Solar Panel Installer Warrington (an independent guide) › Quotes
Check a solar panel quote for your Warrington home
Most people in Warrington see two or three solar quotes and have no easy way to tell them apart. This checker puts any quote next to the government's own price data for the North West and next to what PVGIS says your roof should make here.
Warrington solar quote checker
Type in the figures from a quote you have been given. The checker compares them with official averages and with what PVGIS, the European Commission's solar model, says a roof like yours in Warrington should make. Nothing you type leaves your browser.
Enter a price and a system size to see where the quote sits.
Yardsticks: DESNZ solar PV cost data 2025/26, North West mean cost per kW (£1,800 for systems up to 4 kW, £1,627 for 4 to 10 kW; regional means include some non-domestic installs) and the UK median (£1,595 and £1,546). Output: PVGIS 5.3 for central Warrington, 14% losses. A price above or below the averages is not good or bad in itself; it is a reason to ask what is included.
The three yardsticks
1. Price per kW against the North West average
Every MCS-certified installation in Great Britain is recorded, and the Department for Energy Security and Net Zero publishes what they cost. For April 2025 to March 2026 the average in the North West was about £1,800 per kW for systems up to 4 kW, from 14,142 MCS-certified installations, and about £1,627 per kW for systems of 4 to 10 kW, across 7,673. Larger systems cost less per kW because scaffolding, the inverter, the electrical work and the paperwork are shared across more panels.
Two cautions. The regional figures are averages (means), so a few expensive jobs pull them up, and they include some non-domestic installations. The UK median, the middle price, is lower: about £1,595 per kW up to 4 kW and £1,546 for 4 to 10 kW. A typical home quote can fairly sit anywhere between the two.
| System | At the North West average | At the UK median |
|---|---|---|
| 3 kW | about £5,400 | about £4,800 |
| 3.5 kW | about £6,300 | about £5,600 |
| 4 kW | about £7,200 | about £6,400 |
| 4.5 kW | about £7,300 | about £7,000 |
| 5 kW | about £8,100 | about £7,700 |
| 6 kW | about £9,800 | about £9,300 |
DESNZ solar PV cost data, 2025/26. Prices include VAT where it applied; installed solar is zero-rated until 31 March 2027.
2. Predicted output against PVGIS
A quote should predict what the system will make in a year, worked out by the MCS method for your roof, including any shading. PVGIS, the European Commission's solar model, gives an independent figure for an unshaded roof. For central Warrington a south-facing roof makes about 930 kWh per kW a year at 30° and 940 at 40°; an east or west roof about 757 to 755 at 30°. Across the borough, from Culcheth to Stockton Heath, the figures vary by only about 1%.
If a quote's prediction is well above the PVGIS figure, ask how it was calculated. If it is well below, the installer may have allowed for shade from trees or neighbours, which is a good sign of care rather than a problem; ask what they assumed.
3. What a complete quote shows
The checklist in the tool is the minimum a homeowner needs to compare quotes and hold an installer to what they promised: an itemised price; the panel and inverter makes and models; the mounting kit and its MCS 012 certificate; an output estimate with shading stated; the grid paperwork (G98 or G99); the warranties, including whether the workmanship warranty is insurance-backed; and the deposit and payment stages. The line-by-line guide explains each one.
A worked example
Suppose a firm quotes £7,200 for a 4.3 kW system on a south-east roof at about 35°, predicting 4,100 kWh a year.
- Price: £7,200 divided by 4.3 kW is £1,674 per kW, about 3% above the North West average for 4 to 10 kW systems. Nothing alarming; ask what is included.
- Output: PVGIS gives a south-east roof in Warrington about 881 to 883 kWh per kW at 30° to 40°, so about 3,789 to 3,795 kWh for 4.3 kW. A prediction of 4,100 kWh is about 8% higher than the top of that range: ask to see the MCS calculation.
- Contents: if the quote names the panels but not the inverter, and says nothing about the mounting kit or grid notification, ask for them in writing before you compare it with anyone else's.
The example quote is made up to show the method, not taken from any real firm.
After the check
If two quotes come out close on price per kW and predicted output, choose on the things the numbers do not show: the installer's registrations and warranty backing, how clearly they answered your questions, and whether they visited and looked at your roof. Our vetting guide covers those checks. If a quote looks wrong and you cannot get a straight answer, send it to us through the form below; we reply by email.
Where to go next
Where these figures come from
Questions about checking a quote
How do I know if a solar quote in Warrington is fair?
Divide the price by the system size in kW and compare it with the North West average for 2025/26: about £1,800 per kW for systems up to 4 kW and £1,627 for 4 to 10 kW (DESNZ). Then check the predicted output against PVGIS for your roof, and make sure the quote lists the equipment, warranties and grid paperwork.
Is a quote above the average a bad quote?
Not necessarily. A tall house, a complicated roof, a battery-ready inverter or better panels can all cost more. The average tells you which questions to ask, not whether to sign.
What output should a 4 kW system make in Warrington?
On a south-facing roof at 30 to 40 degrees, about 3,721 to 3,759 kWh a year by PVGIS figures for central Warrington, before any shading. East or west roofs make about 80% of that.
Got a solar quote you are not sure about?
Send us the figures, or the question on your mind, with your Warrington postcode. The message comes to SEO-DONS LTD, the company behind this independent guide, and we answer by email. There is no charge and no obligation of any kind.
What happens next
- Fill in the form; a full postcode tells us which part of the borough you are in.
- We look at what you sent and answer by email, with the figures and sources that apply.
- What you do next, and which firm you choose, is entirely up to you.