Checker alternatives for air-conditioning installers
Checker is job management and certificate software for gas, heating, electrical, oil, refrigeration and renewables trades, strong on certificates, quotes, invoices and payments. If you install air conditioning, you may find it doesn't size a system, run a heat-load calculation or produce the system drawings your jobs need. Here are the best alternatives — starting with the one built specifically for air conditioning.
1. Vento
Vento is the only UK all-in-one built specifically for air conditioning. Unlike Checker, it runs a room-by-room heat load as you survey, matches correctly sized units, produces scaled split/multi-split drawings, generates a branded proposal the customer e-signs, takes the deposit and keeps an F-Gas register — one flat-price platform (from £39/mo, not per user).
- Room-by-room heat load built in
- Split & multi-split system design
- Branded proposals, e-sign & deposits
- F-Gas register & leak-check scheduling
- Flat pricing, not per user
- Full workflow on a phone, on site
Why air-con installers look for a Checker alternative
Checker is built around certificates across several trades, which suits gas and heating engineers well. Air-conditioning firms usually want the survey, room-by-room sizing and system design that produce the quote, and F-Gas records attached to each system they install.
Vento does those, but doesn't produce gas safety or electrical certificates — if those are your daily work, keep a certificates app. See the full Vento vs Checker comparison.
Vento and Checker, feature by feature
"Not advertised" means we couldn't find it in what Checker publishes — features change and vary by plan, so confirm anything that matters to you with them directly.
| Feature | Vento | Checker |
|---|---|---|
| Air-conditioning design & engineering | ||
| Built specifically for air conditioning | The entire workflow | Not advertised |
| Room-by-room heat-load (Manual J) | Built in, instant | Not advertised |
| Split & multi-split system design | Scaled, construction-issue drawings | Not advertised |
| Unit capacity matching | From a SEER/SCOP catalogue | Not advertised |
| Condenser placement & pipe routing | On the drawing | Not advertised |
| F-Gas register, CO₂e & leak-check scheduling | Built in | Varies by plan — confirm with them |
| Running-cost estimates on proposals (SEER/SCOP) | Automatic | Not advertised |
| Running your business | ||
| Jobs, scheduling & CRM | Yes | Yes |
| Quotes & invoicing | Yes | Yes |
| Branded proposals with e-signature | Good/Better/Best options | Not advertised |
| Online payments & deposits | Card, Klarna, DD, transfer | Yes |
| Service & maintenance plans | Recurring, with certificates | Varies by plan — confirm with them |
| Mobile app for on-site work | Full workflow on a phone | Yes |
| Running the operation | ||
| Dispatch board | Drag-and-drop, per engineer | Yes |
| Route planning | From Professional | Varies by plan — confirm with them |
| Van & store stock | Ledger-backed levels | Varies by plan — confirm with them |
| Purchase orders & invoice matching | Yes | Varies by plan — confirm with them |
| Subcontractor job access | Per-job link, no account | Varies by plan — confirm with them |
| Lone-worker check-ins | Office alerted if missed | Varies by plan — confirm with them |
| Customer portal | Emailed link, no password | Varies by plan — confirm with them |
| Schedule of Rates pricing | Import NHF, PSA or your own | Varies by plan — confirm with them |
| Batch billing for maintenance contracts | Draft, review, commit | Varies by plan — confirm with them |
| Specific to this comparison | ||
| Gas safety, electrical & OFTEC certificates | No — commissioning & F-Gas certificates only | Yes |
What to look for in a Checker alternative
Sizing built in
Does it calculate each room's load, or do you size on a spreadsheet and type the result in?
Design to quote
Does the quote come out of the design, or is it re-keyed in a separate step?
F-Gas against the unit
Is the refrigerant record attached to each installed system, with leak checks scheduled from the charge?
Proposals customers sign
Can the customer sign and pay the deposit on their phone from the proposal?
Contract length
What is the minimum term, and what happens to your data if you leave? Get it in writing.
Published pricing
Is the price published, and is it per user or flat?
Other alternatives
2. KORD
Field-service and F-Gas software for air conditioning and refrigeration contractors.
3. Fergus
Job-management software for trades, with a focus on workflow and cash flow.
4. Tradify
Simple quoting, scheduling and invoicing for small teams.
These are capable general trade platforms; none is an air-conditioning design tool. Features vary by plan — confirm current details on each provider's site.
Frequently asked questions
What is the best Checker alternative for air conditioning installers?
Vento, because it's built for the trade: room-by-room sizing, split and multi-split design, e-signed proposals with deposits and F-Gas records attached to each installed system.
Does Vento do gas safety certificates?
No. Vento produces commissioning and F-Gas certificates for air-conditioning installs, not gas safety or electrical certificates.
How much does Vento cost?
Vento's pricing is published and flat per tier: from £39 a month billed annually (£49 month to month). Every plan has a 14-day free trial.
See also: all Vento comparisons, best air-con software 2026, and air conditioning software.
More alternatives pages: Joblogic alternatives, Commusoft alternatives, Simpro alternatives, BigChange alternatives, ServiceM8 alternatives, Tradify alternatives, Jobber alternatives, Powered Now alternatives, Fergus alternatives, KORD alternatives, Heatpunk alternatives, Heat Engineer alternatives, Spruce alternatives.
A Checker alternative built for air-con
Survey, size, design, quote and get paid — one platform for the whole air-conditioning job. 14-day free trial.
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