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Jay Clarke and Mark O'Neill are independent NatHERS assessors and upgrade coordinators.
No products to sell. No installer kickbacks.
Just impartial advice. And people to make it actually happen.
Be Honest.
You've been meaning to do this for, what - two years?
You're not lazy. You're not cheap. The system is just genuinely confusing. Here's the proof.
01
You have three quotes and zero decisions.
Each tradie told you something different. One wants to replace everything. One says start small. You're not sure who to trust, because they all want to sell you something.
02
You've read articles. Done the research. Still stuck.
Solar first? Insulation? Heat pump? It depends, apparently. On a hundred things. You need someone to just tell you clearly and transparently what to do next.
03
You're selling, quietly dreading energy questions.
Buyers are asking. Agents are guessing. You want the actual number - your NatHERS star rating - before it becomes their leverage.
Sound like you? Good. That's what Jay and Mark do.
How it works.
Simple. Four steps. Done.
01
Chat for 15 minutes. For free.
Tell us what you're working with and what's holding you back. If HomeUp isn't the right fit, we will say so.
02
We assess your home.
A full NatHERS thermal performance assessment. Get a science-based explainer of how your home performs and why it costs you what it does.
03
You get a roadmap. Not a wish list.
What to do first. What to do eventually. What's not worth doing. With realistic cost estimates, not best-case scenarios.
04
We coordinate it. Or don't. Your call.
Hand you the plan and step back. Or manage the whole thing; trades, rebates, installs, post-install check. You decide how much you want off your plate.
Services.
Pick your starting point.
A plan. The whole project. Or just the certificate. Whatever you need, there's a service that fits.
🗺️
Your upgrade roadmap
We assess your home and tell you exactly what to do, in what order, with realistic costs and payback periods. No fluff. No upsell.
Full NatHERS thermal assessment
Prioritised upgrade sequence
Realistic ROI for each measure
Rebate and incentive mapping
From $450
🛠️
Managed upgrades
We handle the whole thing. Tradies, scheduling, rebate claims, installs, post-install checks. All you have to do is open the door.
Everything in the Roadmap
Trades coordination and oversight
VEU/VEEC rebate management
Post-install performance review
Priced per project
🔎
Pre-sale rating
Get your NatHERS star rating before you list. Know what it says and what's worth fixing. Go into the sale with the facts, not a guess.
NatHERS certificate for disclosure
Current star rating report
Rating improvement analysis
Quick-win upgrade shortlist
From $450
The Honesty Bit.
We don't sell heat pumps.
Most people giving you upgrade advice have something to sell.
An installer pitches their products. A retailer has a promo running. A utility company has a "retail partnership".
We get paid by you. That's it.
No referral fees. No supplier deals. No preferred tradies who owe us a favour.
❌ Don't sell heat pumps, solar, or insulation.
❌ No commissions, kickbacks, or referral fees.
❌ No affiliation with any rebate delivery partner.
✅ Accredited NatHERS assessors. Paid by you, accountable to you
✅ The recommendation is always what's right for your home. Not what's on special.
1/3
Of global CO₂ comes from buildings. Half from homes. Your upgrade actually matters beyond your bill.
4.5★
Average star rating jump achievable in pre-1990s Melbourne homes. With the right upgrades, in the right order.
6 weeks
From first call to completed upgrade, including rebate claims, for a typical whole-home project.
Real homes. Real numbers.
Melbourne homeowners who stopped researching and started doing.
TWO YRS OF INDECISION · NORTHCOTE
$400/qtr saved.
Three conflicting quotes, two years, zero action. One assessment and a clear roadmap later: insulation, heat pumps, draught sealing. Done in six weeks.
"We needed someone to tell us what, the order, and why. Jay did that."
PRE-SALE HUSTLE · RINGWOOD
1.5★ → 6.3★
1970s home, heading to market. Three targeted upgrades; ceiling insulation, draught sealing and solar PV. Shifted the rating by almost five stars. Sold $22k above reserve.
"Buyers literally mentioned the rating in their offers."
COMFORT FIRST · PASCOE VALE
Kids sleep through winter.
Draughty weatherboard. Two small kids. The brief wasn't "save on bills", it was "make this house liveable in July." Done...but with lower running costs as an added bonus.
"We stopped thinking about bills and prioritised thinking about comfort."
Jay And Mark.
NatHERS Accredited
Licensed as assessors under CSIRO's Nationwide House Energy Rating Scheme.
Change Management
Experienced in PROSCI change management approaches, applied to real households.
Rebate expert
Advise on eligible federal, state and local rebates to reduce upfront upgrade costs.
Project coordination
Source, manage and audit trades for all energy efficiency and electrification upgrades.
Jay Clarke
NatHERS Assessor · PROSCI Change Manager · Agile project Manager
❌ Not an installer. Not a supplier.
❌ No referral fees. No preferred tradies.
❌ Not affiliated with any energy retailer.
Most assessors deliver a report and disappear.
Jay doesn't. He stays in the problem until it's actually solved, which means understanding not just what your home needs, but what's stopping you from doing it.
That's where his change management background comes in. Jay has worked with homeowners across Melbourne and regional Victoria who had all the information and still couldn't pull the trigger. Conflicting advice. Household disagreements. Life getting in the way. He's seen it all, and he knows how to get things unstuck.
He's not going to tell you what you want to hear. He's going to tell you what's worth doing, what isn't, and in what order. Then help you do it.
Mark O'Neill
NatHERS Assessor · Licensed Real Estate Professional
❌ Not an installer. Not a supplier.
❌ No referral fees. No preferred tradies.
❌ Not affiliated with any energy retailer.
Mark knows a thing or two about building value.
Mark has worked in Melbourne's residential property sector for decades, helping homeowners achieve their goals.
He also knows how to get the biggest bang for buck when it comes to energy efficient upgrades.
Looking for ways to make the home you just bought more comfortable? Want to get serious about reducing energy bills? Need advice on a full retrofit? Mark will get you there.
Free reads.
Still in research mode?
These will actually help. No product recommendations, no affiliate links, no sponsored content.
What order should I do home energy upgrades in?
UPGRADE PLANNING
Spoiler: it's not always solar first. Here's the framework Jay uses — and the reasoning behind it.
Does your NatHERS star rating actually affect your sale price?
SELLING YOUR HOME
Find out what the data says.
Is your inefficient appliance just set up wrong?
POST-INSTALL
Factory defaults almost never match your home. A short, honest guide to getting the performance you paid for.
Figure out your most impactful next step. Free.
Use the same framework we apply for every assessment.
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