What an Underperforming Website Costs You

The "Few Percent" Trap

Most contractors weigh a new website against the same quick math: "Better site, maybe 3% conversion goes to 6%, a few extra leads a month. Not enough to justify the project."

The arithmetic is right for one month and one channel. Stretched across a website's working life (typically five to ten years) and the channels it actually touches (paid, organic, GBP, AI search, referral), the same percentages produce a different number. The rest of this post is what that number looks like, what "better" has to deliver, and where the math stops working.

Your Website Is the Floor Under Every Channel

Most contractor lead-mix conversations sound like this: "I get most of my leads from referrals, then Google Business Profile, then Angi and Google Ads. The website is a small part of the picture." That framing treats the website as one channel competing with the others. It's the wrong mental model.

Almost every channel a contractor uses eventually routes through the website. A referral asks if you're legit and looks you up. A Google Maps searcher taps "Website" from the map pack. A homeowner asks ChatGPT for a recommendation, then checks your site to confirm. A paid Google Ad clicks through to a landing page. The website is the conversion surface every channel sits on top of.

When the site converts at 3%, every channel above it has to work harder to deliver a lead. When the site converts at 8% or 12%, the same channels deliver more leads from the same volume. The site is the multiplier. Improving it raises the floor under every existing channel.

What the Real Benchmarks Look Like

The honest answer to "what should my website convert at" depends on what kind of traffic is hitting it. Generic local-business sites with mixed traffic (organic, social, direct, paid) convert at 1-5%. The home services trades, measured specifically on paid-search traffic where the visitor already has high intent, convert in the 7-9% range.

For comparison: Greenworks Electric, a Seattle electrician we work with, runs around 16% visitor-to-contact across all traffic, not just paid. That's about double the home-services paid-search median and roughly five times the generic local-business baseline. It's an outlier on the high end, not a typical result, and not a reasonable target for everyone reading this. But it's also not magic. It's the result of doing a specific list of things the median site doesn't.

The Compound Math, Walked Through

Here's a worked example using a realistic mid-sized contractor. Numbers are illustrative, but the conversion rates and close rates are anchored to published benchmarks. Adjust to your own scale and the structure of the gap stays the same.

Same traffic, same close rate, same ticket size. The 5-percentage-point conversion lift produces an extra $180,000 in gross revenue per year on web traffic alone. Over five years, that's $900,000 in additional gross, before accounting for the second-order effects.

And the second-order effects are where the math gets serious:

None of these show up in a one-month projection. They all show up over five years, stacked on top of the first-order $180K/year figure above.

The New Compounding Channel: AI Search

Eighteen months ago, AI search was not a meaningful source of traffic for any small business. Today it's real, growing fast, and rewards specific things that overlap heavily with what a good contractor website should do anyway.

Two pieces of data are worth knowing, and one big caveat:

The interesting part is what AI search rewards. ChatGPT and Perplexity are looking for sites that publish specific local pricing, reference real local infrastructure (utilities, permitting authorities, codes), answer the questions people really ask, and structure information so it can be parsed and quoted. Those are the same things that drive your conversion rate up for human visitors. There's no "AI optimization" that's separate from "a website that does its job for humans."

We wrote up the specific case in How a Seattle Electrician Got a Customer Through ChatGPT. The short version: investments made for one channel pay off in the other. That's another compounding effect the "a few percent" calculation misses entirely.

What "Better" Has to Mean

The argument so far rests on an unstated assumption: that the new website is genuinely better in ways that move conversion. That's the part most agencies and template platforms skip. A redesign that prettifies the homepage but leaves every conversion-relevant flaw in place (no pricing, slow on mobile, unclear next steps, generic copy) doesn't deliver any of the math above.

Industry research backs this up: redesigns that produce 20-50% conversion lifts almost always involve structural changes to what the site does, not just how it looks. Aesthetic refreshes alone often deliver no measurable improvement.

For the math to work, the new site has to do specific jobs the old one isn't. Here's the checklist:

This is the explicit difference between "you should have a website" and "your website should do these things." Template platforms (GoDaddy, Wix, Squarespace) sell presence-as-product: the box gets checked, but most of the items above don't happen. We wrote about the GoDaddy version of this specifically in GoDaddy's Website Design Service: What You're Paying For.

What a Good Website Won't Fix

The compounding argument cuts both ways. A great website amplifies what's already there. If the operational basics aren't in place, the site amplifies the problems too.

A few things to honestly check before betting on a website upgrade: