--- title: "Full-Frame Window Installation in Havering | Complete Fit" description: "New frames and glass installed with full removal of old units. Itemised quotes cover all materials and labour." canonical: "https://www.haveringdoubleglazing.co.uk/services/full-frame-window-installation" lastmod: "2026-11-09T10:21:11.122Z" --- # Full-Frame Window Installation in Havering ![A modern residential house with an orange tiled roof, solar panels, and a neatly paved patio with outdoor seating and lush garden planting.](https://utmost-ibex-736.convex.cloud/api/storage/398522c9-515a-476b-a17a-4650ae048d15) Old frame out, opening inspected, new window sealed and certified, done properly from the start. - **Free On-Site Survey**: An on-site visit records frame condition before any quote is given. - **Itemised Written Quote**: Glass, frames, labour and waste removal listed separately before anything is ordered. - **FENSA Certified**: Compliance paperwork handled by the installer on completion. - **No Upfront Charge**: The survey and written quote are both free, with no obligation. ## The failure modes that a cheaper or rushed window fit leaves behind - **Hidden Rot Ignored**: Fitting into a failing frame leaves rot in the sill and corners, where it continues to spread into the surrounding structure. **Opening Fully Exposed**: Stripping to the bare opening lets the installer check rot spread, damp ingress and lintel movement before the new frame is ordered. - **Weatherproofing Gaps**: A frame seated on a deteriorated sill cannot achieve a consistent perimeter seal, so draughts and water ingress continue after the new window is in. **BS 6375 Sealing**: The new frame is shimmed level, fixed to sound structure, and sealed to BS 6375 weathertightness requirements around the full perimeter. - **Thermal Performance Lost**: Early-generation uPVC frames from the 1980s and 1990s were not built to current Part L thermal standards, so the glazing unit alone cannot close the gap. **Energy-Rated Frame & Glass**: A new frame paired with energy-rated glazing units meets Part L thermal performance criteria in a way the old frame assembly never could. - **No Compliance Record**: Work carried out without FENSA self-certification creates a gap in the property’s compliance history that surfaces at sale or remortgage. **FENSA Self-Certification**: The installer handles FENSA registration on completion, so the compliance paperwork is in order and transferable to a future buyer. ## What full-frame installation covers From a single problem window to a whole-house programme, the scope is the same: frame out, opening checked, new window in. - **uPVC Frame Removal & Replacement**: Early-generation uPVC frames are stripped out, the opening is inspected, and a new uPVC frame is fitted and sealed to current weathertightness standards. - **Timber Frame Removal & Replacement**: Rotten or warped timber frames are fully removed, the sill and surround are checked for damp spread, and a new timber or uPVC frame is installed. - **Aluminium Frame Installation**: Where a slimmer sightline or a period-appropriate look is needed, aluminium frames are fitted into the prepared opening with energy-rated glazing units. - **Whole-House Window Programme**: Multiple windows are scheduled across the property to keep open openings to a minimum at any one time, reducing disruption throughout the job. - **Sash & Trim Fitting**: Sash, trim and internal finishing are fitted as part of the installation, leaving the opening complete and ready without a separate making-good visit. - **Damp & Rot Inspection**: Opening checked for rot spread and damp before the new frame is ordered. - **Trickle Vent Fitting**: Included where Approved Document F requires ventilation. - **Waste Removal**: Old frames and glazing removed and disposed of as part of the job. ## Full frame removal lets the installer see and fix what a simpler job would leave behind The extra disruption of a full-frame installation is justified when the opening itself needs attention before a new window can perform correctly. Inter-war and post-war housing across Havering frequently presents with original timber frames showing rot at the sill and corners, or early-generation uPVC frames from the 1980s and 1990s that have reached end of life. In both cases, fitting a new window into the existing frame would leave the deterioration in place. Full frame removal exposes the opening, so damp, rot spread into the surrounding structure, and any movement in the lintel or sill can be checked before the new frame is ordered. Once the opening is prepared, the new frame, uPVC, timber, or aluminium, is set in, shimmed level and square, and fixed to the structural surround. Sash and trim are fitted, and the full perimeter is sealed and weatherproofed to BS 6375 weathertightness requirements. Energy-rated glazing units are installed as standard, meeting Part L thermal performance criteria. Trickle vents are included where Approved Document F requires them. The written quote covers frame removal, opening inspection and any remedial work, new frame supply, glazing units, labour, and waste removal, each as a separate line item. Whole-house installations across multiple windows are scheduled to keep the number of open openings at any one time to a minimum, reducing disruption. FENSA self-certification is handled by the installer, so the compliance paperwork is in order on completion. [Request a Free Quote](https://www.haveringdoubleglazing.co.uk/contact) ## Why choose us for full-frame window installation in Havering? The assurances that matter when the old frame is coming out and the opening is exposed. - **Survey Before Any Quote**: The property gets an on-site visit to record frame condition and glazing before a figure is given. No guesswork pricing. - **Itemised Quote, Line by Line**: Frame removal, opening work, new frame, glazing, labour and waste removal each appear as separate lines so you see exactly what you are paying for. - **Repair-or-Replace Options Set Out**: The quote states whether a pocket insert or full-frame removal suits each opening, so you can make an informed decision before committing. - **Scheduled to Limit Disruption**: Whole-house jobs are planned to keep the number of open openings at any one time to a minimum throughout the installation. - **FENSA Certification Included**: The installer handles FENSA self-certification on completion, so the compliance record is ready for your property file without a separate application. - **No Charge to Survey or Quote**: The on-site survey and written quote are both free, with no obligation to proceed and nothing to pay before work starts. ## From first contact to finished window in three steps 1. **Request Your Survey**: Tell us the property type and the windows you are concerned about, and we schedule a visit to record the frame condition. 2. **Review Your Quote**: You receive a written, itemised quote covering removal, opening work, new frame, glazing, labour and waste, before anything is ordered or started. 3. **Installation & Certification**: The installer fits the new frames, seals the perimeter, and handles FENSA self-certification so the compliance paperwork is complete on the day. [Request a Free Quote](https://www.haveringdoubleglazing.co.uk/contact) ## Typical Full-Frame Window Installation Prices | Job | Typical cost | Typical duration | | --- | --- | --- | | Full-frame replacement for one window | £550-£1,500 | Half day | | Full-frame replacement for larger window | £900-£2,000 | Half day to 1 day | | Full-frame bay window replacement | £1,490-£3,730 | 1 day | | Full-house full-frame replacement | £5,000-£14,000 | 1-3 days | These prices are estimates and often vary with the condition, size and scope of each job. Message or call us for a free, no-obligation quote. [See all prices](https://www.haveringdoubleglazing.co.uk/pricing) ## Questions about full-frame window installation in Havering ### What does full-frame window installation actually involve? The old window and its frame are fully removed, the opening is inspected for rot, damp and structural movement, and a completely new frame and window are fitted and sealed. It is more involved than fitting a new window into the existing frame, but it addresses problems a simpler job would leave behind. ### Do I need full-frame removal for every window in the house? Not necessarily. The condition of each opening determines the right approach. Where the existing frame is still sound, a pocket insert may be sufficient. Where there is rot, damp or a failing seal around the frame, full removal is the better option. The survey identifies which applies to each window. ### What happens if I delay replacing a failing frame? Rot in a timber frame spreads into the surrounding structure over time. What starts as a localised sill problem can reach the lintel or internal wall, making the eventual repair significantly more involved and more expensive than addressing it at the window stage. ### Why does full-frame installation cost more than a simpler window swap? Removing the old frame takes more labour than leaving it in place, and any remedial work to the opening adds to the time on site. Materials cover the full frame assembly, not just the glazed unit. The itemised quote sets out each element so you can see where the cost sits. ### Is FENSA certification required for window installation in Havering? Yes. [Window installation](https://www.haveringdoubleglazing.co.uk/) in England is notifiable work under Building Regulations. The job either applies for a Building Regulations notice or self-certifies through a scheme such as FENSA. FENSA self-certification is handled as part of the job. ### How long does a full-frame installation take per window? A straightforward opening with no remedial work typically takes a few hours per window. Openings with rot, damp or structural issues take longer. Whole-house programmes are scheduled to keep disruption manageable, and the quote will indicate the expected time on site for your specific job. [More questions about Full-frame window installation?](https://www.haveringdoubleglazing.co.uk/faq/full-frame-window-installation) ## Get an Itemised Window Quote Tell us the symptoms and the property type. We schedule a window survey and return a written quote before anything is ordered. [Request a Free Quote](https://www.haveringdoubleglazing.co.uk/contact) ## Business details ### Contact - **Email**: [contact@haveringdoubleglazing.co.uk](mailto:contact@haveringdoubleglazing.co.uk) - **Based in**: Rainham, Essex, RM13 9YY - **Enquiries**: [Send an enquiry](https://www.haveringdoubleglazing.co.uk/contact) — We ask for your name, phone number, email and a message. ### Opening hours - **Monday**: 08:00 – 18:00 - **Tuesday**: 08:00 – 18:00 - **Wednesday**: 08:00 – 18:00 - **Thursday**: 08:00 – 18:00 - **Friday**: 08:00 – 18:00 - **Saturday**: 10:00 – 16:00 - **Sunday**: 10:00 – 16:00 [Business details](https://www.haveringdoubleglazing.co.uk/about/business.md)