South London based · Period & modern sash windows · Same-day repairs
Sash window stuck, rattling, or letting in draughts? London's period homes are full of original sash windows — beautiful but prone to worn cords, rotten timber, and draught problems. We repair without replacing, preserving the original character of your property.
What We Fix
Cords, weights, pulleys, draught-proofing, timber repair and locks — we repair original sash windows across London without unnecessary replacement.
Broken sash cords are the most common fault — causing sashes to drop or become immovable. We replace cords and rebalance weights to restore smooth operation.
Brush pile draught excluders fitted to top and bottom sashes and the meeting rail. Dramatically reduces heat loss and noise without altering the window's appearance.
Rotten or damaged timber in sash frames repaired using epoxy fillers and consolidants. Avoids full frame replacement and preserves the original window.
Worn or painted-over pulleys replaced. Staff beads refitted or replaced where they've been painted shut or are preventing the sash from moving freely.
Fitch catches, sash locks, and security locks replaced on single and double-hung sash windows. We also fit restrictors for child safety compliance.
Loose or cracked putty re-pointed. Single glazed units repaired. Secondary glazing fitted to single-glazed sash windows for improved thermal and acoustic performance.
Why BLD
Sash windows are a defining feature of period London properties. A broken cord, stiff mechanism, rattling frame, or draughty seal affects both the look and performance of your home. BLD repair all sash window types — single and double hung — with no call-out fee across London.
Coverage
South London based — same-day sash window repairs across London with no call-out fee.
FAQ
Usually 2–3 hours for both cords on a single window. We carry cords and weights for most common window sizes so we can fix on the same visit in most cases.
Yes. We fit brush-pile and compression seal draught-proofing strips that significantly reduce draughts and noise without affecting the operation of the sashes.
In many cases yes, using slim-profile double glazed units or secondary glazing. We assess each window and advise on the best option for your property.
No — there is never a call-out fee. We confirm the price for the work before we start. You only pay for what we do.
Transparent Pricing
No call-out fee. We confirm a fixed price over the phone before we start. These are typical guides, not maximums.
| Service | From | Typical time |
|---|---|---|
| Sash cord replacement (per cord) | Call for a quote | 45-60 mins |
| Pulley wheel replacement | Call for a quote | 45-60 mins |
| Sash lock / fastener fitting | Call for a quote | 20-30 mins |
| Draught-proofing (per sash) | Call for a quote | 60-120 mins |
| Single pane replacement | Call for a quote | 30-60 mins |
Prices include parts & labour for the most common variants. Unusual locks (high-security commercial cylinders, custom multi-point gearboxes, large shopfront glass) may sit higher — we'll always confirm a fixed price after a quick phone description before we set off.
Repair not replace · Period property specialists · No call-out fee · Fixed price