200+
Experience the benefits of solar power.
We design around your roof, your usage, and your tariff - then install neatly, commission properly, and hand you an Evidence Pack showing exactly what was done. No salespeople, just straight answers and friendly advice.
Over 200 local installs across Exeter and Devon
5.0*
10yr
It's as easy as...
1. Online estimate
Answer a few quick questions about your home and goals. 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, and electrics using satellite mapping and on-site assessment to model your roof.
4. Design and quote
Clear proposal and fixed price quote with expected performance and every assumption explained.
5. Install
We install the system neatly, then complete commissioning and Evidence Pack handover. We follow up to confirm everything is working as expected. Typical on-site install takes 1 week.
6. Evidence Pack
You receive a complete handover pack (photos, certificates, commissioning record, settings & warranties).
Your home. Your usage. Your system.
We don't sell off-the-shelf packages. Every system starts with your goals and how you use energy - not just your roof size. Real savings, not marketing claims.
How solar panels work
Solar panels turn daylight into electricity. They work every day - not just when it's sunny. You use what you generate; the rest gets sold back to the grid or stored in a battery for the evening. A typical home system in the South West generates enough to cover 50-80% of your electricity, depending on roof, usage, and weather.
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Solar works in daylight.
Panels generate power on cloudy days. Even in a UK winter, a well-designed system still produces useful output.
0% VAT on residential solar.
Domestic installations of solar or batteries are currently zero-rated for VAT.
Export what you don't use.
The Smart Export Guarantee (SEG) means your energy supplier pays you for surplus electricity.
Solar panels last 30 years.
Modern panels degrade slowly - most manufacturers back this with a 25-year performance warranty.
Your roof won't be damaged.
We survey roof condition first, use the right mounting for your roof type, and weatherproof every fixing.
What solar panels can do for your home
Solar panels can transform your energy bills - but only if the system is designed for your specific roof, usage, and tariff. We focus on the simplest system that delivers real, measurable results.
Save £800-£1,400/yr
A typical home saves £800-£1,400 per year depending on system size. Actual savings depend on usage, tariff, system size, and daytime consumption. We give you a personalised estimate after survey.
Earn from SEG
The Smart Export Guarantee pays you for electricity you send back to the grid. Rates vary by supplier - we help you pick the right export tariff and configure your system to maximise returns.
Payback in 5-8 yrs
Most homeowners see full payback within 5-8 years. Your panels are designed to last 25+ years, so the remaining 17-20 years are effectively free electricity generation. Payback depends on usage, tariff, export rates, and system cost.
Protect yourself
Every unit you generate is one you don't buy. As grid prices rise, your system becomes more valuable. You lock in a portion of your energy at today's cost.
Future-proof
We design your electrical infrastructure for batteries and EV charging from day one - even if you add them later. No re-wiring, no extra costs.
Add property value
Energy efficiency matters to buyers, lenders, and valuers. Your Evidence Pack shows what was installed, how it performs, and what it produces - ready for EPC updates, insurance, or resale.
Why homeowners across Exeter and Devon choose us
Most installers sell you hardware. We start with your house, your habits, and your tariff - and take a systems approach to ensure the solution actually fits your needs.
1. Designed around your real usage
We look at how and when you use electricity - not just your roof. The result: a system sized for your household, not a "bigger is better" upsell or a one-size-fits-all package.
2. Commissioning and settings are part of the job
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 real savings are won - and where most installers stop.
3. Evidence Pack handover
Every job ends with a clear Evidence Pack: install photos, commissioning record, settings, warranties, certificates, and a monitoring guide. Not a manual you'll never read but a useful pack of everything you need for resale, mortgage or insurance.
4. Local, tidy, and guaranteed
Based in Exeter and Devon, we know South West housing stock - slate roofs, coastal weather, rural grid constraints, and heritage considerations. Neat cable runs, labelled isolators, sensible routes, and clear shutdown guidance prevent headaches later.
5. Quality equipment from trusted manufacturers
We use panels, inverters, and batteries from manufacturers with proven UK track records - Aiko, Eurener, Trina, Longi and Jinko. Components are chosen for performance, warranty, and long-term parts availability - not the cheapest option on the day.
6. Honest about what works and what doesn't
Not every roof is ideal. Not every home needs a battery. We'll tell you honestly whether solar makes sense for your property and flag anything that doesn't add up - before you spend a penny. If the numbers don't work, we'll say so.
Don't take our word for it
Rated 5.0 out of 5 on Google - 50 reviews from homeowners across Exeter and Devon.
Get my free estimate5/5
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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Spread the cost
Solar is a significant investment. We want to make it accessible.
Kanda
Finance available from Kanda - subject to status and affordability checks. Spread the cost over 5-10 years with monthly payments from £89 to £165 per month.
From £89 to £165per month
Finance is subject to status, affordability, and lender criteria. We are not a financial adviser. Representative APR examples are available on request. Finance is provided by Kanda, not by Watt & Waves. We can explain the options, but the decision is yours.
Common questions about solar panels
Ready for a solar estimate designed around your home?
Start your free estimate now and get clear next steps with no pressure.
Ready for a solar estimate designed around your home?
Start your free, no-obligation estimate. We'll explain what works, what doesn't, and why - with clear numbers and no pressure. Available for homeowners in Exeter and Devon.