Confidence built in
At GK Joinery, we take pride in every product we make - and we want you to feel confident in them for years to come. That’s why we offer a range of straightforward warranties covering workmanship, glazing, coatings, hardware, and timber.
Just like any high-end product, your windows and doors need a bit of care to stay at their best. We’ve kept it simple and are here if you ever need support.
Our Warranties at a glance
Lignum Range
• 10-year guarantee on timber products
• 5-year guarantee on installation
• 10 years for standard double-glazed units
– First 2 years: unit and labour
– Years 3–10: unit only
• 5 years for slimline/heritage glass (supply only)
• 50-year guarantee against rot (above ground use only)
• 5-year mechanical guarantee
• Surface finishes not covered
• Subject to manufacturer terms
• Up to 12 years depending on colour, exposure and care
– Light colours: longer protection
– Dark colours: require more maintenance
– Coastal and exposed locations: shorter cycles
• Up to 4 years
For bespoke work, please see maintenance manual
Caring for Your Joinery
Our products are built to last - and with a little maintenance, they’ll look and perform beautifully for decades. Follow these simple steps:
Every 3 months
• Clean frames, glass, handles and seals
• Remove dirt, debris and any build-up
• Check for any damage or coating wear and touch up
Once a year
• Lubricate all moving parts
• Oil timber thresholds
• Lightly sand and recoat if needed
A Note on Paint & Stain Warranties
We offer up to 12 years on light paint finishes and up to 4 years on stains - depending on timber, location, colour, and care. Darker colours and coastal or exposed locations may need more frequent maintenance. Our full climate guide is available in the manual.
Making a Claim
In the unlikely event that something goes wrong, please get in touch with our team. You’ll need to provide:
- Proof of purchase
- Date of delivery
- Photos of the issue
We’ll talk you through the next steps and do our best to resolve it quickly and fairly.
Interested in finding out more?
We’re here to help. Talk to our team about how PassivGlas™ can work in your home or project.