Is Your Home Losing Heat? Here's How We Fix It

You walk into one room and it’s warm and cosy. The next room feels like an icebox. You crank up the heater, but the electricity bill keeps climbing. Sound familiar?

At Unitech SA, we’ve seen this story play out over and over — and it almost always comes down to one thing: hidden heat loss.

Heat escapes from homes in more ways than most people realise. And without the right insulation (in the right places), your home could be working against you — costing you comfort and cash.

Let’s take a look at the top places your home might be losing heat… and how we fix them.

1. The Roof: Where Heat Disappears Fastest

Your roof is the biggest heat thief in your home. In fact, it can account for up to 40% of total heat loss. Heat naturally rises — and if your ceiling isn’t properly insulated, it’s like leaving a window open 24/7.

How we stop it:
We install high-performance ceiling insulation that keeps the warmth in during winter (and the heat out in summer). If your insulation is old, sagging or patchy, we remove and replace it with modern, energy-efficient materials.

2. The Walls: Big Surfaces, Big Opportunity

Walls take up a huge surface area — but many homes, especially older ones, have zero insulation inside them. In winter, these walls soak up your heat and let it bleed outside.

How we stop it:
We offer internal and external wall insulation solutions, depending on your home’s structure. We also work insulation into renovations, extensions, and even dry walling projects.

3. Windows and Doors: Tiny Gaps, Huge Impact

Think about the gaps around your windows and doors. Even a 2mm crack can let in icy air — and let your expensive heat escape.

How we stop it:
We check for air leaks, install weather stripping, and can even upgrade to better-sealed doors and windows. We also work alongside glaziers to recommend double glazing for maximum thermal control.

4. The Floors: Cold from the Ground Up

Ever felt like your feet are freezing, no matter what you do? That’s because a lot of homes have no insulation in the floor, especially if they’re built on stilts or have crawl spaces.

How we stop it:
We insulate under floors where possible or recommend clever retrofit options like insulating screeds or underfloor panels during renovations.

5. Construction Gaps: The Invisible Heat Highways

Heat also escapes through all those little holes around plumbing pipes, light fittings, cornices and roof eaves. If your home wasn’t sealed correctly during construction, you’re likely losing heat through these gaps.

How we stop it:
Our team does a full heat-loss inspection. We identify leaks and use proper sealants, insulation boards and foams to close them up — the right way.

Why It Matters

Fixing heat loss isn’t just about staying warm. It’s about:

Lowering your electricity bill (especially in load shedding season)
Reducing reliance on heaters and aircons
Improving comfort in every room
Protecting your home from damp and moisture
Boosting resale value

We Don’t Just Add Insulation — We Solve the Whole Problem

At Unitech SA, we approach insulation like detectives. We don’t just throw insulation into your roof and call it a day. We look at how your home is built, where the energy is going, and what makes sense for you.

Whether you’re building, extending, or trying to fix a cold or draughty home, we bring real construction expertise to the table — not just quick fixes.

Want to Know Where Your Home Is Leaking Heat?

We offer site assessments and renovation consultations that help you get to the bottom of your energy loss — and we show you the smartest way to fix it. No pressure, just practical advice that works.

Let’s help you stop the leaks, stay warm, and save money.

See our full portfolio of home renovations and building projects here.