Commusoft is field service software for plumbing, heating and electrical trades. Its strength is service work: job management, scheduling and maintenance contracts for reactive and planned visits. Its website also lists a renewables offering for heat pump and solar work, with MCS handover packs, and multi-option proposals through the Sales+ add-on. There's no DNO application integration listed, and design happens in other tools.
Payaca is built around the clean tech install itself: the G98 or G99 application submitted through ENA Connect, the MCS documentation, and design with Glow and Flow (both limited release), on the same project as the quote, the install and the invoice. Here's how they compare for a solar, heat pump, battery or EV charger business.
The short answer
Commusoft is field service software for plumbing and heating trades. Choose Payaca if renewables projects are the bulk of your work, with DNO applications through ENA Connect, MCS documentation and design on the job rather than bolted on. Commusoft fits if reactive service calls are most of what you do.
- Payaca is best for clean tech install businesses where the work is project-shaped: survey, design, grid application, install, commissioning, handover.
- Commusoft is best for multi-trade service businesses running high volumes of reactive and planned service work across plumbing, heating and electrical, where renewables are a smaller share of the work.
- Payaca publishes its pricing: Growth, the standard plan for established install businesses, is £1,199/month. Current plans and eligibility are on the pricing page. Commusoft prices per user licence on a 12-month contract with paid add-ons, and doesn't publish its prices.
Looking at this yourself?
We'll show you your own jobs in Payaca, side by side with how you run them in Commusoft today. Book a demo
Feature comparison
| Feature | Payaca | Commusoft |
|---|---|---|
| Industry focus | Built specifically for clean tech: solar, heat pumps, batteries, EV | Field service for plumbing, heating and electrical trades, with a renewables offering for heat pump and solar work |
| DNO applications | Direct integration with ENA Connect for G98/G99 applications | No DNO application integration listed, so G98/G99 applications are handled separately |
| MCS compliance | Built-in MCS certificate generation and documentation from the job, plus an MCS compliant solar estimate from Glow (limited release) | Collects MCS paperwork, commissioning certificates and photos into a handover pack customers download from the portal |
| Design | Design solar with Glow and estimate heat pumps with Flow, both in limited release, or import from EasyPV, Heatpunk, OpenSolar and Spruce | Spruce integration brings Spruce enquiries in as opportunities; design happens outside Commusoft |
| Quoting & proposals | Multi-option solar and heat pump proposals with equipment specs and BUS grant deductions. The customer picks options, signs and pays the deposit in one flow, with no add-on needed | Multi-option proposals with online acceptance and deposits through the Sales+ add-on, including BUS grant deductions |
| Job management | Projects run through your pipeline stages from survey to handover, with stage automations and rules that stop a job moving on until the work is done | Job management for service work, plus installation tracking from survey to commissioning |
| Mobile app | Field app that works fully offline: schedule, checklists, photos, time logs, and documents and signatures captured on site | Offline mobile app with custom forms, certificates and photo capture |
| Customer portal | Branded portal with project tracking and online payments | Customer portal for job history, quote approval, invoice payment and handover documents |
| Accounting integration | Two-way sync with Xero and QuickBooks | QuickBooks, Xero, Sage and FreeAgent integrations |
| API & extensibility | Open API, Zapier, and an MCP server for Claude and Cursor | Open API and a private application framework for custom integrations |
| AI assistant | Agent Dave built in: answers from your account data, drafts proposals and templates, and builds automations you check before they go live | AI:den+ for call and email summaries, drafting and job reports, listed as a coming-soon add-on on their plans page |
Industry focus
Built specifically for clean tech: solar, heat pumps, batteries, EV
Field service for plumbing, heating and electrical trades, with a renewables offering for heat pump and solar work
DNO applications
Direct integration with ENA Connect for G98/G99 applications
No DNO application integration listed, so G98/G99 applications are handled separately
MCS compliance
Built-in MCS certificate generation and documentation from the job, plus an MCS compliant solar estimate from Glow (limited release)
Collects MCS paperwork, commissioning certificates and photos into a handover pack customers download from the portal
Design
Design solar with Glow and estimate heat pumps with Flow, both in limited release, or import from EasyPV, Heatpunk, OpenSolar and Spruce
Spruce integration brings Spruce enquiries in as opportunities; design happens outside Commusoft
Quoting & proposals
Multi-option solar and heat pump proposals with equipment specs and BUS grant deductions. The customer picks options, signs and pays the deposit in one flow, with no add-on needed
Multi-option proposals with online acceptance and deposits through the Sales+ add-on, including BUS grant deductions
Job management
Projects run through your pipeline stages from survey to handover, with stage automations and rules that stop a job moving on until the work is done
Job management for service work, plus installation tracking from survey to commissioning
Mobile app
Field app that works fully offline: schedule, checklists, photos, time logs, and documents and signatures captured on site
Offline mobile app with custom forms, certificates and photo capture
Customer portal
Branded portal with project tracking and online payments
Customer portal for job history, quote approval, invoice payment and handover documents
Accounting integration
Two-way sync with Xero and QuickBooks
QuickBooks, Xero, Sage and FreeAgent integrations
API & extensibility
Open API, Zapier, and an MCP server for Claude and Cursor
Open API and a private application framework for custom integrations
AI assistant
Agent Dave built in: answers from your account data, drafts proposals and templates, and builds automations you check before they go live
AI:den+ for call and email summaries, drafting and job reports, listed as a coming-soon add-on on their plans page
See it in Payaca
The real product, on our demo accounts.
Compliance & documentation
Generate MCS documents and keep every certificate on the job. More on Compliance & documentation
The whole job in 100 seconds
Switching from Commusoft
We migrate from the backup export Commusoft produces for your account. What moves across:
- Customers and properties, including landlord records with several sites
- Contacts and customer notes, such as access details and key safes
- Service reminders and their due dates
- Active and completed jobs, and open estimates
- Job photos, certificates, quote PDFs and other files, on the job they belong to
We start with a few real records for you to check side by side against Commusoft, then run the full import, and can refresh it from each new backup while your engineers move across. Nothing goes to your customers until you've checked the imported due dates. Past invoices and payments come across as PDFs and summaries, and your accounting package stays the ledger. Service plan direct debits can't transfer between systems, so customers re-enrol on their plan in Payaca.
Growth and above include guided onboarding: we map your workflow, migrate your data and train your team, for a one-off £1,500.
Which is right for you?
Choose Payaca if
- You install solar, heat pumps, batteries or EV chargers
- You need to submit DNO applications (G98/G99)
- You need MCS compliance documentation
- You want design and the job in one system, or you import from EasyPV, Heatpunk and OpenSolar
Consider Commusoft if
- You do traditional plumbing, HVAC or electrical work
- Your work is mainly reactive service calls
- Renewables are a smaller share of your work
Questions
What's the main difference between Payaca and Commusoft?
Commusoft is a field service platform for plumbing, heating and electrical trades. Its website also lists tools for renewables work, such as MCS handover packs. Payaca is built specifically for clean tech install businesses (solar, heat pumps, batteries, EV chargers), with DNO applications through ENA Connect, MCS documentation and solar design in the same project as the job. If renewables projects are most of your work, Payaca is built around them.
Does Commusoft handle DNO applications?
Commusoft doesn't list DNO application support or an ENA Connect integration on its site, so G98/G99 applications are handled in the ENA Connect portal or separate tools. Payaca integrates directly with ENA Connect, so you fill in the application on the project and Payaca submits it.
How do Commusoft and Payaca handle MCS paperwork?
Commusoft's website describes a renewables offering that collects MCS paperwork, commissioning certificates and site photos into a handover pack your customer downloads from its portal. Payaca generates MCS documentation and certificates from the job data, and Glow (limited release) builds an MCS compliant solar estimate on the same project.
Which is better for solar installation businesses?
Payaca is purpose-built for solar businesses, with solar design in Payaca with Glow (limited release) plus imports from EasyPV and OpenSolar, DNO applications through ENA Connect and solar proposal templates. Commusoft is a wider field service platform, with solar design done in other tools. It suits businesses where solar sits alongside a larger plumbing, heating or maintenance operation.
Is Commusoft cheaper than Payaca?
Commusoft prices per user licence on a 12-month contract, with add-ons such as Sales+ and Fleet+, and doesn't publish figures on its plans page. Payaca publishes its pricing on its pricing page. When comparing, include the time your team spends on DNO applications and design in separate tools.
Can I migrate from Commusoft to Payaca?
Yes. We migrate from your Commusoft backup export: customers and properties, contacts, service reminders, jobs, estimates and their files. The section above sets out what moves and how. Book a demo to scope yours.
Competitor details are based on their public information as of 29 October 2026. Spotted something out of date? Tell us.