Testing · measurement · evidence
Prove which HVAC marketing works before you spend more on it
For HVAC and heating company owners across Canada who want evidence, not opinions, behind their marketing decisions.
7-day free trial · no credit card · no lock-in
- 17+ years in digital marketing
- MBA, Technology Management
- 150+ live HVAC websites
- Sedighi.ca & SAZ.ca group
Proof from real campaigns
- 500+ leads
HVACDeal.ca
- 300% ROI
CombiBoiler.ca
- 3× leads in 90 days
BCWide.ca
- 250% lead growth
CanroHeat.ca
- 400% organic traffic growth in 12 months
Roma Heating & Cooling
HVAC.Science helps heating and cooling companies find out which marketing really produces booked jobs. We fix how leads are counted, run tests that are sized for your real traffic, and use holdouts to check what your advertising adds. Every decision comes with the evidence written down.
Think of us as the measurement desk for Canadian HVAC marketing: a digital marketing and business consulting service within the Sedighi.ca and SAZ.ca group of companies, based in Vancouver, British Columbia, under Ali Sedighi, MBA. The trucks, tools and installs belong to our clients; we never touch equipment.
Why HVAC marketing needs method
HVAC demand is phone-led, seasonal and local, which makes it unusually easy to fool yourself. A cold snap can double calls in a week. A rebate program can open or close and shift demand for one kind of equipment overnight. Any change launched just before either will look like genius.
The fix is not more reports. It is method:
- Count leads once, in one agreed way, across Google Ads, GA4 and your office.
- Compare like with like, using concurrent controls instead of "this month versus last month".
- Decide how much evidence you need before you look, so the result cannot be bent to fit a hope.
Our newsroom explains each of these in plain language, with worked examples you can check on a calculator.
The method we use
We follow the four steps of the Conv.ca method, founded by Ali Sedighi: research and analysis, strategy development, implementation, and testing and refinement. Applied to an HVAC company, that looks like this:
- Research and analysis. Analytics, call listening and mobile page review to find where leads are lost.
- Strategy development. Hypotheses ranked by evidence, each with a sample size and stopping rule.
- Implementation. Variants and tracking built carefully, following Google's published testing guidance.
- Testing and refinement. Results read as intervals, guard-rail metrics checked, the next test chosen.
What we do
Four services, in the order most companies need them:
- Conversion research to find where calls and quote requests are lost.
- Measurement and call tracking setup so lead counts reconcile with your call log.
- CRO experiments to test changes with the right sample and design.
- Holdout testing to see which campaigns create jobs and which only take credit.
The services overview explains how to choose between them.
Real results from our HVAC work
We do not publish benchmarks, but we can point to named, public HVAC work by the same team:
- HVACDeal.ca produced 500+ leads at a 12:1 ROI.
- CombiBoiler.ca reached 300% ROI and 300+ monthly leads.
- BCWide.ca achieved 3× leads in 90 days.
These come from the wider HVAC.Agency portfolio. The results page explains what each one shows and what transfers to a testing program.
Who leads the work
Every test plan here is reviewed by Ali Sedighi, whose MBA is in Technology Management. His 17+ years in marketing go back to 2007 and ONE.ir, a full-service digital agency he started. The testing method on this site comes from Conv.ca, the CRO agency he founded; he also founded MyAutomation.ca and leads SAZ.ca as Founder and Managing Partner. Along the way he has built 150+ live HVAC websites. More on the about page.
Canada-wide, with regional differences
We work with HVAC companies in every province and territory. Testing windows, fuel mix, language rules and program changes differ by region, so a plan for Halifax is not a plan for Calgary. The areas hub sets out what changes where.
What you can learn here even if you never hire us
Every article in the newsroom ends with something you can use on your own. Three quick examples:
- Check whether a test is even possible. Multiply 7.84 by the variance terms and divide by the squared gap, as shown in the sample size article. If the answer is months of traffic, test something bolder.
- Stop double-counting calls. Taps on your phone number and connected calls are different measurements; never add them together.
- Adjust for the weather. Divide calls by a demand index, such as Search Console impressions for broad heating searches, before claiming a page change worked.
None of this needs software you do not already have.
Pricing and how to start
Plans follow the HVAC.Agency family pricing: from $2,998 a month, with websites from $3,500, in Canadian dollars plus GST/HST at your province's rate. A free 7-day trial comes first, with no card asked for and nothing that locks you in. Details are on pricing, and the full schedule is on HVAC.Agency's pricing page.
To start, call, text or email. Tell us what you are spending, how many calls you get a month, and the question you most want answered. We usually reply within one business day.
Services
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Conversion research and analysis
Find out where calls and quote requests are lost before anyone redesigns a page.
-
Measurement and call tracking setup
Count calls, texts and booked jobs correctly in GA4 and Google Ads, so every later decision rests on clean numbers.
-
CRO experiments and A/B testing
Run tests sized for your real traffic, with stopping rules written down before launch.
-
Holdout and incrementality testing
Learn which campaigns create new jobs and which only take credit for jobs you would have won anyway.
How it works
Measure what really happened
We reconcile Google Ads, GA4 and your office call log so lead counts mean the same thing everywhere.
Test one idea at a time
Each change gets a hypothesis, a sample size and a stopping rule written down before launch.
Decide with the interval
We read every result as a range of plausible effects and agree the next step with you. Call, text or email; you'll talk to a senior strategist.
Frequently asked questions
What is HVAC.Science?
HVAC.Science is a Canadian digital marketing and business consulting service that specializes in testing and measurement for HVAC and heating companies. The brand sits within the Sedighi.ca and SAZ.ca group, operates from Vancouver, and is run by Ali Sedighi, MBA.
Are you an HVAC contractor?
No. We do not install, repair or service any equipment. We help HVAC companies measure their marketing properly and test changes to it.
Our site is small. Can we still test?
Usually, but differently. Small sites need bold changes, cleaner metrics such as qualified calls, and designs like switchback schedules. We will tell you honestly if a test cannot be read at your volume.
Do you publish benchmarks or average lifts?
No. Benchmarks from other businesses say little about yours, and we do not invent them. We compare you with your own baseline and show the arithmetic.
What does it cost?
HVAC.Agency family plans start at $2,998 a month, and websites from $3,500, in Canadian dollars plus GST/HST by province. You can start with seven free days of diagnostics, without handing over a card, and nothing ties you in afterwards.
Who owns the data and accounts?
You do. Analytics properties, ad accounts and tracking stay in your company's name.