Interprogram
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Case Study

Local Plumber Website Rebuild

Lighthouse Score
22 → 98
Monthly Leads
+40%
Spam Rate
Fixed
Before

"Slow WordPress site (5.8s load), generic template, broken mobile layout."

PRE
After

"Instant load times (0.8s), conversion-focused design, 100% mobile perfect."

NEW

The Challenge

Rapid Plumb was using a legacy WordPress site that was slow and difficult to navigate. Load times of over 5 seconds and a broken mobile layout were causing potential customers to leave before the page even loaded.

Additionally, their email system had configuration issues. Incorrect SPF and DKIM settings meant that important quote requests were being sent to spam, affecting their primary channel for new business.

The Transformation Strategy

1

High-Performance Migration

We rebuilt the entire site using Next.js for optimal speed and reliability. Every part of the new site was optimized for fast load times and a seamless mobile experience.

2

Local Market Visibility

We implemented LocalBusiness Schema and localized SEO meta-data. This helped ensure that search engines correctly understood Rapid Plumb's service areas and offerings.

3

Infrastructure Hardening

We performed a full security and deliverability audit of their email system. By correctly configuring SPF, DKIM, and DMARC, we improved their sender reputation and ensured that emails reached the inbox.

Results

Performance Overhaul: Lighthouse scores improved significantly, reaching a near-perfect 98.

Lead Generation: Experienced a 40% increase in qualified form submissions within the first 30 days.

Reliable Communication: Mail deliverability was fully restored, ensuring no more missed quote requests.

The Outcome

"Interprogram took the tech burden off our shoulders. Our site is faster than all our competitors, and the phone hasn't stopped ringing."

Scope Delivered

  • Complete Website Rebuild
  • Local SEO & Schema Implementation
  • Google Workspace Security Audit
  • SPF/DKIM/DMARC Setup
  • Contact Form Spam Protection

Stack + Tools

Next.jsTailwind CSSResendVercel

Results Snapshot

  • +40% conversion rate
  • Lighthouse score 22 to 98
  • Spam rate fixed

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