Homeowners chasing lower energy bills are not always spending where the savings are strongest, according to new research that points to a growing advisory gap across the retrofit market and an opening for the UK glazing trade.
The survey of 500 UK tradespeople, carried out for energy comparison service Uswitch, suggests that households are often drawn towards visible, high value improvements such as heat pumps, solar panels and replacement glazing, while tradespeople are more cautious about what they recommend and how quickly the work will pay back.
For window companies, the figures are particularly striking. Double and triple glazing are being requested by 25% of homeowners, but recommended by only 16% of tradespeople. That nine point gap suggests public interest in better performing windows is running ahead of professional advice, even as installers face one of the most receptive consumer markets for years.
The reason appears to sit in the tension between comfort, perception and return on investment. New glazing is one of the most recognisable energy upgrades a homeowner can make. It is tangible, easy to understand and associated with warmer rooms, reduced draughts and lower noise. Yet Uswitch estimates that window glazing for a semi detached house can cost around £12,000, with savings of £2,800 to £3,200 over a 20 year lifespan. For a tradesperson focused on bill reduction, that makes it harder to place glazing above lower cost measures.
This is where the opportunity lies. Rather than treating the data as a warning sign, installers can use it to sharpen the conversation. The research shows homeowners already want double and triple glazing. The task is to explain where it fits in a whole house plan, when triple glazing is justified, where high performance double glazing is more proportionate, and how airtight installation, ventilation, frame choice and glass specification affect the outcome.
The wider retrofit picture is equally uneven. Heat pumps were the most commonly requested upgrade, at 32%, followed by solar panels at 28%, despite upfront cost being cited as the biggest barrier by 66% of homeowners. Solar panels may take around 10 years to pay back, while ground source heat pumps can cost about £29,000.
Quick wins remain underused. Draught proofing is requested by just 5% of homeowners and recommended by only 8% of tradespeople, despite potential annual savings of £85 to £95. Smart heating controls are requested by 14%, although costs of £410 to £550 can be recouped within four to five years.
The findings suggest successful installers will be those who move beyond selling windows as a standalone purchase. Nearly three quarters of tradespeople say homeowners do not always follow their advice. For glazing firms, trusted guidance is becoming as valuable as the product.
Why This Matters: New windows and doors should not be judged on energy savings alone, although those savings remain an important part of the case. Homeowners are clearly interested. Installers now need to communicate the full set of improvements, from security and aesthetics to comfort, smart locking and long-term property value.






