A renovation is the cheapest point in a property's life to improve its energy efficiency, since walls, floors and ceilings are already being opened up. Adding insulation or upgrading services after the fact costs significantly more once everything is finished and decorated. Here is what is worth prioritising while the work is already underway.
Insulation: The Highest Return for the Cost
- Loft insulation – often the cheapest upgrade with the fastest payback, particularly in older properties where it has never been topped up to current recommended depths
- Cavity wall insulation, where the property has a cavity wall construction suited to it
- Insulating a rear extension or loft conversion to current building regulations standards, which happens automatically as part of the build but is worth confirming with your builder rather than assuming
- External wall insulation on solid-wall period properties, though this needs to be done carefully to avoid trapping moisture, particularly relevant to the older cottages common around Rutland and South Leicestershire
Windows and Doors
Replacing old single or early double glazing during a renovation, rather than as a standalone project later, avoids paying twice for scaffolding, access and making good around the frames. Modern double or triple glazing significantly reduces heat loss and draughts, and on period properties there are slimline double-glazed options designed to preserve the appearance of original timber frames where planning constraints apply.
Heating Systems
If you are already replumbing as part of a renovation, it is worth reviewing whether your current heating system suits the finished property. Underfloor heating is far easier to install while floors are already being taken up. Heat pumps are increasingly viable for well-insulated East Midlands homes, though they suit a fully insulated, well-sealed property far better than one with poor fabric efficiency, which is another reason to tackle insulation and heating together rather than separately.
Ventilation Matters as Much as Insulation
A better-insulated, better-sealed house holds moisture differently to an older, more draughty one. Proper extraction in bathrooms and kitchens, and in some cases mechanical ventilation with heat recovery in larger renovations, prevents the condensation and damp problems that can follow when a house is made more airtight without addressing ventilation at the same time.
What This Means for Your Budget
None of this needs to double your renovation cost. Adding proper loft insulation, upgrading a handful of windows, or specifying underfloor heating while pipework is already exposed typically adds a modest percentage to a project's overall cost, against energy savings that continue for decades.
If you are planning a renovation and want to build in efficiency improvements without derailing your budget, get in touch. We will flag the sensible opportunities specific to your property during the survey.