The estimator we built brought in about 150 leads in its first month.

Hours on every estimate, and change orders to explain again?

Justin Green Custom Homes’ buyers answer a few questions and get a cost range.

Growth: $947 to set up, then $147 a month

A day with the app we would build you

  1. A couple sent a new inquiry last night. Your AI teammate answered it and drafted a follow-up for your okay.
  2. On site, your foreman opens today’s job and schedule on their phone. The office sees the same job on the computer, synced live.
  3. The homeowner wants a bigger deck. Your AI teammate drafts the quote, you approve it, and it shows up in their portal.
  4. The next draw invoice is due Friday. The app sends the homeowner an invoice nudge.
  5. The homeowners open their portal and see their quotes, their invoices and where the job stands.

Field notes on paper, typed again at your desk.

In the app we build you, buyers get a starting number from your website, estimates start from your own costs, change orders go to the homeowner to sign before the work, and homeowners check progress without picking up the phone.

  • Software made by software people, not builders.
  • Hours to build one estimate, and nothing that starts from your plans.
  • Homeowners who keep changing things, and decisions that come a week or 2 after you needed them.
  • Paper notes in the field, typed up again when you’re finally back at your desk.
  • A price increase with 30 days’ warning, and years of data you can’t easily move.

Custom home builders. Real Joiner build

What we would build: estimates from your own costs, change orders signed first and a portal for your homeowners.

  • Jobs, crews and selections

    Your job board: every house’s schedule, subs, selections and next step, from the field and the office.

    • Each job’s schedule, subs and next step
    • Selections with due dates the homeowner sees
    • Daily photos and notes from the field
    • Up to 5 users with roles
  • Estimates, change orders, draws

    Your estimates and change orders: estimates from your own costs, change orders priced and signed first, and every job’s numbers in view.

    • Estimates built from your own costs and past jobs
    • Change orders priced and signed before the work
    • Invoices and draw requests the homeowner sees in the portal
    • Where every job stands against its budget
  • A website buyers can price from

    Your first answer to buyers: a starting number on your website, and a follow-up drafted for each one who asks, for your okay.

    • An estimator on your website that gives buyers a range, with the Quote and estimate tool add-on
    • A follow-up drafted for each buyer who asks, sent when you approve it
    • An AI teammate that answers new inquiries and drafts replies for your okay

Give buyers a number before the first meeting

Buyers ask for “a rough estimate of cost” before they contact a builder. One walked out of a builder’s meeting with no numbers, and never heard back.

That is the job of the estimator we built for Justin Green Custom Homes. Buyers answer a few questions about their build on the company’s website and get a cost range. It brought in about 150 leads in its first month.

Yours can start simple: ask for the size, the style and a few finishes, and give a range. It won’t replace your estimate, and it should say so. The buyers who call after using it already know the range. Answer every one of them the same day.

How to estimate a custom home without starting from zero

A price per square foot is “really only a rough guess,” as one builder put it. It’s fine for a first conversation and dangerous in a contract. The fix is to stop starting every estimate from a blank page.

Build your estimate from pieces you’ve priced before. Break a house into assemblies: the foundation, the framing package, a bathroom, a kitchen, a deck. Price each one from your last 3 jobs, then adjust for this house. Keep allowances for the things the homeowner hasn’t picked yet, and say so in writing. Add a contingency line you can explain.

Know your markup from your margin. A 20 percent markup on cost is about a 17 percent margin on the price: a cost of 100 marked up 20 percent sells for 120, and 20 is about 17 percent of 120. A builder who adds 20 percent to cost and calls it a 20 percent margin is making about 17, and on a custom home that gap is real money.

When the subs’ bids come back, drop them into the same assemblies, so the estimate updates instead of being rebuilt.

Write down what each estimate leaves out, such as the lot work, the permits or the appliances the homeowner buys on their own, so you and the homeowner read the same price.

How to manage change orders without the fights

One builder wrote that they had “gone nuts trying to explain to clients what their changes would cost.” Set one rule and hold it: no change gets built until a change order is signed.

Each change order says 3 things: what changes, what it costs, and what it does to the schedule. Let your foreman start it from the field, because they see the change first. Get the homeowner’s signature before the work, then show the running total every time it moves. Go over the job and its budget with the homeowner every 2 weeks.

A change order on 1 page, to copy:

  1. What changes, in plain words.
  2. What it adds to the price, or takes off.
  3. How many days it adds to the schedule.
  4. The homeowner’s signature and the date, before the work starts.

Get decisions on time

Late selections push your schedule. One builder said every decision came “a week or 2 AFTER I needed them.” Give every selection a due date tied to the build schedule: the tile is due 3 weeks before the tile setter. Show the homeowner the dates on day 1, remind them a week ahead and again 2 days ahead, and write down what a late pick costs in days.

How to organize a small building company

Give every house one place where everything about it lives: the plans, the schedule, the selections, the change orders, the photos and the invoices. Capture notes in the field, on the phone, instead of carrying them home in your head. Once a week, look at every job’s schedule and budget side by side, and call the homeowner before they call you.

Start a punch list for each house at the first walkthrough and add to it as you go, with a photo and the trade who owns each item. By the final walkthrough, you are checking items off a list you already have.

Keep the homeowner in the loop without the calls

One homeowner described messaging their builder and having “no idea if anyone saw it.” Send the same short update every week, on the same day: 3 or 4 photos, what got done, what happens next week, and any decision you need from them with its due date. Every 2 weeks, send the invoice with the budget next to it. One builder kept clients aware of costs this way.

Your company’s app, and your homeowners’ portal

The estimator is what we have built for a home builder so far. The app is what we’d build for yours: an app for your company and a portal for your homeowners. For you: every job’s schedule, subs, selections, change orders and numbers, from the field and the office. For your homeowners: their quotes, invoices, photos and what’s next. With the Quote and estimate tool add-on, an estimator on your website gives buyers a starting range. The app runs on your crew’s phones and your office computer.

Not ready to start? Have Otis audit your business, free.

Questions, answered

Have you built anything for home builders?

Yes, the estimator on Justin Green Custom Homes' website. Buyers answer a few questions about their build and get a cost range, and it brought in about 150 leads in its first month. The app we'd build you starts from your own costs and the way you build.

How does my crew start using it?

Tell us how you work, we build it in your words, and your crew opens it on their phones. Growth is $947 to set up and $147 a month, month to month. We email you the day the build starts, and the setup fee is refundable in full until then.

What happens to our jobs and files if we leave?

They leave with you: every job's selections, change orders and photos. You own your domain, your accounts, your website files and your data. Joiner owns the app and licenses it to you while your plan is active. You can ask for an export of your data while your plan is active and for 30 days after it ends.

Is there a contract?

No. Every plan is month to month for as long as your builds run, and renews monthly until you cancel. Cancel any time, and service runs to the end of the month you paid for.

We already use Buildertrend, or Excel. Why change?

If it fits how you build, keep it. If you've made your own tools around it, or it can't keep up with your day to day work, we build an app around how you already estimate and run a job.

Can it estimate from our own costs?

Yes. In the app we build you, each estimate starts from your cost sheet and your past jobs, in the order you price a house. With the Quote and estimate tool add-on, an estimator on your website gives buyers a starting range.

What do homeowners see?

With Growth, a portal with their quotes, invoices and job status. We would also build in the photos and selections you choose to share.

Does it do our accounting or taxes?

No. Your app would handle estimates, change orders, invoices and the numbers on each job.

The plan that fits

Growth adds the customer portal, so homeowners see their quotes, invoices and job status without calling, plus up to 5 users with roles for the office and your leads, and a new feature or automation built every month. The setup fee is refundable in full until the build starts, and we email you the day it starts.

  • Website build or refresh$447 setup + $27 a month on its own, or $397 setup + $27 a month with any plan
  • Quote and estimate tool$497 once

Renews monthly until you cancel. Cancel any time from the billing link in your receipt or by email to support@joinerlabs.com.

Every plan and price

Growth

Your app, your agents, a monthly build

For teams up to 5

Setup, once
$947
A month
$147

USD. Renews monthly until you cancel. Cancel any time from the billing link in your receipt or by email to support@joinerlabs.com.

Start with Growth

Everything in Pro, plus

  • Up to 5 users, with roles
  • Up to 3 AI agents
  • A customer portal: your customers see their quotes, invoices and job status
  • A new feature or automation built every month
  • A 30-minute strategy call and a one-page report every month
  • Connections to the tools you already use

Tell us how you work. We’ll show you what we’d build.

We reply within 1 business day.

We reply within 1 business day with what we would build and which plan fits. Nothing to pay until you say yes.

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