Cost of Bespoke Sash Windows in Fulham (2026 Guide)

2026 Pricing Guide · Fulham SW6 · A&J Joinery

Bespoke Sash Window Cost in Fulham — The Complete 2026 Guide

How much do bespoke sash windows cost in Fulham in 2026? This is the most complete, transparent pricing guide available — written by A&J Joinery, a family-run workshop based at Arch 9, Munster Road, Fulham SW6 with over 20 years of experience fitting sash windows across SW6, Chelsea, Hammersmith and South West London.

We cover exact price ranges by timber type, glazing, property type and service — plus the 7 key factors that influence what you'll actually pay, and how to avoid overpaying for a sash window in Fulham.

Bespoke sash window cost Fulham SW6 A&J Joinery
£900Starting Price Per Window
20+Years in Fulham SW6
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At a Glance — 2026 Prices

Average Sash Window Costs in Fulham (2026)

Prices below are supply and fit — including manufacture in our Fulham workshop, delivery and full installation by our own joiners. All prices include VAT.

Softwood Sash Window

£900–£1,800 per window, supply & fit

Engineered pine or softwood. Best for painted finishes. Ideal for sheltered positions. Most affordable option.

Hardwood Sash Window

£1,500–£2,800 per window, supply & fit

Idigbo, meranti or oak. Superior durability and premium painted or stained finish. Recommended for exposed elevations.

Accoya® Sash Window

£1,800–£3,200 per window, supply & fit

50-year rot guarantee. Dimensionally stable, low maintenance. Our first recommendation for Fulham period properties.

Premium / Large Bespoke

£2,500–£3,500+ per window, supply & fit

Oversized units, curved heads, elaborate glazing bars, triple glazing or complex conservation area specifications.

Service / Product Specification Price Range (Supply & Fit)
Softwood sash window Most Affordable Painted finish, double glazed, standard size £900 – £1,800
Hardwood sash window Idigbo / meranti, painted or stained, double glazed £1,500 – £2,800
Accoya® sash window Recommended 50yr rot guarantee, double glazed, any finish £1,800 – £3,200
Oak sash window Premium grain, stained or painted, double glazed £2,000 – £3,500
Large / bespoke sash window Oversized, curved or complex specification £2,500 – £3,500+
Draught-proofing only Existing frame retained, seals fitted £200 – £450
Sash cord replacement Both cords, both sashes per window £100 – £200
Double glazing upgrade Slimline unit into existing frame £150 – £350 extra
Rot repair (epoxy) Per affected section £150 – £400
Full house — Victorian terrace 8–12 windows, softwood double glazed £9,000 – £28,000
Full house — Accoya® recommended Best Value Long-Term 8–12 windows, Accoya double glazed £18,000 – £38,000

All prices include VAT and full installation by A&J Joinery's own craftsmen. Prices correct as of 2026. Contact us for a free written quote specific to your Fulham property.

Get an exact price for your Fulham property

Free survey at your home. Written quote within 48 hours. No obligation — ever.

What Affects the Price

7 Key Factors That Influence Sash Window Cost in Fulham

No two sash window quotes are the same. Here are the 7 factors that most affect what you'll pay — and what to look for when comparing quotes.

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1. Timber Species

The single biggest cost driver. Softwood is most affordable; Accoya adds 30–40% but lasts far longer. Oak commands a premium for its grain and durability. Choosing the right timber for your position and finish saves money long-term.

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2. Window Size

Larger windows require more timber, more glazing and more complex counterbalancing. Bay window sashes and ground-floor full-height sashes in Fulham Victorian terraces are typically 20–35% more expensive than standard first-floor units.

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3. Glazing Specification

Single glazing is rarely fitted today. Standard slimline double glazing adds £150–£350 per window. Acoustic glass (ideal for Fulham's busier roads), solar control glass and triple glazing add further cost but deliver real benefits.

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4. Conservation Area Requirements

Fulham has numerous conservation areas. Replicating original glazing bar profiles, horn details and meeting rail dimensions to satisfy Hammersmith & Fulham Council adds design time and precision manufacturing cost — typically 10–20% more.

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5. Finish & Paint Specification

Factory primer vs. full spray-applied top coat in your chosen colour. A factory-finished window saves on-site painting costs and delivers a more durable result — but adds £80–£180 per window to the supply cost.

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6. Hardware & Security

Standard fitch catches vs. high-security sash locks, heritage brass or chrome hardware, and key-operated security bolts. Hardware upgrades add £50–£200 per window but significantly improve security — important for ground-floor Fulham properties.

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7. Access & Installation Complexity

Ground-floor windows are simplest. Upper-floor windows requiring scaffolding, difficult access or confined rear extensions add £150–£400 per window for access equipment. We always confirm access requirements at the survey stage.

Repair or Replace?

Is It Cheaper to Repair or Replace Sash Windows in Fulham?

This is the question we're asked most often. The honest answer: repair is nearly always cheaper in the short term — but replacement is often better value over 10+ years.

Repair makes sense when:

  • Frames are structurally sound with no major rot
  • The property is in a conservation area where original frames are preferred
  • Budget is the primary constraint right now
  • The windows are less than 30 years old

Replacement makes sense when:

  • Frames have extensive rot or structural failure
  • Windows are draughty despite draught-proofing
  • You want double glazing and the existing frames can't accommodate it
  • You're renovating and want a long-term solution with a guarantee

A&J Joinery will always give you an honest assessment during your free survey — we'll only recommend replacement when it's genuinely the better option for your property.

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Sash window repair vs replacement Fulham SW6

Costs by Property Type

Sash Window Costs by Property Type in Fulham

Fulham's housing stock ranges from grand Victorian terraces to compact Edwardian semis and purpose-built flats. Here's what each typically costs.

Property Type Typical No. of Sash Windows Estimated Total Cost (Softwood) Estimated Total Cost (Accoya®)
Fulham Victorian terrace
2–3 storey, 2–3 bedroom
8 – 12 £9,000 – £21,600 £17,000 – £38,000
Edwardian semi-detached
3–4 bedroom, larger windows
10 – 16 £11,000 – £28,800 £20,000 – £51,000
Converted flat (ground floor)
1–2 bedroom period conversion
2 – 4 £2,000 – £7,200 £4,000 – £12,800
Mansion block flat
Upper floor, standard proportions
3 – 6 £2,800 – £10,800 £5,500 – £19,000
Large detached / townhouse
Chelsea / Kensington, 4–6 bed
14 – 24 £15,000 – £43,000 £28,000 – £77,000

Estimates based on standard double-glazed units. Conservation area replication, non-standard sizes and complex access may add 10–25%. Contact us for a free, property-specific written quote.

A&J Joinery sash window craftsmen Fulham workshop

Why Choose A&J Joinery

Why Get Your Fulham Sash Window Quote from A&J Joinery?

There are many joinery companies quoting for sash windows in Fulham. Here is why A&J Joinery offers the best value — not just the lowest price.

  • Local Fulham workshop — Arch 9, Munster Road SW6 — no transport markups
  • We manufacture in-house — no middlemen, better quality control, faster lead times
  • In-house double glazing — slimline heritage units made by us, not bought in
  • No subcontractors — your windows built and installed by our own craftsmen
  • Transparent written quotes — itemised, no hidden charges, within 48 hours
  • Conservation area specialists — 20+ years navigating Fulham's planning requirements
  • Free survey — we come to your Fulham property at no charge
  • FENSA registered — building regulations compliant
  • 5-year written guarantee — on every installation
  • 5-star Google rating — from verified Fulham homeowners
Book a Free Fulham Survey

Ready to get a proper price for your sash windows?

Free survey across Fulham SW6, Chelsea, Hammersmith and all South West London. Written quote within 48 hours.

What Fulham Homeowners Say

Real Sash Window Reviews from Fulham & South West London

★★★★★

"A&J Joinery replaced all 10 sash windows in our Victorian terrace in Fulham. The quote was clear and itemised, the quality is exceptional and the conservation officer was fully satisfied. Outstanding value."

Sarah & James T. — Fulham SW6, Victorian terrace
★★★★★

"We got 4 quotes for our Chelsea sash windows. A&J Joinery wasn't the cheapest but was the only company that manufactures in their own Fulham workshop. The result — and the guarantee — made them the obvious choice."

David M. — Chelsea SW3
★★★★★

"We chose Accoya windows on A&J's recommendation and 3 years on they look brand new. The 50-year guarantee gave us complete peace of mind. Their pricing was completely transparent from day one."

Rebecca H. — Parsons Green SW6

Get Your Free Sash Window Quote in Fulham Today

Free home survey across Fulham SW6 and all South West London. Written, itemised quote within 48 hours. FENSA registered. 5-year guarantee. No obligation.

Frequently Asked Questions

Sash Window Cost Fulham — FAQs

How much do sash windows cost in Fulham in 2026?
Bespoke timber sash windows in Fulham range from £900–£1,800 per window for softwood, £1,500–£2,800 for hardwood and £1,800–£3,200 for Accoya® — all prices supply and fit including installation by our own joiners. Large or complex bespoke units can reach £3,500+. Contact A&J Joinery for a free written quote specific to your property.
How much does it cost to replace all sash windows in a Fulham Victorian terrace?
A typical Fulham Victorian terrace (2–3 storey, 2–3 bedroom) has 8–12 sash windows. At current 2026 prices: softwood double glazed: £9,000–£21,600 · Accoya® double glazed: £17,000–£38,000. We always provide a free, property-specific written quote before any commitment is made.
Does double glazing cost more for sash windows?
Yes — standard slimline double glazing adds approximately £150–£350 per window compared to single glazing. A&J Joinery manufactures its own heritage double-glazed units in-house at our Fulham workshop, using warm-edge spacer bars and low-e glass. This keeps costs lower than buying units from external suppliers.
Do I need planning permission to replace sash windows in Fulham?
Fulham has numerous conservation areas managed by Hammersmith & Fulham Council. Like-for-like replacement is often permitted development — but the replacement must match the original in material, design and finish. Changes to profile, glazing bar pattern or material type typically require planning consent. A&J Joinery assesses your planning situation during your free survey and manages any applications on your behalf at no additional charge.
Is it cheaper to repair or replace sash windows in Fulham?
Repair is always cheaper short-term: draught-proofing £200–£450 per window · sash cord replacement £100–£200 · rot repair £150–£400 per section. Replacement is better value long-term when frames have significant rot, when you want double glazing that can't be retrofitted, or when the window is over 40 years old. A&J Joinery will give you an honest recommendation during your free survey.
Why is Accoya® more expensive — is it worth it for Fulham?
Accoya® costs 30–50% more than softwood upfront but carries a 50-year manufacturer's guarantee against rot. For Fulham's period properties — often with north-facing or exposed elevations — Accoya® typically saves money over a 20-year period by eliminating the repainting, rot repairs and eventual replacement that softwood requires. A&J Joinery recommends Accoya® as our first choice for most Fulham external sash windows.
How long do timber sash windows last in Fulham?
Properly maintained softwood sash windows: 25–40 years. Hardwood (idigbo, oak): 40–60 years. Accoya®: 50+ years guaranteed. The original Victorian sash windows in many Fulham terraces are 120+ years old — proof that well-made timber sash windows last generations when properly maintained. Painting every 5–7 years is the single most important maintenance task.
Are sash windows more expensive than casement windows?
Yes — typically 15–30% more expensive due to the more complex box frame construction, counter-balance mechanism and larger timber sections required. However, sash windows are the correct window type for Victorian and Edwardian Fulham properties, both for planning compliance in conservation areas and for maintaining property value. Casement windows in a Victorian Fulham terrace can reduce resale value.
How do I get an accurate sash window quote in Fulham?
The only way to get an accurate price is a free in-person survey at your property. Online calculators and phone estimates cannot account for access, frame condition, conservation area requirements or non-standard sizes. A&J Joinery provides free surveys across all of Fulham and South West London, with a clear written quote within 48 hours. Call 020 7731 4333 or use our online contact form.

Where We Work

Sash Window Installations Across Fulham & South West London

A&J Joinery is based in Fulham SW6 and provides sash window surveys and installations across all of South West and West London.

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Call or email our Munster Road workshop. We'll visit your Fulham property, assess every window and give you a clear, itemised written quote — within 48 hours, with no obligation.

Arch 9, 42 Munster Road, Fulham SW6 4EW · FENSA Registered · Company Reg. 10080547