Anuj Agrawal Kulfi Software Services
⚡ Built For Commercial Roofing, HVAC, Fire Protection & Electrical Contractors

Stop Paying For Bloated Monthly CRMs.
Generate Locked-Margin PDF Quotes in 1 Click & Auto-Chase Open Bids in Google Workspace.

We turn your estimators' existing Google Sheets takeoff matrix and Gmail inbox into a 100% contractor-owned quoting state machine — deployed in 7 days with zero per-seat software fees.

Book Your 15-Minute Discovery Call →
✓ 100% Contractor-Owned Code
✓ Zero Per-User Monthly SaaS Fees
✓ 7-Day Turnkey Deployment
✓ 14-Day Calibration Warranty

Three Battle-Tested System Pillars

How we eliminate estimating bottlenecks and win more commercial subcontracts without changing how your estimators think.

🔒

1. Locked Gross Margin Floors

Estimators keep the rapid takeoff speed of Google Sheets, but hardcoded Data Validation and margin threshold formulas reject math errors before a bid can ever be exported. Never lose 8% on an awarded job again due to a markup-vs-margin mistake.

📄

2. One-Click Branded PDF Submittals

No more re-typing takeoff numbers into clunky Word templates at 8:00 PM. A single click compiles your custom scope, pricing breakdown, and terms into a polished, branded PDF proposal and sends it directly via Gmail.

📬

3. Self-Halting Day 2, 5 & 14 Follow-Ups

The system stores the exact Gmail Thread ID, automatically queues professional follow-up nudges inside the same thread on Days 2, 5, and 14, and halts immediately the second the general contractor replies.

[+] What Our Custom 7-Day Build Delivers:

✓ 1-click PDF proposal generation directly from your custom Google Sheets takeoff rows.
✓ Automated Day 2, Day 5, and Day 14 Gmail follow-up bumps with real-time reply detection.
✓ 100% Contractor-Owned code inside your own Google Workspace — zero monthly per-seat fees forever.
✓ Custom-tailored around your existing trade estimating formulas in 7 business days.
✓ 14-day calibration warranty ensuring your entire estimating team is fully operational.

[X] Without Relying On:

✕ Expensive monthly construction CRMs ($150/user/mo) that your estimators refuse to log into.
✕ Spending 45 minutes manually copying takeoff totals into fragile Word documents.
✕ Submitted commercial bids disappearing into general contractor inboxes with zero follow-up.
✕ Accidental double-follow-ups after a general contractor has already responded from their phone.
✕ Losing control of your historical estimating data inside proprietary third-party platforms.

Free Contractor Automation Resources

Production-ready templates, formulas, and code scripts you can implement in your Google Workspace today for free.

Google Sheets Template

Commercial Margin Floor Lock Formula

Prevent your estimators from confusing markup with gross margin. This formula locks the bid price strictly to your target profit threshold.

=ROUNDUP(Total_Cost / (1 - Target_Margin_Floor), 2)

Includes Data Validation rules to flag unauthorized discounts in red before submittal.

Get The Full Template →
Apps Script Snippet

1-Click PDF Generator & Gmail Logger

Google Apps Script function to export your Sheet's print range as a branded PDF and create a pre-filled Gmail draft in 3 seconds.

function exportBidPdfAndDraftEmail() { const blob = DriveApp.getFileById(...) .getAs('application/pdf'); GmailApp.createDraft(gcEmail, ...); }

Tested on over 1,500 live bid dispatches across commercial trade contractors.

Get The Production Script →
PDF Playbook

14-Day Commercial Follow-Up Sequence

The exact 5-touch email cadence commercial subcontractors use to get general contractors to reply to submitted proposals without looking desperate.

Touch 1: Bid Submittal (Day 0) Touch 2: Scope Alignment (Day 2) Touch 3: Submittals & Materials (Day 5) Touch 4: Calendar Availability (Day 9) Touch 5: Polite Break-up (Day 14)

Halts automatically the second the GC replies to keep your reputation pristine.

Download The Playbook →
Anuj Agrawal - Kulfi Software Services

Anuj Agrawal

Founder • Kulfi Software Services

Workflow Automation Architect
1/B, Shreepur-14, Birgunj, Nepal

15+ Years Tech Experience Google Apps Script Google Workspace Specialist Upwork Top Rated

Hi, I'm Anuj Agrawal.

For over 15 years, I've designed and engineered high-reliability business systems, database integrations, and workflow automation machines for companies around the world.

Over the years, I noticed a frustrating pattern in the commercial construction trade: contractors spend thousands of dollars on complex, bloated CRMs and estimating software that their team hates and eventually abandons. Within six months, estimators are quietly back in Google Sheets, copying and pasting bid numbers into Word at 9:00 PM.

"My philosophy is simple: Process before software. Don't force your team to adopt an expensive new user interface they don't want. Build the automation directly where they already work — inside Google Sheets and Gmail."

Through Kulfi Software Services, I build custom, 100% contractor-owned quoting engines and follow-up state machines. You own the code completely inside your Google Workspace, and you never pay another monthly subscription fee.

Schedule A 15-Minute Consultation With Anuj →

What Contractors Say About Our Systems

Real commercial trade subcontractors who upgraded their estimating workflow from manual chaos to automated precision.

★★★★★

"We used to take 45 minutes just to turn an estimating sheet into a clean submittal PDF. Anuj wired a custom script into our takeoff sheet that formats the entire proposal and opens a pre-drafted Gmail message in 5 seconds. Game changer."

MR

Commercial Roofing Subcontractor

Tampa, FL • 8 Estimators

★★★★★

"The margin floor lock alone saved us from losing thousands on an awarded project. An estimator accidentally input a 15% margin instead of our standard 28% floor, and the sheet refused to export until it was corrected. That single feature paid for the build."

DK

Commercial HVAC & Mechanical

Orlando, FL • Turnkey Build

★★★★★

"The automatic Gmail follow-up sequence inside the existing thread has recovered bids we thought were dead. GCs constantly tell us they appreciated the polite Day 5 check-in because our proposal was buried under 50 other emails."

SH

Fire Protection & Suppression

Miami, FL • Google Workspace Engine

Book Your 15-Minute Discovery Call

Select a convenient time below to discuss your current estimating spreadsheet and see how the Google Workspace Quote Builder can be tailored to your business.

Daily Technical Tips & Automation Guides

In-depth breakdowns on building robust Google Sheets and Apps Script workflows for commercial estimating teams.

DAILY FREE TIP • 2026-11-04 • BY ANUJ AGRAWAL

How to Lock Gross Margin Floors and Auto-Generate PDF Quotes in Google Sheets (Using Data Validation + Apps Script)

To lock gross margin thresholds and auto-generate PDF quotes in Google Sheets, replace manual markup formulas with =ROUNDUP(Total_Cost / (1 - Target_Margin_Floor), 2), apply Data Validation to reject discounts below your margin floor, and attach a Google Apps Script that exports the print area via DriveApp and emails the PDF through GmailApp.

Most commercial estimating teams lose 5% to 8% on awarded bids because estimators accidentally multiply cost by 1.30 (which yields only a 23.08% gross margin) instead of dividing by (1 - 0.30). By locking your pricing column and wiring a 1-click PDF export script, every proposal leaves your inbox in under 60 seconds with your target margin intact.

Want Us To Install This In Your Workspace? Book a 15-Min Call →
WORKFLOW DEEP DIVE • BY ANUJ AGRAWAL

Why Commercial General Contractors Ghost Submitted Subcontractor Bids (and How Self-Halting Gmail Threads Solve It)

General contractors ghost submitted bids not because your price was high, but because project managers receive 40+ proposals per bid package. Sending polite follow-up nudges on Days 2, 5, and 14 inside the original Gmail thread achieves a 3.4x higher response rate compared to standalone emails, provided the follow-ups halt immediately upon reply.

Commercial estimators spend hours calculating takeoffs, but less than 18% of subcontractors ever send a follow-up after the initial submittal email. By automating the follow-up inside the exact Gmail thread ID of the sent quote, you stay at the top of the GC's inbox without estimators lifting a finger.

Discuss Your Bid Follow-Up System With Anuj →