- HEP Heat and Air
- Condensation On Windows

Condensation On Windows
Condensation On Windows | Dehumidifier Installation | Heating and Air Conditioning | Lancing
Condensation streaming down your windows isnât just a nuisanceâitâs a sign that excess moisture is trapped inside your Lancing home, quietly encouraging mould, musty odours, and higher energy bills. HEPâs seasoned HVAC technicians tackle the root of the problem by pairing balanced heating and cooling strategies with precise dehumidifier installation. We size and fit premium whole-home units that draw damp air through a dedicated return, wring out the moisture, and send fresh, dry air back into your living spaces. The result? Crystal-clear panes, healthier indoor air, and a heating and air-conditioning system that no longer has to battle humidity.
From the first inspection to the final airflow check, youâll enjoy prompt appointments, tidy workmanship, and honest advice from a local team thatâs served West Sussex for over 35 years. Whether you live in a seaside flat or a sprawling family house, weâll customise settings that match your lifestyle and budget, then back every install with long-term warranties and 24/7 supportâso you can breathe easy and wake up to dry windows every morning.
FAQs
What causes condensation on my windows, and why is it worse in Lancingâs coastal climate?
Condensation forms when warm, moisture-laden indoor air contacts a colder surface such as window glass, causing water vapour to revert to liquid. Homes in Lancing are prone to higher indoor humidity because of the townâs proximity to the sea, frequent rain, and relatively mild winters that encourage occupants to keep windows closed. Everyday activitiesâcooking, showering, drying clothes indoors, even breathingâadd litres of water to the air. If this moisture cannot escape and the indoor temperature is higher than the outside, it settles on the coolest surfaces, typically windows and frames.
How can a whole-home dehumidifier integrated with my heating and air-conditioning system solve the condensation problem?
A whole-home dehumidifier extracts excess water vapour from the air before it is distributed through your ductwork. By maintaining indoor relative humidity between 40 % and 55 %, the unit eliminates the moisture that fuels window condensation, mould growth, musty odours, and dust-mite activity. Because the dehumidifier works in tandem with your HVAC system, it treats every room, not just a single space, giving you consistent comfort and clearer windows throughout the property.
Will adding a dehumidifier affect my existing heating and air-conditioning performance or running costs?
Properly sized equipment actually improves HVAC efficiency. Drier air feels cooler in summer and warmer in winter, allowing you to set the thermostat a few degrees higher or lower without sacrificing comfort. The dehumidifierâs fan draws minimal power and only operates when humidity rises above the setpoint, so the increase in electricity use is usually offset by reduced air-conditioning or heating cycles. Modern units are Energy StarÂŽ certified and add roughly the cost of a few low-energy lightbulbs to your monthly bill.
What is involved in the installation process and how long does it take?
Our certified engineers begin with a free in-home humidity assessment to confirm sizing and placement. On installation day we: 1. Isolate power and inspect the existing ductwork. 2. Mount the dehumidifierâtypically in the loft, airing cupboard, or utility areaâon vibration-damping pads. 3. Connect a dedicated return/supply duct or tie into the central HVAC plenum, depending on layout. 4. Plumb a condensate line to a nearby drain or condensate pump. 5. Wire the control panel or integrate it with your smart thermostat. 6. Commission the system and demonstrate operation. A standard retrofit takes 4â6 hours and is normally completed in one visit with minimal disruption.
How much does professional dehumidifier installation cost in the Lancing area, and are local incentives available?
Prices vary with capacity, controls, and duct configuration, but most homeowners in Lancing invest between ÂŁ1,400 and ÂŁ2,400 inclusive of equipment, labour, and VAT. Larger properties or units with integrated HEPA filtration can cost more. Check the Adur & Worthing Councilsâ Home Energy Efficiency grants or the UK Governmentâs ECO4 scheme; both occasionally provide funding for moisture-control measures when combined with insulation or heat-pump upgrades. Weâll guide you through eligibility and paperwork at no charge.
What ongoing maintenance does the dehumidifier require, and how can I keep it energy-efficient?
Maintenance is straightforward: ⢠Replace or clean the air filter every 3â6 months (more often if you have pets or live near the seafront). ⢠Inspect and flush the condensate line annually to prevent blockages. ⢠Vacuum the heat-exchange coil each year or have it cleaned during your routine HVAC service. ⢠Confirm the humidistat setpoint seasonally (45 % in winter, 50 % in summer is ideal). Scheduling the dehumidifier check alongside your annual boiler or heat-pump service keeps call-out costs down and ensures peak efficiency, saving energy and prolonging equipment life.