Top-rated guest house builders.

Get matched with top guest house builders in your area

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.

Guest house builders in Hamilton

Avatar for Big Pine Industrial, Inc.
Big Pine Industrial, Inc.
589 Bass Lane
5.00(
1
)
Approved Pro
Big Pine Industrial, Inc.
589 Bass Lane
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
43 local quotes requested

We are a locally owned/family run and operated company with over 20+ years experience. We specialize in all facets of residential and commercial work. We are extremely competitive and understand the value of building life long relationships with our customers. Once you use us you will never have to find another contractor again. Workmanship guaranteed. Prompt reply to your request. Call today for a free estimate.

"Excellent work and great to work with Patrick and his crew."

Colleen M on January 2025

We are a locally owned/family run and operated company with over 20+ years experience. We specialize in all facets of residential and commercial work. We are extremely competitive and understand the value of building life long relationships with our customers. Once you use us you will never have to find another contractor again. Workmanship guaranteed. Prompt reply to your request. Call today for a free estimate.

"Excellent work and great to work with Patrick and his crew."

Colleen M on January 2025


Avatar for Big Sky Country Contractors
Big Sky Country Contractors
2003 Garfield St
5.00(
7
)
Approved Pro
Big Sky Country Contractors
2003 Garfield St
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
149 local quotes requested

At Big Sky Country Contractors we take pride in showcasing our expertise in a wide range of construction services. We have years of experience in delivering unmatched quality services to our clients. With dedicated attention to detail and a focus on delivering the best results, we guarantee customer satisfaction with every project we undertake. Big Sky Country Contractors has been serving the Missoula Valley for 13+ years, and we offer professional painting that is uniquely tailored to either your family or business.

"The job was done in a proficient and professional manner. The painting crew came in and went over the work to be done to confirm color choices and rooms to be painted. We had already moved all necessary furniture and the crew covered everything with tarps. The work was done very cleanly and fast. The finished rooms look very nice and we are very happy with the final look. Thank you Big Sky Country Contractors for a job well done. We will be giving you a call on our next project."

Rich S on May 2024

At Big Sky Country Contractors we take pride in showcasing our expertise in a wide range of construction services. We have years of experience in delivering unmatched quality services to our clients. With dedicated attention to detail and a focus on delivering the best results, we guarantee customer satisfaction with every project we undertake. Big Sky Country Contractors has been serving the Missoula Valley for 13+ years, and we offer professional painting that is uniquely tailored to either your family or business.

"The job was done in a proficient and professional manner. The painting crew came in and went over the work to be done to confirm color choices and rooms to be painted. We had already moved all necessary furniture and the crew covered everything with tarps. The work was done very cleanly and fast. The finished rooms look very nice and we are very happy with the final look. Thank you Big Sky Country Contractors for a job well done. We will be giving you a call on our next project."

Rich S on May 2024


ATZ, LLC
Located In:
New on HomeAdvisorNew on Angi
Approved Pro
ATZ, LLC
Located In:
New on AngiNew on HomeAdvisor
Approved Pro
63 local quotes requested
5 years of experience

We are a construction company dedicated to customer service and satisfaction guaranteed. We specialize in New Construction, Remodels and all kinds additions to the house including decks.

We are a construction company dedicated to customer service and satisfaction guaranteed. We specialize in New Construction, Remodels and all kinds additions to the house including decks.


Avatar for SE Construction
SE Construction
PO Box 478
5.00(
1
)
Approved Pro
SE Construction
PO Box 478
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
98 local quotes requested

Small construction company looking to complete all projects big and small in the bitterroot valley, from remodeling to new construction. We do decks, pole barns, kitchen/bath remodels and more. Have a budget? No problem, we will be happy to work with you on the price. Weekday and weekend availability.

"They did a great job remodeling our living room! From floors to painting the walls to everything in between. It was done in a timely manner and they were very easy to communicate with! I would recommend to anyone who needs work done!"

Jessica R on July 2023

Small construction company looking to complete all projects big and small in the bitterroot valley, from remodeling to new construction. We do decks, pole barns, kitchen/bath remodels and more. Have a budget? No problem, we will be happy to work with you on the price. Weekday and weekend availability.

"They did a great job remodeling our living room! From floors to painting the walls to everything in between. It was done in a timely manner and they were very easy to communicate with! I would recommend to anyone who needs work done!"

Jessica R on July 2023


RED OAK CONSTRUCTION
3177 Mittower Rd
3.50(
2
)
RED OAK CONSTRUCTION
3177 Mittower Rd
3.50(
2
)
Customers say: Quality work
20 years of experience

LICENSED AND INSURED FREE ESTIMATES REFFERALS & PICTURES AVAILABLE OWNER-OPERATED. COST IS DETERMINED BY THE JOB AND BID IS PROVIDED.

LICENSED AND INSURED FREE ESTIMATES REFFERALS & PICTURES AVAILABLE OWNER-OPERATED. COST IS DETERMINED BY THE JOB AND BID IS PROVIDED.


Auto Transport - United Freight Of America
1844 N Nob Hill Rd
4.82(
941
)
Auto Transport - United Freight Of America
1844 N Nob Hill Rd
4.82(
941
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021


Sam Cates Construction LLC
34748 Creekside Ln.
4.50(
2
)
Sam Cates Construction LLC
34748 Creekside Ln.
4.50(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

small contracting business, not afraid to try new experiences

small contracting business, not afraid to try new experiences


Annau Construction
701 55th Ave S
5.00(
2
)
Annau Construction
701 55th Ave S
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Licensed and registerd with state of Montana

Licensed and registerd with state of Montana


EverLog™ Systems
8012 Deschamps Ln
5.00(
2
)
EverLog™ Systems
8012 Deschamps Ln
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

ROUNTREE CONSTRUCTION
2228 UPPER RIVER RD
No reviews
ROUNTREE CONSTRUCTION
2228 UPPER RIVER RD
No reviews
...
Showing 1-10 of 188

Guest house building services FAQs

In most states, yes—you can build a guest house, but every city or county sets its own zoning rules and building codes. Before breaking ground, check local ordinances, confirm lot setbacks, and secure the right permits. A local contractor or design-build firm can walk you through the paperwork and site requirements so your project starts on solid legal footing.

Yes—homeowners often tap a few different financing tools. A home-equity line of credit (HELOC) lets you borrow against your equity as you need funds. If you prefer a lump sum tied directly to the project, a short-term construction loan can roll into a second mortgage once the build is complete. Cash-out refinancing is another option: you replace your current mortgage with a larger one and use the difference to cover construction costs.

When you build a guest house, you’re creating a separate structure for hosting visitors without the full amenities needed for permanent living. An accessory dwelling unit, however, includes a complete kitchen and bathroom, meeting building codes for a long-term residence. This key difference makes an ADU ideal for long-term occupancy or rental income, adding enduring value to your property.

How many rooms you need depends on how you plan to use the space. Aim for one bedroom per every one or two occupants to make sure everyone has enough privacy and comfort. Added living and dining areas give you extra functionality, especially for rental use or long-term stays.

Most homeowners pick somewhere between 600 and 1,500 square feet to fit all the essentials. Make sure your design supports one to two occupants per bedroom and includes enough common areas for comfortable daily living. A well-proportioned layout boosts both functionality and property value.

No—a guest house isn’t just a bump-out on your main home. A bump-out is a small extension within an existing room for extra seating or storage. In contrast, you build a guest house as a standalone building with its own foundation and amenities, giving you a fully separate living area that can boost your property’s versatility and value.

The homeowners guide to guest house building services
From average costs to expert advice, get all the answers you need to get your job done.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
Share project details to get started.