MEPSub Blog

Practical guides on submittals, takeoffs, estimating and software — for MEP, HVAC and electrical contractors.

Billing

AIA G702 and G703, explained for MEP subcontractors

What the AIA G702 Application for Payment and the G703 Continuation Sheet are, what every column means, how retainage and change orders flow through them, and the mistakes that get a pay app sent back.

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Submittals

The MEP submittal checklist: 20 checks before you hit send

A practical submittal checklist for mechanical, plumbing and controls contractors: what to confirm in the spec, on every cut sheet, in the package and in the log before a submittal goes to the GC.

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Estimating

Scope buyout: deciding in-house or sub, scope by scope

How mechanical contractors decide which scopes to self-perform and which to sub out, how to carry sub numbers in the bid, and how to buy the job out after you win it without losing the margin.

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NYC

Finding NYC mechanical work before the bid: a guide to DOB data

How HVAC, plumbing, sprinkler and boiler contractors can use New York City open data — DOB NOW filings and permits, violations, boiler and cooling tower records, certificates of occupancy, HPD complaints and Local Law 97 — to find work before it goes out to bid.

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Submittals

What is a submittal in construction? (with a free template)

What a submittal is, what goes in the package, where the process breaks — plus a free submittal template, log and costbook.

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Buyer's guide

The best software for MEP & HVAC contractors (2026)

Field-service apps vs construction platforms vs all-in-one MEP tools — how to choose, with an honest look at the options.

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