Construction & trades
HVAC, plumbing, electrical and remodeling: calls, estimates and follow-ups handled
For remodelers, general contractors, specialty subs, and HVAC, plumbing, electrical
What do you want fixed first?
Add everything that applies. Each fix goes on your plan with how long it takes.
Add what you want fixed
Every fix shows how long it takes, and your plan shows how to start.
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A person at LOJIK checks your plan within one business day and sends a price set for your business, with ways to pay.
The detail
Built for construction & trades
For home remodelers, small general contractors, specialty subcontractors, and HVAC, plumbing, and electrical shops. LOJIK finds where office hours go: change orders, estimates, after-hours leads, and subcontractor paperwork. Then we build the fixes. We work with the field, project, and accounting tools you already pay for. When buying software is the better answer, we say so.
What each fix includes
Change orders approved and billed
The homeowner asks for an extra outlet and different tile, and the lead says yes on the spot. The only record is a text thread. By invoice time, nobody is sure what price was agreed. The extra work is argued over or never billed.
- Write down how a change is priced and who can approve it, in the field and in the office
- A change sent from the site by text, photo, or form becomes a draft change order in your usual tool
- The customer approves in writing before the work starts, and a person in the office checks the price
- Approved changes go on the next invoice, and unapproved ones show on a short list every morning
Signed estimates become scheduled jobs
The estimate lives in a spreadsheet or estimating tool, the deposit request goes out from accounting, and the crew calendar is somewhere else. A signed job waits while someone checks the deposit cleared and retypes the scope for the crew.
- Write down the steps from sent estimate to a job on the calendar, and who does each one today
- Follow up on unanswered estimates, with wording and timing you approve
- When an estimate is signed, request the deposit and create a draft job with the scope attached
- A person confirms the deposit and the crew before the job is scheduled
Night and weekend leads answered
A no-heat call comes in at night, and a remodel inquiry sits in the website form. A message from a lead site waits in someone's personal inbox. By morning, the customer may have called the next company.
- List where leads arrive today, such as phone, website form, lead sites, and texts, and who answers each after hours
- Send a reply in wording you approved, and put the lead into the tool you already schedule from
- Send urgent requests to the on-call person by your own rules, and put the rest on a morning list
Jobs entered once, books stay matched
Jobs and hours live in the field app, and bills and purchase orders in the project tool or email. Invoices and payments sit in your accounting software. Someone retypes them between tools every week. The numbers drift apart until someone matches them by hand.
- Write down where a job's details go today: which tools, which details, and who retypes them
- Use the connections your software already offers. Then build the links they don't cover, with a readable record of every change.
- A person still approves any change to invoices, bills, or payments
- Hand over the instructions, logins, and alerts, so you own the connection
Subcontractor paperwork without the chasing
Before a sub starts, the office needs a current insurance certificate and a signed tax form. Before a payment goes out, it needs whatever signed documents your contract or lender asks for. Each request goes by email, and answers land in different inboxes. An expired certificate turns up only when someone happens to open the file.
- Write down your paperwork checklist for each sub and each payment, and who signs off
- Set it up so requests and reminders go out in wording you approved, and documents are filed with the sub and the job
- Flag documents about to expire and payments still waiting on paperwork, for a person to review
- If your project software already tracks certificates or lien waivers, turn that on first. Connect only the subs or steps it doesn't cover.
What each job actually made
The estimate is in one tool and labor hours in the time app. Materials are on supplier invoices and card statements, and sub bills in QuickBooks. Knowing which jobs, crews, or job types make money takes an export, a spreadsheet, and an evening. So the question mostly goes unanswered.
- Agree on the few numbers you decide with, such as estimated against actual labor, materials, and subs per job, and their sources
- Pull them together from the tools that already hold them
- Show owners and project managers only the numbers each should see
Buy field software, or build?
You have a whiteboard, group texts, and spreadsheets that still mostly work. Your team keeps watching demos of field or construction software. The right answer is somewhere in between, and from these answers alone, we can't honestly name it. That's a finding, not a failure.
- A guided walk through how a job really moves today, from first call or estimate to paid invoice
- A first written plan: what field or construction software would solve, what it wouldn't, and what LOJIK would build either way
- A fixed price for the first fix, or honest advice to buy an existing tool instead
How your tools fit together
Change orders captured on site
A change agreed on site becomes a draft change order, gets approved in writing, and goes onto the invoice. Construction software already does this. Buildertrend describes digital client approvals, invoicing owners straight from change orders, and updating the budget with approved changes. JobTread describes change orders created in the office or the field and approved digitally (vendor site, 2026). If your projects run there, turn those features on first. LOJIK builds how changes agreed by text or in person reach that tool. We also build the path from change to invoice where jobs and invoices live in separate tools.
- Pricing rules and approval limits written down with you
- Changes sent from the site by text, photo, or form, matched to the job
- Written customer approval and an office price check
- A daily list of changes not yet approved or billed
Estimate to scheduled job
Unanswered estimates get follow-ups in your wording. Signed estimates become a deposit request and a draft job, and a person confirms before the crew is booked. Field software covers much of this on its own. Jobber's plans list online booking, automatic quote and invoice follow-ups, and automatic payment collection. JobTread's customer website collects e-signatures and online payments (vendor site, 2026). This fits businesses whose estimate, payment, and calendar sit in different tools.
- The steps from sent estimate to scheduled job, written down
- Estimate follow-ups, in the wording and timing you approved
- Deposit request and draft job created when the estimate is signed
- A person checks before the job is scheduled
After-hours leads captured
Leads from the phone, website, lead sites, and texts get a reply in your wording. They're logged in the tool you schedule from and sent on by your on-call rules. Many answering tools already exist. Housecall Pro describes CSR AI answering calls and chats and booking jobs around the clock. Jobber sells a Receptionist add-on that can answer questions, take requests, and book jobs. ServiceTitan describes an AI Virtual Agent that books jobs and hands off to a live person (vendor site, 2026). Start with the one your software offers. LOJIK builds this for the ways leads arrive that those tools can't reach.
- A list of where leads arrive and who answers after hours
- A reply in wording you approved
- Lead saved in the tool you schedule from
- Urgent calls sent on by your on-call rules, and a morning list
How field and books connect
Updates move, with a record of each one, between the software that holds your jobs and your other tools: accounting, project tools, and payroll. First, check what already connects. JobTread describes a QuickBooks Online link covering invoices, bills, payments, and time entries. Housecall Pro says invoices, customers, line items, and payments go into QuickBooks Online and Desktop. ServiceTitan lists QuickBooks Online and Desktop links, plus a general spreadsheet-file (CSV) link. Jobber's Connect plan lists a QuickBooks Online link, and Buildertrend lists a QuickBooks link (vendor site, 2026). LOJIK builds the connections you can't buy ready-made. A person approves any change to invoices, bills, or payments.
- A link to your main job software: a built-in connection, or exports where that's all there is
- Automatic updates; if one fails, it's retried and flagged
- A record of every change you can read
- A person approves changes to invoices, bills, and payments
Subcontractor paperwork requests
Your sub and payment checklist, run for you. Requests and reminders go out in your wording, documents are filed with the sub and the job, and expiring certificates are flagged. Check your software first. Buildertrend's sub website lets subs upload insurance and certification documents, and shows lien waivers waiting for sign-off. JobTread describes tracking insurance certificates and licenses for suppliers and subs (vendor site, 2026). Procore Pay's documentation covers lien waivers on sub invoices and insurance status on commitments. That's for contractors already on Procore Pay, which Procore lists as available in select US markets (vendor documentation, 2026). LOJIK builds the reminders where subs aren't on those tools. Or we link the paperwork to the software you pay from. Clearing a sub or a payment stays with you.
- A checklist for each sub and each payment, written down with you
- Requests and reminders, in wording you approved
- Documents filed with the sub and the job
- Flags for expiring certificates, and a record of every sign-off
Job profit kept up to date
The few numbers you decide with, pulled from the tools that already hold estimates, time, materials, and sub bills. Each person sees only their part. Job software includes job costing on its own data. Housecall Pro, JobTread, and Buildertrend each describe it, and Jobber lists it from its Grow plan (vendor site, 2026). This is for costs that come from more than one tool.
- Agreed rules for estimated and actual cost per job
- Regular updates from each tool
- Each person sees only their numbers
- A plain page owners can read without an export
Questions
Asked and answered.
We already pay for Jobber, Housecall Pro, or Buildertrend. What's left to build?
Often less than you'd think, and sometimes nothing. Between them, these tools describe quote follow-ups, change orders, job costing, AI call answering, and QuickBooks links (vendor site, 2026). Turn those on first. What's usually left are the gaps between tools. That means changes agreed by text, subs who aren't on your software, and leads it can't read. It also means numbers that come from several tools. Your plan names which, if any, apply.
Do you handle lien rights, licensing, or insurance requirements?
No. We don't give legal or insurance advice, and we don't decide which subs are cleared to work or which payments go out. Those stay with you and the attorney, agent, or accountant you already use. What we can do is gather and organize the paperwork your own rules call for, and show what's missing.
Will it work with QuickBooks?
It depends on your QuickBooks version and what's already connected. JobTread, Housecall Pro, ServiceTitan, Jobber, and Buildertrend each list a QuickBooks link (vendor site, 2026). We use those where they exist and cover only what they don't. A person still approves any change to invoices, bills, or payments.
Can the after-hours replies promise prices or appointment times?
Only what you approve. The wording, hours, and on-call rules are yours, and it doesn't quote prices or troubleshoot equipment. It replies to the request, logs it where you schedule from, and sends urgent ones to the person on call.
Who owns what you build?
When we hand it over, your team can receive the code, logins, instructions, and the job of running it. If you want LOJIK to run it for you, that support is agreed separately before launch.
Next step
Not sure which fix comes first?
Answer a few questions and see your plan before you share contact details.