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Top-Rated Custom home builders in Keystone - Updated Nov 2026

Avatar for Unison Builds, LLC
Unison Builds, LLC
5.0(
7
)
Find a Custom Home Builder

Serving Keystone, CO and surrounding areas

Approved

In business since 1958

Free estimates

Emergency services offered

"It gives me great pleasure to write this review for Unison Builds LLC. Chris and his team handled the complete interior and exterior renovation of our 7,500 square feet office building. Their work included adding seven new offices, a gorgeous marble kitchen and dining room, a wonderful reception area, an executive conference room with a 14-foot table, the CEO's new office, and nearly everything else. He is a reliable builder. His team takes great pride in what they do. And the work proceeded even faster than we expected."
Exterior facade
Mountain home from above
Project: 101,000 sq.ft, 94 unit apartment building
Melrose living room
Soda Creek Remodel

+67

Response time1 day
Response rate93%
11 neighbors recently requested a quote
Barnhouse Innovations
New to Angi
Find a Custom Home Builder

Serving Keystone, CO and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Offers commercial services

Custom Home Design with a Personal As a family-owned and operated architectural design and consulting company, we bring passion, creativity, and personal attention to every project.\n\nFrom custom home plans and remodel designs to professional architectural consulting, we work closely with you to turn your ideas into functional, beautiful spaces. Whether you're building from the ground up or transforming your current home, we guide you through every step of the design process.\n\nWhat we offer:\n• Custom home design\n• Remodel & addition plans\n• Architectural and construction consulting \n• Personalized, one-on-one service\n• Family values and trusted experience\n\n\nAlso offer design build \nStock plan available at a affordable price as well\n\nWhen you work with us, you’re not just another project—you’re part of the family.\n\n

Avatar for Cooper Remodeling
Cooper Remodeling
4.5(
8
)
Find a Custom Home Builder

Serving Keystone, CO and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Stud Construction was professional and gave us great solution on the layout and finish of our 1500 sq ft basement. In addition to the basement we had them install hardwood floors in our dining area and living room and refinish the existing wood floor entrance. Justin was extremely responsive to inquiries and overall communication during all phases of the project. He was able to source subs in a timely manner and fix any concerns we had along the way. The subs were professional and respectful. We're very pleased with the finish and would recommend and use Stud Construction again."
Charles Shed Build
Before we pour the back patio prep work.
Before hall bath pic
General Remodeling Project
Wet Bar area

+78

Recommended by100%of homeowners
Avatar for Don Reboul Construction Company
Don Reboul Construction Company
3.7(
6
)
Find a Custom Home Builder

Serving Keystone, CO and surrounding areas

In business since 1999

Free estimates

"From beginning to end Don was there every step of the way to make sure I understood the process and stayed on track with the agreed upon time frame of the build. I give him a 10 plus rating and would definitely refer anyone looking to build a quality home!!!"
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+29

Recommended by80%of homeowners
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Custom Home Builders FAQs, answered by experts

To get a quote from a builder or general contractor, contact them over the phone or online and explain your project. If you already have house plans drawn up, they’ll need to review them to determine the project's scope before providing you with a quote. Ask for your quote in writing and compare quotes from several pros before choosing the best one for your needs.

The average cost to build a modular home is around $270,000, and most modular homes total between $180,000 and $360,000. Of course, this price varies significantly by location, and the price tends to follow the cost of living in the area. There are quite a few other factors at play that can affect your pricing, including the following:

  • Number of bedrooms and bathrooms

  • Site preparation, including land clearing and leveling

  • Type of foundation

  • Utility connections

  • Cost of building permits

A green home is one that focuses on conservation, with the goal often being net-zero carbon emissions and self-sustainability. It will often include some kind of self-generation equipment, like solar panels or a small wind turbine, high-efficiency electrical components and mechanicals, and high-quality insulation and air sealing to reduce the loss of conditioned air. Many green homes also include xeriscaping or rainwater collection to cut down on drainage and water consumption.

Framing is often the most expensive phase of building a house because it’s time-consuming and requires a lot of materials. It costs between $20,000 and $50,000 on average, depending on materials and labor costs. Before construction begins, it’s possible that purchasing land is the priciest step in the process. Some plots of land sell for $3,000, while others cost upwards of $150,000.

A carriage house is a freestanding building, while a townhouse is connected to other units. A townhouse is a full single-family home and typically shares a parcel of land with other connected homes. A carriage house is rarely used as the sole single-family home on a property and is most often an additional building sharing property with a traditional single-family home. 

The Keystone, CO homeowners’ guide to custom home building

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