Replacement sash windows and controls

01 What the advice service covers for an old home

The pages describe free and independent advice for professionals and homeowners on caring for historic and traditionally constructed buildings. Its technical and research team leads work on current conservation issues such as energy efficiency in historic buildings and shares that work with readers. If you own a house with timber sashes, that general scope is the help you can ask for. The page does not publish a sash repair method, a parts list or a choice between repair and replacement. It does not publish drawings or measurements for your frames. You read it to understand the approach to an old building before you ask for trade quotes.

02 How can you speak to a conservation professional

You can call the Technical Advice Line if you need advice about your old building from a conservation professional. Opening hours are Monday to Friday, 9.30am to 12.30pm, and the phone number is 020 7456 0916. The page notes that one advisor is available at a time, so you may need to wait on hold while advisors speak to each caller. Members of the organisation can book calls in advance through the Members Area, and members can book technical advice calls directly. If you plan to ask about sashes, have your building age, wall type and window photos to hand so the short call stays useful. The page does not publish call charges or waiting times, so you treat the hours as the only firm detail.

03 What will you find in the Knowledge Base

The Knowledge Base is described as a growing resource on conserving and caring for old buildings. You can browse it before you call, and you can look up terms that trades use on site. The page does not publish a sash buying guide inside that resource, and it does not publish ratings for frames or glass. It does not publish costs or time scales for repair work. You use it to learn the language of care and repair, so your questions about rattles, rot or paint failure are clear. If a term is new, the related glossary helps you check it rather than guess. You leave product detail and price talk for later, after you understand the building need.

04 What sort of research does the team publish

The technical and research team leads and shares research on current conservation issues such as energy efficiency in historic buildings. The organisation also describes research in new areas such as the energy efficiency performance of old buildings. If you follow that work, you see the questions the team thinks matter for old houses now. You can read the background on free independent conservation advice and then follow the research and briefing pages from there. The page does not publish U values, test results or product data for sash glass. It does not publish a payback calculation for secondary glazing or replacement. You use the research to frame questions, not to choose glass.

05 Do you get draught proofing or glazing choices explained

You come to this topic wanting to compare repair with draught-proofing, slim-profile double glazing or secondary glazing. The page does not publish draught-proofing options, frame sections or seal types. It does not publish glazing specifications, acoustic claims or ventilation advice for sashes. It does not publish a comparison of timber with other frame materials or a view on triple glass for an old opening. If you need that comparison, read how timber compares with uPVC on this site before you call, so you know which questions are about conservation and which are about products. The adviser can then speak to the building care part while you handle product quotes elsewhere.

06 What about costs and conservation controls

You also want a price and a clear yes or no on permission. The page does not publish costs, price ranges or what drives a quote up or down. It does not publish rules for listed status, conservation areas or permitted works, and it does not publish which office decides your case. If your house sits in a sensitive street, read planning rules for windows on this site to see the kinds of control that can apply, then take building care questions to the advice line. Keep those strands apart. A call helps you look after an old building. A separate check on your local planning position settles what you may change.

07 How to use the briefings, notes and glossary

The organisation's advice pages offer more than the call line. The Briefings are described as in-depth documents that explain relevant issues and ideas related to materials and building conservation. The Technical Advice Notes are described as a series of technical and practical advisory publications on the care and repair of old buildings. The glossary covers technical, building and conservation terms. You can use those parts together. Look up a word in the glossary, read the briefing for the relevant conservation topic, then read the note for the care and repair angle. The page does not publish a sash troubleshooting chart or a maintenance calendar. It gives you language and principles, and you bring the details of your house.

The SPAB advice pages are presented as free and independent advice for professionals and homeowners on historic and traditionally constructed buildings. You find a Technical Advice Line, a Knowledge Base, research pages, a glossary, Briefings and Technical Advice Notes. Members can book advice calls through the Members Area.

Note the opening hours, gather a short list of clear questions about caring for your old building, and call during the morning time slot or browse the Knowledge Base and glossary before you call.