Case study · HVAC Companies · Singapore
HVAC Case Study Singapore: +165% Leads
How a 16-technician HVAC company in Sengkang grew enquiries 165% and cut cost per lead 47% in 6 months with CRM Follow-up, Local SEO and Google Ads.
Illustrative case study: the business is anonymised and the figures are modelled on typical results for this market.
HVAC Companies · Singapore
HVAC
A 16-technician HVAC company based in Sengkang, serving the wider Sengkang area and focused on chiller and VRV maintenance, plus commercial HVAC installation. Before working with us, 67% of enquiries came through Qanvast and similar paid platforms, where the same lead often went to three or four competitors. The goal was more exclusive enquiries, a lower cost per booked job and a pipeline the owner controls.
Results After 6 Months
Leads per month
+165%
Cost per lead
-47%
Marketing-sourced revenue
+241%
Return on marketing spend
12.7x
The challenge
Where the business was stuck
- Demand spikes in the first heatwave or cold snap, then drops, and most marketing is switched on too late to catch the peak.
- Replacement and new-install jobs are worth many times a repair call, but most ad budgets are spent on low-value service searches.
- Maintenance agreements are the most profitable revenue in the trade, yet few HVAC websites actively sell them.
- Peak season (demand is steady year-round) was not being planned for, so budget ran out when demand was highest.
The approach
Three services, one goal
We focused on CRM Follow-up & Remarketing, Local SEO & Google Maps and Google Ads, the three channels with the best cost per booked job for HVAC businesses in Sengkang. Every call, form and chat was tracked to a booked outcome from week one, so every decision was based on revenue, not clicks.
What we did
The technical work behind the numbers, service by service.
Service 1
CRM Follow-up & Remarketing
- Connected every form, call and chat to a CRM pipeline with automatic WhatsApp replies inside 30 seconds.
- Built a 5-step quote follow-up sequence by WhatsApp and email for quotes that had not been accepted.
- Launched remarketing audiences on Google and Meta for site visitors and quote recipients, with job-specific ads and reviews.
- Added missed-call text back and reactivated 2,400 past customers with a service reminder campaign.
Service 2
Local SEO & Google Maps
- Rebuilt the Google Business Profile: primary category corrected, 3 secondary categories added, 10 services with descriptions and a service area matched to the real travel radius.
- Published 21 suburb and area pages across the wider Sengkang area, each with local job photos, travel times and area-specific FAQs.
- Launched a review request flow by WhatsApp after every completed job, lifting review velocity from 1 to 17 new reviews a month.
- Tracked rankings on a 7x7 geo-grid around the office to see Maps visibility street by street, not just from one location.
Service 3
Google Ads
- Restructured the account into 34 single-theme ad groups by job type, with exact and phrase match only and a 698-term negative keyword list.
- Installed call tracking and imported booked jobs from the CRM as offline conversions, so bidding optimised for revenue, not form fills.
- Moved from manual CPC to Maximize Conversion Value with a target ROAS once 30+ conversions a month were flowing.
- Added ad scheduling and location bid adjustments so budget follows the hours and areas that produce booked work.
- Added click-to-WhatsApp extensions and tracked WhatsApp chats as a primary conversion.
The numbers
Before and after
| Metric | Before | Month 6 | Change |
|---|---|---|---|
| Enquiries per month | 37 | 98 | +165% |
| Cost per lead | S$187 | S$99 | -47% |
| Cost per booked job | S$670 | S$275 | -59% |
| Lead-to-job rate | 28% | 36% | +8 pts |
| Website conversion rate | 2.8% | 3.6% | +31% |
| Marketing-sourced revenue / month | S$44k | S$149k | +241% |
| Share of leads from paid directories | 67% | 16% | -51 pts |
| Median speed to lead | 201 min | 30 sec | instant |
| Keywords in the Maps top 3 | 5 | 22 | +17 |
| Search impression share | 23% | 56% | +33 pts |
Lead growth
Enquiries per month
Marketing-sourced revenue went from S$44k to S$149k a month, measured from booked installs and repairs in the CRM.
Optimisations That Moved The Numbers
- 01
Replying to new enquiries in under 30 seconds raised lead-to-booking rate from 28% to 36%.
- 02
The quote follow-up sequence recovered 5 quotes a month that would otherwise have gone cold.
- 03
Adding 3 secondary Google Business Profile categories lifted discovery searches by 33% in six weeks.
- 04
The 698-term negative keyword list cut wasted spend on jobs, DIY and supplier searches by 33%.
The 6-month timeline
From tracking to scale.
Weeks 1 to 2
Audit, tracking and baseline
Call tracking, conversion tracking, CRM connection and a full audit covering CRM Follow-up, Local SEO and Google Ads.
Weeks 3 to 6
Build and launch
CRM Follow-up, Local SEO and Google Ads live for chiller and VRV maintenance, plus commercial HVAC installation.
Months 2 to 4
Optimise
Weekly search term, call and landing page reviews. Budget and effort moved to the jobs that close.
Months 5 to 6
Scale
Expansion into Woodlands and nearby areas, plus new services with proven demand.
Illustrative case study: the business is anonymised and the figures are modelled on typical results for this market. Your results depend on your market, budget, capacity and follow-up. We share realistic forecasts in your free audit.
HVAC Companies case studies in other countries
Australia
USA
UK
Dubai
Netherlands
Ireland
Canada
New ZealandMore case studies in Singapore
Let's Discuss Your Growth
Tell us about your business. We'll reply with a plan, realistic lead volumes and costs.