An addition, start to finish

  1. Your project gets a start date. And a finish date.

    Swiss Mountain Builders is a general contractor based in Etna, working both sides of the canyon. We build the projects that fall between a handyman and a custom home.

  2. The slab.

    Concrete, and everything that has to go under it first.

  3. The frame.

    Walls, then trusses. This is the week it looks fast.

  4. Closed in.

    Sheathed and roofed before the weather gets a vote.

  5. Finished.

    Siding and roof matched to the house you already had.

Illustration. The photographs below are a real job.

Every inquiry

Answered in 48 hours

A real person, on the phone or by email. Not a form receipt.

Before you owe anything

Scope, price and dates

Line item, in writing. You can take it to another builder and compare.

Job size we are built for

$50k to $500k

Big enough to need a real GC. Small enough that the big shops will not call you back.

Timber entry portico framed in, rafters and ridge exposed before the roof deck went on

The joint you cannot see later is the one worth paying for.

Entry portico / framed in 14 days

How it works

Five steps. You know what happens in each one.

01

You send the basics

Photos, a rough scope, and when you want it done. Takes five minutes. No walkthrough required to get a first answer.

Same week
02

We walk the job

One visit to see what is actually there. Half the surprises in construction come from the parts nobody looked at, so we look.

Week 1
03

You get the number in writing

A line item scope, a fixed price or a clear allowance, and the start and finish dates. You have it on paper before you owe anything.

Week 2 to 3
04

We build to the schedule

Subs booked, materials ordered, and a weekly update whether or not there is news. You always know what happens next week.

Per the contract
05

We finish and hand it over

A walkthrough, a punch list with dates on it, and the warranty terms. The job is not done until the list is empty.

Final week

A schedule, photographed

First wall to house wrap. Twelve days, photographed.

The animation at the top of this page is a drawing. These are not. They are in order, and every date below is the date the photograph was taken. 15 May to 27 May 2026, one job.

Exterior walls standing on the new slab
15 MayWalls up
Wall sheathing on, gable framing started
16 MaySheathed
Roof trusses set and braced
16 MayTrusses set
Trusses complete across the full span
17 MaySpan complete

What it costs

A range you can plan around, before you call anyone.

These are planning numbers, not a price list. Every job gets quoted properly. But you should not have to book a sales call just to find out whether a project is in reach at all.

Bathroom remodel

Full gut, new fixtures, tile and finish work.

$45,000 to $90,0004 to 7 weeks
Kitchen remodel

Cabinets, counters, appliances, and the plumbing and electrical behind them.

$85,000 to $220,0008 to 14 weeks
Room addition

New square footage on an existing foundation or a new one.

$300 to $500 / sq ft12 to 24 weeks
Detached garage or shop

Slab, shell, doors and basic utilities.

$120,000 to $260,00010 to 18 weeks

Service area

We work both sides of the canyon.

We are based in Etna, which puts Star Valley and Jackson Hole about the same distance away. Most builders pick one. If you are outside this list, ask anyway. We would rather tell you no than leave you guessing.

  • Etna
  • Alpine
  • Thayne
  • Afton
  • Star Valley
  • Jackson
  • Wilson
  • Teton Village
  • Hoback
  • Lincoln County WY
  • Teton County WY

Next step

Tell us what you are trying to build.

Send the basics and you get a real answer back, not a voicemail. If it is not a fit we will say so and point you somewhere better.