200+
Whole-home energy, designed as a system to suit you.
Solar panels, batteries and EV chargers for homes across Exeter and Devon. We start with how you use energy, your tariff and goals to design the simplest system that delivers real results. No salespeople, just straight answers and friendly advice.
Over 200 local installs across Exeter and Devon
5.0*
10yr
A complete home energy package
Start with the quick wins. Then upgrade or add battery or EV charging only the numbers justify it. We design everything as one system, so it actually works together, then install neatly, commission properly, and hand you an Evidence Pack showing exactly what was done.
Solar Panels
Designed for your roof, your usage and your tariff - with an install that looks neat and lasts.
From £4,800
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Battery Storage
Store what you generate, shift usage to cheaper periods, and reduce your dependence on the grid.
From £3,100
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EV Chargers
Charge at home for a fraction of public charging costs - and use your solar to charge for even less.
From £950
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Electrical Services
Consumer unit upgrades, EICRs and general electrical work. Delivered by the same team that handles your energy install.
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It's as easy as...
1. Online estimate
Answer a few quick questions about your home and your goals. You'll get an estimate tailored to you and clear next steps. No obligation.
2. Quick call (optional)
Talk it through honestly with no pressure and no sales script.
3. Free site survey
We check roof condition, shading, electrics, cable routes, and where equipment goes — using satellite mapping and on-site assessment. We look at details most installers skip.
4. Design and quote
Clear proposal and fixed price quote with expected performance and every assumption explained.
5. Install
We install neatly, test everything, and configure monitoring and settings for your tariff.
6. Evidence Pack
You receive a complete handover pack (photos, certificates, commissioning record, settings, warranties, monitoring guide) plus clear next steps and what 'normal' looks like.
Less hassle. Better outcomes.
No off-the-shelf packages. No pushy sales. Just a clear starting point, honest advice, and a system designed around your usage and tariff.
Why homeowners across Exeter and Devon choose us
Most installers sell you hardware. We start with your house, your habits, and your tariff - and design a system that actually fits.
1. Independent advice, not a sales pitch
We specify what fits your property and tariff, not what we need to shift this month. If the numbers don't work, we'll say so before you spend a penny.
2. Outcome-driven, not hardware-driven
We predict performance, commission properly, and show you the results with monitoring and a clear handover. The goal is measurable savings, not a box on your roof.
3. Commissioning is where the savings are won
Panels on a roof are half the story. We configure monitoring, battery charging, export settings, and scheduling to work with your tariff and routines. This is where most installers stop. It's where we start paying attention.
4. Evidence Pack handover
Every job ends with a clear Evidence Pack: install photos, commissioning record, settings, warranties, certificates, and a monitoring guide. Everything you need for warranty claims, insurance, EPC updates, or selling your home.
5. Local, tidy, and guaranteed
Based in Exeter and Devon. We know South West housing stock — slate roofs, coastal weather, rural grid constraints, heritage considerations. Neat cable runs, labelled isolators, sensible routes, and a 10-year workmanship guarantee (insurance-backed).
6. Quality equipment from trusted manufacturers
We use panels, inverters, and batteries from manufacturers with proven UK track records — Aiko, Eurener, Trina, Longi and Jinko. Chosen for performance, warranty, and spares availability — not the cheapest option on the day.
Don't take our word for it
Rated 5.0 out of 5 on Google - 50 reviews from homeowners across Exeter and Devon.
Read all 50 reviews5/5
Watt & Waves looked at how we use electricity, not just our roof, to design the right solution. The install went smoothly and the handover made everything crystal clear. We are already seeing a real difference in our bills.
Sarah M.
Totnes
3-bed semi, slate roof
5/5
Tidy install, no mess, and they commissioned everything properly before they left. They set up monitoring so we could see it working from day one. No hard sell — just honest advice about what would and wouldn't work for our house. Recommended.
James K.
Exmouth
4-bed detached, tile roof
5/5
We weren't sure if a battery was worth it. They ran the numbers for our tariff and showed us exactly where the savings would come from. Really straightforward process from start to finish. Super pleased!
Helen T.
Exeter
3-bed terraced, Victorian terrace
Recent projects across Exeter and Devon
Real installs, real workmanship. Every project follows the same process: survey, design, install, commission, and finishes with an Evidence Pack.
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TivertonDetached Cottage
Heritage slate roof with partial shading
Generating ~4,100 kWh/year. Saving approximately £950/year on Octopus Flux.
Exmouth4-bed Detached
Solar and battery tuned to time-of-use tariff
6 kWp system with 9.5 kWh battery. Saving approximately £1,100/year with ~75% self-consumption.
Crediton3-bed Semi
Compact system, maximum return
3.4 kWp system on south-facing tile roof. Saving approximately £750/year. Payback projected at ~5.5 years.
Common questions
Still have questions?
Get a free estimate and clear next steps with no pressure.
Ready to find out what works for your home?
Start your free, no-obligation quote. We'll show you a clear starting point, explain the assumptions, and talk you through what works, what doesn't, and why. Available for homeowners in Exeter and Devon.
Watt & Waves
Unit 1, Exeter Business Park, Station Road, Exeter, Devon, EX1 0AA, United Kingdom
07760 292 199hello@wattandwaves.co.ukGet my free estimate
Meet Davey and Matt - your local solar team in Exeter.