Solar installation in the UK is booming. Government grants, rising energy costs, and net zero targets have pushed demand through the roof. The Solar Energy UK trade body reports over 1.5 million solar installations nationwide, with the industry growing at 30%+ year-on-year.
But the businesses doing the actual installations — often 3-15 person teams — are running on spreadsheets, paper survey forms, and a patchwork of generic tools that don't understand MCS compliance, DNO applications, or the unique workflow of a solar install.
This guide reviews every serious software option for UK solar and renewable energy installers in 2026.
What solar installers actually need
Solar installation isn't a standard trade workflow. Before reviewing platforms, here's the checklist:
- Site survey management — roof orientation, shading analysis, structural assessment records
- MCS certification tracking — installer and company certification with expiry alerts
- DNO application management — G98/G99 notifications, export limitation records
- System design records — panel layout, inverter sizing, battery specs per job
- EPC integration — Energy Performance Certificate data for grant eligibility
- Grant and scheme tracking — SEG, ECO4, BUS (Boiler Upgrade Scheme) paperwork
- Multi-stage job management — survey → design → DNO → install → commission → handover
- Commissioning certificates — MCS-compliant handover packs
- Warranty tracking — panel, inverter, and battery warranty management
- Scaffold coordination — most installs need scaffolding, track the booking
- Invoicing with deposit stages — large ticket items (£8-15K) need staged payments
- RAMS — required for commercial and some domestic rooftop work
The platforms reviewed
1. SimPRO
Enterprise field service management. Australian-built, now established in the UK renewable energy sector.
What it does well: Complex multi-stage project management, inventory tracking for panels and inverters, contract management for commercial solar maintenance. Good for larger firms doing 20+ installs per month with warehouse stock.
What it doesn't do well: Onboarding takes weeks. Pricing is enterprise-level and hidden behind sales calls. The interface is complex. Smaller installers find it overwhelming — you need a full-time admin to run it properly.
Pros
- Comprehensive project and inventory management
- Multi-stage job workflows suit solar install process
- Strong reporting for larger teams
- Contract management for O&M agreements
Cons
- Pricing starts high and scales steeply
- No built-in MCS compliance tracking
- Steep learning curve
- No AI features
- No built-in payment processing
Best for: Large solar firms (20+ engineers) with dedicated office staff and complex inventory needs.
2. Commusoft
UK-based field service platform with growing adoption in the renewable energy sector.
What it does well: Job lifecycle management, customer communication automation, parts tracking. Their solar-specific features are limited but the core workflow handles multi-visit jobs reasonably well.
What it doesn't do well: Pricing is expensive — around £80/user/month for a 5-person team, that's £400/month. No MCS-specific compliance features. No built-in survey forms or system design record management.
Pros
- UK-based with UK support
- Good customer communication tools
- Parts ordering and tracking
- Integrates with Xero and QuickBooks
Cons
- ~£400/month for 5 users
- No MCS compliance tracking
- No site survey management
- Hides pricing behind sales calls
- No AI features, no GPS fleet tracking
Best for: Established solar firms willing to pay premium pricing for solid job management basics.
3. BigChange
UK-built field service platform. Covers fleet tracking and job management with some adoption among renewable energy installers.
What it does well: GPS fleet tracking built in, good for companies managing multiple installation teams across regions. Job sheets can be customised for solar workflows.
What it doesn't do well: At £79.95/licence/month, costs add up fast. The platform tries to do everything but doesn't specialise in solar. No MCS tracking, no DNO application management, no system design records.
Pros
- GPS fleet tracking included
- Customisable job sheets
- Route optimisation for multi-site days
- UK-based
Cons
- £79.95/licence/month (£400/month for 5 users)
- No solar-specific compliance features
- No MCS or DNO management
- Interface feels dated
- Complex to configure
Best for: Solar firms that need fleet tracking and don't mind paying enterprise prices for generic tools.
4. Tradify
New Zealand-built job management used by some UK solar installers. Simple and affordable.
What it does well: Basic job management is clean and simple. Quoting, scheduling, and invoicing work well for straightforward jobs. The mobile app is decent.
What it doesn't do well: No compliance tracking of any kind. No multi-stage job workflows suited to solar (survey → design → install → commission is 4+ stages). No GPS, no AI, no call recording. At £37/user/month, a 5-person team pays £185/month for basic features.
Pros
- Simple, clean interface
- Good basic quoting and invoicing
- Reasonable mobile app
- Integrates with Xero
Cons
- Per-user pricing adds up
- No compliance tracking (MCS, RECC, NAPIT)
- No multi-stage job workflows
- No GPS fleet tracking
- No AI features, no call recording
Best for: Solo installers or very small teams wanting basic job management without complexity.
5. Jobber
North American field service platform. Some UK solar installers use it, but it's designed for the US/Canadian market.
What it does well: Slick interface, good scheduling, solid customer communication. Online booking works well for maintenance callbacks.
What it doesn't do well: Not built for UK compliance. No MCS tracking, no understanding of UK grant schemes, no DNO management. Payment processing is US-focused. VAT handling is basic.
Pros
- Modern, intuitive interface
- Good scheduling and dispatch
- Client hub for customer self-service
- Strong automation features
Cons
- Not built for UK market
- No MCS or UK compliance features
- No GPS fleet tracking
- Per-user pricing (expensive at scale)
- Payment processing not optimised for UK
Best for: Solar firms that prioritise UX over UK-specific features.
6. Muster
AI-powered job management platform built for UK trade businesses including solar and renewable energy installers.
What it does well: Flat-rate pricing means your cost doesn't climb as you add engineers. AI receptionist catches every sales call — critical for solar where a missed enquiry can be worth £10,000+. MCS and NAPIT certification tracking with automatic expiry alerts. Multi-stage job workflows handle the full solar journey. RAMS generation for commercial installs. Muster Pay gets you paid at handover with card, bank transfer, or Apple Pay.
What it doesn't do well: Newer to market than simPRO or Commusoft. No dedicated system design tools (you'll still use PV*SOL or similar). No built-in DNO application forms.
Pros
- Flat-rate pricing: £179/month for up to 9 users
- AI receptionist catches every enquiry
- MCS and NAPIT compliance tracking with alerts
- Multi-stage job workflows
- RAMS generation
- GPS fleet tracking included
- Muster Pay: get paid at handover
- Call recording with transcription
Cons
- Newer platform
- No built-in PV design tools
- No DNO application forms
Best for: UK solar installers wanting one platform for jobs, compliance, payments, and communication without per-user pricing.
Pricing comparison: 5-person solar team
| Platform | Monthly cost (5 users) | Compliance tracking | GPS | AI |
|---|---|---|---|---|
| Muster Starter | £179 | Yes (MCS, NAPIT) | Yes | Yes |
| Tradify Pro | £185 | No | No | No |
| Jobber Grow | ~£195 | No | No | No |
| BigChange | £400 | No | Yes | No |
| Commusoft | ~£400 | No | No | No |
| SimPRO | Quote required | No | No | No |
At 10 users, the gap widens further. Muster stays at £179/month. Tradify jumps to £370. BigChange hits £800.
What to look for in solar software
1. Multi-stage job tracking
Solar installs aren't one-visit jobs. Survey, design, DNO notification, scaffold booking, installation, commissioning, handover — that's 6+ stages. Your software needs to handle this without workaround spreadsheets.
2. MCS compliance
If you're MCS-certified (and you need to be for most government schemes), your software should track certification expiry, engineer qualifications, and generate compliant handover packs. Most generic platforms don't do this.
3. Capture every enquiry
A missed solar enquiry can be worth £8,000-15,000. AI call handling ensures every phone call gets answered, even when your team is on a roof. This isn't a nice-to-have — it directly impacts revenue.
4. Get paid at handover
Solar customers expect to pay at the point of commissioning. Mobile payments (card, bank transfer, Apple Pay) at the job site mean no chasing invoices for weeks.
5. Don't overpay for growth
Per-user pricing punishes growth. When you hire your sixth, seventh, eighth installer, your software cost shouldn't jump by £40-80 per person per month.
Our recommendation
For most UK solar installers running 3-15 person teams, Muster offers the best combination of price, features, and UK compliance. The flat-rate pricing alone saves £200-400/month compared to per-user alternatives at 10+ users, and the AI receptionist and compliance tracking are genuine differentiators.
If you're a large enterprise firm (20+ engineers, complex inventory, warehouse management), simPRO has deeper project management — but you'll pay significantly more and need dedicated admin staff.
If you just want the absolute simplest option and don't care about compliance tracking, GPS, or AI, Tradify's basic tools work for solo installers.
For everyone in between — growing UK solar businesses that need compliance, communication, and cash flow sorted — Muster is worth a look.