Taking 3 new builds this quarter

Custom software for

Built around how you actually run — not template SaaS. Marketing intelligence, AI that evolves every other month, and flows that fit you.

4–6 wk build$10K + $1,500/moYou own everything

Marketing intelligence AI that evolves Built around you ROI per ad source Monthly AI upgrades Your branded portal Missed-call-text-back QuickBooks sync Done-for-you migration You own everything Marketing intelligence AI that evolves Built around you ROI per ad source Monthly AI upgrades Your branded portal Missed-call-text-back QuickBooks sync Done-for-you migration You own everything
What we do

Stop trying to fit your business into
someone else's software.

Most growing businesses end up running on a patchwork: one tool for customers, one for invoices, one for scheduling, one for email, one spreadsheet nobody trusts, and reports someone rebuilds by hand every week.

We build software made just for your business. We keep the tools you already love — QuickBooks, your email, your calendar — and make them work together. We only build what doesn't fit.

What you end up with is one system that finally feels like yours.

Why Hausstack

Built for you. Not the other way around.

Made just for you

No template. No generic platform. Your software is built around how your business actually works — not someone else's idea of it.

We keep what's already working

Using QuickBooks? Keep it. Love your email tool? Keep it. We make everything work together so the numbers flow automatically. We only rebuild what doesn't fit.

The dream system, finally built

You've been describing a better version of your software in your head for years. You say it. We build it. That's the whole job.

Your customers will notice

When your customers log in, they see something that actually looks like your business. Not a generic screen with someone else's brand. They'll treat your business differently because of it.

Your software gets better every month

When new AI models drop or we find a way to make something faster, your system gets the upgrade. Every other month, free. Your platform stays ahead while you stay focused on the business.

You don't handle any tech

We do the hard part. You don't need to learn anything new. You just run your business while we make the software fit it.

What we build

Four example systems.
Tailored to your industry.

A private K-12 school, an LA electrical contractor, a roofing company, and an HVAC shop. Each fully custom — here's what we can build for you.

Illustrative example builds. Real customer builds replace these as they go live.

Education Private K-12 School
1

Operations Dashboard

The principal opens one screen and sees everything: 342 students, 94% attendance, $513K tuition collected this month, 17 open admissions applications. Real-time. One login.

2

Smart Gradebook

Teachers enter grades, track attendance, and generate report cards — all from one screen. Weighted grading, custom categories, auto-sync to parent portal.

3

Admissions Pipeline

Every prospective student tracked from first inquiry to enrolled. Drag-and-drop pipeline, automated follow-ups, interview scheduling, enrollment conversion.

9 tools replaced
$18K+ saved / year
3 wks build time
View example build →
app.westbrookacademy.edu / dashboard
Main
Dashboard
Students
Classes
Attendance 3
Grades
Finance
Tuition 7
Admissions
Reports
Westbrook Academy / Dashboard / Overview
Good morning, Dr. Whitfield
Tuesday, March 3 · Spring Semester
LW
+ New student
Enrolled
342
↑ 12 this term
Attendance
94.2%
↑ 2.1% vs last wk
Tuition MTD
$513K
↑ 8% vs Feb
Open Apps
17
↓ 3 pending review
Enrollment — last 6 monthsEnrolled Target
app.westbrookacademy.edu / grades / math-7
Teaching
My Classes
Gradebook
Assignments
Attendance
Students
Roster
Messages 5
Westbrook Academy / Gradebook / Math 7 · Period 3
7th Grade Math · Period 3
24 students · Term average 86.4%
+ Assignment
Student
Quiz 4
Essay
Midterm
Grade
AMAbramson, Mia
92
88
95
A
BCChen, Benjamin
78
85
82
B
DKKlein, Daniel
95
94
98
A+
ERRodriguez, Elena
84
90
88
B+
JMMiller, Jacob
72
68
74
C-
SRRosenberg, Sarah
88
92
91
A
TNNguyen, Tyler
90
87
89
A-
app.westbrookacademy.edu / admissions
Admissions
Pipeline
Applications
Interviews
Enrolled
Tools
Forms
Email
Westbrook Academy / Admissions / Fall 2026 Pipeline
Fall 2026 Admissions
52 applicants · 18 enrolled · 35% conversion
+ Add applicant
Inquiry 12
Aaron Weiss
Grade 5 · via website
Lily Park
Grade 2 · referral
Noah Fischer
Grade 8 · ad
Application 14
Sophia Levy
Grade 4 · docs pending
Ethan Goldman
Grade 1 · complete
Mia Rosenberg
Grade 7 · complete
Interview 8
David Cohen
Scheduled Mar 7
Rachel Stern
Scheduled Mar 9
Enrolled 18
Jacob Miller
Deposit paid
Ava Freedman
Deposit paid
Ben Stein
Deposit paid
ElectricalLA-area electrical contractor
1

Dispatch board with lead source

Every job today — already tagged by where the lead came from. Yelp, Google LSA, door hangers, referrals — visible on every card. Drag to reassign techs.

2

AI panel inspection

Tech photographs the panel. AI flags double-tapped breakers, missing GFCIs, panel age, and surfaces a $4–8K upsell candidate before the tech leaves the driveway.

3

Marketing ROI by source

Google LSA returned 5.2×. Yelp returned 1.4×. Door-hanger run in Mar Vista booked $14K from $300 in flyers. Live revenue per source — no spreadsheet.

11 tools replaced
$24K+ saved / year
4 wks build time
View example build →
app.voltlineelectric.com / dispatch
6 techs active
2 en route
1 urgent
Operations
Dispatch 18
Schedule
Techs
Permits
Growth
Marketing ROI
Customers
Invoices
Tue, Mar 3 · 18 jobs
6 techs active · $11,400 revenue target
+ New job
Scheduled 7
1247 Cahuenga Blvd
200A panel · 9:00 · Google LSA
8842 Sunset Blvd
EV charger · 10:30 · Yelp
442 N Crescent Hts
Recessed lights · 11:30 · Referral
En Route 2
19850 Mulholland Dr
ETA 12 · 200A service · Google LSA
6128 Camden Ave
ETA 18 · GFCI replace · Yelp
On Site 3
8211 Pacific Coast Hwy
URGENT · No power · Referral
3722 Riverside Dr
Tankless circuit · Door hanger
Complete 6
412 N Doheny
Paid · $1,840 panel
2245 Beverly Glen
Paid · $620 outlets
app.voltlineelectric.com / job / 1247-cahuenga
Active job
Overview
AI inspection
Quote
Photos 4
Customer
Property history
Comms
1247 Cahuenga Blvd · Panel inspection
Square D QO · 200A · ~1989 · 28 slots
Send quote
Panel age
~36 yrs
End of life
AI flags
3
Code issues
Open slots
4
Room to add
Upsell est.
$6.4K
Whole-home upgrade
!
AI flagged for review
Location
Action
Double-tapped breaker (15A)
Slot 12 · Kitchen
Code
Missing GFCI on bathroom circuit
Slot 18 · Bath 2
Code
Exposed neutral wire near bus
Lower-left junction
Safety
Suggested upsell: whole-home surge protector
Main bus
$380
app.voltlineelectric.com / marketing
Growth
Marketing ROI
Lead sources
Door hangers
Reviews
Operations
Dispatch
Customers
March marketing · 4 sources
47 leads · 32 booked · $84,400 booked revenue
Export report
Total ROI
3.4×
↑ 0.6 vs Feb
Best source
5.2×
Google LSA
Cost / lead
$48
↓ $11
Booked rev
$84.4K
↑ 22%
Source
Spend
Leads
Booked
Revenue
ROI
GGoogle LSA
$1,200
18
14
$34,200
5.2×
YYelp Ads
$980
12
6
$10,800
1.4×
DDoor hangers · Mar Vista
$300
7
3
$14,000
4.8×
RCustomer referrals
$0
10
9
$25,400
RoofingLA insurance + retail roofer
1

Roof measurement from satellite

Type the address. AI returns square footage, pitch, valleys, ridges, and surface type in 30 seconds. No drone, no Part 107 license, no $25–$87 EagleView fee.

2

AI insurance supplement

Phone photos in. First-draft supplement out — flagged damage, materials list, cause attribution. Exports to Xactimate ESX or Symbility XML for the carrier.

3

Job pipeline by source

Every lead — door-knock, Yelp, Google LSA, referral — tagged automatically. Watch the storm-driven canvass campaign in Mar Vista turn into booked installs.

10 tools replaced
$26K+ saved / year
5 wks build time
View example build →
app.crestlineroof.com / measure
Sales
Measure roof
Quotes
Pipeline
Insurance
Supplements 7
Carrier docs
Operations
Schedule
Crews
4127 Carpenter Ave, Studio City
Measured from Google satellite + Solar API · 14s
Generate quote
Total area
3,420 sf
28 squares
Pitch
6:12
Walkable
Valleys
8
14 ridges · 2 hips
Surface
Asphalt
Composition shingle
Roof segment
Pitch
Area (sf)
Squares
Face
AFront gable (south)
6:12
1,180
10
S
BRear gable (north)
6:12
1,180
10
N
CWest dormer
4:12
540
4.5
W
DGarage hip
5:12
520
3.5
S
app.crestlineroof.com / supplement / 4127-carpenter
Insurance
Supplements
Drafts 3
Sent
Approved
Export
Xactimate ESX
Symbility XML
4127 Carpenter Ave · Wind damage supplement
Carrier: State Farm · Claim #SF-2026-0392841 · 23 photos
Export ESX →
Damage flagged
14 areas
3 squares
Materials est.
$8,420
+ labor
Drafted in
2m 18s
vs ~4 hrs
Status
Review
Ready to sign
!
AI flagged for review
Location
Material
Action
Lifted shingles, wind damage
South face, rows 4–7
Timberline HDZ
Replace
Creased shingles
West dormer, ridge
Timberline HDZ
Replace
Flashing separation
Chimney NW corner
Step flashing
Reseal
Underlayment exposed
Valley intersect, NE
Synthetic UL
Patch
app.crestlineroof.com / pipeline
Sales
Pipeline
Quotes
Marketing
Door hangers
Sources
Reviews
Pipeline · March
42 active leads · $487K open · sources auto-tagged
+ Add lead
Inquiry 14
2284 Beverly Glen
Re-roof · Referral
1647 Sawtelle Blvd
Storm damage · Door hanger · Mar Vista
8230 Laurel Cyn
Inspection · Google LSA
Quoted 11
4127 Carpenter Ave
$24K · supplement filed
730 N Beachwood
$18K · awaiting decision
Scheduled 6
3401 Coldwater Cyn
Mar 12–14 · 26 sq
11200 Riverside Dr
Mar 18–20 · 32 sq
Installing 3
2156 N Vermont
Day 2 of 3 · $34K
692 N Larchmont
Day 1 · $28K
HVACLA residential HVAC + service plans
1

Service dispatch + equipment record

Every call today, every condenser ever installed by you, every system age and warranty status — all in one place. Drag to reassign techs.

2

EPA Section 608 log on autopilot

Tech snaps a photo of the cylinder + system plate. AI drafts the compliant log entry. Tech taps to confirm with their 608 cert. Audit-ready, every time.

3

Maintenance plan dashboard

$84K in active service plans. AI drafts renewal outreach in your shop's voice when each system hits the right age — recurring revenue that runs itself.

11 tools replaced
$22K+ saved / year
4 wks build time
View example build →
app.polarishvac.com / dispatch
5 techs active
2 en route
1 no-cool
Today
Dispatch 14
Schedule
Techs
Compliance
EPA logs
Permits
Recurring
Service plans
Renewals
Tue, Mar 3 · 14 jobs
5 techs active · $9,800 revenue target
+ New job
Scheduled 6
3214 Coldwater Cyn
Spring tune-up · 9:00 · Plan
19422 Sherman Way
No cool · 10:30 · Carrier 2014
711 N Curson Ave
Thermostat · 11:30 · Trane 2019
En Route 2
8842 Cashio St
ETA 14 · Refrigerant top-off
2156 Hyperion
ETA 22 · Heat pump install
On Site 3
4427 Beverly Glen
URGENT · No cool · 87°F home
601 N Larchmont
Lennox 2009 · ductwork
Complete 3
2237 N Vermont
Paid · $480 tune-up
8112 Mulholland
Paid · $1,240 capacitor
app.polarishvac.com / epa-log / 2026-mar-03
Compliance
EPA 608 log 12
Cylinder ledger
Annual report
AIM Act
15 lb threshold
Leak inspections
Section 608 log · March
12 entries this month · 0 missing fields · audit-ready
Export annual
Entries MTD
12
All signed
R-410A used
14.2 lb
Recovered 6.8
R-454B used
8.6 lb
New systems
AIM scope
38 systems
15-lb threshold
Date
Job · Address
Refrig.
Lbs
Tech (608 cert)
Status
Mar 3
3214 Coldwater Cyn · Carrier 5T
R-454B
+2.4
M. Reyes · Type II #847221
Signed
Mar 3
19422 Sherman Way · Carrier 3T
R-410A
+1.6
D. Park · Universal #382947
Signed
Mar 3
4427 Beverly Glen · Lennox 4T
R-410A
−6.8
D. Park · Universal #382947
Recovered
Mar 2
8842 Cashio St · Trane 2.5T
R-410A
+0.8
M. Reyes · Type II #847221
Signed
Mar 2
2156 Hyperion · Bosch HP 4T
R-454B
+3.2
L. Chen · Type I #511038
Signed
app.polarishvac.com / service-plans
Recurring
Service plans 214
Renewals
Upgrade outreach
Auto-bill
Equipment
Install ledger
Warranty status
Service plans · March
214 active · $84,400/yr ARR · 92% retention
Draft renewal batch
Active plans
214
↑ 18 this qtr
ARR
$84.4K
↑ $7K
Due Mar–Apr
42 renewals
AI-drafted
Retention
92%
↑ 4pt YoY
Customer · address
System
Plan
Renews
Status
SKStein · 3214 Coldwater
Carrier 5T · 2019
$420/yr
Mar 14
Draft sent
RGGarcia · 711 N Curson
Trane 3T · 2017
$380/yr
Mar 22
Auto-pay
CLLin · 8112 Mulholland
Bosch HP · 2024
$540/yr
Apr 03
Drafted
DMMarquez · 601 N Larchmont
Lennox 4T · 2009
$480/yr
Apr 12
Replace flag
JWWei · 2156 Hyperion
Bosch HP · 2026
$540/yr
Apr 18
New install
How it works

Most builds launch in 3–6 weeks.

From first call to live system. We handle the hard part, keep scope clear, and launch in phases so your business keeps running.

1

We listen

You tell us how your business really works. The good, the messy, the things that frustrate you. What you wish your software did but doesn't. We take notes.

Week 1
2

We plan

We show you exactly what we're going to build. On paper, in plain English. You tell us what to change. We adjust until it's right.

Week 2
3

We build

You get a working version in your hands. You try it with real data. You tell us what's not quite right. We fix it.

Week 3
4

You go live

We move your data in. We train your team. We stay close for months after to make sure it all runs smoothly.

Week 4
Get your free audit →

30 minutes. No pitch. You leave with a plan either way.

Optional add-on

Need demand too?
Add marketing after the system is in place.

Once your operations can handle the work, we can help drive more of it: social, email, SEO, websites, ads, and campaign reporting that connect back to your platform.

Social Media

12-15 posts/month across 2-3 platforms. AI-generated, you approve.

$500/mo

Email Marketing

4 campaigns/month, automated sequences, list management.

$400/mo

SEO & Content

2 blog posts/month, keyword optimization, Google Business.

$500/mo

Website Build

Custom-designed site built to convert. Fast, mobile, fully yours.

$5K–$10K one-time

Website Management

Hosting, updates, performance, basic SEO.

$300/mo

Ad Campaigns

Google + Facebook ads. AI-optimized copy and targeting. We manage, you get leads.

$500/mo + ad spend

The full marketing package

Social, email, SEO, site management, ads, and an AI chatbot. One team. One bill. Save $400/month + chatbot included free.

$1,800/mo
Get started
Common questions

Everything you're probably wondering.

What if this goes over budget?

It won't. Fixed price, fixed timeline. If we're wrong, we eat the cost — not you.

What if you disappear?

The software is yours from day one. If we ever closed, you'd still have everything — the code, the data, full documentation. Standard tools any developer can pick up.

I don't really know what I want. How do I even write a list?

You don't need to. That's literally our job. The first week is us sitting with you and pulling what's already in your head into a document you'll actually recognize. Then you tell us what's wrong.

We're too small for custom software.

Between 10 and 100 people is the worst zone to be in — too complex for off-the-shelf tools, too small to hire a full tech team. That's who we built this for.

How can you do this so fast?

We use AI to handle the parts that used to take humans weeks. That's why custom software used to take 6 months and $150,000. We've moved the whole math to somewhere saner.

What happens to my existing data?

We move it in. Customer records, invoices, history — everything comes with you.

Free · 30 minutes · No pitch

Get your free audit.

We walk through your current software with you. We show you what you're paying for, where things overlap, and what one custom system could actually do for your business. You leave with a plan either way.

We'll be in touch within 24 hours to schedule. No one will call you unless you ask.