How to Get Free Solar Quotes Online (Without Spam Calls)

You decided to explore solar. Within an hour of googling "free solar quote," your phone blows up with six unknown numbers — that is the old lead-generation playbook.

In 2026, homeowners expect what they get for insurance or mortgages: submit once, compare written quotes, choose on your timeline. Solar can work the same way.

Key takeaway: Prepare your bill, roof basics, and address → request quotes through a verified marketplace → compare three written bids before anyone sets foot on your roof.

What you need before requesting quotes

Gathering this upfront shortens the process and improves quote accuracy:

Information	Why it matters
Recent electricity bill	Usage (kWh/month), rate structure, address
Roof type	Tile, metal, flat — affects labour
Home ownership	Owner vs landlord approval
Rough roof age	May need reroof first
Shading	Trees, chimneys — drives inverter choice
Future loads	EV, pool, battery plans

You do not need a site survey to get a ballpark — but serious installers will want a roof check before final price.

Step 1 — Estimate savings yourself

Before talking to installers, model whether solar is in the right ballpark:

1. Enter bill or usage into a solar calculator
2. Note recommended system size (kW) and payback range
3. Use that to spot quotes that are absurdly high or suspiciously low

Try the Volts calculator →

Step 2 — Request verified quotes (not lead lists)

Traditional sites sell your contact info to multiple buyers. Everyone calls at once; the race is who closes you fastest — not who quotes best.

Volts Solar Marketplace works differently:

1. You submit a quote request with property and usage details
2. Verified installers in your area review the request
3. Installers unlock the job when they are serious about quoting — using a credit model, not bulk lead purchases
4. You receive proper proposals to compare — on your schedule

No subscription for homeowners. No paywall to see if solar might work.

See how Volts works →

Step 3 — Compare quotes fairly

When proposals arrive, line them up on:

• System size (kW) and estimated production (kWh/yr)
• Equipment list — panel and inverter models
• Gross and net price after rebates
• Warranty — workmanship vs manufacturer
• Timeline — survey to energisation
• Who handles permits and grid application

Reject any quote that skips production estimates or pressures same-day signature.

Step 4 — Site survey and final contract

Online quotes are indicative. After you shortlist:

• Roof inspection confirms mounting and electrical path
• Final price may adjust for panel upgrade, trenching, or main switchboard work — with written change order
• Contract should match equipment models on the quote

Never pay 100% upfront. Typical schedules: deposit at contract, progress at install, balance at commissioning.

What a good online quote request includes

Strong quote requests give installers enough to price accurately on first pass:

• Service address and roof access notes (single storey, two storey, steep pitch)
• Monthly kWh or bill amount in local currency
• Roof material — tile, metal, slate, flat membrane
• Electrical phase where relevant (single vs three-phase in AU/MY markets)
• Photos of switchboard and roof (optional but speeds survey)

Volts collects these fields up front so installers do not need a phone interrogation before quoting.

Online quotes vs in-home sales visits

Approach	Pros	Cons
Online-first (Volts)	Compare written bids, less pressure, privacy	Still need site survey before final price
In-home sales visit	Hands-on roof look	High-pressure tactics common in some markets
Lead aggregator forms	Fast to fill	Phone spam from five companies

Online-first does not skip physical survey — it puts survey after you choose finalists, when your time is well spent.

Timeline from request to install (typical)

1. Day 0–2: Submit request; receive indicative proposals
2. Week 1–2: Site survey and revised fixed quote
3. Week 2–4: Permits and utility interconnection paperwork
4. Week 4–8: Install and commissioning

Timelines vary by country and permit backlog — US urban counties can run longer; Australian metro installs are often faster.

Privacy and data — what to ask

Before submitting anywhere:

• Who receives your contact details?
• Can you pause or delete your request?
• Is data sold to third-party lead brokers?

Volts shares details with installers only when they unlock your verified request — not sold as bulk lists.

Frequently asked questions

Are online solar quotes really free for homeowners?
On Volts, yes — homeowners pay nothing to request and compare quotes.

How many quotes should I get?
Three written quotes on the same production assumptions is the industry standard sweet spot.

Can I get quotes without giving my phone number?
Prefer platforms that communicate via email/in-app until you choose an installer.

Do online quotes include battery options?
Request battery as a line item if interested — otherwise quotes assume solar-only.

How to avoid spam if you already clicked the wrong site

• Answer unknown numbers with "put it in writing" — serious installers will email
• Use one primary marketplace (Volts) instead of five comparison forms
• Register on Do Not Call lists where available — not foolproof but helps

Who Volts is for

Homeowner	Installer
Free quote requests	Pay per unlock — no cold-call lists
Compare vetted pros	Serious leads only
US, UK, AU, CA, EU paths	Join as installer →

Ready when you are

volts-solar.com is live for homeowners in the US, UK, Australia, Canada, and Europe. Use the calculator to estimate savings, submit one verified quote request, and compare installer proposals without cold calls.

Installers can join Volts to receive matched requests in their service areas.

Next step: Get free solar quotes →

Related: How to choose a solar installer · Is solar worth it 2026