Smarter Invoicing & Job Costing with Arez AI
Arez uses AI to turn rough job descriptions into priced quotes in seconds, so your team can respond faster and win more work. Every hour, parts and call-outs are tracked against the job, making it easy to spot price creep on invoices and protect your margins across HVAC, electrical, plumbing, gas, heating, and grounds maintenance.
See true profit on every job, site and contract
With Arez, job costing isn’t a separate spreadsheet – it’s built into how you run field work. Every visit, call-out and variation carries its own costs for labour, parts and subcontractors, so you can see the real margin on each job and contract. Estimated vs. actual costs are visible as the work progresses, rather than weeks later when accounts close the month. For field service businesses delivering PPMs and reactive jobs, that means you can spot under-priced work, problem sites or demanding customers early and adjust pricing, scope or resourcing before they quietly erode profit.
Quote and invoice jobs in under 60 seconds with Arez AI
Arez uses AI to read the job description and location, then suggests realistic price ranges you can quote in seconds. Instead of staring at a blank quote template, your team can go from a rough description (“replace failed boiler pump in small commercial unit”) to a populated quote and outbound email through the Arez portal in under a minute. Labour, travel and materials can all be pre-filled based on typical jobs in HVAC, electrical, plumbing, gas, heating and grounds maintenance, ready for you to tweak. Faster quoting means you respond first, look more professional and convert more work without burning time in spreadsheets.
Less admin by connecting field, office and accounts (Xero, Sage and more)
Arez sits between your field teams and your finance systems, so data only needs to be entered once. Jobs flow from scheduling through completion to invoice in one place, with approved invoices pushed to Xero, Sage, and other leading accounting platforms. There’s no double-keying of line items and no chasing missing job sheets, because everything needed for invoicing and job costing already lives in Arez. Operations, finance and contract managers are all looking at the same numbers, which reduces admin, cuts errors and keeps your ledger clean while work on the ground keeps moving.
Real-time control of labour, parts and subcontractors
Engineers and subcontractors log time and materials directly in Arez through the mobile app, so nothing gets lost between the van and the office. Standard, overtime and call-out rates are captured accurately, along with travel, small works and parts taken from the van or store. For HVAC, electrical, plumbing, gas and grounds maintenance teams that depend on a mix of direct labour and specialist subcontractors, this gives you a single, reliable picture of who did what, where and at what cost. When it’s time to invoice, you’re not guessing – you’re billing from real activity captured on site.
Turn job descriptions into priced quotes in seconds and send accurate, margin-protecting invoices from the same system. Arez gives HVAC, electrical, plumbing, gas, heating, and grounds maintenance contractors real-time control of labour, parts, and costs, with seamless export to Xero, Sage, and other leading accounting platforms.
Frequently Asked Questions About Invoicing & Job Costing for FM & Maintenance Contractors
Explore Commonly Questions and Expert Answers About Arez Workforce Management
Invoicing and job costing software helps HVAC, electrical, plumbing, gas, heating, and grounds maintenance contractors manage the full job lifecycle in one place – from AI-powered quoting to job completion, invoices, and payments. Arez brings together estimated, quoted and actual costs for labour, travel, materials and subcontractors, then turns that data into professional online invoices. This gives you clear visibility of project profitability while cutting back-office admin.
With Arez AI, you can turn a rough job description and location into a priced quote in seconds, then convert accepted quotes into online invoices with a couple of clicks. You can bill job-by-job, in batches, or consolidate multiple jobs into a single monthly invoice, using your own templates and branding. Automated billing rules for planned maintenance contracts and frequent call-outs reduce delays and errors, helping field service contractors get paid faster and improve cash flow.
AI-backed job costing in Arez pulls all costs for a job or project into one view, including engineer hours, overtime, travel, parts, tools, overheads and subcontractor invoices. By comparing planned or quoted costs to actual spend and invoices raised, you can see whether each job, site or contract is truly profitable. Real-time dashboards make it easy to spot cost overruns and price creep early, adjust resources and pricing, and protect margins across your portfolio of service contracts.
Arez sits between your field service operation and your finance team, syncing approved invoices and job costs directly into Xero, Sage and other leading accounting systems. You keep one clean set of financial data while engineers, schedulers and contract managers work in a field service management platform designed for them. This seamless accounts integration reduces manual re-keying, cuts errors and lets you handle project accounting, payments and financial reporting in one connected workflow.
Yes. Arez connects field engineers and office teams through a mobile app, so time, expenses and materials can be captured as the work happens. Location-based job tracking, timesheets and parts usage feed directly into each job record, giving you accurate labour and materials costs without duplicate data entry. This lets you manage project budgets with precision, track job progress for each site and create online invoices as soon as work is complete.
Arez provides reporting by job, customer, contract, trade and region, so you can see how HVAC, electrical, plumbing, gas, heating and grounds maintenance work is really performing. Work-in-progress, contract performance and renewal reports compare job costs to turnover and highlight where margins are being squeezed. Exportable profitability dashboards help you analyse trends, refine your pricing, renegotiate poor-performing contracts and demonstrate value to clients, all from one central system.
Arez AI reads the job description and location, then suggests sensible labour, travel and materials costs based on similar work. Your team can go from a rough note (“replace failed pump in small plant room”) to a fully priced quote in seconds, ready to send from the portal. That means you respond faster than competitors and keep your quoting process consistent across HVAC, electrical, plumbing, gas, heating and grounds maintenance jobs.
Yes. Because Arez AI uses the same cost logic for quotes and invoices, it’s easy to spot when actual time, parts or call-outs are drifting away from what was priced. You see where price creep is happening across sites, contracts and engineers, and can tighten labour rates, travel rules or materials mark-up before margins disappear. Every invoice is backed by itemised job data, so you can defend your pricing with a clear audit trail.
Arez AI is built for field service contractors working across different regions, including the UK, US, Saudi Arabia and Australia. You can adjust labour rates, currencies, taxes and travel rules to match local markets, while AI accelerates quoting and keeps pricing consistent. This lets multi-country FM and service businesses standardise how they cost and invoice jobs, without losing the flexibility to meet local client expectations.
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