For HVAC Contractors

Stop losing Manual J jobs to your 1999 proposal.

A clipboard estimate at the site, an AHRI cert in a follow-up email, a warranty PDF you have to dig up — that's why you're losing, not your price. Glewit ships your Manual J proposal as one branded document in minutes, with load calc and warranty terms built in. Free trial. HVAC catalog included.

Start Free — HVAC Catalog Included See an example HVAC proposal →

The proposal that should take 30 minutes takes three days.

An HVAC proposal has too many moving parts to do by hand. You're sizing off a load calc and then re-typing the tonnage, the SEER2, and the warranty terms into a Word template for the fourth time this week. You're explaining — again — why your number isn't the lowball the guy down the road quoted off the old system's nameplate. You're tracking an 8-to-12-week equipment lead time against a customer who wants it in before the first cold snap. By the time the proposal goes out, they've signed with whoever quoted fastest.

Proposal → Contract → Handover

Project data flows forward — enter it once, render it three ways. Every field on the proposal carries through to the contract and the handover packet.

01 · Proposal

Your heat-pump, air-handler, and control line items priced from your catalog, with brand and model on each. Efficiency-tier variants for the same Manual J load.

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02 · Contract

Selected tier pulled forward with correct math. Payment milestones, the equipment-order lead-time acknowledgment, and the three-way warranty in writing.

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03 · Handover

Commissioning report, equipment schedule with serials, and the first-year care schedule — the numbers that prove the system performs.

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Your HVAC catalog, ready to ship.

Glewit ships a heating and cooling catalog seeded with the line items, prices, and scope language you actually quote. Edit it in Settings — or skip the seed and author your own.

Heat Pumps & Air Conditioners

Central variable-speed heat pumps and AC condensers, sized by Manual J
Ductless minisplits — single- and multi-zone, hyper-heat cold-climate
Matched air handlers and evaporator coils, communicating with the outdoor unit
Ground-source (geothermal) heat pumps with loop-field coordination

Air Distribution

New ductwork for new construction and whole-house retrofits
Retrofit duct rework — undersized trunk lines, leakage sealing
Supply registers and return upgrades sized to measured airflow
Static-pressure-driven duct sizing, not rule of thumb

Indoor Air Quality

HRV / ERV heat- and energy-recovery ventilation
Whole-house dehumidification tied to central distribution
High-MERV (MERV 13-16) media filter cabinets
IAQ baseline measured at consultation, not assumed

Smart Home & Controls

Smart thermostats and manufacturer-native system controls
Zoning controls for multi-area homes
C-wire addition and equipment-binding configuration
Communicating controls for full variable-speed feature exposure

Carrier, ecobee, Aprilaire — embedded automatically.

Glewit embeds the actual manufacturer spec sheets in your proposal. Customers see the Carrier Infinity heat-pump data, the ecobee control specs, and the Aprilaire IAQ sheets exactly as the manufacturers publish them — not screenshots pasted into Word. Update the catalog once; every future proposal pulls the current sheet.

Carrier

ecobee

Aprilaire

Simple pricing

If Glewit helps you close one extra job this year, it pays for itself.Sending proposals same-day instead of three days later changes how often you win. A single extra closed project at $75K covers Glewit for three years. The math is yours to do.

Free

$0/month

Try the workflow. See if it fits.

Generate proposals, contracts, and handover docs
Full service catalog with toggle-off builder
Print / PDF export
Logo, brand colors, and catalog saved to your account
Up to 3 active projects (advance to complete to free a slot)
Track projects from quote to handover
Customer portal with shareable links

Get Started Free

Most teams choose this

Pro

$199/month

Your proposal workflow, done in 30 minutes instead of 4 hours.

Everything in Free, plus:
Remove Glewit branding from your documents
Unlimited active projects
Draft proposals from a project description — pulls line items, prices, and scope from your catalog
Vendor brochures embedded in proposals — branded, page-perfect, embedded from your catalog
AI brochure-grounded drafting — coming soon (early Pro customers get first access)
One-click contracts and handover packets that pull data from the accepted proposal
Get notified when a client opens, signs, or pays — no refreshing your inbox to check status
Email support

Get Started Pro

Enterprise

$499/month

Built for established operators managing multiple crews and high project volume.

Everything in Pro, plus:
Optional auto-send for proposals that meet your quality rules — proposals go out the same day even when you’re on jobsites
1-hour onboarding call to set up your account
Custom document design tailored to your brand
Quarterly review call to talk through what's working
Same-day priority support

BONUS: Free consultation with Anvil Digital Group for custom website or app development

Book a 15-min call or email us →

Questions heating and cooling contractors ask

Do you actually run a Manual J, or just match the tonnage of the system you're pulling out?

Every install starts with a room-by-room Manual J load calculation — and you receive the calc as part of your proposal, not just the tonnage number. Sizing off the old system's nameplate (what a fast lowball does) carries forward whatever was wrong the first time: an oversized unit that short-cycles and never pulls humidity, or an undersized one that can't keep up on the coldest days. The contract makes the calc binding — Section 14 (Entire Agreement) names the Manual J as part of the agreement, and Section 1 (Agreement) puts the load calc in the scope you're paying for.

Why is the equipment quoted at an 8-to-12-week lead time, and what does that do to my install date?

Premium variable-speed and cold-climate equipment is custom-ordered from the manufacturer, and those lines commonly run 6 to 12 weeks. We order the day the contract is signed, not later — Section 13 (Equipment Order and Lead Time Acknowledgment) sets that out, and Section 5 (Project Timeline) flags equipment lead time as the schedule driver. The tradeoff is disclosed up front: once equipment is ordered, a cancellation or brand swap can carry a manufacturer restocking fee (15-25%), in Section 13 and the equipment-order-cancellation exclusion. We schedule the install around the confirmed lead time, so the date you're given is real rather than optimistic.

You keep mentioning a 'commissioning report' — what's in it, and why does it matter to me?

The commissioning report is the measured proof the system performs: static pressure at the air handler, airflow per register, and refrigerant charge (superheat and subcool) verified against the Manual J target. It's the deliverable that closes the job — Section 1 (Agreement) includes commissioning in the scope, and the workmanship component of Section 9 (Warranties) ties that coverage to the refrigerant charge verified at commissioning. Keep it: any future service starts from these numbers, so a tech can see at a glance whether something has drifted instead of guessing.

If something fails in year three, who covers it — Carrier or you?

Both — Section 9 (Warranties) splits it three ways. (a) Manufacturer parts: the equipment carries the manufacturer's parts warranty (typically up to 10 years on compressors), which we register on your behalf at commissioning. (b) Contractor labor: we warrant the labor for a multi-year term beyond the standard one year, so a manufacturer-covered part failure inside that window is repaired at no labor cost to you. (c) Workmanship: one year on the install itself — brazing, charge, mounting, connections. A year-three compressor is parts (the manufacturer) plus labor (us, if it's inside the labor-warranty term written into your contract).

Who pulls the permits, and is it true there are two separate inspections?

We pull the permits — the mechanical permit, plus electrical, gas, or plumbing where the scope touches them — per Section 6 (Permits and Inspections). Permit fees are billed at cost, not marked up (the permit-fees exclusion). And yes: HVAC has two distinct inspection gates, both in Section 6 — a rough-in inspection after the refrigerant and electrical rough-in and before finish work, and a final inspection after start-up and commissioning. We coordinate both with your town's Authority Having Jurisdiction; you just keep the property accessible for them.

I've read the AC refrigerant changed — does R-454B affect what you're installing in my house?

It does, in your favor. New residential heat pumps and AC — including the Carrier Infinity equipment we install — now run on R-454B, the lower-global-warming-potential refrigerant that replaced R-410A in the 2025 transition. For your install it means current-generation equipment with no legacy-refrigerant phase-out exposure. All refrigerant work is performed under EPA Section 608 certification (Section 10, Insurance and Licensing), and recovering the refrigerant from your old system is certified handling — scoped explicitly in the existing-equipment-disposal-and-refrigerant-recovery exclusion so you can see exactly how it's handled.

Can you take care of the state and federal heat-pump rebates for me?

We coordinate them, but we don't file on your behalf — and your proposal shows gross pricing, before any rebate. Rhode Island heat pumps can stack Clean Heat RI, RI Energy utility rebates, and the 30% federal tax credit, which adds up to real money. We size and document the install so it qualifies, and hand you the equipment specs and commissioning paperwork the programs ask for — but the rebate and tax-credit claims are yours to submit (your tax situation is yours, not ours to represent). We'd rather you see the true cost and claim the incentives cleanly than bury an estimate inside our number.

Will a heat pump actually keep my house warm through a freezing winter, or do I need backup heat?

A properly-sized cold-climate heat pump carries a Rhode Island winter. Our design temperature here is around 9°F — the coldest the system is sized to handle — and a modern hyper-heat unit (the Ultimate Cold Climate tier) still delivers rated heat well below freezing. Most installs land a balance point around 25-30°F: above it, the heat pump does all the work; below it, supplemental heat (electric strip or your existing gas backup) cycles in automatically to cover the gap. On the coldest nights you may hear the backup run for a stretch — that's the system working as designed, not failing. Your commissioning report records the actual balance point, so you know exactly where that line falls.

Glewit for other trades

Pool builders →Landscape contractors →Septic installers →Electrical contractors →Tree-care contractors →Roofing contractors →Solar contractors →Kitchen & bath →Restoration →Decks & outdoor living →Window & door →Custom home builders →

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