Price Guideline - How much does it cost to replace sash windows.

Price Guideline

Wondering About Costs?

How much does it cost to replace sash windows?
What’s the price to upgrade to double-glazed sash windows?

These are some of the most common questions from homeowners looking to restore or improve their sash windows.

Below is a price guideline to give you some idea of the cost of replacing wooden sash windows. There are several options from Draught Proofing to a complete replacement box sash window. We hope this guideline will be of some assistance when budgeting for your window project.

Sash Window Draught Proofing & Broken Sash Cord Replacement

from £150 per window

Upgrade to Double-Glazed Sliding Sashes

from £800 per window

Complete Replacement Single Glazed Sash Windows

from £1350 per window

Complete Replacement Double Glazed Sash Windows

from £1600 per window

Alternatively, if you have any images and/or approximate measurements of your windows, feel free to email them to us, we’ll review the details and send you a preliminary quotation via email.

We offer a choice of premium timber options, including Accoya® wood for outstanding durability and sustainability, Sapele hardwood for strength and a rich natural finish, and Redwood Pine for a classic, cost-effective solution.

Whether you're upgrading to energy-efficient double glazing or choosing a replacement traditional single-glazed window, we tailor each installation to preserve the character of your home.

For enhanced comfort and noise control, high-performance acoustic glazing is also available.

Modern draught-proofing and weather seals for year-round protection. High-quality security locks to give you peace of mind.

Traditional window furniture in Brass, Chrome, Satin, Antique, and Pewter finishes to suit your style.

Is this your Sash Window!

Broken or missing sash cords
Window won’t stay open
Rattles in the wind
Lets in draughts and rainwater
Rot damage to timber sections
Missing or faulty locks and latches
Interior condensation build-up
General state of disrepair

If this sounds familiar, it’s time for a sash window replacement. We restore your windows to full function, beauty, and efficiency—preserving the character of your home while improving comfort and security.