Solar quote calculator for installer websites
In short
Brift adds a solar quote calculator to an installer’s website: the visitor picks a system size, sees an installed price range, and the AI agent answers questions about roofs, batteries and financing before booking a consultation. It is built from the installer’s pages in 60 seconds.
Try the calculator
Example using published average prices
Published 2026 per-watt averages, before incentives. The 30% federal residential credit no longer applies to homeowner-owned systems placed in service after 2025.
Put this calculator on my site7-day free trial, live in 60 seconds
What your visitors ask before they call
- How much does an 8 kW system cost installed?
- Is the federal tax credit still available?
- Do I need a battery?
- How long until it pays for itself?
- Can you install on a tile roof?
What the calculator asks
- System size (kW)
- Priced per watt; size is set by the household’s annual usage.
- Roof type and layout
- Tile, shading and multiple planes add labor.
- Battery storage
- Quoted separately and can add a large share of the total.
- Electrical upgrades
- A main panel upgrade is a common extra line.
Price ranges for the trade
The calculator never shows a firm price: a range, then the next step you choose (booking, call-back, detailed quote).
| Option | Range | Source |
|---|---|---|
| Roof-mounted, grid-tied system | $2.41 – $3.34 / kW | SolarInsure |
Published 2026 per-watt averages, before incentives. The 30% federal residential credit no longer applies to homeowner-owned systems placed in service after 2025.
Example conversation
VisitorOur bill is about $180 a month. How big a system would we need?
AgentUsually somewhere around 7 to 9 kW for that usage. Which way does your roof face?
VisitorSouth, asphalt shingles, no shade.
AgentThat’s a good roof for solar. Here’s the installed range for 8 kW. Want a free design based on your last 12 bills?
Illustrative example: on your site, the agent answers with your prices and timelines.
What you receive
A lead that arrives with the project, the range shown and the visitor’s contact details, by email and in your dashboard with a summary of the conversation.
Setup
Paste your website URL: Brift reads your pages and builds the agent and the calculator in 60 seconds. Then paste one script tag once (WordPress, Wix, Squarespace, Webflow, GoDaddy or any site). Updates publish without touching your site again.
Custom build, calculator builder or Brift
| Custom-built calculator | Calculator builder | Brift | |
|---|---|---|---|
| Cost | Often $250–$700 one-off | From about $18/month | $79/month after a 7-day trial |
| Setup | Days to weeks | You build the formulas | 60 seconds, from your website |
| Answers questions | No | No | Yes, 24/7, with your information |
| Price updates | Back to the developer | Edit the formulas | In the studio, published instantly |
Sources: a published custom calculator offer on Contra, and ConvertCalculator’s starting price on Capterra. Contra — instant price calculator for your website · Capterra — ConvertCalculator pricing
Pricing
Brift Unlimited: $79/month after a 7-day free trial, or $53/month billed annually ($632/year). Unlimited conversations.
FAQ
Does the calculator account for incentives?
It shows the price before incentives. The agent explains the programs you describe on your site, without promising amounts.
Can I use my own price per watt?
Yes. Set it in the studio; Brift also reads pricing you publish on your pages.
Will it book consultations?
Yes. Pick the goal (consultation, call-back or form) and the agent drives every conversation to it.
What does it cost?
$79/month after a 7-day free trial.