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Commercial solar EPC companies · WhatsApp marketing

Use WhatsApp to book the survey, share the bill review and keep the owner informed.

WhatsApp marketing for a commercial solar EPC company means using the channel factory owners and plant heads already answer for survey bookings, document exchange and project updates, with every chat written into the enquiry record. GullySales sets the message wording, the permission practice and the handover from chat to the sales engineer.

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Scope, fee, reporting and term are agreed in writing after we have read your brief and spoken to you.

A solar engineer and factory manager review a rooftop installation

What WhatsApp marketing means

WhatsApp marketing is sending updates, offers and reminders to customers on the app most Indian buyers already check daily. GullySales sets up business WhatsApp, writes the message templates and keeps the list consented and current.

Also for commercial solar EPC companies

Sales and marketing for commercial solar EPC companies, the overview.

Last updated 6 Oct 2026.

For commercial solar EPC companies

Where it usually goes wrong, and what we would do.

  • “The owner shares the electricity bill on WhatsApp before anything else”

    A photograph of the bill, a roof picture and a location pin arrive on a personal phone. If the sales engineer saves them there and nowhere else, the next person to handle the file has nothing to work from.

  • “A plant head will not read a long message about solar”

    The message that gets opened is short and asks one thing: the sanctioned load, the roof type, a convenient day for the survey. Brochure-length forwards read like a broadcast and are ignored.

  • “The decision group is in a chat you are not part of”

    The owner, the finance head and the chartered accountant discuss your proposal in their own group. A clear one-page summary that can be forwarded into that group, with the saving worked out on the owner's bill, travels further than a PDF of many pages.

  • “Commissioned owners are the easiest people to message and the least messaged”

    Past customers answer a note about generation, cleaning or a second roof. Without a list of who agreed to hear from you and what they bought, nobody sends it, and the relationship returns only when a fault is reported.

What we do

What we deliver for commercial solar EPC companies.

Every deliverable, what it covers for you, and the result it is there to produce. Nothing here is an extra.

  1. A business number and shared inbox set-up

    A WhatsApp Business number for the company, with a greeting, a short catalogue of services and an agreed rule on who answers.

    Result: Enquiries land on a company number rather than an engineer's personal phone.

  2. A survey-booking message flow

    A fixed sequence of questions asking for the bill, the roof type, the location and a visit day, with the replies copied into the record.

    Result: The survey is booked with the details the engineer needs before arriving.

  3. A forwardable proposal summary

    A one-page summary for the finance head covering the bill, the proposed capacity, the saving basis and the next step, sized for a phone screen.

    Result: The owner can pass the summary into their own group without rewriting it.

  4. Permission and opt-out practice

    A note of who agreed to receive messages, for what purpose, and how an owner stops them, kept against the record.

    Result: Only agreed contacts receive project notes or offers.

  5. Messages for commissioned plants

    Short notes to past customers about performance checks, cleaning and a second roof or shed, sent to those who agreed.

    Result: Existing owners hear from you for a reason other than a fault.

How the result is measured

  • Messages delivered
  • Reply rate
  • Enquiries from WhatsApp

Recorded as a baseline before work starts, so every later report has an honest comparison.

Read the full WhatsApp marketing and automation page

What to capture or send

Send and record these on WhatsApp around a roof survey.

Electricity bill photo
Ask the owner to send the latest bill on WhatsApp, and save it to the file. It lets the engineer judge whether a survey is worth the visit.
Roof location pin
A shared location of the shed, not only an address. The survey team reaches the right gate and the file carries a point on a map.
Survey confirmation with who will attend
A short message naming the engineer and the person from the plant who should be on the roof, so the visit is not cancelled at the gate.
Proposal received check
After the proposal goes by email, a message asking whether it arrived and who else should see it. A proposal in an unopened inbox is not yet a proposal.
Commissioning photos with permission
After handover, a message with a few photographs of the finished plant, sent only to the contact who agreed to receive messages from you.

Who it is for

This is written for these commercial solar EPC companies.

  • Rooftop EPC specialists for factories and industrial units
  • Warehouse, cold storage and logistics park rooftop installers
  • Campus installers for schools, colleges and hospitals
  • Pay-per-unit (OPEX) rooftop developers
  • Open access and group captive solar developers
  • Ground-mount and solar carport contractors
  • Government and public sector tender EPC companies
  • Operations and maintenance firms adding new installations

Not for

It is not the right fit if.

  • Your factory contacts have not agreed to be messaged from the business number, and the numbers sit in engineers' phones
  • You would use WhatsApp to send general offers to a bought list of factory owners, which breaks the platform's rules and the buyer's trust

How it works

How the whatsapp marketing work runs

The work itself, in order. How an engagement starts, from your brief to a written scope, is set out on our method page.

  1. 1

    Read the chats you already have

    We read how customers write to you, which questions repeat and where a chat goes quiet. The repeated questions decide what gets automated first.

  2. 2

    Sort the list and the permission

    Contacts who asked to hear from you are separated from numbers that only sit in a phone book. We agree the wording new contacts will see before they say yes.

  3. 3

    Choose the app or the API

    One phone and a small team can stay on the ordinary app. Several people on one number, templates or a CRM link need the API through a provider, which is its own piece of setup work.

  4. 4

    Write the replies and the plan

    The greeting, away message, saved replies and handover rule are written in your words and approved by you. The message plan and its templates follow.

  5. 5

    Connect the record and test

    Each link carries its source line and each chat lands in the CRM. We test on real phones, including a customer who asks for a person.

  6. 6

    Read the unanswered questions

    A question the first reply could not answer becomes a new saved reply or a fixed handover. Stop requests are watched too, with the number's quality rating where the API is used, since both show a message plan that has gone too far.

Where this fits

Three pieces of sales work, in this order.

This work sits inside sales process design, at stage 0, foundation. The audit comes before it, and sales management keeps it running.

  1. Step 1

    Sales audit

    Find where deals are being lost and what to fix first.

    Start here if you cannot say where orders are lost.

  2. Step 2 · you are here

    Sales process design

    One written way to sell, from first enquiry to repeat order.

    Start here if every salesperson sells differently.

  3. Step 3

    Sales management

    A target, a review routine and someone who owns the number.

    Start here if the team has targets and no routine.

Tell us what you need Your brief is read before we call. Scope, fee and term in writing.

FAQ

Questions owners ask before they call.

Not here? More answers, or ask on WhatsApp.

Tell us what you need
Can we send bulk offers to factory owners on WhatsApp?
Send only to people who have agreed to hear from you, and check the platform's current rules on business messages. Unsolicited bulk sending damages the number and the name. Direct, one-to-one messages tied to an enquiry are safer and read better.
Should engineers use their personal WhatsApp with owners?
Avoid it as the only channel. Owners will save the engineer's number, which is fine, but the chat must also be written into the record. When an engineer leaves, the company should still hold the history of every open file.
Do we need the paid WhatsApp Business API?
Not at the start. The WhatsApp Business app with labels and quick replies suits a small sales team. Consider the API only when several people answer the same number and you need integration with your record, and check the provider's current terms first.
What is a good first use of WhatsApp for a solar EPC firm?
Collecting the electricity bill and a roof location pin. The owner already shares bills in chats, and these two items let an engineer decide whether a survey is worth the visit before a vehicle leaves.
How much does it cost?
There is no price list, because the work differs by business. The fee is scoped after we have read your brief and spoken to you, and put in writing before anything starts, split into our time, your media spend and production.
How long is the contract?
The term is agreed in writing after we have spoken, along with the fee and the reporting. It is never a default twelve months, and renewal is decided on the numbers against the baseline recorded at the start.
How soon will we see results?
It depends on the trade, the channel and what is already in place. After we have read your brief and spoken to you, we say what we would expect to move first and how it will be measured against the baseline. Nothing here is guaranteed.
Who will actually do the work?
The person you speak to before anything starts. We work from one office in Nagarbhavi, Bengaluru, with no account managers in between.
What do you need from us?
Your brief, and a conversation. After that, access to whatever this work touches, such as your website, your accounts or your enquiry record, and time with the people who handle your enquiries.
What if we are not happy with the work?
Tell us and the plan changes. Everything is reported against the baseline, so a number that is not moving is visible to both sides. The term is in your written scope, and the refund and cancellation policy sets out the rest.

From the blog

Further reading for commercial solar EPC companies.

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More for commercial solar EPC companies

Everything else we would do for you.

Closest to this: messaging and automation

Also for commercial solar EPC companies

Or start from the overview: sales and marketing for commercial solar EPC companies.

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