The Challenge
A family-owned HVAC company serving the Denver metro area came to Shellback SEO with a problem familiar to most local service businesses: they had been operating for 11 years and built their entire client base through word-of-mouth referrals. When referrals slowed during the post-pandemic market correction, they had no digital foundation to fall back on.
Their baseline when we started:
- Ranking on page 3–5 for primary service keywords (“HVAC repair Denver,” “furnace installation Denver CO”)
- Google Business Profile with 6 reviews, no posts, incomplete service categories
- Website loading at 8.2 seconds on mobile (Core Web Vitals: all failing)
- Zero backlinks from local or industry sources
- No location-specific content pages beyond a single homepage
- Averaging 4–6 inbound leads per month from digital channels
Our Approach
Month 1–2: Technical Foundation & GBP Overhaul
Before publishing a single piece of content, we fixed the technical problems that were suppressing every other effort. We reduced Time to First Byte (TTFB) from 2.1s to 0.4s, implemented image compression and lazy loading to bring Largest Contentful Paint (LCP) under 2.5 seconds, and corrected 14 crawl errors that were preventing key service pages from being indexed.
Simultaneously, we rebuilt their Google Business Profile from the ground up: added 47 service items across 8 categories, wrote a 750-word business description optimized for local entity signals, uploaded 34 geo-tagged photos, and implemented a systematic review acquisition process with email follow-ups.
Month 2–4: Local Content Architecture
We built a location-based content cluster targeting every major Denver suburb they served: Aurora, Lakewood, Arvada, Englewood, Littleton, Centennial, and Highlands Ranch. Each page was 800–1,200 words of original content targeting hyper-local search intent (“emergency HVAC repair Aurora CO,” “furnace tune-up Lakewood CO”) with embedded LocalBusiness schema, FAQPage schema, and Service schema.
We also created 8 service-specific cornerstone pages (AC installation, furnace repair, duct cleaning, etc.) targeting the highest-volume commercial-intent keywords in the Denver market, each with HowTo schema where applicable.
Month 4–6: Authority & AI Optimization
We executed a local link-building campaign targeting Denver-area home services directories, the Denver Metro Chamber of Commerce, Nextdoor Business profiles, and three neighborhood association websites. We also implemented structured data across the full site to prepare for AI search visibility—ensuring the business would appear in Google AI Overviews and ChatGPT responses for HVAC-related queries in the Denver market.
Results After 6 Months
Additional outcomes at the 6-month mark:
- Ranking in the top 3 for 31 of 44 target keywords (from 0 at baseline)
- Appearing in Google AI Overviews for “HVAC company Denver” and 6 related queries
- Google Business Profile views: 4,100/month (up from 280)
- Website mobile page speed score: 87/100 (up from 31)
- Phone calls from GBP listing: 89/month (up from 12)
- Estimated monthly SEO-driven revenue increase: $18,000–$24,000
Key Takeaways
This campaign succeeded because we addressed the full stack in the correct sequence: technical health first, content architecture second, authority and AI optimization third. Businesses that skip the technical foundation and go straight to content see slow, inconsistent results. Businesses that skip content and rely only on GBP optimization hit a ceiling. The compounding effect of all three layers working together is what drove a 312% traffic increase in 6 months.
The AI Overviews appearances were a bonus that no competitor was even thinking about—giving this HVAC company a visibility advantage that is likely to grow as AI-intercepted searches increase over the next 12–18 months.
Is Your Business Next?
If you’re a local service business with strong referral reputation but weak digital presence, your situation is almost identical to where this client started. The playbook is proven. The only question is whether your competitors will execute it first.
Get a free site audit from Shellback SEO. We’ll show you exactly where you stand and what it will take to dominate local search in your market.
Call (843) 582-0690 or request your free audit.
FINANCIAL IMPACT ANALYSIS
ROI Breakdown â Denver HVAC
At 63 new digital leads per month and an estimated SEO-driven revenue increase of $18,000â$24,000 monthly, the campaign delivers a projected 12-month revenue lift exceeding $252,000. Cost per SEO-driven lead is approximately $28 â compared to $180+ for paid HVAC ads in the Denver metro market. GBP phone calls alone increased from 12 to 89 per month, a 642% lift in direct-dial inbound volume.