30-min call with RobBook a proof-of-concept call
Electrical, mechanical and specialty trades

// For specialty contractors

AI for construction companies starts with the invoices.

For electrical, mechanical, concrete and other specialty subcontractors, the first job to test is supplier and subcontractor invoices coded to job and cost code. It runs as a free AI proof of concept on 20 to 30 invoices your team already posted, and it never logs in to your accounting system.

Book a proof-of-concept call30 minutes with Rob
Contractor proof of conceptAgreed before day one
First job
Invoices coded to job and cost code
You send
20 to 30 posted invoices, after an NDA
We touch
None of your systems
Reviewer
Your project accountant or AP lead, named by the owner
Left out
Certified payroll
Price
A range before day one

// Why invoices first

Every posted invoice already has an answer

A specialty contractor's AP desk sees the same kinds of invoice every week: supply-house invoices against job POs, ready-mix tickets, equipment rental, and monthly billings from your own sub-tier subs. A project accountant codes each one to a job, a cost code and a cost type, often while chasing lien waivers from the same vendors. Twenty to thirty of those invoices, with the coding your team already posted, make a complete test with an answer on file for every line.

Pay applications look like the bigger prize, but they make a poor first test. Each job produces one a month, so gathering 20 to 30 means reaching back across several jobs and many months. Invoices pile up in a week. Get the coding right first, and pay apps and job-cost reports later build on data that is already coded the same way.

The test doesn't depend on which system holds your books. Sage, Foundation or another construction package, with or without Procore: it needs copies of the invoices and an export of your job and cost code lists. No login, no integration, and no change to how your team works while it runs.

There is also a reason this matters now. Specialty contracting is being bought and combined: EC&M reported in March 2026 that most electrical contractor acquisitions since 2020 have been buyouts, led by financial buyers building platform companies. When shops are combined, each one arrives with its own cost code list and its own habits, and invoice coding is where those differences show up first.

// By trade

The same test, written for your trade

Its own documents
Its own first jobs
TRADE PAGE

Mechanical contractors

First jobsService agreement billing · Closeout documents · Equipment quotes, leveled · Repair quotes from PM findings
Read the trade page
TRADE PAGE

Electrical contractors

First jobsSubmittals · Change order pricing · Material buyout · Closeout manuals
Read the trade page
TRADE PAGE

Commercial roofing contractors

First jobsRepair proposals · NDL warranties · Reroof bids · Roof asset reports
Read the trade page
TRADE PAGE

Fire protection contractors

First jobsDeficiency quotes · Inspection report review · Long-interval test calendars · Impairment paperwork
Read the trade page
TRADE PAGE

Security integrators

First jobsLow voltage estimating · RMR contracts · Addenda checks · Acquired alarm accounts
Read the trade page
TRADE PAGE

Plumbing contractors

First jobsBackflow test reports · Medical gas testing records
Read the trade page
TRADE PAGE

Elevator contractors

First jobsViolation repair proposals · Maintenance control program records
Read the trade page
TRADE PAGE

Sitework contractors

First jobsHaul ticket reconciliation · Unit price quantity sheets
Read the trade page
TRADE PAGE

Commercial glazing contractors

First jobsGlazing bid scopes · Glass order checks
Read the trade page
TRADE PAGE

Commercial flooring contractors

First jobsFinish schedule takeoffs · Slab moisture test reports
Read the trade page
TRADE PAGE

Drywall and acoustical contractors

First jobsPartition schedule takeoffs · Fire-rated assembly submittals
Read the trade page
TRADE PAGE

Commercial demolition contractors

First jobsDemolition notification packages · Disposal and recycling reports
Read the trade page
TRADE PAGE

Underground utility contractors

First jobsPipe test report packages · As-built redline records
Read the trade page
TRADE PAGE

Commercial painting contractors

First jobsFinish schedule bid sheets · Daily coating inspection logs
Read the trade page
TRADE PAGE

Firestopping contractors

First jobsPenetration system schedules · Firestop inspection records
Read the trade page
TRADE PAGE

Mechanical insulation contractors

First jobsInsulation system schedules · Plant insulation survey reports
Read the trade page
TRADE PAGE

Structural steel erectors

First jobsSite-specific erection plans · Bolting and welding records
Read the trade page
TRADE PAGE

Sheet metal contractors

First jobsDuct takeoffs · Duct leakage test reports
Read the trade page
TRADE PAGE

Commercial masonry contractors

First jobsWall type takeoffs · Mortar, grout and inspection records
Read the trade page
TRADE PAGE

Commercial refrigeration contractors

First jobsRefrigerant leak records · Case and rack repair quotes
Read the trade page
TRADE PAGE

Crane and rigging companies

First jobsCrane rental quote requests · Inspection record files
Read the trade page
TRADE PAGE

Asphalt paving contractors

First jobsPaving bid schedules · Density and mix test records
Read the trade page
TRADE PAGE

Commercial concrete contractors

First jobsStructural note takeoffs · Pour and cylinder records
Read the trade page
TRADE PAGE

Commercial restoration contractors

First jobsLoss estimate supplements · Drying log closeout packages
Read the trade page
TRADE PAGE

Commercial scaffolding companies

First jobsScaffold bid scope sheets · Scaffold inspection records
Read the trade page
TRADE PAGE

Electrical testing companies

First jobsAcceptance test report packages · Arc flash field data sheets
Read the trade page
TRADE PAGE

Fire alarm contractors

First jobsPermit submittal packages · Inspection deficiency proposals
Read the trade page
TRADE PAGE

Traffic control companies

First jobsPermit plan packets · Device and flagger billing logs
Read the trade page
TRADE PAGE

Wireless tower contractors

First jobsSite closeout packages · Structural modification scopes
Read the trade page
TRADE PAGE

Asbestos abatement contractors

First jobsDemolition and renovation notifications · Project closeout packages
Read the trade page

// How it runs

Three steps, one job at a time

  1. Step 01

    The proof of concept

    You send copies of 20 to 30 invoices your team already posted, after the NDA is signed. Nothing connects to your accounting system, Procore or your bank. If invoices can't leave the office, we build look-alikes with you.

  2. Step 02

    Your reviewer decides

    The owner names the reviewer and the success criteria are written down before day one, along with a price range for the live job. Your reviewer then compares our coding with what your team posted, invoice by invoice.

  3. Step 03

    Live for about 30 days, after a yes

    About 30 days on new invoices. A person approves each coded entry before it posts. Then the next job, such as lien waivers, priced on its own.

Priced per job. You get a range before the proof of concept and a fixed price before you sign.

The range comes on the call, once we know roughly how many invoices you post a month and how many jobs are open at once.

// Questions

Contractor questions

Do you work with Sage, Foundation or Procore?
The proof of concept doesn't connect to any of them. It runs on copies of invoices and an export of your job and cost code lists. Your system matters only for the live run after a yes, when coded entries go in for a person to approve.
Do you handle certified payroll?
No. Certified payroll carries personal data on every worker on a prevailing-wage job, including an identifying number and pay. It stays with your payroll team and out of every job on this page.
We're a general contractor, not a sub. Does this fit?
The first job does, since GCs code supplier and sub invoices to job and cost code too. These pages are written for specialty contractors who bill a GC, so bring your own mix of invoices to the call and we will say plainly what fits.
Can we start with lien waivers or pay apps instead?
Yes. Lien waivers test well on two or three past pay cycles. Pay apps need more history, because each job makes one a month. Tell us on the call which job you would hand off first.
Who checks the results?
A reviewer the owner names before it starts: the project accountant, AP lead or controller who knows this work best. They compare our drafts with what your team actually did on the same invoices, and their call decides it.
Rob Eason

Rob Eason, founder

// Book a proof-of-concept call

Start with the invoices.

30 minutes with Rob. We ask three things: your company and role, the job you want tested, and roughly how many invoices you post in a month. Please don't send documents until the NDA is signed.

  • Co-owned a 60-employee financial services firm and sold his share to his partner.
  • Ran GOSO Technologies, a Boston solar company rated 5/5 across 24 Google reviews.
  • 5/5 across 83 reviews in HighLevel's Certified Admin Directory.
  • 4.3/5 from 6 Google reviews of Massmarket AI.
  • Every directory and Google review, critical ones included, is shown word for word at massmarket.ai/reviews.
  • Takes every proof-of-concept call himself.