Leakage Checks
Support identifying draughts around windows, doors, loft hatches, floors, service penetrations, and roof spaces.
Air Tightness Testing
Find draughts, uncontrolled air leakage, and hidden heat loss routes that can undermine home comfort and retrofit performance.
Air Tightness Testing
Air tightness testing helps identify where unwanted air is escaping through gaps, cracks, and poorly sealed areas of the building fabric.
Sublime uses this insight to support draught reduction, better comfort, and more effective retrofit planning.
What This Service Includes
Heat Loss Insight
Useful information on where warmth may be escaping unnecessarily.
Retrofit Advice
Practical guidance on sealing, draught reduction, and ventilation considerations.
Why It Matters
Warmer Rooms
Reducing uncontrolled air movement can make a home feel more comfortable.
Better Retrofit Results
Insulation and heating upgrades perform better when air leakage is understood.
Lower Heat Waste
Addressing leaks can reduce the amount of warmth lost through gaps.
Ventilation Balance
Air tightness should be improved with healthy ventilation in mind.
Process
Inspect
We discuss draught concerns and identify likely leakage areas around the building.
Test
Testing support helps locate uncontrolled air leakage and fabric weaknesses.
Improve
Sublime explains suitable draught reduction and retrofit next steps.
Why Choose Sublime
Fabric Understanding
We look at air leakage as part of the wider home energy picture.
Clear Findings
You receive practical guidance on where problems are likely to be and what to do next.
Retrofit-Ready Advice
Our recommendations consider insulation, heating, and ventilation together.
Ready to Improve Your Home?
Find and reduce unwanted heat loss with Sublime air tightness testing. Contact us to discuss draughts, air leakage, and home comfort improvements.
FAQ's
It helps locate uncontrolled air leakage through gaps, cracks, poorly sealed service routes, doors, windows, floors, walls, and roof spaces.
Yes. Draughts and air leakage can increase heat loss and make heating systems work harder.
Yes. A more airtight home still needs appropriate ventilation to protect indoor air quality.
Yes. It can help identify weaknesses before, during, or after improvements so measures perform more effectively.
What Homeowners Have To Say...
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Sarah Wilson ★★★★★
Excellent company. I recently had retrofit assessment work completed by Sublime and could not fault them. The team was friendly, professional, and clear throughout. I would highly recommend them for retrofit services.
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James Harris ★★★★★
I was cautious about starting retrofit work, but Sublime made the process straightforward. They explained the assessment, EPC requirements, and next steps clearly, and I am really pleased with the results.
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Amelia Clarke ★★★★★
Thanks to the team at Sublime for improving the energy performance of my home. The work was completed quicker than expected, communication was excellent, and the service exceeded my expectations.
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Louis Parker ★★★★★
Great job. I was impressed with how the team communicated and the helpful advice they provided. The retrofit guidance was practical, professional, and tailored to my property.
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Olivia Morris ★★★★★
Professionalism at its best. The Sublime team carried out the assessment and planning with care, kept everything clear, and made the whole process feel simple.