--- title: Window Aftercare and Maintenance Guide description: Find aftercare window tips and maintenance steps to keep your frames, seals and glazing in top condition. Cleaning tips, troubleshooting and when to get help. --- - [Request An Appointment](https://www.thermaseal.uk.com/request-an-appointment) - [Get A Free Quote ](https://www.thermaseal.uk.com/get-a-free-quote) - [Contact](https://www.thermaseal.uk.com/contact-us) [![Thermaseal-logo](https://www.thermaseal.uk.com/hs-fs/hubfs/Thermaseal-logo.webp?width=229&height=70&name=Thermaseal-logo.webp "Thermaseal-logo")](https://www.thermaseal.uk.com/) [![Thermaseal-logo](https://www.thermaseal.uk.com/hs-fs/hubfs/Thermaseal-logo.webp?width=229&height=70&name=Thermaseal-logo.webp "Thermaseal-logo")](https://www.thermaseal.uk.com/) - [About Us](https://www.thermaseal.uk.com/about-us) - Products - [Windows](https://www.thermaseal.uk.com/windows) - [uPVC](https://www.thermaseal.uk.com/upvc-windows) - [Aluminium](https://www.thermaseal.uk.com/aluminium-windows) - [Casement](https://www.thermaseal.uk.com/casement-windows) - [Sash](https://www.thermaseal.uk.com/upvc-sash-windows) - [Tilt and Turns](https://www.thermaseal.uk.com/tilt-and-turn-window) - [Doors](https://www.thermaseal.uk.com/doors) - [uPVC and Composite Front Doors](https://www.thermaseal.uk.com/upvc-composite-front-doors) - [French, Patio, and Bi-Fold Doors](https://www.thermaseal.uk.com/french-patio-bifold-doors) - [Conservatories & Orangeries](https://www.thermaseal.uk.com/conservatory-installations) - [Replacement Roofs & Roofline Products](https://www.thermaseal.uk.com/roof-replacement-roofline) - Other Services - [Soffits, Fascias and Guttering](https://www.thermaseal.uk.com/upvc-fascias-soffits-guttering) - [Porch Installations](https://www.thermaseal.uk.com/porch-installations) - Services - [Full Design and Build Service](https://www.thermaseal.uk.com/design-and-build-services) - [Aftercare](https://www.thermaseal.uk.com/door-and-window-aftercare) - [Visit Us](https://www.thermaseal.uk.com/trade) - Resources - [Blog](https://www.thermaseal.uk.com/blog) - [FAQs](https://www.thermaseal.uk.com/faqs) - [Contact us](https://www.thermaseal.uk.com/contact-us) [![Get A Free Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146943416/interactive-279844371684.png)](https://www.thermaseal.uk.com/hs/cta/wi/redirect?encryptedPayload=AVxigLITgG5Dr1bl3XG%2BwYm98dW65pj8rQIphPIekYCPVHABMUZXlGxLvwNMo0ELdQjdDt%2BUdRo3s2lHpYQvP6qadoRbeDndcMRJ5TS0LnTGtgJBNPTDIyTMGgjzGmxOyrSSCF876%2Fk%2Bp6jopSPsPVcYnLfjfbeK28TfTbDQyDZ8bgTAKMLrt%2BEIXEHWv7OJBHAr%2F%2BFyoEi%2FNA%3D%3D&webInteractiveContentId=279844371684&portalId=146943416) [![Get A Free Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146943416/interactive-279844371684.png)](https://www.thermaseal.uk.com/hs/cta/wi/redirect?encryptedPayload=AVxigLITgG5Dr1bl3XG%2BwYm98dW65pj8rQIphPIekYCPVHABMUZXlGxLvwNMo0ELdQjdDt%2BUdRo3s2lHpYQvP6qadoRbeDndcMRJ5TS0LnTGtgJBNPTDIyTMGgjzGmxOyrSSCF876%2Fk%2Bp6jopSPsPVcYnLfjfbeK28TfTbDQyDZ8bgTAKMLrt%2BEIXEHWv7OJBHAr%2F%2BFyoEi%2FNA%3D%3D&webInteractiveContentId=279844371684&portalId=146943416) [![Get A Free Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146943416/interactive-279844371684.png)](https://www.thermaseal.uk.com/hs/cta/wi/redirect?encryptedPayload=AVxigLITgG5Dr1bl3XG%2BwYm98dW65pj8rQIphPIekYCPVHABMUZXlGxLvwNMo0ELdQjdDt%2BUdRo3s2lHpYQvP6qadoRbeDndcMRJ5TS0LnTGtgJBNPTDIyTMGgjzGmxOyrSSCF876%2Fk%2Bp6jopSPsPVcYnLfjfbeK28TfTbDQyDZ8bgTAKMLrt%2BEIXEHWv7OJBHAr%2F%2BFyoEi%2FNA%3D%3D&webInteractiveContentId=279844371684&portalId=146943416) More results - [About Us](https://www.thermaseal.uk.com/about-us) - Products - [Windows](https://www.thermaseal.uk.com/windows) - [uPVC](https://www.thermaseal.uk.com/upvc-windows) - [Aluminium](https://www.thermaseal.uk.com/aluminium-windows) - [Casement](https://www.thermaseal.uk.com/casement-windows) - [Sash](https://www.thermaseal.uk.com/upvc-sash-windows) - [Tilt and Turns](https://www.thermaseal.uk.com/tilt-and-turn-window) - [Doors](https://www.thermaseal.uk.com/doors) - [uPVC and Composite Front Doors](https://www.thermaseal.uk.com/upvc-composite-front-doors) - [French, Patio, and Bi-Fold Doors](https://www.thermaseal.uk.com/french-patio-bifold-doors) - [Conservatories & Orangeries](https://www.thermaseal.uk.com/conservatory-installations) - [Replacement Roofs & Roofline Products](https://www.thermaseal.uk.com/roof-replacement-roofline) - Other Services - [Soffits, Fascias and Guttering](https://www.thermaseal.uk.com/upvc-fascias-soffits-guttering) - [Porch Installations](https://www.thermaseal.uk.com/porch-installations) - Services - [Full Design and Build Service](https://www.thermaseal.uk.com/design-and-build-services) - [Aftercare](https://www.thermaseal.uk.com/door-and-window-aftercare) - [Visit Us](https://www.thermaseal.uk.com/trade) - Resources - [Blog](https://www.thermaseal.uk.com/blog) - [FAQs](https://www.thermaseal.uk.com/faqs) - [Contact us](https://www.thermaseal.uk.com/contact-us) [![Get A Free Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146943416/interactive-279844371684.png)](https://www.thermaseal.uk.com/hs/cta/wi/redirect?encryptedPayload=AVxigLITgG5Dr1bl3XG%2BwYm98dW65pj8rQIphPIekYCPVHABMUZXlGxLvwNMo0ELdQjdDt%2BUdRo3s2lHpYQvP6qadoRbeDndcMRJ5TS0LnTGtgJBNPTDIyTMGgjzGmxOyrSSCF876%2Fk%2Bp6jopSPsPVcYnLfjfbeK28TfTbDQyDZ8bgTAKMLrt%2BEIXEHWv7OJBHAr%2F%2BFyoEi%2FNA%3D%3D&webInteractiveContentId=279844371684&portalId=146943416) #### [![Thermaseal-logo](https://www.thermaseal.uk.com/hs-fs/hubfs/Thermaseal-logo.webp?width=216&height=66&name=Thermaseal-logo.webp)](https://146943416.hs-sites-eu1.com/) [mailto:info@thermaseallimited.co.uk](mailto:info@thermaseallimited.co.uk)  [0115 986 68 99](tel:01159866899) [  info@thermaseallimited.co.uk](mailto:info@thermaseallimited.co.uk) # Window Aftercare [![Call Now: 0115 986 68 99](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146943416/interactive-315523613939.png)](https://www.thermaseal.uk.com/hs/cta/wi/redirect?encryptedPayload=AVxigLIMRVAva%2F5NH52mJ8wYQjetXfO28r%2Fvd4gdvBXtVpBTfnxaP22bC5buKFz%2FgsZYFv3pweLeAbLaBYfN9SRj%2B4FiWpQK5Bub%2BVDewIBGuZ6FOkJklYGeNNu6lpeTFIa7FL49AixHx3g1VCwSr0xnTiMK0A%3D%3D&webInteractiveContentId=315523613939&portalId=146943416) ## We’re Here For You: Long After Installation. At Thermaseal, our commitment to quality doesn’t end once your installation is complete. We believe great service continues for years to come — that’s why every customer benefits from our reliable, friendly **aftercare and maintenance support**. Whether you need help with product maintenance, a minor adjustment, or simply some advice, our team is always here to help — usually resolving queries within 24 hours. ### Guaranteed Peace of Mind Every Thermaseal product is installed to the highest standards and backed by: **10-year insurance-backed guarantee** on frames and workmanship 10-year insurance-backed guarantee on frames and workmanship **5-year guarantee** on glass and hardware 5-year guarantee on glass and hardware **Certass registration** for all installations Certass registration for all installations You’ll also receive a maintenance booklet that explains exactly how to keep your windows, doors, and conservatories performing perfectly. ![548906_471998972810847_1783914622_n](https://www.thermaseal.uk.com/hs-fs/hubfs/548906_471998972810847_1783914622_n.webp?width=600&height=400&name=548906_471998972810847_1783914622_n.webp) ## Maintenance Guides To keep your Thermaseal products in top condition, follow these simple care tips: #### Windows & Doors - Clean frames every 3–4 months with mild detergent - Lubricate hinges and locks annually with silicone-based lubricant - Avoid abrasive cleaners or harsh chemicals #### Composite Doors - Wipe with warm, soapy water - Lubricate hinges and locks every 6 months - Do not use wax polish or solvent cleaners #### Conservatory Roofs - Wash roof panels and frames with soapy water every 4 months - Clear gutters and downpipes regularly to prevent blockages ## Dedicated Support If you ever experience a problem, our aftercare team will arrange a visit quickly. We aim to resolve most service calls **within 24 hours**, so you can relax knowing your home is protected by people who care. [![Call Now: 0115 986 68 99](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146943416/interactive-315523613939.png)](https://www.thermaseal.uk.com/hs/cta/wi/redirect?encryptedPayload=AVxigLIMRVAva%2F5NH52mJ8wYQjetXfO28r%2Fvd4gdvBXtVpBTfnxaP22bC5buKFz%2FgsZYFv3pweLeAbLaBYfN9SRj%2B4FiWpQK5Bub%2BVDewIBGuZ6FOkJklYGeNNu6lpeTFIa7FL49AixHx3g1VCwSr0xnTiMK0A%3D%3D&webInteractiveContentId=315523613939&portalId=146943416) ## Customers Rate Us Highly Explore recent installations from sash window upgrades to warm roof conversions and see how thoughtful design and careful fitting can transform your home. ![google1](https://www.thermaseal.uk.com/hubfs/google1.svg) Reviews 4.9 ★ ★ ★ ★ ★ 30 reviews ❮ ❯ ★ ★ ★ ★ ★ Replaced 30 year old windows!! Excellent service. Prompt and efficient. Fair price too.Left clean and tidy inside and out. — Sharon Walker ★ ★ ★ ★ ★ Brilliant local company. Honest, reliable, quick and efficient service. Wonderful team of lads throughout whole process from enquiry to fitting. Would definitely recommend .. — Jennifer Watson ★ ★ ★ ★ ★ Replaced patio doors. Excellent workmanship. Great couple of lads. Upvc doors are very high quality made. Would recommend 👍👍👍👍👍 — Rhbzuk ★ ★ ★ ★ ★ George and everyone we’ve dealt with at Thermaseal have been a pleasure to do business with. They worked together, as a great team, to look after our needs; from sourcing quality products, to installation, and after-sales care .... — Colin Failes ★ ★ ★ ★ ★ Excellent service. They arrived promptly and did a wonderful and neat job of the new window. Paul was happy to assist with further information which we required. A great team, ... — shaila gallagher ★ ★ ★ ★ ★ Thermaseal replaced two bay windows and two casement windows for us and we would highly recommend them. They were a pleasure to deal with from start to finish, very professional and friendly. They gave us the best quote out of ... — Kate M #### [![Thermaseal-logo](https://www.thermaseal.uk.com/hs-fs/hubfs/Thermaseal-logo.webp?width=216&height=66&name=Thermaseal-logo.webp)](https://www.thermaseal.uk.com/)   [0115 986 68 99](tel:01159866899) [ info@thermaseallimited.co.uk](mailto:info@thermaseallimited.co.uk) Services - [Full Design And Build Service](https://www.thermaseal.uk.com/design-and-build-services) - [Aftercare](https://www.thermaseal.uk.com/door-and-window-aftercare) - [Visit Us](https://www.thermaseal.uk.com/trade) - [Get A Free Quote](https://www.thermaseal.uk.com/get-a-free-quote) Resources - [FAQs](https://www.thermaseal.uk.com/faqs) - [Contact Us](https://www.thermaseal.uk.com/contact-us) - [About Us](https://www.thermaseal.uk.com/about-us) - [Submit Your Pictures](https://www.thermaseal.uk.com/submit-your-pictures) - [Request An Appointment](https://www.thermaseal.uk.com/request-an-appointment) Copyright © 2026 Thermaseal Windows & Doors Ltd. Designed & developed by [JDR Group](http://www.jdrgroup.co.uk). - [Terms](https://www.thermaseal.uk.com/terms-and-conditions) - [Privacy](https://www.thermaseal.uk.com/privacy-policy) - [Cookie](https://www.thermaseal.uk.com/cookie-policy) ```json { "@context" : "https://schema.org", "@type" : "LocalBusiness", "address" : { "@type" : "PostalAddress", "addressCountry" : "UK", "addressLocality" : "Nottingham", "addressRegion" : "Nottinghamshire", "postalCode" : "NG2 3GW", "streetAddress" : "Unit 4 Brand St" }, "alternateName" : "Thermaseal Windows & Doors", "contactPoint" : { "@type" : "ContactPoint", "areaServed" : "GB", "availableLanguage" : "en", "contactType" : "customer service", "telephone" : "+44 115 647 7736" }, "geo" : { "@type" : "GeoCoordinates", "latitude" : 52.9447, "longitude" : -1.1429 }, "image" : "https://www.thermaseal.uk.com/hs-fs/hubfs/UPVC-WIndows-White-Dual-Glazed-Composite-Door-Forest-Close-After.webp", "logo" : "https://www.thermaseal.uk.com/hs-fs/hubfs/Thermaseal-logo.webp", "name" : "Thermaseal Windows & Doors Ltd", "openingHours" : [ "Mo 08:00-17:00", "Tu 08:00-17:00", "We 08:00-17:00", "Th 08:00-17:00", "Fr 08:00-17:00", "Sa Closed", "Su Closed" ], "priceRange" : "£", "sameAs" : [ "https://www.facebook.com/ThermasealLtd/", "https://www.instagram.com/thermasealwindows/" ], "telephone" : "0115 986 68 99", "url" : "https://www.thermaseal.uk.com/" } ``` ```json { "@context" : "https://schema.org", "@type" : "WebPage", "description" : "Find aftercare window tips and maintenance steps to keep your frames, seals and glazing in top condition. Cleaning tips, troubleshooting and when to get help.", "inLanguage" : "en-GB", "name" : "Window Aftercare and Maintenance Guide", "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.thermaseal.uk.com/hs-fs/hubfs/Thermaseal-logo.webp" }, "name" : "Thermaseal Windows & Doors Ltd", "url" : "https://www.thermaseal.uk.com/" }, "url" : "https://www.thermaseal.uk.com/door-and-window-aftercare" } ``` ```json { "@context" : "https://schema.org", "@type" : "BreadcrumbList", "itemListElement" : [ { "@type" : "ListItem", "item" : "https://www.thermaseal.uk.com/", "name" : "Home", "position" : 1 }, { "@type" : "ListItem", "item" : "https://www.thermaseal.uk.com/door-and-window-aftercare", "name" : "Aftercare", "position" : 2 } ] } ```