Most UK solar installers do not have a demand problem. Homeowners fitted more solar in 2025 than in any year on record; energy prices are still the topic at every kitchen table, and the tax position has rarely been friendlier. What installers have is a diary problem. Surveyors sit idle on a Tuesday, salespeople spend the morning ringing enquiries that never pick up, and half the quotes that do go out sit alongside three competitors who have already undercut you.
This guide covers every realistic route to winning solar work in the UK, what each one actually costs once your own team’s time is counted, and how to judge a supplier properly before you spend a penny with them.
The UK Solar Market Is Growing Faster Than Most Sales Teams Can Keep Up With
The Numbers Behind The Demand
There were 203,125 MCS-certified solar installations across the UK in 2025, the highest annual figure ever recorded and the first time the 2011 boom has been beaten. That takes the running total to roughly 1.85 million certified installations.
Three things are keeping that momentum going:
- Zero-rated VAT. Solar installed in residential property in Great Britain is zero-rated for VAT until 31 March 2027, after which it reverts to the reduced rate of 5%. That deadline gives a homeowner a real reason to act this year.
- Export payments. The Smart Export Guarantee obliges certain licensed electricity suppliers to pay small-scale generators for the power they export, and those tariffs must always be above zero. It gives your sales team a second savings figure to work with.
- Payback that makes sense. The Energy Saving Trust puts an average home system at around £7,600, with payback between nine and twelve years depending on region and household usage.
Why Record Demand Still Leaves Diaries Half Empty
New-build properties accounted for around 35% of solar installations in 2025. Those jobs are locked up by developers and their chosen contractors, so the whole retrofit market is competing over what is left. The homeowner journey has also slowed down: people research for weeks, ask three or four companies for a price, then go quiet for a month. If your pipeline depends on people who are already shopping around, you are joining a queue and competing on price.
What Solar Lead Generation Actually Means
The phrase “solar lead generation” covers four completely different products, which is why installers so often compare two prices that were never comparable.
Data, Enquiries, Leads And Booked Qualified Appointments
Data is a name, a postcode, and a phone number, usually bought in bulk. Nobody has spoken to that person about solar, so your team does all the work.
An enquiry is someone who has filled in a form or requested a callback. Better, but nothing is verified. They might rent, or have a north-facing roof shaded by a horse chestnut tree.
A lead is an enquiry with some detail attached, often checked lightly and often shared. Shared means the same homeowner is sold to two, three or four installers, so you are quoting against companies who received the identical enquiry at the identical moment.
A booked qualified appointment is a homeowner who has been called by a human, checked against criteria you agreed in advance, and put into your diary at a time both decision makers have confirmed they will be at the property. That is the only thing Watts Marketing provides. No data drops, no lists handed over for your team to dial through.
Three terms worth clearing up.
- MCS is the Microgeneration Certification Scheme, the certification homeowners look for, and most suppliers require before working with you.
- A CCJ is a County Court Judgment, a court ruling that someone owes a debt, and a proper qualification process screens for it because finance applications fall over on it.
- A hot key is a live phone transfer, where an agent has the homeowner on the line and passes the call to your sales team.
How To Get Solar Leads: The Four Routes UK Installers Use
There are good operators in every one of these categories, and plenty of installers make each of them pay. What matters is understanding what each route leaves on your plate, because that is where the real cost sits.
Route One, Run Your Own Paid Advertising
You buy clicks on Google and Meta, send people to landing pages, and handle every enquiry yourself. Done well, it gives you total control and full ownership of the customer relationship.
Solar is one of the most competitive marketing landscapes in UK home improvement, and you are bidding against national installers, comparison sites and lead generators at the same time. You also need someone to build landing pages, write ad copy, manage bids weekly and answer enquiries within minutes rather than hours, because contact rates fall off a cliff between a five-minute callback and a thirty-minute one.
What you still own: the ad budget, the testing period, the response times, the qualifying and the booking.
Route Two, Solar Marketing That Compounds
Local SEO, useful content and a steady flow of reviews make up the slowest route and the cheapest one over a two year horizon. Claim and fill out your Google Business Profile, build a page for every town you cover, publish honest answers to the questions homeowners ask (“will solar work on a north-facing roof”, “what happens to my panels if I move”), and ask every customer for a review the week you commission their system.
Worth doing regardless. Just be realistic about timing, because nothing here fills your diary next month.
What you still own: all of it, though volume builds cheaply once it starts.
Route Three, Directories And Comparison Sites
Checkatrade, MyBuilder, Bark and the solar comparison sites work on a similar model. You pay a subscription, a per-lead fee, or both, and you reach homeowners who are actively requesting quotes.
They are useful platforms, and they do generate work. Two things to weigh up before you sign. The traffic is price-led by design, because comparison is the whole proposition to the homeowner, and most platforms share the same enquiry with several trades. Compare Solar, as an example of a transparent one, publishes £45 plus VAT per lead and shares each homeowner with up to three installers per postcode.
What you still own: contacting, qualifying, booking, and winning against two other quotes on the same job.
Route Four, Buying Booked Qualified Appointments
Somebody else creates the interest, calls the homeowner, checks them against your criteria, and puts a confirmed slot in your diary. Your salesperson turns up and sells.
Headline prices in this category are typically higher than per-lead pricing, but they should be, because the expensive and time-consuming part of the job has already been done for you. That is the whole point of the model.
What you still own: turning up and selling.
What Each Route Really Costs
Cost Per Lead Is A Vanity Metric
The number that decides whether your year is profitable is cost per install, and it has to include your own team’s time.
Take 100 shared leads at £25, so £2,500. Reach 60 of them across three attempts each, sit in front of 20, and sell 6. That is £417 per install on paper. Now add roughly 25 hours of calling and follow-up, two wasted trips to houses where only one partner was home, and the fact that all six of those sales were won against two other live quotes. Load the sales time in at even a modest hourly rate and your true figure is comfortably north of £500, with your margin squeezed on every job.
Now take 20 booked qualified appointments at £150, so £3,000. Sit in front of 18 and sell 6, and you are at £500 per install, with no dialling, no wasted trips, and no competing quote sitting on the kitchen table. If exclusivity lets you hold even £300 more margin on each of those six jobs, the appointment route has paid for itself twice over.
Run The Numbers On Your Own Conversion Rates
Take your last three months, work out what each source really cost per completed install, and include the hours. If a supplier will not give you the figures you need to do that calculation, that in itself is useful information.
How To Judge The Best Solar Lead Generation Companies
Every supplier says their leads are qualified. The word means very little on its own, so ask for specifics.
Five Questions Worth Asking Before You Spend
- Where does the demand come from? Own consumer brands and funded campaigns are a different proposition from bought-in data.
- Exclusive or shared, in writing? If shared, how many companies, and are they in my postcode?
- What are the qualification criteria? Homeowner status, credit position, roof suitability, electricity spend and all decision makers present should be on the list.
- Who makes the calls? In-house UK agents on recorded lines, or an outsourced dialler that nobody monitors.
- What happens if the appointment does not stand up? Ask for the replacement or credit policy in writing.
Compliance Is Your Problem Too
If a homeowner complains about how they were contacted, your brand is the one they name. Under UK direct marketing rules, consent has to be freely given, specific and informed, and people have an absolute right to opt out at any point. (Ask any supplier to show you the form the homeowner completed, the consent wording they agreed to, and how opt-outs are handled.
How Watts Marketing Books Exclusive Solar Appointments
Watts Marketing has booked more than 255,000 solar appointments since 2015, contributing to over £955 million of partner revenue, backed by more than 20,000 Trustpilot reviews across the group. Booked qualified appointments are the only product, which is why the whole operation is built around the part everyone else hands back to you.
Demand We Create Ourselves
Watts owns and funds the consumer brands and campaigns behind every enquiry, across Google, Facebook, organic search and referrals. These are proactive enquiries. The typical homeowner is interested in solar but has not started ringing round for quotes, so your salesperson frames the conversation rather than arriving fourth in a price war.
Qualified By People, On Recorded Lines
Every enquiry is called by UK-based agents in-house before anything reaches your diary. Homeowner status is verified, and credit is screened for CCJs, IVAs and debt management arrangements. Roof suitability and shading are checked, along with current electricity spend and whether the property is listed or in a conservation area. Agents confirm that all adults involved in the decision will be there at the time booked. The compliance team reviews recorded calls every week, and any booking that does not meet the brief is replaced or credited.
One Installer, Every Time
Every solar appointment goes to a single installer. The homeowner is not sold to a competitor and is not weighing your quote against two identical ones. The saying at Watts is “if you succeed, so do we”, because your ability to buy more appointments depends on you making sales. No supplier can guarantee the sale, but a qualified, properly briefed, exclusive appointment is the fairest fight your sales team is going to get.
Live In Days, With No Contract
Campaigns go live within three days of sign-up; there is no tie-in, and you can start on a small volume and scale once your own numbers prove it out.
The Watts Way
Watts Marketing does one thing: book qualified appointments, confirmed with the homeowner and placed straight into your sales calendar. There is no data file to work through, no list of enquiries to chase, and no hope that somebody answers on the fourth attempt. Your salesperson opens their diary, sees a date, a time and a full brief on the homeowner, and drives to a house where both decision makers are expecting them. Exclusivity works the same way, and it is worth being precise about the word, because across this industry “exclusive” often still means the same homeowner is sitting with two or three other installers. Every appointment booked by Watts goes to one company. One installer, one quote, one conversation at that kitchen table. The homeowner is never resold, never passed on, and never comparing your price against an identical offer that arrived the same morning.
Ten Years Of Getting This Right
Since 2015, more than 255,000 solar appointments have been booked through Watts Marketing, contributing over £955 million in revenue for partner installers, alongside more than 545,000 appointments across double glazing, heat pumps, boilers and insulation. That volume is only possible because the demand is created in-house rather than bought in, and because every enquiry is qualified by UK-based agents on recorded lines before it reaches anybody’s diary. The compliance team reviews recorded calls every day, and any appointment that does not meet the brief agreed with you is replaced or credited. Campaigns go live within three days; there are no contracts, and installers can start on a small volume and scale once their own figures prove it out. More than 20,000 Trustpilot reviews from homeowners sit behind the consumer brands that generate the work, which is the part your sales team benefits from before they even knock.
Bringing It Together
Finding solar interest in the UK is not the hard part. The market is at record volumes, the VAT deadline in March 2027 gives homeowners a reason to move, and export payments give your team a stronger savings story than they had two years ago. The hard part is turning that interest into a salesperson sitting in front of two homeowners who own the house, can afford the system, have a suitable roof, and are expecting the visit.
Judge every option on cost per install rather than cost per lead, insist on exclusivity in writing, and ask any supplier to prove how their qualification works before you commit a budget. Measured that way, the case for exclusive booked qualified appointments makes itself, because it is the only route where your sales team spends the week selling instead of dialling.
To talk through volumes, postcodes and qualification criteria for your business, call the Watts Marketing team on 01603 971808 or get in touch through the website. Live within three days, no contracts, and every appointment yours alone.