Solar Panel Quotes UK 2026: How to Get and Compare the Best Prices

Getting a solar panel quote is the first step most UK homeowners take when seriously considering solar. But there is a big difference between a rough phone estimate from a salesperson and a detailed written proposal after a proper site survey. Knowing what a good quote looks like and what it should cost protects you from making an expensive mistake.

Solar installation prices in the UK have never been lower. A typical 4kWp system now costs £7,000 to £9,500 from a reputable MCS-certified installer, and the 0% VAT exemption on installations runs until March 2027. But prices vary by thousands of pounds between installers for the same specification, which makes getting multiple quotes and comparing them fairly essential.

This guide explains what a proper solar panel quote should include, what you should pay for different system sizes, and how to avoid the pricing tactics and pressure selling that give parts of the solar industry a bad name.

Key Takeaways

• Solar panel quotes in the UK typically range from £5,000 to £12,500 depending on system size, with 0% VAT available until March 2027
• A complete quote should include panel specifications, inverter type, labour costs, DNO application fees, monitoring setup, and warranty details
• Always request quotes from at least three MCS-certified installers to compare pricing and ensure fair value
• Be wary of suspiciously low quotes or pressure tactics. The best quote isn’t always the cheapest one
• Ask detailed questions about panel brands, inverter types, warranties, and payment terms before making your decision

What Does a Solar Panel Quote Actually Include?

When you receive a solar panel quote from an installer, it should be a detailed breakdown of everything needed to get your system up and running. A proper quote isn’t just a single figure, it’s a comprehensive package that covers multiple elements.

The quote should specify the exact solar panels you’re getting. That means the brand, wattage (usually 400-450W per panel in 2026), efficiency rating, and how many panels are needed for your system. It’ll also detail the inverter type, whether that’s a string inverter (one central unit) or microinverters (one on each panel). If you’re adding battery storage, the quote lists the battery model, capacity in kWh, and chemistry type (typically LiFePO4 these days).

Labour costs are critical. Your quote should show installation labour, electrical works, and any scaffolding required for roof access. It must include the DNO (Distribution Network Operator) G98 or G99 application fee if grid connection is needed. Setup of your monitoring system and app access should be listed. Warranty terms matter too, especially the panel warranty (usually 25-30 years), inverter warranty (typically 10 years, extendable), and workmanship guarantee from the installer (usually 10 years).

If you’re replacing old panels or removing an existing solar system, disposal and removal should be itemised. Any additional structural works, rewiring, or upgrades to your consumer unit also appear in a professional quote. A good quote is transparent about each cost element rather than lumping everything into one vague figure.

How Much Do Solar Panels Cost in the UK?

Pricing varies based on system size, component quality, and your location. As of April 2026, here’s what you can expect to pay for a complete installed system.

These figures include the panels, inverter, installation labour, and standard warranties. They do not include battery storage or scaffolding in all cases (some quotes bundle these, others charge separately).

There’s excellent news on tax: the government has extended 0% VAT on solar installations until the end of March 2027. This means you’re not paying the standard 20% VAT, which saves you £1,000-2,500 on a typical system. Make sure your quote reflects this exemption.

If you’re adding battery storage, expect an additional £4,500-7,000 for a 10kWh LiFePO4 battery system. This opens up opportunities with time-of-use energy tariffs and helps maximise your Smart Export Guarantee income by storing excess power for evening use.

How to Get Solar Panel Quotes

Getting proper quotes is straightforward if you follow a logical process. Start by assessing your situation, gather the right information, then approach installers with clear details.

First, evaluate your roof. Walk around your home and note the direction it faces (south-facing is ideal), the pitch or angle, and whether there’s shading from trees or nearby buildings. Check your roof’s condition too – if it needs repairs, mention that in your quote request as it affects the overall project cost. Gather your last three months of electricity bills so you know your average monthly consumption in kWh.

Next, identify MCS-certified installers near you. The Microgeneration Certification Scheme (MCS) is the UK’s quality standard for renewable energy installers. Any legitimate business quoting you for a residential system should be MCS-registered. Search online for “MCS-certified solar installers” in your postcode area, or use the official MCS installer finder on their website.

When you contact installers, give them clear information. Tell them your postcode, roof orientation, approximate shading (low, medium, high), current annual electricity usage, and whether you own the property outright or have a mortgage (some lenders have requirements). If you’ve already had a surveyor visit, share any notes about roof condition or structural concerns. Request a full written quote, not just a phone estimate.

Expect installers to visit for a site survey. They’ll measure your roof space, check electrical capacity, assess DNO requirements, and examine structural integrity. This typically takes 30-60 minutes and is usually free for reputable installers. After the survey, they’ll prepare a detailed quote.

How to Compare Solar Quotes Fairly

When three quotes arrive, resist the urge to simply pick the lowest number. Comparing fairly means checking that you’re actually comparing like-for-like systems.

Look at the panel specifications first. Is each quote using the same brand and wattage? A 400W Jinko panel behaves differently to a 400W REC panel, particularly in low light. Check the inverter type too. Are they all string inverters, or is one using microinverters (which cost more but provide better shading tolerance and monitoring)? Make sure you’re comparing the same setup.

Examine warranties closely. A 25-year panel warranty is standard, but check if that covers degradation at the standard 0.5% per year or something else. Inverter warranties vary from 5 to 15 years depending on the brand and whether you’ve paid for an extension. Most importantly, check the installer’s workmanship guarantee. This is your protection if something goes wrong with the installation itself. Ten years is standard amongst reputable MCS-certified companies.

Look at the payment options. Can you pay in full upfront, or do they require a deposit with final payment on completion? Some installers offer finance (check the APR), others don’t. If you’re planning to finance, factor this into your decision.

Now watch for common tricks. Some quotes show a huge pre-discount price (say £15,000) with a large discount making it look like £8,000 (it’s just £8,000 really). Others bundle unnecessary extras like premium monitoring or extended warranties that bump the price up artificially. Some apply pressure to decide immediately, claiming the price is only valid “today” or “this week”. Legitimate installers don’t use these tactics.

If one quote is significantly cheaper than the others, ask why. Is it a smaller system? A lesser-known panel brand? Does it lack certain features the others include? Sometimes you get what you pay for, but sometimes one company is simply more efficient. That’s worth understanding.

Questions to Ask Every Solar Installer

Before signing anything, make sure you’ve asked these ten key questions:

• Are you MCS-certified and RECC-registered? (RECC is the Renewable Energy Consumer Code, offering additional consumer protection)
• What is the total installed cost including labour, DNO application, and all extras?
• What brand and wattage are the panels, and what’s the efficiency rating?
• Will you use a string inverter or microinverters, and why does that choice suit my roof?
• What are the exact warranty terms for panels, inverter, and workmanship?
• How long does installation take, and will there be any disruption to my home?
• Do you handle the DNO G98 or G99 application, and is that cost included?
• What monitoring system comes with the install, and can I check my generation on my phone?
• What happens if something fails within the first five years?
• Can you provide references from customers in my area with similar-sized systems?

A good installer answers these clearly and without hesitation. If they brush you off or refuse to answer, that’s a red flag.

Why Three Quotes Is the Minimum

The solar installation market in the UK is competitive but not standardised. You’ll see genuine price variation between installers, sometimes as much as £2,000-3,000 for an identical system size and quality.

Three quotes gives you a realistic range. One quote tells you nothing. Two quotes might both be anomalies (one overpriced, one cutting corners). Three quotes let you spot the outliers and identify the middle ground of fair pricing in your area.

Quality doesn’t vary wildly amongst MCS-certified installers. The MCS standard ensures a baseline of competence and workmanship across the board. So the difference between quotes isn’t usually about who will do the best job, it’s about efficiency, overheads, and profit margins. One installer might be a small local team with low overheads. Another might be a larger company with more overheads but better aftercare. These differences are worth understanding, and three quotes help you see them.

Getting multiple quotes also puts you in a negotiating position. If two installers come in at £8,500 and one at £9,200, you can take that to the higher-priced installer and ask if they can improve their figure. Many will, especially if they’re confident in their quality or have capacity coming up.

Case Study: A Retired Couple in Hampshire Get Solar Quotes

Background

A retired couple owned a three-bedroom detached bungalow in Winchester with a south-facing roof angled at 35 degrees. Both were on a fixed pension and keen to cut their electricity bills. They’d heard solar was now affordable and wanted to explore it properly.

Project Overview

They received quotes from four MCS-certified installers in the Hampshire area. Quotes ranged from £6,900 to £10,200 for a 4kWp system. The variation was significant, but all four proposals included identical panel wattage (400W per panel) and string inverters from reputable brands.

Implementation

They chose the £7,400 quote from a locally-based installer with 12 years in the trade and strong customer reviews. The system comprised 10 Jinko 400W panels, a SolarEdge inverter with monitoring, and a 10-year workmanship guarantee. Installation took two days and caused minimal disruption. The couple paid 50% upfront and 50% on completion.

Results

Six months after installation, their system was generating approximately 3,500kWh per year (on track based on seasonal output patterns). Their grid import dropped by 65% during daylight hours. They’re feeding excess daytime power back to the grid and earning approximately £180 per year at the Smart Export Guarantee rate of 12p per kWh. Combined with their reduced electricity bill (they now buy far less from the grid), they estimate their payback period at around nine years, despite their relatively modest system size.

Expert Insights From Our Solar Panel Installers

One of our senior solar panel installers with over twelve years of experience shares his perspective: “Customers often think the cheapest quote is the best deal. What I actually see is that the middle quote is almost always the best value. The rock-bottom quotes usually skip corners somewhere, whether that’s inferior monitoring, cutting the warranty, or rushing the installation. The top-priced quotes sometimes reflect premium service or a brand premium that you don’t actually need. In my experience, when three quotes come in and two are similar at around £8,000 and one is £6,500, the £6,500 one worries me. I’d ask a lot of questions about what’s been left out. But if the middle quote is £8,000 and one is £8,500 and another £7,900, that’s the right range. You’re comparing genuine professionals, all offering similar quality. Then it comes down to who you trust and which company you want in your home for two days.”

Frequently Asked Questions

Summing Up

Getting solar panel quotes isn’t complicated, but it does require a bit of homework. You need to understand what’s included, know the current market price range, and be able to compare quotes fairly without being swayed by marketing tactics.

The key is to request quotes from at least three MCS-certified installers, ask detailed questions, and compare apples to apples. Don’t just pick the cheapest. A middle-priced quote from a reputable installer usually offers the best balance of cost and quality. Remember that whether solar panels are worth it depends on your individual situation, but with prices now at their lowest in a decade and the 0% VAT exemption still in place, the financial case is stronger than ever. Most UK homes break even within 7-12 years, and then enjoy free electricity for the remaining 15+ years of the panel warranty.

Updated April 2026