How SUNROOOF Crossed INR 15 Crore Without Paid Advertising
What CX Leaders Can Learn From Product-Led CX Growth: What happens when the product becomes your loudest marketing channel?
The marketing dashboard is unusually quiet.
No spikes from paid campaigns.
No ROAS graphs to explain.
Above all, no CAC panic emails from finance.
Yet the revenue line keeps rising.
Installations increase. Referrals accelerate. Customers arrive already convinced.
This is not a thought experiment. This is SUNROOOF. In fact, this is Product-Led CX Growth.
In a market where brands burn budgets to buy attention, SUNROOOF crossed INR 15 crore in revenue without spending a single rupee on paid advertising—no Meta, no Google, no billboards, no performance media.
For CX and EX leaders battling siloed teams, fragmented journeys, and rising acquisition costs, this story is more than inspiring.
It is instructional.
This article unpacks how product-led CX growth actually works, why SUNROOOF’s approach succeeded, and how CX leaders can operationalise similar principles—without chasing vanity metrics.
What Is Product-Led CX Growth—and Why CX Teams Need It Now?
Product-led CX growth is a strategy where customer experience, not marketing spend, becomes the primary driver of acquisition, retention, and advocacy.
Instead of pushing demand, the product and its experience pull customers in organically through visibility, trust, and outcomes.
For CX teams, this matters because:
- Paid acquisition costs keep rising.
- Customer trust keeps declining.
- Experience failures now spread faster than ads.
SUNROOOF’s journey proves that CX is no longer a support function.
It is a growth engine.
Why Did SUNROOOF Reject Paid Advertising Entirely?
SUNROOOF made a deliberate strategic choice: invest in product and experience before investing in reach.
This decision rested on three beliefs:
- A premium product must demonstrate value, not shout it.
- Customers trust lived experience more than claims.
- Every installation can function as a showroom.
Rather than buying impressions, SUNROOOF designed for visibility through usage.
Each ceiling transformed into a skylight became:
- A conversation starter
- A referral trigger
- A proof-of-value moment
The product did the storytelling.
How Did Each Installation Become a Growth Channel?
SUNROOOF treated every customer environment as a live CX asset.
Unlike digital-only products, SUNROOOF’s wellness lighting system is:
- Physically visible
- Emotionally impactful
- Socially shareable
This created a powerful loop:
- A customer installs SUNROOOF.
- Visitors experience the transformation.
- Curiosity turns into trust.
- Trust turns into inbound demand.
No campaign can replicate this credibility.
From a CX lens, this is experience-led acquisition—where the journey begins before a prospect becomes a lead.
What CX Problem Does SUNROOOF Solve at Its Core?
SUNROOOF solves a modern emotional problem: indoor living without sunlight.
Urban homes, basements, hospitals, offices, and windowless spaces disconnect people from natural light. This affects:
- Sleep cycles
- Mood regulation
- Focus and productivity
- Overall well-being
SUNROOOF’s technology recreates natural sunlight indoors using advanced optics, nanotechnology, and AI.
But the CX insight goes deeper.
Customers are not buying lighting.
They are buying how a space feels to live in.
This emotional clarity simplified everything:
- Messaging
- Onboarding
- Expectation-setting
- Advocacy
CX teams often struggle because they optimise touchpoints without clarifying the emotional job-to-be-done.
SUNROOOF started there.
What Role Did Customer Advocacy Play in Scaling to INR 15 Crore?
Customer advocacy replaced traditional marketing functions.
SUNROOOF did not run referral programs with incentives.
They focused on experience consistency.
Key advocacy drivers included:
- Reliable installation quality
- Predictable post-install support
- Honest storytelling without exaggeration
- No discount-led pressure selling
Customers advocated because:
- The product exceeded expectations.
- The brand did not overpromise.
- The experience felt premium at every stage.
As Ishat Jain, Co-Founder of SUNROOOF, explains, customers became ambassadors because the experience was genuinely world-class—not engineered for virality.
For CX leaders, this reinforces a truth:
Advocacy is an outcome, not a tactic.
How Does This Challenge Traditional Marketing-CX Silos?
SUNROOOF collapsed the boundary between product, CX, and marketing.
In many organisations:
- Marketing owns acquisition.
- CX owns retention.
- Product owns features.
This creates journey fragmentation.
SUNROOOF reversed the structure:
- Product design drove acquisition.
- CX delivery drove conversion.
- Customer outcomes drove marketing.
There was no handoff.
The journey was continuous.
This alignment eliminated:
- Message-experience mismatch
- Overpromising campaigns
- Reactive service recovery
For CX leaders, this is a blueprint for breaking silos without restructuring org charts.
What Framework Explains SUNROOOF’s Growth Model?
The Product-Led CX Flywheel
SUNROOOF’s growth can be explained using a four-stage CX flywheel:
- Outcome-Centric Product Design
Solve a real, felt problem with visible impact. - Frictionless Delivery Experience
Installation, onboarding, and support reinforce trust. - Ambient Visibility
The product lives where others can see and feel it. - Organic Advocacy Loop
Customers become storytellers through lived experience.
Unlike funnels, flywheels compound.
Each satisfied customer reduces future acquisition effort.
What Common CX Pitfalls Did SUNROOOF Avoid?
SUNROOOF succeeded partly because of what it did not do.
Common traps they avoided:
- Chasing scale before consistency
- Discounting to inflate revenue
- Over-indexing on vanity metrics
- Outsourcing CX ownership
The INR 15 crore revenue was profitable and organic, not inflated by ad-led discounts.
For CX leaders, this reinforces the danger of:
- Measuring growth without margin
- Celebrating reach without retention
- Scaling noise instead of trust
Why Is This Model Especially Relevant in India’s CX Landscape?
India’s premium consumers are becoming value-literate, not visibility-driven.
SUNROOOF’s success reflects a broader shift:
- Consumers research deeply.
- Peer validation matters more than ads.
- Trust compounds faster than awareness.
As acquisition costs rise across platforms, experience-led growth becomes economically superior.
For Indian CX teams, this is not aspirational.
It is necessary.
How Can CX Leaders Apply This Without a Physical Product?
Product-led CX growth is not limited to hardware brands.
Service, SaaS, and platform teams can apply the same principles by:
- Making outcomes visible early
- Designing for shareability within workflows
- Turning customers into proof points
- Reducing friction across handoffs
The core shift is mindset:
Stop asking how to acquire customers.
Start asking how customers acquire others for you.

Key Insights for CX and EX Leaders
- CX is a growth lever, not a cost centre.
- Product clarity simplifies journeys.
- Advocacy scales better than advertising.
- Consistency beats creativity in premium markets.
- Experience visibility reduces trust gaps.
SUNROOOF did not outspend competitors.
It out-experienced them.
Frequently Asked Questions (FAQ)
Can product-led CX growth work in crowded categories?
Yes. Differentiation comes from experience consistency, not feature novelty.
Is paid advertising incompatible with product-led growth?
No. But paid media should amplify proven experiences, not compensate for weak ones.
How long does organic CX-led growth take?
Longer upfront, faster compounding over time.
What KPIs replace CAC in this model?
Referral rate, repeat usage, time-to-advocacy, and experience consistency scores.
Does this require premium pricing?
Not always. It requires premium experience discipline.
Actionable Takeaways for CX Professionals
- Define the emotional outcome your product delivers.
Document it clearly and align every journey stage to it. - Audit experience consistency before scaling.
Fix delivery gaps before adding acquisition fuel. - Design for visible impact.
Make outcomes observable to non-customers. - Replace referral incentives with reliability.
Trust scales better than rewards. - Collapse marketing and CX narratives.
Ensure what you promise is exactly what you deliver. - Track advocacy-leading indicators.
Measure moments that trigger storytelling. - Protect premium experience from discount erosion.
Short-term spikes damage long-term trust. - Treat every customer as future media.
Build experiences worth talking about.
SUNROOOF’s journey is not about rejecting advertising.
It is about earning attention instead of buying it.
For CXQuest readers navigating AI gaps, siloed teams, and fragmented journeys, this story offers a reminder:
When experience leads, growth follows—quietly, credibly, and profitably.
