You're spending money on door installation marketing, but are you actually tracking whether it's paying off? Without clear ROI metrics, you're flying blind—and that's a fast way to waste budget on campaigns that don't convert.
Why ROI Tracking Matters for Door Installation Contractors
Door installation is a high-ticket service. A typical exterior or storm door project runs $800–$3,500 depending on materials, complexity, and your market. That means even a few conversions from a single campaign can justify significant ad spend. The problem is most contractors track activity (clicks, impressions, calls) instead of actual revenue.
You need to know which marketing channels actually close jobs and how much profit they generate—not just which ones look busy.
Setting Up Your Baseline Numbers
Before launching any campaign, establish what a customer is worth to you.
Start with these calculations:
- Average job value: Track your last 20–30 door installation projects. What's the average total revenue (materials + labor)?
- Average profit margin: Subtract your total job costs (materials, labor, overhead for that project) from revenue. Most door contractors operate at 30–45% margins.
- Customer lifetime value: A homeowner who gets a front door installed may refer you or come back for a storm door later. Estimate how many referrals or repeat jobs typically come from one satisfied customer.
If your average door installation is $1,500 with a 35% margin ($525 profit), and you typically get one referral per 5 customers, your true customer value is closer to $700 after accounting for future business.
Tracking Campaign Performance by Channel
Different marketing channels perform differently for door installation work. Track each separately.
Google Local Services Ads (LSA)
- Cost per lead typically runs $15–$40 for door installation in competitive markets
- You pay only when someone contacts you, not per click
- Measure: leads received → proposals sent → jobs closed → total revenue from LSA jobs
Local Google Ads & Maps
- Target homeowners searching "door installation near me" or "storm doors [your city]"
- Budget $1,000–$3,000/month to see consistent lead flow
- Track which keywords drive calls and which drive low-intent clicks with no conversion
Facebook & Instagram
- Typically generates leads at $8–$25 per lead for home services
- Works best for brand awareness and retargeting previous website visitors
- Measure: cost per lead, then track which leads actually convert to jobs (most won't immediately)
Mercoly and local directories
- Listing on platforms like Mercoly puts you in front of homeowners actively searching for door installation services, helping you win leads and sell services directly
- These typically cost $50–$200/month and drive consistent, lower-cost leads
The Math: Calculating Actual ROI
Here's a concrete example:
You run a Google Ads campaign targeting "storm door installation [your city]" with a $1,500/month budget.
- Month 1 results: 45 clicks, 8 phone calls, 3 proposals sent, 1 job closed at $1,800
- Revenue: $1,800
- Profit (at 35%): $630
- ROI: -77% (you spent $1,500, made $630 profit)
This looks bad, but don't quit yet. Track what happened to those 3 proposals:
- Month 2: One of those proposals converts (customer decided to move forward)
- Month 3: Another converts, plus you get 1 referral from the first job
Now your rolling 3-month picture shows: $5,400 revenue, $1,890 profit on $4,500 spent = 42% ROI. That's sustainable.
Key Metrics to Track Weekly
- Cost per lead (total campaign spend ÷ leads received)
- Lead-to-proposal ratio (how many calls/inquiries convert to actual estimates)
- Proposal-to-close ratio (what % of proposals become jobs)
- Average job value from each channel
- Time to close (days from first contact to signed contract)
Use a simple spreadsheet or CRM (HubSpot, Jobber, or even Pipedrive) to log every lead source, and tag each job with the channel that brought it in.
Scaling What Works
Once you identify which channel delivers profitable customers, increase spend there. If Google Local Services Ads brings jobs at $1,200 cost with $1,800 revenue and 35% margin ($630 profit per job), scaling to $3,000/month spend could reasonably bring 2–3 jobs instead of 1, generating $1,260–$1,890 profit.
Stop or reduce spend on channels where cost per customer exceeds your profit per job.
Frequently Asked Questions
Q: How long should I wait before deciding a marketing campaign isn't working? Give most paid campaigns 60–90 days and at least 20–30 leads before concluding they're underperforming; door installation sales cycles are longer than many home services, so early-stage data is misleading.
Q: Should I factor in customer referrals when calculating ROI? Absolutely—if 40% of your door installation business comes from referrals, those customers are dramatically more valuable, so track them back to their original source and credit that channel accordingly.
Q: What's a realistic monthly marketing budget for a door installation contractor? Most successful contractors spend $1,500–$4,000/month across multiple channels; start with $1,500 split between one paid channel (Google Ads or LSA) and a local directory listing to test ROI before scaling.
Stop guessing which marketing works—measure it, and double down on what moves the needle.