How long until my sealed unit ships?

Standard double-glazed units take 5–7 working days to make and dispatch. Triple-glazed, toughened and laminated units take 10–14 working days. We email you your delivery day the day before.

Are you FENSA registered?

Yes. Pane Relief is FENSA registered for installation work, installer number 43465. FENSA registration confirms our installations comply with Building Regulations Document L (energy efficiency).

What dimensions do I provide?

Measure the visible glass (not the frame), then add 25mm to the width and 25mm to the height, in millimetres.

Do you deliver UK-wide?

Yes, anywhere on mainland UK. Delivery is free to Bristol (BS) postcodes. Everywhere else on the UK mainland it costs £150 + VAT (£180), with no free-delivery threshold. The largest unit we deliver is 2900mm × 1500mm, with a £15 surcharge on any unit over 2000mm.

What postcodes do you cover for installation?

Bristol, Bath, North Somerset and South Gloucestershire, plus Gloucester and towns in Wiltshire and Somerset. Elsewhere on the UK mainland we supply units for you or your installer to fit.

What payment terms do you offer?

We don't offer 30-day credit terms.

Can I return a sealed unit if I measured wrong?

Made-to-measure sealed units can't be returned unless faulty or damaged. If you measured wrongly, we remake the unit and you pay the same price again. You can change or cancel free of charge until production starts. Please report any damage within 24 hours of delivery.

What's the difference between a sealed unit and replacement glass?

A sealed unit is a complete double-glazed assembly: two panes of glass bonded around a spacer bar with desiccant, with air or (as an upgrade) argon gas between the panes. Replacement glass is a single pane. If your unit is misted, you need a new sealed unit, not just glass.

Are your units BS EN 1279 compliant?

Yes. Every Pane Relief sealed unit is made by our partner factory to BS EN 1279, the European durability standard for insulated glass units. This covers gas concentration retention, edge seal integrity, and moisture penetration.

Yes. Apply for a trade account at panerelief.co.uk/pages/bulk-orders. Trade discounts are 5% at 5+ units, 10% at 20+ and 15% at 50+. We don't offer 30-day credit terms.

How do I measure a sealed unit?

Measure the visible glass face, width and height, in millimetres, then add 25mm to the width and 25mm to the height. That is your order size. Our measuring guide: panerelief.co.uk/pages/measuring-guide

What does the 10-year guarantee actually cover?

Seal failure (misting/condensation between panes), gas retention loss, spacer bar failure, glass delamination, and any manufacturing defect. It does not cover accidental damage, incorrect installation by third parties, or normal wear to frame components (which are not part of the sealed unit).

Does the guarantee transfer if I sell my house?

No. Our 10-year guarantee covers the original buyer only and doesn't transfer to a new owner if you sell your property.

How quickly will a replacement unit be delivered?

Standard double-glazed replacement units are made within 5–7 working days; triple, toughened or laminated units take 10–14 working days. We email you your delivery day the day before, and we prioritise warranty replacements.

What if Pane Relief ceases trading?

As a FENSA-registered company, our installations are backed by a 10-year Building Regulations compliance certificate. For supply-only orders, our BS EN 1279 certification means your units were manufactured to an independently verified standard, which may support claims through other channels.

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10-Year Warranty

4.4/5 from 39 Google reviews

Quality Guarantee

Name: Pane Relief
Address: 36 Saltmarsh Drive, Bristol, South West England, BS11 0NG, GB
Telephone: 0117 330 3057
Price range: ££
Rating: 4.4

Every sealed unit we supply is backed by our comprehensive 10-year guarantee covering seal integrity, gas retention, and manufacturing defects.

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Seal Integrity Guaranteed

FENSA Registered

No Quibble Claims

Seal Integrity

If the perimeter seal fails and moisture enters the cavity (causing misting or condensation between panes), we'll replace the unit free of charge.

Gas Retention

Argon and krypton gas fill is guaranteed to remain at effective levels throughout the warranty period, maintaining thermal performance.

Manufacturing Defects

Any defect in materials or workmanship — including spacer bar failure, glass delamination, or coating defects — is fully covered.

Delivery Damage

Units damaged in transit are replaced immediately at no cost. Our specialist packaging is designed to prevent damage, but we cover it if it happens.

Expert Knowledge

The Pane Relief Quality Promise

We stand behind every sealed unit we supply. Our 10-year guarantee isn't just a piece of paper — it's backed by a FENSA-registered company with 25+ years' experience and a track record of quality. It covers the sealed units, our fitting work and coatings (Low-E, self-cleaning, solar) for the original buyer, and doesn't transfer to a new owner.

What makes our guarantee different:

Many online suppliers offer warranties that are difficult to claim against — either because the warranty excludes common failure modes or the company simply doesn't exist when you need them.

Every Pane Relief unit is made for us by a partner factory to our specification, which means we can genuinely stand behind our quality promise. If something goes wrong, you deal directly with us — not a call centre.

How to make a claim:

Contact us with your order number and a photo of the affected unit. We'll assess the claim within 48 hours and arrange a replacement unit if covered. Replacement units are made to the same specification as the original.

If your sealed unit shows signs of seal failure within the warranty period, we replace it. No inspection fees, no excuses, no waiting weeks for a decision.

Seal failure (misting/condensation between panes), gas retention loss, spacer bar failure, glass delamination, and any manufacturing defect. It does not cover accidental damage, incorrect installation by third parties, or normal wear to frame components (which are not part of the sealed unit).
No. Our 10-year guarantee covers the original buyer only and doesn't transfer to a new owner if you sell your property.
Standard double-glazed replacement units are made within 5–7 working days; triple, toughened or laminated units take 10–14 working days. We email you your delivery day the day before, and we prioritise warranty replacements.
As a FENSA-registered company, our installations are backed by a 10-year Building Regulations compliance certificate. For supply-only orders, our BS EN 1279 certification means your units were manufactured to an independently verified standard, which may support claims through other channels.

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Get your free, no-obligation quote today. Most quotes delivered within 24 hours.

Request Free Quote Call 0117 330 3057

Prefer to talk? Call us on 0117 330 3057

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