insured, licensed dwelling contractor by the state of Wisconsin. We are investors and flippers ourselves, who specialize in buying broken houses and completing extensive remodels to create high end rentals. We offer remodeling services to homeowners looking to transform their home into a new vision. Between 2017 and 2022, we flipped 18 houses and completed dozens of remodeling projects for customers. Roofing, Siding, Windows and Doors, Kitchens, Bathrooms, Walls and Floors, We have the experience and expertise to make your vision a reality.
"Everyone who worked on my project were subcontractors. The contact person’s contracting company did not do a good job, then tried 3 times to fix it by remudding and painting. It truly was unacceptable drywall installation. This doubled the length of the project. Corners were cut, critical steps were not done. I was left finally with a finished project done correctly by another drywall installer. It was not a pleasant experience, and I do not recommend them."
Lou H on September 2025
Beginning in 2017, Happy Home Contracting, LLC has been offering interior and exterior residential remodeling services to homeowners and real estate investors. We are fully insured, licensed dwelling contractor by the state of Wisconsin. We are investors and flippers ourselves, who specialize in buying broken houses and completing extensive remodels to create high end rentals. We offer remodeling services to homeowners looking to transform their home into a new vision. Between 2017 and 2022, we flipped 18 houses and completed dozens of remodeling projects for customers. Roofing, Siding, Windows and Doors, Kitchens, Bathrooms, Walls and Floors, We have the experience and expertise to make your vision a reality.
"Everyone who worked on my project were subcontractors. The contact person’s contracting company did not do a good job, then tried 3 times to fix it by remudding and painting. It truly was unacceptable drywall installation. This doubled the length of the project. Corners were cut, critical steps were not done. I was left finally with a finished project done correctly by another drywall installer. It was not a pleasant experience, and I do not recommend them."
Lou H on September 2025

Evolution Drafting
Evolution Drafting
Our firm is a dynamic provider of drafting and house plan services, dedicated to turning your visions into tangible and pleasing structures. With a commitment to excellence, we bring expertise and innovation to every project we undertake. We specialize in comprehensive drafting services tailored to meet diverse client needs. Our offering include: Design: Crafting unique and functional designs that blend creativity with practicality. Drafting Services: Precision and attention to detail in creating accurate and detailed drafts for seamless project execution. 3D Modeling: Bringing designs to life with realistic 3D models that provide a vivid preview of the final structure. Project Management: From concept to completion, we offer end-to-end project management ensuring timely and efficient delivery. Interior Design: Enhancing spaces with innovative interior designs that harmonize aesthetics and functionality. Detail Services Offered: - Building Code Compliance - Construction Documentation - Renovation and Remodeling Plans About our Team: Our team comprises draftsman and project managers, each bringing a unique skill, style and experience to the table. Collaborative teamwork and alliance is at the core of our success, ensuring a holist approach to every project. We take pride in our commitment to delivering high-quality work on every project. Our rigorous quality control measures, pays attention to client requirements, and adherence to industry standards are the cornerstones of our success. Your satisfaction is our top priority and guarantee. At Evolution Drafting, we don't design structures; we create environments that inspire and endure. Work with us and experience the art of living.
"slow response times. no onsite visit, so had to confirm all measures myself. good product in the end."
Jim E on September 2025
Our firm is a dynamic provider of drafting and house plan services, dedicated to turning your visions into tangible and pleasing structures. With a commitment to excellence, we bring expertise and innovation to every project we undertake. We specialize in comprehensive drafting services tailored to meet diverse client needs. Our offering include: Design: Crafting unique and functional designs that blend creativity with practicality. Drafting Services: Precision and attention to detail in creating accurate and detailed drafts for seamless project execution. 3D Modeling: Bringing designs to life with realistic 3D models that provide a vivid preview of the final structure. Project Management: From concept to completion, we offer end-to-end project management ensuring timely and efficient delivery. Interior Design: Enhancing spaces with innovative interior designs that harmonize aesthetics and functionality. Detail Services Offered: - Building Code Compliance - Construction Documentation - Renovation and Remodeling Plans About our Team: Our team comprises draftsman and project managers, each bringing a unique skill, style and experience to the table. Collaborative teamwork and alliance is at the core of our success, ensuring a holist approach to every project. We take pride in our commitment to delivering high-quality work on every project. Our rigorous quality control measures, pays attention to client requirements, and adherence to industry standards are the cornerstones of our success. Your satisfaction is our top priority and guarantee. At Evolution Drafting, we don't design structures; we create environments that inspire and endure. Work with us and experience the art of living.
"slow response times. no onsite visit, so had to confirm all measures myself. good product in the end."
Jim E on September 2025

258 Renovations
258 Renovations
Interior and Exterior remodeling company, located in south east Wisconsin. We pride ourselves in our work, from the outside of the home to remodeling inside big or small we are ready to help with your project. We are a small business and local to West Allis. We are offering free estimates on discounts for new clients. Reach out now and we can chat about your project and how we can help, if we can not help we will let you know.
"Fantastic experience! Mitch and the team were really great to work with. The work was done quickly and at a high standard, and Mitch was always open to discuss options and offer suggestions. Would definitely recommend this team!"
Sean W on February 2025
Interior and Exterior remodeling company, located in south east Wisconsin. We pride ourselves in our work, from the outside of the home to remodeling inside big or small we are ready to help with your project. We are a small business and local to West Allis. We are offering free estimates on discounts for new clients. Reach out now and we can chat about your project and how we can help, if we can not help we will let you know.
"Fantastic experience! Mitch and the team were really great to work with. The work was done quickly and at a high standard, and Mitch was always open to discuss options and offer suggestions. Would definitely recommend this team!"
Sean W on February 2025
Aaron Eubanks
Aaron Eubanks
I am a father of 3 who enjoys providing customer service to those who seek help solving issues. I enjoy my work and take pride in it. Doing work orders are my favorite and something that comes naturally. The combination of helping complete strangers and putting my 25 years of experience to work for clients who can appreciate a dedicated, skilled worker providing solutions.
I am a father of 3 who enjoys providing customer service to those who seek help solving issues. I enjoy my work and take pride in it. Doing work orders are my favorite and something that comes naturally. The combination of helping complete strangers and putting my 25 years of experience to work for clients who can appreciate a dedicated, skilled worker providing solutions.

A2Z Power Washing
A2Z Power Washing
A2Z Power Washing is a locally owned and operated company that values honesty and integrity in all aspects of our business. We pride ourselves on our innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
"Chad did an excellent job. I highly recommend him. Couldn't upload pictures."
Michael M on June 2024
A2Z Power Washing is a locally owned and operated company that values honesty and integrity in all aspects of our business. We pride ourselves on our innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
"Chad did an excellent job. I highly recommend him. Couldn't upload pictures."
Michael M on June 2024

Grass Doctor Lawn and Landscaping
Grass Doctor Lawn and Landscaping
We are a family owned and operated. I started mowing lawns and doing landscape at a very young age. I was hedging shrubs when I was 6 years old and started mowing lawns for income when I was 12. Now we specialize in a wide verity of design, construction, and property maintenance services. We have experience with patios, sidewalks and walls made from brick & block, poured concrete, and stone. We provide quality trees, shrubs and plant material at discount prices. And of course we live up to our name with our lawn install and maintenance service. You can count on us to provide the highest quality of materials and workmanship every step of the way. If you are looking for a contractor that returns phone calls promptly, and follows through on promises we are that contractor. We believe in making sure our customers come first and making them repeat customers in the future.
"Troy was very responsive to our dumpster request, and the rental was a good value for the money."
Steve E on October 2024
We are a family owned and operated. I started mowing lawns and doing landscape at a very young age. I was hedging shrubs when I was 6 years old and started mowing lawns for income when I was 12. Now we specialize in a wide verity of design, construction, and property maintenance services. We have experience with patios, sidewalks and walls made from brick & block, poured concrete, and stone. We provide quality trees, shrubs and plant material at discount prices. And of course we live up to our name with our lawn install and maintenance service. You can count on us to provide the highest quality of materials and workmanship every step of the way. If you are looking for a contractor that returns phone calls promptly, and follows through on promises we are that contractor. We believe in making sure our customers come first and making them repeat customers in the future.
"Troy was very responsive to our dumpster request, and the rental was a good value for the money."
Steve E on October 2024
Aguilar 1 Construction LLC
Aguilar 1 Construction LLC
With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We maintain close communication with our clients every step of the way of their project to ensure client satisfaction. We're here to make the client happy. Give us a call today! We look forward to working with you!
"Saul and his crew were Amazing . Very helpful and clean ,they brought me samples and explained the process . Will hire again!!!!"
Fidelia C on June 2025
With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We maintain close communication with our clients every step of the way of their project to ensure client satisfaction. We're here to make the client happy. Give us a call today! We look forward to working with you!
"Saul and his crew were Amazing . Very helpful and clean ,they brought me samples and explained the process . Will hire again!!!!"
Fidelia C on June 2025
FAQs for treehouse building projects in Oshkosh, WI
The average cost to hire a handyman ranges from about $40 to $140 per hour. Average project cost ranges between $180 and $700, but the cost per hour and per project depends heavily on the type, size, and complexity of the project. The pro’s experience level and your location also factor into how much a handyman charges per hour or per project. You can also expect to pay higher rates or additional fees for emergency services, or around periods of high customer demand, like holidays.
One starting point to find a local home builder is to collect suggestions from friends and neighbors. However, it’s still wise to do some more research before you hire a builder. Read reviews to supplement any word-of-mouth recommendations. Check sources like Angi that have standards and criteria in place to screen the pros it lists can also help you find more reputable local home builders.
Typically, it’s more affordable to buy an existing home than it is to build a new one. New construction loan interest rates tend to be higher than interest rates for traditional mortgages. Additionally, the cost of materials is likely higher when building a new home than it was when an existing home was built (unless it’s a very new one). You’re also paying for all new appliances, finishes, permits, inspections, and connections for water, gas, and electricity.
Knowing if you need an architect for your project can be tricky, especially if you've never worked with one before. In general, small remodeling projects like replacing fixtures typically don't require the expertise of an architect. However, larger projects, like moving walls or adding an addition to your home, should include an architect to ensure the project is structurally sound.
The cost to build a detached garage for two cars costs about $26,400 on average. Prices range from $19,200 to $33,600, depending on your location, the garage size, height, materials, and site prep required. Additional cost factors include any plumbing, electrical wiring, and insulation. If you need to build a concrete foundation for a new detached garage, you can expect to pay $1,000 to $8,600 for this essential addition.
The Oshkosh, WI homeowners’ guide to treehouse building services
From average costs to expert advice, get all the answers you need to get your job done.
- •
Curious how much does a draftsman cost? Learn average prices, key cost factors, and tips to save on drafting services for your next home project.
The cost to build a detached garage depends on the size, materials, labor, and more. Read this guide to learn more about detached garage costs.
Need to know how much blueprints cost for your new construction project? Use this comprehensive cost guide to get an accurate estimate for your build.
You'll encounter many types of architects in your search for the best pro. Keep these specialists in mind before your next renovation or home build.
No gym membership? No problem! Create the ultimate home gym with these amazing garage home gym ideas.
Space planning is a crucial part of architecture and design, as it helps build and organize your home in a way that will maximize every room’s utility.
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